diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-09-15 03:54:01 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-09-15 03:54:01 +0200 |
| commit | 0f0d12728e56c94d3289c6831243b6faeae8a19d (patch) | |
| tree | bd52fd4ed6fba2a0d8bb95e7fc33f51ac299001d /fs | |
| parent | Merge branch 'work.set_fs' of git://git.kernel.org/pub/scm/linux/kernel/git/v... (diff) | |
| parent | VFS: Differentiate mount flags (MS_*) from internal superblock flags (diff) | |
| download | linux-0f0d12728e56c94d3289c6831243b6faeae8a19d.tar.xz linux-0f0d12728e56c94d3289c6831243b6faeae8a19d.zip | |
Merge branch 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull mount flag updates from Al Viro:
"Another chunk of fmount preparations from dhowells; only trivial
conflicts for that part. It separates MS_... bits (very grotty
mount(2) ABI) from the struct super_block ->s_flags (kernel-internal,
only a small subset of MS_... stuff).
This does *not* convert the filesystems to new constants; only the
infrastructure is done here. The next step in that series is where the
conflicts would be; that's the conversion of filesystems. It's purely
mechanical and it's better done after the merge, so if you could run
something like
list=$(for i in MS_RDONLY MS_NOSUID MS_NODEV MS_NOEXEC MS_SYNCHRONOUS MS_MANDLOCK MS_DIRSYNC MS_NOATIME MS_NODIRATIME MS_SILENT MS_POSIXACL MS_KERNMOUNT MS_I_VERSION MS_LAZYTIME; do git grep -l $i fs drivers/staging/lustre drivers/mtd ipc mm include/linux; done|sort|uniq|grep -v '^fs/namespace.c$')
sed -i -e 's/\<MS_RDONLY\>/SB_RDONLY/g' \
-e 's/\<MS_NOSUID\>/SB_NOSUID/g' \
-e 's/\<MS_NODEV\>/SB_NODEV/g' \
-e 's/\<MS_NOEXEC\>/SB_NOEXEC/g' \
-e 's/\<MS_SYNCHRONOUS\>/SB_SYNCHRONOUS/g' \
-e 's/\<MS_MANDLOCK\>/SB_MANDLOCK/g' \
-e 's/\<MS_DIRSYNC\>/SB_DIRSYNC/g' \
-e 's/\<MS_NOATIME\>/SB_NOATIME/g' \
-e 's/\<MS_NODIRATIME\>/SB_NODIRATIME/g' \
-e 's/\<MS_SILENT\>/SB_SILENT/g' \
-e 's/\<MS_POSIXACL\>/SB_POSIXACL/g' \
-e 's/\<MS_KERNMOUNT\>/SB_KERNMOUNT/g' \
-e 's/\<MS_I_VERSION\>/SB_I_VERSION/g' \
-e 's/\<MS_LAZYTIME\>/SB_LAZYTIME/g' \
$list
and commit it with something along the lines of 'convert filesystems
away from use of MS_... constants' as commit message, it would save a
quite a bit of headache next cycle"
* 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
VFS: Differentiate mount flags (MS_*) from internal superblock flags
VFS: Convert sb->s_flags & MS_RDONLY to sb_rdonly(sb)
vfs: Add sb_rdonly(sb) to query the MS_RDONLY flag on s_flags
Diffstat (limited to 'fs')
71 files changed, 269 insertions, 278 deletions
diff --git a/fs/affs/amigaffs.c b/fs/affs/amigaffs.c index b573c3b9a328..8cf941c3b511 100644 --- a/fs/affs/amigaffs.c +++ b/fs/affs/amigaffs.c @@ -450,7 +450,7 @@ affs_error(struct super_block *sb, const char *function, const char *fmt, ...) vaf.fmt = fmt; vaf.va = &args; pr_crit("error (device %s): %s(): %pV\n", sb->s_id, function, &vaf); - if (!(sb->s_flags & MS_RDONLY)) + if (!sb_rdonly(sb)) pr_warn("Remounting filesystem read-only\n"); sb->s_flags |= MS_RDONLY; va_end(args); diff --git a/fs/affs/bitmap.c b/fs/affs/bitmap.c index 675148950fed..2b2112475ec2 100644 --- a/fs/affs/bitmap.c +++ b/fs/affs/bitmap.c @@ -19,7 +19,7 @@ affs_count_free_blocks(struct super_block *sb) pr_debug("%s()\n", __func__); - if (sb->s_flags & MS_RDONLY) + if (sb_rdonly(sb)) return 0; mutex_lock(&AFFS_SB(sb)->s_bmlock); diff --git a/fs/affs/super.c b/fs/affs/super.c index 7bf47a41cb4f..884bedab7266 100644 --- a/fs/affs/super.c +++ b/fs/affs/super.c @@ -80,7 +80,7 @@ void affs_mark_sb_dirty(struct super_block *sb) struct affs_sb_info *sbi = AFFS_SB(sb); unsigned long delay; - if (sb->s_flags & MS_RDONLY) + if (sb_rdonly(sb)) return; spin_lock(&sbi->work_lock); @@ -464,7 +464,7 @@ got_root: * not recommended. */ if ((chksum == FS_DCFFS || chksum == MUFS_DCFFS || chksum == FS_DCOFS - || chksum == MUFS_DCOFS) && !(sb->s_flags & MS_RDONLY)) { + || chksum == MUFS_DCOFS) && !sb_rdonly(sb)) { pr_notice("Dircache FS - mounting %s read only\n", sb->s_id); sb->s_flags |= MS_RDONLY; } @@ -596,7 +596,7 @@ affs_remount(struct super_block *sb, int *flags, char *data) memcpy(sbi->s_volume, volume, 32); spin_unlock(&sbi->symlink_lock); - if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY)) + if ((bool)(*flags & MS_RDONLY) == sb_rdonly(sb)) return 0; if (*flags & MS_RDONLY) diff --git a/fs/befs/linuxvfs.c b/fs/befs/linuxvfs.c index 4a4a5a366158..a92355cc453b 100644 --- a/fs/befs/linuxvfs.c +++ b/fs/befs/linuxvfs.c @@ -838,7 +838,7 @@ befs_fill_super(struct super_block *sb, void *data, int silent) befs_debug(sb, "---> %s", __func__); - if (!(sb->s_flags & MS_RDONLY)) { + if (!sb_rdonly(sb)) { befs_warning(sb, "No write support. Marking filesystem read-only"); sb->s_flags |= MS_RDONLY; diff --git a/fs/btrfs/dev-replace.c b/fs/btrfs/dev-replace.c index 7a93a3e1a847..7c655f9a7a50 100644 --- a/fs/btrfs/dev-replace.c +++ b/fs/btrfs/dev-replace.c @@ -704,7 +704,7 @@ static u64 __btrfs_dev_replace_cancel(struct btrfs_fs_info *fs_info) u64 result; int ret; - if (fs_info->sb->s_flags & MS_RDONLY) + if (sb_rdonly(fs_info->sb)) return -EROFS; mutex_lock(&dev_replace->lock_finishing_cancel_unmount); diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index b6dc1d179d23..487bbe4fb3c6 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -2478,7 +2478,7 @@ static int btrfs_replay_log(struct btrfs_fs_info *fs_info, return ret; } - if (fs_info->sb->s_flags & MS_RDONLY) { + if (sb_rdonly(fs_info->sb)) { ret = btrfs_commit_super(fs_info); if (ret) return ret; @@ -2876,7 +2876,7 @@ int open_ctree(struct super_block *sb, features = btrfs_super_compat_ro_flags(disk_super) & ~BTRFS_FEATURE_COMPAT_RO_SUPP; - if (!(sb->s_flags & MS_RDONLY) && features) { + if (!sb_rdonly(sb) && features) { btrfs_err(fs_info, "cannot mount read-write because of unsupported optional features (%llx)", features); @@ -3038,7 +3038,7 @@ retry_root_backup: goto fail_sysfs; } - if (!(sb->s_flags & MS_RDONLY) && !btrfs_check_rw_degradable(fs_info)) { + if (!sb_rdonly(sb) && !btrfs_check_rw_degradable(fs_info)) { btrfs_warn(fs_info, "writeable mount is not allowed due to too many missing devices"); goto fail_sysfs; @@ -3097,7 +3097,7 @@ retry_root_backup: if (ret) goto fail_qgroup; - if (!(sb->s_flags & MS_RDONLY)) { + if (!sb_rdonly(sb)) { ret = btrfs_cleanup_fs_roots(fs_info); if (ret) goto fail_qgroup; @@ -3123,7 +3123,7 @@ retry_root_backup: goto fail_qgroup; } - if (sb->s_flags & MS_RDONLY) + if (sb_rdonly(sb)) return 0; if (btrfs_test_opt(fs_info, CLEAR_CACHE) && @@ -3878,7 +3878,7 @@ void close_ctree(struct btrfs_fs_info *fs_info) cancel_work_sync(&fs_info->async_reclaim_work); - if (!(fs_info->sb->s_flags & MS_RDONLY)) { + if (!sb_rdonly(fs_info->sb)) { /* * If the cleaner thread is stopped and there are * block groups queued for removal, the deletion will be diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 0f077c5db58e..3e5bb0cdd3cd 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -2060,7 +2060,7 @@ int repair_eb_io_failure(struct btrfs_fs_info *fs_info, unsigned long i, num_pages = num_extent_pages(eb->start, eb->len); int ret = 0; - if (fs_info->sb->s_flags & MS_RDONLY) + if (sb_rdonly(fs_info->sb)) return -EROFS; for (i = 0; i < num_pages; i++) { @@ -2110,7 +2110,7 @@ int clean_io_failure(struct btrfs_fs_info *fs_info, failrec->start); goto out; } - if (fs_info->sb->s_flags & MS_RDONLY) + if (sb_rdonly(fs_info->sb)) goto out; spin_lock(&io_tree->lock); diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 17ad018da0a2..128f3e58634f 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -5821,7 +5821,7 @@ struct inode *btrfs_lookup_dentry(struct inode *dir, struct dentry *dentry) if (!IS_ERR(inode) && root != sub_root) { down_read(&fs_info->cleanup_work_sem); - if (!(inode->i_sb->s_flags & MS_RDONLY)) + if (!sb_rdonly(inode->i_sb)) ret = btrfs_orphan_cleanup(sub_root); up_read(&fs_info->cleanup_work_sem); if (ret) { diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index 0ebaf5d116bc..d6715c2bcdc4 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -4426,7 +4426,7 @@ static long btrfs_ioctl_dev_replace(struct btrfs_fs_info *fs_info, switch (p->cmd) { case BTRFS_IOCTL_DEV_REPLACE_CMD_START: - if (fs_info->sb->s_flags & MS_RDONLY) { + if (sb_rdonly(fs_info->sb)) { ret = -EROFS; goto out; } diff --git a/fs/btrfs/root-tree.c b/fs/btrfs/root-tree.c index 9fb9896610e0..95bcc3cce78f 100644 --- a/fs/btrfs/root-tree.c +++ b/fs/btrfs/root-tree.c @@ -228,7 +228,7 @@ int btrfs_find_orphan_roots(struct btrfs_fs_info *fs_info) int ret; bool can_recover = true; - if (fs_info->sb->s_flags & MS_RDONLY) + if (sb_rdonly(fs_info->sb)) can_recover = false; path = btrfs_alloc_path(); diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index 2b13d1a69f0b..35a128acfbd1 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -103,7 +103,7 @@ static void btrfs_handle_error(struct btrfs_fs_info *fs_info) { struct super_block *sb = fs_info->sb; - if (sb->s_flags & MS_RDONLY) + if (sb_rdonly(sb)) return; if (test_bit(BTRFS_FS_STATE_ERROR, &fs_info->fs_state)) { @@ -139,7 +139,7 @@ void __btrfs_handle_fs_error(struct btrfs_fs_info *fs_info, const char *function * Special case: if the error is EROFS, and we're already * under MS_RDONLY, then it is safe here. */ - if (errno == -EROFS && (sb->s_flags & MS_RDONLY)) + if (errno == -EROFS && sb_rdonly(sb)) return; #ifdef CONFIG_PRINTK @@ -1701,8 +1701,7 @@ static inline void btrfs_remount_cleanup(struct btrfs_fs_info *fs_info, * close or the filesystem is read only. */ if (btrfs_raw_test_opt(old_opts, AUTO_DEFRAG) && - (!btrfs_raw_test_opt(fs_info->mount_opt, AUTO_DEFRAG) || - (fs_info->sb->s_flags & MS_RDONLY))) { + (!btrfs_raw_test_opt(fs_info->mount_opt, AUTO_DEFRAG) || sb_rdonly(fs_info->sb))) { btrfs_cleanup_defrag_inodes(fs_info); } @@ -1749,7 +1748,7 @@ static int btrfs_remount(struct super_block *sb, int *flags, char *data) btrfs_resize_thread_pool(fs_info, fs_info->thread_pool_size, old_thread_pool_size); - if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY)) + if ((bool)(*flags & MS_RDONLY) == sb_rdonly(sb)) goto out; if (*flags & MS_RDONLY) { @@ -1850,7 +1849,7 @@ out: restore: /* We've hit an error - don't reset MS_RDONLY */ - if (sb->s_flags & MS_RDONLY) + if (sb_rdonly(sb)) old_flags |= MS_RDONLY; sb->s_flags = old_flags; fs_info->mount_opt = old_opts; diff --git a/fs/btrfs/sysfs.c b/fs/btrfs/sysfs.c index 2b6d37c09a81..883881b16c86 100644 --- a/fs/btrfs/sysfs.c +++ b/fs/btrfs/sysfs.c @@ -120,7 +120,7 @@ static ssize_t btrfs_feature_attr_store(struct kobject *kobj, if (!fs_info) return -EPERM; - if (fs_info->sb->s_flags & MS_RDONLY) + if (sb_rdonly(fs_info->sb)) return -EROFS; ret = kstrtoul(skip_spaces(buf), 0, &val); @@ -390,7 +390,7 @@ static ssize_t btrfs_label_store(struct kobject *kobj, if (!fs_info) return -EPERM; - if (fs_info->sb->s_flags & MS_RDONLY) + if (sb_rdonly(fs_info->sb)) return -EROFS; /* diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index c188256a367c..0e8f16c305df 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -2324,7 +2324,7 @@ int btrfs_init_new_device(struct btrfs_fs_info *fs_info, const char *device_path int seeding_dev = 0; int ret = 0; - if ((sb->s_flags & MS_RDONLY) && !fs_info->fs_devices->seeding) + if (sb_rdonly(sb) && !fs_info->fs_devices->seeding) return -EROFS; bdev = blkdev_get_by_path(device_path, FMODE_WRITE | FMODE_EXCL, @@ -4053,7 +4053,7 @@ int btrfs_pause_balance(struct btrfs_fs_info *fs_info) int btrfs_cancel_balance(struct btrfs_fs_info *fs_info) { - if (fs_info->sb->s_flags & MS_RDONLY) + if (sb_rdonly(fs_info->sb)) return -EROFS; mutex_lock(&fs_info->balance_mutex); diff --git a/fs/cachefiles/bind.c b/fs/cachefiles/bind.c index 3ff867f87d73..d9f001078e08 100644 --- a/fs/cachefiles/bind.c +++ b/fs/cachefiles/bind.c @@ -133,7 +133,7 @@ static int cachefiles_daemon_add_cache(struct cachefiles_cache *cache) goto error_unsupported; ret = -EROFS; - if (root->d_sb->s_flags & MS_RDONLY) + if (sb_rdonly(root->d_sb)) goto error_unsupported; /* determine the security of the on-disk cache as this governs diff --git a/fs/ecryptfs/main.c b/fs/ecryptfs/main.c index 9014479d0160..6b801186baa5 100644 --- a/fs/ecryptfs/main.c +++ b/fs/ecryptfs/main.c @@ -568,8 +568,7 @@ static struct dentry *ecryptfs_mount(struct file_system_type *fs_type, int flags * 1) The lower mount is ro * 2) The ecryptfs_encrypted_view mount option is specified */ - if (path.dentry->d_sb->s_flags & MS_RDONLY || - mount_crypt_stat->flags & ECRYPTFS_ENCRYPTED_VIEW_ENABLED) + if (sb_rdonly(path.dentry->d_sb) || mount_crypt_stat->flags & ECRYPTFS_ENCRYPTED_VIEW_ENABLED) s->s_flags |= MS_RDONLY; s->s_maxbytes = path.dentry->d_sb->s_maxbytes; diff --git a/fs/efs/super.c b/fs/efs/super.c index 368f7dd21c61..5c42f1e34a2f 100644 --- a/fs/efs/super.c +++ b/fs/efs/super.c @@ -306,7 +306,7 @@ static int efs_fill_super(struct super_block *s, void *d, int silent) } brelse(bh); - if (!(s->s_flags & MS_RDONLY)) { + if (!sb_rdonly(s)) { #ifdef DEBUG pr_info("forcing read-only mode\n"); #endif diff --git a/fs/ext2/super.c b/fs/ext2/super.c index fc18edd81815..1458706bd2ec 100644 --- a/fs/ext2/super.c +++ b/fs/ext2/super.c @@ -52,7 +52,7 @@ void ext2_error(struct super_block *sb, const char *function, struct ext2_sb_info *sbi = EXT2_SB(sb); struct ext2_super_block *es = sbi->s_es; - if (!(sb->s_flags & MS_RDONLY)) { + if (!sb_rdonly(sb)) { spin_lock(&sbi->s_lock); sbi->s_mount_state |= EXT2_ERROR_FS; es->s_state |= cpu_to_le16(EXT2_ERROR_FS); @@ -151,7 +151,7 @@ static void ext2_put_super (struct super_block * sb) ext2_xattr_destroy_cache(sbi->s_ea_block_cache); sbi->s_ea_block_cache = NULL; } - if (!(sb->s_flags & MS_RDONLY)) { + if (!sb_rdonly(sb)) { struct ext2_super_block *es = sbi->s_es; spin_lock(&sbi->s_lock); @@ -943,8 +943,7 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent) le32_to_cpu(features)); goto failed_mount; } - if (!(sb->s_flags & MS_RDONLY) && - (features = EXT2_HAS_RO_COMPAT_FEATURE(sb, ~EXT2_FEATURE_RO_COMPAT_SUPP))){ + if (!sb_rdonly(sb) && (features = EXT2_HAS_RO_COMPAT_FEATURE(sb, ~EXT2_FEATURE_RO_COMPAT_SUPP))){ ext2_msg(sb, KERN_ERR, "error: couldn't mount RDWR because of " "unsupported optional features (%x)", le32_to_cpu(features)); @@ -1173,7 +1172,7 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent) if (EXT2_HAS_COMPAT_FEATURE(sb, EXT3_FEATURE_COMPAT_HAS_JOURNAL)) ext2_msg(sb, KERN_WARNING, "warning: mounting ext3 filesystem as ext2"); - if (ext2_setup_super (sb, es, sb->s_flags & MS_RDONLY)) + if (ext2_setup_super (sb, es, sb_rdonly(sb))) sb->s_flags |= MS_RDONLY; ext2_write_super(sb); return 0; @@ -1305,7 +1304,7 @@ static int ext2_unfreeze(struct super_block *sb) static void ext2_write_super(struct super_block *sb) { - if (!(sb->s_flags & MS_RDONLY)) + if (!sb_rdonly(sb)) ext2_sync_fs(sb, 1); } @@ -1343,7 +1342,7 @@ static int ext2_remount (struct super_block * sb, int * flags, char * data) "dax flag with busy inodes while remounting"); sbi->s_mount_opt ^= EXT2_MOUNT_DAX; } - if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY)) { + if ((bool)(*flags & MS_RDONLY) == sb_rdonly(sb)) { spin_unlock(&sbi->s_lock); return 0; } diff --git a/fs/ext4/ext4_jbd2.c b/fs/ext4/ext4_jbd2.c index dd106b1d5d89..5b342ac67d2e 100644 --- a/fs/ext4/ext4_jbd2.c +++ b/fs/ext4/ext4_jbd2.c @@ -47,7 +47,7 @@ static int ext4_journal_check_start(struct super_block *sb) if (unlikely(ext4_forced_shutdown(EXT4_SB(sb)))) return -EIO; - if (sb->s_flags & MS_RDONLY) + if (sb_rdonly(sb)) return -EROFS; WARN_ON(sb->s_writers.frozen == SB_FREEZE_COMPLETE); journal = EXT4_SB(sb)->s_journal; diff --git a/fs/ext4/file.c b/fs/ext4/file.c index 57dcaea762c3..da9c6948ad25 100644 --- a/fs/ext4/file.c +++ b/fs/ext4/file.c @@ -371,7 +371,7 @@ static int ext4_file_open(struct inode * inode, struct file * filp) return -EIO; if (unlikely(!(sbi->s_mount_flags & EXT4_MF_MNTDIR_SAMPLED) && - !(sb->s_flags & MS_RDONLY))) { + !sb_rdonly(sb))) { sbi->s_mount_flags |= EXT4_MF_MNTDIR_SAMPLED; /* * Sample where the filesystem has been mounted and diff --git a/fs/ext4/fsync.c b/fs/ext4/fsync.c index aae2c3971cef..f9230580a84b 100644 --- a/fs/ext4/fsync.c +++ b/fs/ext4/fsync.c @@ -107,7 +107,7 @@ int ext4_sync_file(struct file *file, loff_t start, loff_t end, int datasync) trace_ext4_sync_file_enter(file, datasync); - if (inode->i_sb->s_flags & MS_RDONLY) { + if (sb_rdonly(inode->i_sb)) { /* Make sure that we read updated s_mount_flags value */ smp_rmb(); if (EXT4_SB(inode->i_sb)->s_mount_flags & EXT4_MF_FS_ABORTED) diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c index 71e93a23cec3..ee823022aa34 100644 --- a/fs/ext4/ialloc.c +++ b/fs/ext4/ialloc.c @@ -1382,7 +1382,7 @@ int ext4_init_inode_table(struct super_block *sb, ext4_group_t group, int num, ret = 0, used_blks = 0; /* This should not happen, but just to be sure check this */ - if (sb->s_flags & MS_RDONLY) { + if (sb_rdonly(sb)) { ret = 1; goto out; } diff --git a/fs/ext4/mmp.c b/fs/ext4/mmp.c index 77cdce1f17ce..84c54f15f1dd 100644 --- a/fs/ext4/mmp.c +++ b/fs/ext4/mmp.c @@ -185,7 +185,7 @@ static int kmmpd(void *data) goto exit_thread; } - if (sb->s_flags & MS_RDONLY) { + if (sb_rdonly(sb)) { ext4_warning(sb, "kmmpd being stopped since filesystem " "has been remounted as readonly."); goto exit_thread; diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 71b9a667e1bc..b104096fce9e 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -405,7 +405,7 @@ static void ext4_journal_commit_callback(journal_t *journal, transaction_t *txn) static void ext4_handle_error(struct super_block *sb) { - if (sb->s_flags & MS_RDONLY) + if (sb_rdonly(sb)) return; if (!test_opt(sb, ERRORS_CONT)) { @@ -587,8 +587,7 @@ void __ext4_std_error(struct super_block *sb, const char *function, /* Special case: if the error is EROFS, and we're not already * inside a transaction, then there's really no point in logging * an error. */ - if (errno == -EROFS && journal_current_handle() == NULL && - (sb->s_flags & MS_RDONLY)) + if (errno == -EROFS && journal_current_handle() == NULL && sb_rdonly(sb)) return; if (ext4_error_ratelimit(sb)) { @@ -628,7 +627,7 @@ void __ext4_abort(struct super_block *sb, const char *function, sb->s_id, function, line, &vaf); va_end(args); - if ((sb->s_flags & MS_RDONLY) == 0) { + if (sb_rdonly(sb) == 0) { ext4_msg(sb, KERN_CRIT, "Remounting filesystem read-only"); EXT4_SB(sb)->s_mount_flags |= EXT4_MF_FS_ABORTED; /* @@ -889,11 +888,11 @@ static void ext4_put_super(struct super_block *sb) ext4_mb_release(sb); ext4_ext_release(sb); - if (!(sb->s_flags & MS_RDONLY) && !aborted) { + if (!sb_rdonly(sb) && !aborted) { ext4_clear_feature_journal_needs_recovery(sb); es->s_state = cpu_to_le16(sbi->s_mount_state); } - if (!(sb->s_flags & MS_RDONLY)) + if (!sb_rdonly(sb)) ext4_commit_super(sb, 1); for (i = 0; i < sbi->s_gdb_count; i++) @@ -2100,7 +2099,7 @@ int ext4_seq_options_show(struct seq_file *seq, void *offset) struct super_block *sb = seq->private; int rc; - seq_puts(seq, (sb->s_flags & MS_RDONLY) ? "ro" : "rw"); + seq_puts(seq, sb_rdonly(sb) ? "ro" : "rw"); rc = _ext4_show_options(seq, sb, 1); seq_puts(seq, "\n"); return rc; @@ -2368,7 +2367,7 @@ static int ext4_check_descriptors(struct super_block *sb, "Checksum for group %u failed (%u!=%u)", i, le16_to_cpu(ext4_group_desc_csum(sb, i, gdp)), le16_to_cpu(gdp->bg_checksum)); - if (!(sb->s_flags & MS_RDONLY)) { + if (!sb_rdonly(sb)) { ext4_unlock_group(sb, i); return 0; } @@ -3136,8 +3135,7 @@ int ext4_register_li_request(struct super_block *sb, goto out; } - if (first_not_zeroed == ngroups || - (sb->s_flags & MS_RDONLY) || + if (first_not_zeroed == ngroups || sb_rdonly(sb) || !test_opt(sb, INIT_INODE_TABLE)) goto out; @@ -3683,7 +3681,7 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent) * previously didn't change the revision level when setting the flags, * so there is a chance incompat flags are set on a rev 0 filesystem. */ - if (!ext4_feature_set_ok(sb, (sb->s_flags & MS_RDONLY))) + if (!ext4_feature_set_ok(sb, (sb_rdonly(sb)))) goto failed_mount; blocksize = BLOCK_SIZE << le32_to_cpu(es->s_log_block_size); @@ -3812,12 +3810,12 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent) sbi->s_hash_unsigned = 3; else if ((i & EXT2_FLAGS_SIGNED_HASH) == 0) { #ifdef __CHAR_UNSIGNED__ - if (!(sb->s_flags & MS_RDONLY)) + if (!sb_rdonly(sb)) es->s_flags |= cpu_to_le32(EXT2_FLAGS_UNSIGNED_HASH); sbi->s_hash_unsigned = 3; #else - if (!(sb->s_flags & MS_RDONLY)) + if (!sb_rdonly(sb)) es->s_flags |= cpu_to_le32(EXT2_FLAGS_SIGNED_HASH); #endif @@ -4017,7 +4015,7 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent) needs_recovery = (es->s_last_orphan != 0 || ext4_has_feature_journal_needs_recovery(sb)); - if (ext4_has_feature_mmp(sb) && !(sb->s_flags & MS_RDONLY)) + if (ext4_has_feature_mmp(sb) && !sb_rdonly(sb)) if (ext4_multi_mount_protect(sb, le64_to_cpu(es->s_mmp_block))) goto failed_mount3a; @@ -4029,7 +4027,7 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent) err = ext4_load_journal(sb, es, journal_devnum); if (err) goto failed_mount3a; - } else if (test_opt(sb, NOLOAD) && !(sb->s_flags & MS_RDONLY) && + } else if (test_opt(sb, NOLOAD) && !sb_rdonly(sb) && ext4_has_feature_journal_needs_recovery(sb)) { ext4_msg(sb, KERN_ERR, "required journal recovery " "suppressed and not mounted read-only"); @@ -4143,7 +4141,7 @@ no_journal: goto failed_mount_wq; } - if (DUMMY_ENCRYPTION_ENABLED(sbi) && !(sb->s_flags & MS_RDONLY) && + if (DUMMY_ENCRYPTION_ENABLED(sbi) && !sb_rdonly(sb) && !ext4_has_feature_encrypt(sb)) { ext4_set_feature_encrypt(sb); ext4_commit_super(sb, 1); @@ -4197,7 +4195,7 @@ no_journal: goto failed_mount4; } - if (ext4_setup_super(sb, es, sb->s_flags & MS_RDONLY)) + if (ext4_setup_super(sb, es, sb_rdonly(sb))) sb->s_flags |= MS_RDONLY; /* determine the minimum size of new large inodes, if present */ @@ -4285,7 +4283,7 @@ no_journal: #ifdef CONFIG_QUOTA /* Enable quota usage during mount. */ - if (ext4_has_feature_quota(sb) && !(sb->s_flags & MS_RDONLY)) { + if (ext4_has_feature_quota(sb) && !sb_rdonly(sb)) { err = ext4_enable_quotas(sb); if (err) goto failed_mount8; @@ -4609,7 +4607,7 @@ static int ext4_load_journal(struct super_block *sb, * can get read-write access to the device. */ if (ext4_has_feature_journal_needs_recovery(sb)) { - if (sb->s_flags & MS_RDONLY) { + if (sb_rdonly(sb)) { ext4_msg(sb, KERN_INFO, "INFO: recovery " "required on readonly filesystem"); if (really_read_only) { @@ -4764,8 +4762,7 @@ static void ext4_mark_recovery_complete(struct super_block *sb, if (jbd2_journal_flush(journal) < 0) goto out; - if (ext4_has_feature_journal_needs_recovery(sb) && - sb->s_flags & MS_RDONLY) { + if (ext4_has_feature_journal_needs_recovery(sb) && sb_rdonly(sb)) { ext4_clear_feature_journal_needs_recovery(sb); ext4_commit_super(sb, 1); } @@ -4821,7 +4818,7 @@ int ext4_force_commit(struct super_block *sb) { journal_t *journal; - if (sb->s_flags & MS_RDONLY) + if (sb_rdonly(sb)) return 0; journal = EXT4_SB(sb)->s_journal; @@ -4886,7 +4883,7 @@ static int ext4_freeze(struct super_block *sb) int error = 0; journal_t *journal; - if (sb->s_flags & MS_RDONLY) + if (sb_rdonly(sb)) return 0; journal = EXT4_SB(sb)->s_journal; @@ -4921,7 +4918,7 @@ out: */ static int ext4_unfreeze(struct super_block *sb) { - if ((sb->s_flags & MS_RDONLY) || ext4_forced_shutdown(EXT4_SB(sb))) + if (sb_rdonly(sb) || ext4_forced_shutdown(EXT4_SB(sb))) return 0; if (EXT4_SB(sb)->s_journal) { @@ -5059,7 +5056,7 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data) if (*flags & MS_LAZYTIME) sb->s_flags |= MS_LAZYTIME; - if ((*flags & MS_RDONLY) != (sb->s_flags & MS_RDONLY)) { + if ((bool)(*flags & MS_RDONLY) != sb_rdonly(sb)) { if (sbi->s_mount_flags & EXT4_MF_FS_ABORTED) { err = -EROFS; goto restore_opts; @@ -5154,7 +5151,7 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data) * Reinitialize lazy itable initialization thread based on * current settings */ - if ((sb->s_flags & MS_RDONLY) || !test_opt(sb, INIT_INODE_TABLE)) + if (sb_rdonly(sb) || !test_opt(sb, INIT_INODE_TABLE)) ext4_unregister_li_request(sb); else { ext4_group_t first_not_zeroed; @@ -5731,7 +5728,7 @@ static inline int ext2_feature_set_ok(struct super_block *sb) { if (ext4_has_unknown_ext2_incompat_features(sb)) return 0; - if (sb->s_flags & MS_RDONLY) + if (sb_rdonly(sb)) return 1; if (ext4_has_unknown_ext2_ro_compat_features(sb)) return 0; @@ -5762,7 +5759,7 @@ static inline int ext3_feature_set_ok(struct super_block *sb) return 0; if (!ext4_has_feature_journal(sb)) return 0; - if (sb->s_flags & MS_RDONLY) + if (sb_rdonly(sb)) return 1; if (ext4_has_unknown_ext3_ro_compat_features(sb)) return 0; diff --git a/fs/fat/fatent.c b/fs/fat/fatent.c index 1d9a8c4e9de0..48b2336692f9 100644 --- a/fs/fat/fatent.c +++ b/fs/fat/fatent.c @@ -309,7 +309,7 @@ static void mark_fsinfo_dirty(struct super_block *sb) { struct msdos_sb_info *sbi = MSDOS_SB(sb); - if (sb->s_flags & MS_RDONLY || sbi->fat_bits != 32) + if (sb_rdonly(sb) || sbi->fat_bits != 32) return; __mark_inode_dirty(sbi->fsinfo_inode, I_DIRTY_SYNC); diff --git a/fs/fat/inode.c b/fs/fat/inode.c index a2c05f2ada6d..30c52394a7ad 100644 --- a/fs/fat/inode.c +++ b/fs/fat/inode.c @@ -657,7 +657,7 @@ static void fat_set_state(struct super_block *sb, struct msdos_sb_info *sbi = MSDOS_SB(sb); /* do not change any thing if mounted read only */ - if ((sb->s_flags & MS_RDONLY) && !force) + if (sb_rdonly(sb) && !force) return; /* do not change state if fs was dirty */ @@ -787,7 +787,7 @@ static int fat_remount(struct super_block *sb, int *flags, char *data) /* make sure we update state on remount. */ new_rdonly = *flags & MS_RDONLY; - if (new_rdonly != (sb->s_flags & MS_RDONLY)) { + if (new_rdonly != sb_rdonly(sb)) { if (new_rdonly) fat_set_state(sb, 0, 0); else diff --git a/fs/fat/misc.c b/fs/fat/misc.c index 8a8698119ff7..acc3aa30ee54 100644 --- a/fs/fat/misc.c +++ b/fs/fat/misc.c @@ -32,7 +32,7 @@ void __fat_fs_error(struct super_block *sb, int report, const char *fmt, ...) if (opts->errors == FAT_ERRORS_PANIC) panic("FAT-fs (%s): fs panic from previous error\n", sb->s_id); - else if (opts->errors == FAT_ERRORS_RO && !(sb->s_flags & MS_RDONLY)) { + else if (opts->errors == FAT_ERRORS_RO && !sb_rdonly(sb)) { sb->s_flags |= MS_RDONLY; fat_msg(sb, KERN_ERR, "Filesystem has been set read-only"); } diff --git a/fs/gfs2/glops.c b/fs/gfs2/glops.c index dac6559e2195..cdd1c5f06f45 100644 --- a/fs/gfs2/glops.c +++ b/fs/gfs2/glops.c @@ -554,7 +554,7 @@ static void iopen_go_callback(struct gfs2_glock *gl, bool remote) struct gfs2_inode *ip = gl->gl_object; struct gfs2_sbd *sdp = gl->gl_name.ln_sbd; - if (!remote || (sdp->sd_vfs->s_flags & MS_RDONLY)) + if (!remote || sb_rdonly(sdp->sd_vfs)) return; if (gl->gl_demote_state == LM_ST_UNLOCKED && diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c index 84593587691d..a3711f543405 100644 --- a/fs/gfs2/ops_fstype.c +++ b/fs/gfs2/ops_fstype.c @@ -1037,7 +1037,7 @@ void gfs2_online_uevent(struct gfs2_sbd *sdp) char ro[20]; char spectator[20]; char *envp[] = { ro, spectator, NULL }; - sprintf(ro, "RDONLY=%d", (sb->s_flags & MS_RDONLY) ? 1 : 0); + sprintf(ro, "RDONLY=%d", sb_rdonly(sb)); sprintf(spectator, "SPECTATOR=%d", sdp->sd_args.ar_spectator ? 1 : 0); kobject_uevent_env(&sdp->sd_kobj, KOBJ_ONLINE, envp); } @@ -1179,7 +1179,7 @@ static int fill_super(struct super_block *sb, struct gfs2_args *args, int silent goto fail_per_node; } - if (!(sb->s_flags & MS_RDONLY)) { + if (!sb_rdonly(sb)) { error = gfs2_make_fs_rw(sdp); if (error) { fs_err(sdp, "can't make FS RW: %d\n", error); diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c index e647938432bd..e700fb162664 100644 --- a/fs/gfs2/quota.c +++ b/fs/gfs2/quota.c @@ -452,7 +452,7 @@ static int qd_fish(struct gfs2_sbd *sdp, struct gfs2_quota_data **qdp) *qdp = NULL; - if (sdp->sd_vfs->s_flags & MS_RDONLY) + if (sb_rdonly(sdp->sd_vfs)) return 0; spin_lock(&qd_lock); diff --git a/fs/gfs2/recovery.c b/fs/gfs2/recovery.c index 113b6095a58d..9395a3db1a60 100644 --- a/fs/gfs2/recovery.c +++ b/fs/gfs2/recovery.c @@ -522,7 +522,7 @@ void gfs2_recover_func(struct work_struct *work) if (!test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags)) ro = 1; } else { - if (sdp->sd_vfs->s_flags & MS_RDONLY) { + if (sb_rdonly(sdp->sd_vfs)) { /* check if device itself is read-only */ ro = bdev_read_only(sdp->sd_vfs->s_bdev); if (!ro) { diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c index 769841185ce5..8e54f2e3a304 100644 --- a/fs/gfs2/super.c +++ b/fs/gfs2/super.c @@ -893,7 +893,7 @@ restart: } spin_unlock(&sdp->sd_jindex_spin); - if (!(sb->s_flags & MS_RDONLY)) { + if (!sb_rdonly(sb)) { error = gfs2_make_fs_ro(sdp); if (error) gfs2_io_error(sdp); @@ -1569,7 +1569,7 @@ static void gfs2_evict_inode(struct inode *inode) return; } - if (inode->i_nlink || (sb->s_flags & MS_RDONLY)) + if (inode->i_nlink || sb_rdonly(sb)) goto out; if (test_bit(GIF_ALLOC_FAILED, &ip->i_flags)) { diff --git a/fs/gfs2/sys.c b/fs/gfs2/sys.c index ca1f97ff898c..9eb9d0a1abd9 100644 --- a/fs/gfs2/sys.c +++ b/fs/gfs2/sys.c @@ -645,7 +645,7 @@ int gfs2_sys_fs_add(struct gfs2_sbd *sdp) char *envp[] = { ro, spectator, NULL }; int sysfs_frees_sdp = 0; - sprintf(ro, "RDONLY=%d", (sb->s_flags & MS_RDONLY) ? 1 : 0); + sprintf(ro, "RDONLY=%d", sb_rdonly(sb)); sprintf(spectator, "SPECTATOR=%d", sdp->sd_args.ar_spectator ? 1 : 0); sdp->sd_kobj.kset = gfs2_kset; diff --git a/fs/hfs/mdb.c b/fs/hfs/mdb.c index 482081bcdf70..894994d2c885 100644 --- a/fs/hfs/mdb.c +++ b/fs/hfs/mdb.c @@ -210,7 +210,7 @@ int hfs_mdb_get(struct super_block *sb) pr_warn("filesystem is marked locked, mounting read-only.\n"); sb->s_flags |= MS_RDONLY; } - if (!(sb->s_flags & MS_RDONLY)) { + if (!sb_rdonly(sb)) { /* Mark the volume uncleanly unmounted in case we crash */ attrib &= cpu_to_be16(~HFS_SB_ATTRIB_UNMNT); attrib |= cpu_to_be16(HFS_SB_ATTRIB_INCNSTNT); @@ -259,7 +259,7 @@ void hfs_mdb_commit(struct super_block *sb) { struct hfs_mdb *mdb = HFS_SB(sb)->mdb; - if (sb->s_flags & MS_RDONLY) + if (sb_rdonly(sb)) return; lock_buffer(HFS_SB(sb)->mdb_bh); @@ -334,7 +334,7 @@ void hfs_mdb_commit(struct super_block *sb) void hfs_mdb_close(struct super_block *sb) { /* update volume attributes */ - if (sb->s_flags & MS_RDONLY) + if (sb_rdonly(sb)) return; HFS_SB(sb)->mdb->drAtrb |= cpu_to_be16(HFS_SB_ATTRIB_UNMNT); HFS_SB(sb)->mdb->drAtrb &= cpu_to_be16(~HFS_SB_ATTRIB_INCNSTNT); diff --git a/fs/hfs/super.c b/fs/hfs/super.c index bf6304a350a6..7e0d65e9586c 100644 --- a/fs/hfs/super.c +++ b/fs/hfs/super.c @@ -71,7 +71,7 @@ void hfs_mark_mdb_dirty(struct super_block *sb) struct hfs_sb_info *sbi = HFS_SB(sb); unsigned long delay; - if (sb->s_flags & MS_RDONLY) + if (sb_rdonly(sb)) return; spin_lock(&sbi->work_lock); @@ -115,7 +115,7 @@ static int hfs_remount(struct super_block *sb, int *flags, char *data) { sync_filesystem(sb); *flags |= MS_NODIRATIME; - if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY)) + if ((bool)(*flags & MS_RDONLY) == sb_rdonly(sb)) return 0; if (!(*flags & MS_RDONLY)) { if (!(HFS_SB(sb)->mdb->drAtrb & cpu_to_be16(HFS_SB_ATTRIB_UNMNT))) { diff --git a/fs/hfsplus/super.c b/fs/hfsplus/super.c index 67aedf4c2e7c..e5bb2de2262a 100644 --- a/fs/hfsplus/super.c +++ b/fs/hfsplus/super.c @@ -264,7 +264,7 @@ void hfsplus_mark_mdb_dirty(struct super_block *sb) struct hfsplus_sb_info *sbi = HFSPLUS_SB(sb); unsigned long delay; - if (sb->s_flags & MS_RDONLY) + if (sb_rdonly(sb)) return; spin_lock(&sbi->work_lock); @@ -284,7 +284,7 @@ static void hfsplus_put_super(struct super_block *sb) cancel_delayed_work_sync(&sbi->sync_work); - if (!(sb->s_flags & MS_RDONLY) && sbi->s_vhdr) { + if (!sb_rdonly(sb) && sbi->s_vhdr) { struct hfsplus_vh *vhdr = sbi->s_vhdr; vhdr->modify_date = hfsp_now2mt(); @@ -329,7 +329,7 @@ static int hfsplus_statfs(struct dentry *dentry, struct kstatfs *buf) static int hfsplus_remount(struct super_block *sb, int *flags, char *data) { sync_filesystem(sb); - if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY)) + if ((bool)(*flags & MS_RDONLY) == sb_rdonly(sb)) return 0; if (!(*flags & MS_RDONLY)) { struct hfsplus_vh *vhdr = HFSPLUS_SB(sb)->s_vhdr; @@ -462,7 +462,7 @@ static int hfsplus_fill_super(struct super_block *sb, void *data, int silent) pr_warn("Filesystem is marked locked, mounting read-only.\n"); sb->s_flags |= MS_RDONLY; } else if ((vhdr->attributes & cpu_to_be32(HFSPLUS_VOL_JOURNALED)) && - !(sb->s_flags & MS_RDONLY)) { + !sb_rdonly(sb)) { pr_warn("write access to a journaled filesystem is not supported, use the force option at your own risk, mounting read-only.\n"); sb->s_flags |= MS_RDONLY; } @@ -535,7 +535,7 @@ static int hfsplus_fill_super(struct super_block *sb, void *data, int silent) } else hfs_find_exit(&fd); - if (!(sb->s_flags & MS_RDONLY)) { + if (!sb_rdonly(sb)) { /* * H+LX == hfsplusutils, H+Lx == this driver, H+lx is unused * all three are registered with Apple for our use diff --git a/fs/hpfs/alloc.c b/fs/hpfs/alloc.c index d6a4b55d2ab0..098bf0f4f386 100644 --- a/fs/hpfs/alloc.c +++ b/fs/hpfs/alloc.c @@ -538,7 +538,7 @@ int hpfs_trim_fs(struct super_block *s, u64 start, u64 end, u64 minlen, unsigned return 0; if (start < sbi->sb_dirband_start + sbi->sb_dirband_size && end > sbi->sb_dirband_start) { hpfs_lock(s); - if (s->s_flags & MS_RDONLY) { + if (sb_rdonly(s)) { err = -EROFS; goto unlock_1; } @@ -559,7 +559,7 @@ unlock_1: end_bmp = (end + 0x3fff) >> 14; while (start_bmp < end_bmp && !err) { hpfs_lock(s); - if (s->s_flags & MS_RDONLY) { + if (sb_rdonly(s)) { err = -EROFS; goto unlock_2; } diff --git a/fs/hpfs/dir.c b/fs/hpfs/dir.c index 7b9150c2e75c..fa6bbb4f509f 100644 --- a/fs/hpfs/dir.c +++ b/fs/hpfs/dir.c @@ -264,7 +264,7 @@ struct dentry *hpfs_lookup(struct inode *dir, struct dentry *dentry, unsigned in hpfs_result = hpfs_i(result); if (!de->directory) hpfs_result->i_parent_dir = dir->i_ino; - if (de->has_acl || de->has_xtd_perm) if (!(dir->i_sb->s_flags & MS_RDONLY)) { + if (de->has_acl || de->has_xtd_perm) if (!sb_rdonly(dir->i_sb)) { hpfs_error(result->i_sb, "ACLs or XPERM found. This is probably HPFS386. This driver doesn't support it now. Send me some info on these structures"); goto bail1; } diff --git a/fs/hpfs/super.c b/fs/hpfs/super.c index 82067ca22f2b..1516fb4e28f4 100644 --- a/fs/hpfs/super.c +++ b/fs/hpfs/super.c @@ -21,7 +21,7 @@ static void mark_dirty(struct super_block *s, int remount) { - if (hpfs_sb(s)->sb_chkdsk && (remount || !(s->s_flags & MS_RDONLY))) { + if (hpfs_sb(s)->sb_chkdsk && (remount || !sb_rdonly(s))) { struct buffer_head *bh; struct hpfs_spare_block *sb; if ((sb = hpfs_map_sector(s, 17, &bh, 0))) { @@ -41,7 +41,7 @@ static void unmark_dirty(struct super_block *s) { struct buffer_head *bh; struct hpfs_spare_block *sb; - if (s->s_flags & MS_RDONLY) return; + if (sb_rdonly(s)) return; sync_blockdev(s->s_bdev); if ((sb = hpfs_map_sector(s, 17, &bh, 0))) { sb->dirty = hpfs_sb(s)->sb_chkdsk > 1 - hpfs_sb(s)->sb_was_error; @@ -73,14 +73,14 @@ void hpfs_error(struct super_block *s, const char *fmt, ...) mark_dirty(s, 0); panic("HPFS panic"); } else if (hpfs_sb(s)->sb_err == 1) { - if (s->s_flags & MS_RDONLY) + if (sb_rdonly(s)) pr_cont("; already mounted read-only\n"); else { pr_cont("; remounting read-only\n"); mark_dirty(s, 0); s->s_flags |= MS_RDONLY; } - } else if (s->s_flags & MS_RDONLY) + } else if (sb_rdonly(s)) pr_cont("; going on - but anything won't be destroyed because it's read-only\n"); else pr_cont("; corrupted filesystem mounted read/write - your computer will explode within 20 seconds ... but you wanted it so!\n"); @@ -607,8 +607,7 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent) } /* Check version */ - if (!(s->s_flags & MS_RDONLY) && - superblock->funcversion != 2 && superblock->funcversion != 3) { + if (!sb_rdonly(s) && superblock->funcversion != 2 && superblock->funcversion != 3) { pr_err("Bad version %d,%d. Mount readonly to go around\n", (int)superblock->version, (int)superblock->funcversion); pr_err("please try recent version of HPFS driver at http://artax.karlin.mff.cuni.cz/~mikulas/vyplody/hpfs/index-e.cgi and if it still can't understand this format, contact author - mikulas@artax.karlin.mff.cuni.cz\n"); @@ -666,7 +665,7 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent) hpfs_error(s, "improperly stopped"); } - if (!(s->s_flags & MS_RDONLY)) { + if (!sb_rdonly(s)) { spareblock->dirty = 1; spareblock->old_wrote = 0; mark_buffer_dirty(bh2); diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c index f1ed935322db..db692f554158 100644 --- a/fs/isofs/inode.c +++ b/fs/isofs/inode.c @@ -737,7 +737,7 @@ static int isofs_fill_super(struct super_block *s, void *data, int silent) root_found: /* We don't support read-write mounts */ - if (!(s->s_flags & MS_RDONLY)) { + if (!sb_rdonly(s)) { error = -EACCES; goto out_freebh; } diff --git a/fs/jffs2/fs.c b/fs/jffs2/fs.c index 76fa814df3d1..e96c6b05e43e 100644 --- a/fs/jffs2/fs.c +++ b/fs/jffs2/fs.c @@ -395,14 +395,14 @@ int jffs2_do_remount_fs(struct super_block *sb, int *flags, char *data) { struct jffs2_sb_info *c = JFFS2_SB_INFO(sb); - if (c->flags & JFFS2_SB_FLAG_RO && !(sb->s_flags & MS_RDONLY)) + if (c->flags & JFFS2_SB_FLAG_RO && !sb_rdonly(sb)) return -EROFS; /* We stop if it was running, then restart if it needs to. This also catches the case where it was stopped and this is just a remount to restart it. Flush the writebuffer, if neccecary, else we loose it */ - if (!(sb->s_flags & MS_RDONLY)) { + if (!sb_rdonly(sb)) { jffs2_stop_garbage_collect_thread(c); mutex_lock(&c->alloc_sem); jffs2_flush_wbuf_pad(c); @@ -590,7 +590,7 @@ int jffs2_do_fill_super(struct super_block *sb, void *data, int silent) sb->s_blocksize = PAGE_SIZE; sb->s_blocksize_bits = PAGE_SHIFT; sb->s_magic = JFFS2_SUPER_MAGIC; - if (!(sb->s_flags & MS_RDONLY)) + if (!sb_rdonly(sb)) jffs2_start_garbage_collect_thread(c); return 0; diff --git a/fs/jffs2/super.c b/fs/jffs2/super.c index 5ef21f4c4c77..153f1c6eb169 100644 --- a/fs/jffs2/super.c +++ b/fs/jffs2/super.c @@ -342,7 +342,7 @@ static void jffs2_put_super (struct super_block *sb) static void jffs2_kill_sb(struct super_block *sb) { struct jffs2_sb_info *c = JFFS2_SB_INFO(sb); - if (!(sb->s_flags & MS_RDONLY)) + if (!sb_rdonly(sb)) jffs2_stop_garbage_collect_thread(c); kill_mtd_super(sb); kfree(c); diff --git a/fs/jffs2/wbuf.c b/fs/jffs2/wbuf.c index 48d9522e209c..2cfe487708e0 100644 --- a/fs/jffs2/wbuf.c +++ b/fs/jffs2/wbuf.c @@ -1162,7 +1162,7 @@ static void delayed_wbuf_sync(struct work_struct *work) struct jffs2_sb_info *c = work_to_sb(work); struct super_block *sb = OFNI_BS_2SFFJ(c); - if (!(sb->s_flags & MS_RDONLY)) { + if (!sb_rdonly(sb)) { jffs2_dbg(1, "%s()\n", __func__); jffs2_flush_wbuf_gc(c, 0); } @@ -1173,7 +1173,7 @@ void jffs2_dirty_trigger(struct jffs2_sb_info *c) struct super_block *sb = OFNI_BS_2SFFJ(c); unsigned long delay; - if (sb->s_flags & MS_RDONLY) + if (sb_rdonly(sb)) return; delay = msecs_to_jiffies(dirty_writeback_interval * 10); diff --git a/fs/jfs/jfs_mount.c b/fs/jfs/jfs_mount.c index 9895595fd2f2..d8658607bf46 100644 --- a/fs/jfs/jfs_mount.c +++ b/fs/jfs/jfs_mount.c @@ -362,7 +362,7 @@ static int chkSuper(struct super_block *sb) /* validate fs state */ if (j_sb->s_state != cpu_to_le32(FM_CLEAN) && - !(sb->s_flags & MS_RDONLY)) { + !sb_rdonly(sb)) { jfs_err("jfs_mount: Mount Failure: File System Dirty."); rc = -EINVAL; goto out; diff --git a/fs/jfs/super.c b/fs/jfs/super.c index 60726ae7cf26..2f14677169c3 100644 --- a/fs/jfs/super.c +++ b/fs/jfs/super.c @@ -76,7 +76,7 @@ static void jfs_handle_error(struct super_block *sb) { struct jfs_sb_info *sbi = JFS_SBI(sb); - if (sb->s_flags & MS_RDONLY) + if (sb_rdonly(sb)) return; updateSuper(sb, FM_DIRTY); @@ -468,7 +468,7 @@ static int jfs_remount(struct super_block *sb, int *flags, char *data) return -EINVAL; if (newLVSize) { - if (sb->s_flags & MS_RDONLY) { + if (sb_rdonly(sb)) { pr_err("JFS: resize requires volume to be mounted read-write\n"); return -EROFS; } @@ -477,7 +477,7 @@ static int jfs_remount(struct super_block *sb, int *flags, char *data) return rc; } - if ((sb->s_flags & MS_RDONLY) && !(*flags & MS_RDONLY)) { + if (sb_rdonly(sb) && !(*flags & MS_RDONLY)) { /* * Invalidate any previously read metadata. fsck may have * changed the on-disk data since we mounted r/o @@ -493,7 +493,7 @@ static int jfs_remount(struct super_block *sb, int *flags, char *data) dquot_resume(sb, -1); return ret; } - if ((!(sb->s_flags & MS_RDONLY)) && (*flags & MS_RDONLY)) { + if (!sb_rdonly(sb) && (*flags & MS_RDONLY)) { rc = dquot_suspend(sb, -1); if (rc < 0) return rc; @@ -502,7 +502,7 @@ static int jfs_remount(struct super_block *sb, int *flags, char *data) return rc; } if ((JFS_SBI(sb)->flag & JFS_NOINTEGRITY) != (flag & JFS_NOINTEGRITY)) - if (!(sb->s_flags & MS_RDONLY)) { + if (!sb_rdonly(sb)) { rc = jfs_umount_rw(sb); if (rc) return rc; @@ -592,7 +592,7 @@ static int jfs_fill_super(struct super_block *sb, void *data, int silent) jfs_err("jfs_mount failed w/return code = %d", rc); goto out_mount_failed; } - if (sb->s_flags & MS_RDONLY) + if (sb_rdonly(sb)) sbi->log = NULL; else { rc = jfs_mount_rw(sb, 0); @@ -652,7 +652,7 @@ static int jfs_freeze(struct super_block *sb) struct jfs_log *log = sbi->log; int rc = 0; - if (!(sb->s_flags & MS_RDONLY)) { + if (!sb_rdonly(sb)) { txQuiesce(sb); rc = lmLogShutdown(log); if (rc) { @@ -682,7 +682,7 @@ static int jfs_unfreeze(struct super_block *sb) struct jfs_log *log = sbi->log; int rc = 0; - if (!(sb->s_flags & MS_RDONLY)) { + if (!sb_rdonly(sb)) { rc = updateSuper(sb, FM_MOUNT); if (rc) { jfs_error(sb, "updateSuper failed\n"); diff --git a/fs/minix/inode.c b/fs/minix/inode.c index 6ac76b0434e9..b6829d679643 100644 --- a/fs/minix/inode.c +++ b/fs/minix/inode.c @@ -42,7 +42,7 @@ static void minix_put_super(struct super_block *sb) int i; struct minix_sb_info *sbi = minix_sb(sb); - if (!(sb->s_flags & MS_RDONLY)) { + if (!sb_rdonly(sb)) { if (sbi->s_version != MINIX_V3) /* s_state is now out from V3 sb */ sbi->s_ms->s_state = sbi->s_mount_state; mark_buffer_dirty(sbi->s_sbh); @@ -125,7 +125,7 @@ static int minix_remount (struct super_block * sb, int * flags, char * data) sync_filesystem(sb); ms = sbi->s_ms; - if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY)) + if ((bool)(*flags & MS_RDONLY) == sb_rdonly(sb)) return 0; if (*flags & MS_RDONLY) { if (ms->s_state & MINIX_VALID_FS || @@ -293,7 +293,7 @@ static int minix_fill_super(struct super_block *s, void *data, int silent) if (!s->s_root) goto out_no_root; - if (!(s->s_flags & MS_RDONLY)) { + if (!sb_rdonly(s)) { if (sbi->s_version != MINIX_V3) /* s_state is now out from V3 sb */ ms->s_state &= ~MINIX_VALID_FS; mark_buffer_dirty(bh); diff --git a/fs/namei.c b/fs/namei.c index 1180f9c58093..c75ea03ca147 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -447,8 +447,7 @@ static int sb_permission(struct super_block *sb, struct inode *inode, int mask) umode_t mode = inode->i_mode; /* Nobody gets write access to a read-only fs. */ - if ((sb->s_flags & MS_RDONLY) && - (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode))) + if (sb_rdonly(sb) && (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode))) return -EROFS; } return 0; diff --git a/fs/namespace.c b/fs/namespace.c index df0f7521979a..e48ad0192d81 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -275,7 +275,7 @@ int __mnt_is_readonly(struct vfsmount *mnt) { if (mnt->mnt_flags & MNT_READONLY) return 1; - if (mnt->mnt_sb->s_flags & MS_RDONLY) + if (sb_rdonly(mnt->mnt_sb)) return 1; return 0; } @@ -1029,7 +1029,7 @@ vfs_kern_mount(struct file_system_type *type, int flags, const char *name, void if (!mnt) return ERR_PTR(-ENOMEM); - if (flags & MS_KERNMOUNT) + if (flags & SB_KERNMOUNT) mnt->mnt.mnt_flags = MNT_INTERNAL; root = mount_fs(type, flags, name, data); @@ -1061,7 +1061,7 @@ vfs_submount(const struct dentry *mountpoint, struct file_system_type *type, if (mountpoint->d_sb->s_user_ns != &init_user_ns) return ERR_PTR(-EPERM); - return vfs_kern_mount(type, MS_SUBMOUNT, name, data); + return vfs_kern_mount(type, SB_SUBMOUNT, name, data); } EXPORT_SYMBOL_GPL(vfs_submount); @@ -1592,8 +1592,8 @@ static int do_umount(struct mount *mnt, int flags) if (!capable(CAP_SYS_ADMIN)) return -EPERM; down_write(&sb->s_umount); - if (!(sb->s_flags & MS_RDONLY)) - retval = do_remount_sb(sb, MS_RDONLY, NULL, 0); + if (!sb_rdonly(sb)) + retval = do_remount_sb(sb, SB_RDONLY, NULL, 0); up_write(&sb->s_umount); return retval; } @@ -2117,7 +2117,7 @@ static void unlock_mount(struct mountpoint *where) static int graft_tree(struct mount *mnt, struct mount *p, struct mountpoint *mp) { - if (mnt->mnt.mnt_sb->s_flags & MS_NOUSER) + if (mnt->mnt.mnt_sb->s_flags & SB_NOUSER) return -EINVAL; if (d_is_dir(mp->m_dentry) != @@ -2131,9 +2131,9 @@ static int graft_tree(struct mount *mnt, struct mount *p, struct mountpoint *mp) * Sanity check the flags to change_mnt_propagation. */ -static int flags_to_propagation_type(int flags) +static int flags_to_propagation_type(int ms_flags) { - int type = flags & ~(MS_REC | MS_SILENT); + int type = ms_flags & ~(MS_REC | MS_SILENT); /* Fail if any non-propagation flags are set */ if (type & ~(MS_SHARED | MS_PRIVATE | MS_SLAVE | MS_UNBINDABLE)) @@ -2147,18 +2147,18 @@ static int flags_to_propagation_type(int flags) /* * recursively change the type of the mountpoint. */ -static int do_change_type(struct path *path, int flag) +static int do_change_type(struct path *path, int ms_flags) { struct mount *m; struct mount *mnt = real_mount(path->mnt); - int recurse = flag & MS_REC; + int recurse = ms_flags & MS_REC; int type; int err = 0; if (path->dentry != path->mnt->mnt_root) return -EINVAL; - type = flags_to_propagation_type(flag); + type = flags_to_propagation_type(ms_flags); if (!type) return -EINVAL; @@ -2280,8 +2280,8 @@ static int change_mount_flags(struct vfsmount *mnt, int ms_flags) * If you've mounted a non-root directory somewhere and want to do remount * on it - tough luck. */ -static int do_remount(struct path *path, int flags, int mnt_flags, - void *data) +static int do_remount(struct path *path, int ms_flags, int sb_flags, + int mnt_flags, void *data) { int err; struct super_block *sb = path->mnt->mnt_sb; @@ -2325,12 +2325,12 @@ static int do_remount(struct path *path, int flags, int mnt_flags, return err; down_write(&sb->s_umount); - if (flags & MS_BIND) - err = change_mount_flags(path->mnt, flags); + if (ms_flags & MS_BIND) + err = change_mount_flags(path->mnt, ms_flags); else if (!capable(CAP_SYS_ADMIN)) err = -EPERM; else - err = do_remount_sb(sb, flags, data, 0); + err = do_remount_sb(sb, sb_flags, data, 0); if (!err) { lock_mount_hash(); mnt_flags |= mnt->mnt.mnt_flags & ~MNT_USER_SETTABLE_MASK; @@ -2495,7 +2495,7 @@ static bool mount_too_revealing(struct vfsmount *mnt, int *new_mnt_flags); * create a new mount for userspace and request it to be added into the * namespace's tree */ -static int do_new_mount(struct path *path, const char *fstype, int flags, +static int do_new_mount(struct path *path, const char *fstype, int sb_flags, int mnt_flags, const char *name, void *data) { struct file_system_type *type; @@ -2509,7 +2509,7 @@ static int do_new_mount(struct path *path, const char *fstype, int flags, if (!type) return -ENODEV; - mnt = vfs_kern_mount(type, flags, name, data); + mnt = vfs_kern_mount(type, sb_flags, name, data); if (!IS_ERR(mnt) && (type->fs_flags & FS_HAS_SUBTYPE) && !mnt->mnt_sb->s_subtype) mnt = fs_set_subtype(mnt, fstype); @@ -2764,8 +2764,8 @@ long do_mount(const char *dev_name, const char __user *dir_name, const char *type_page, unsigned long flags, void *data_page) { struct path path; + unsigned int mnt_flags = 0, sb_flags; int retval = 0; - int mnt_flags = 0; /* Discard magic */ if ((flags & MS_MGC_MSK) == MS_MGC_VAL) @@ -2775,6 +2775,9 @@ long do_mount(const char *dev_name, const char __user *dir_name, if (data_page) ((char *)data_page)[PAGE_SIZE - 1] = 0; + if (flags & MS_NOUSER) + return -EINVAL; + /* ... and get the mountpoint */ retval = user_path(dir_name, &path); if (retval) @@ -2784,7 +2787,7 @@ long do_mount(const char *dev_name, const char __user *dir_name, type_page, flags, data_page); if (!retval && !may_mount()) retval = -EPERM; - if (!retval && (flags & MS_MANDLOCK) && !may_mandlock()) + if (!retval && (flags & SB_MANDLOCK) && !may_mandlock()) retval = -EPERM; if (retval) goto dput_out; @@ -2806,7 +2809,7 @@ long do_mount(const char *dev_name, const char __user *dir_name, mnt_flags |= MNT_NODIRATIME; if (flags & MS_STRICTATIME) mnt_flags &= ~(MNT_RELATIME | MNT_NOATIME); - if (flags & MS_RDONLY) + if (flags & SB_RDONLY) mnt_flags |= MNT_READONLY; /* The default atime for remount is preservation */ @@ -2817,12 +2820,15 @@ long do_mount(const char *dev_name, const char __user *dir_name, mnt_flags |= path.mnt->mnt_flags & MNT_ATIME_MASK; } - flags &= ~(MS_NOSUID | MS_NOEXEC | MS_NODEV | MS_ACTIVE | MS_BORN | - MS_NOATIME | MS_NODIRATIME | MS_RELATIME| MS_KERNMOUNT | - MS_STRICTATIME | MS_NOREMOTELOCK | MS_SUBMOUNT); + sb_flags = flags & (SB_RDONLY | + SB_SYNCHRONOUS | + SB_MANDLOCK | + SB_DIRSYNC | + SB_SILENT | + SB_POSIXACL); if (flags & MS_REMOUNT) - retval = do_remount(&path, flags & ~MS_REMOUNT, mnt_flags, + retval = do_remount(&path, flags, sb_flags, mnt_flags, data_page); else if (flags & MS_BIND) retval = do_loopback(&path, dev_name, flags & MS_REC); @@ -2831,7 +2837,7 @@ long do_mount(const char *dev_name, const char __user *dir_name, else if (flags & MS_MOVE) retval = do_move_mount(&path, dev_name); else - retval = do_new_mount(&path, type_page, flags, mnt_flags, + retval = do_new_mount(&path, type_page, sb_flags, mnt_flags, dev_name, data_page); dput_out: path_put(&path); @@ -3281,7 +3287,7 @@ void put_mnt_ns(struct mnt_namespace *ns) struct vfsmount *kern_mount_data(struct file_system_type *type, void *data) { struct vfsmount *mnt; - mnt = vfs_kern_mount(type, MS_KERNMOUNT, type->name, data); + mnt = vfs_kern_mount(type, SB_KERNMOUNT, type->name, data); if (!IS_ERR(mnt)) { /* * it is a longterm mount, don't release mnt until @@ -3358,7 +3364,7 @@ static bool mnt_already_visible(struct mnt_namespace *ns, struct vfsmount *new, mnt_flags = mnt->mnt.mnt_flags; /* Don't miss readonly hidden in the superblock flags */ - if (mnt->mnt.mnt_sb->s_flags & MS_RDONLY) + if (sb_rdonly(mnt->mnt.mnt_sb)) mnt_flags |= MNT_LOCK_READONLY; /* Verify the mount flags are equal to or more permissive diff --git a/fs/nfs/super.c b/fs/nfs/super.c index 6b179af59b92..c9d24bae3025 100644 --- a/fs/nfs/super.c +++ b/fs/nfs/super.c @@ -812,7 +812,7 @@ int nfs_show_stats(struct seq_file *m, struct dentry *root) * Display all mount option settings */ seq_printf(m, "\n\topts:\t"); - seq_puts(m, root->d_sb->s_flags & MS_RDONLY ? "ro" : "rw"); + seq_puts(m, sb_rdonly(root->d_sb) ? "ro" : "rw"); seq_puts(m, root->d_sb->s_flags & MS_SYNCHRONOUS ? ",sync" : ""); seq_puts(m, root->d_sb->s_flags & MS_NOATIME ? ",noatime" : ""); seq_puts(m, root->d_sb->s_flags & MS_NODIRATIME ? ",nodiratime" : ""); diff --git a/fs/nilfs2/inode.c b/fs/nilfs2/inode.c index 7ffe71a8dfb9..6a612d832e7d 100644 --- a/fs/nilfs2/inode.c +++ b/fs/nilfs2/inode.c @@ -174,7 +174,7 @@ static int nilfs_writepages(struct address_space *mapping, struct inode *inode = mapping->host; int err = 0; - if (inode->i_sb->s_flags & MS_RDONLY) { + if (sb_rdonly(inode->i_sb)) { nilfs_clear_dirty_pages(mapping, false); return -EROFS; } @@ -191,7 +191,7 @@ static int nilfs_writepage(struct page *page, struct writeback_control *wbc) struct inode *inode = page->mapping->host; int err; - if (inode->i_sb->s_flags & MS_RDONLY) { + if (sb_rdonly(inode->i_sb)) { /* * It means that filesystem was remounted in read-only * mode because of error or metadata corruption. But we diff --git a/fs/nilfs2/mdt.c b/fs/nilfs2/mdt.c index 98835ed6bef4..c6bc1033e7d2 100644 --- a/fs/nilfs2/mdt.c +++ b/fs/nilfs2/mdt.c @@ -413,7 +413,7 @@ nilfs_mdt_write_page(struct page *page, struct writeback_control *wbc) struct super_block *sb; int err = 0; - if (inode && (inode->i_sb->s_flags & MS_RDONLY)) { + if (inode && sb_rdonly(inode->i_sb)) { /* * It means that filesystem was remounted in read-only * mode because of error or metadata corruption. But we diff --git a/fs/nilfs2/super.c b/fs/nilfs2/super.c index 926682981d61..4fc018dfcfae 100644 --- a/fs/nilfs2/super.c +++ b/fs/nilfs2/super.c @@ -136,7 +136,7 @@ void __nilfs_error(struct super_block *sb, const char *function, va_end(args); - if (!(sb->s_flags & MS_RDONLY)) { + if (!sb_rdonly(sb)) { nilfs_set_error(sb); if (nilfs_test_opt(nilfs, ERRORS_RO)) { @@ -478,7 +478,7 @@ static void nilfs_put_super(struct super_block *sb) nilfs_detach_log_writer(sb); - if (!(sb->s_flags & MS_RDONLY)) { + if (!sb_rdonly(sb)) { down_write(&nilfs->ns_sem); nilfs_cleanup_super(sb); up_write(&nilfs->ns_sem); @@ -578,7 +578,7 @@ static int nilfs_freeze(struct super_block *sb) struct the_nilfs *nilfs = sb->s_fs_info; int err; - if (sb->s_flags & MS_RDONLY) + if (sb_rdonly(sb)) return 0; /* Mark super block clean */ @@ -592,7 +592,7 @@ static int nilfs_unfreeze(struct super_block *sb) { struct the_nilfs *nilfs = sb->s_fs_info; - if (sb->s_flags & MS_RDONLY) + if (sb_rdonly(sb)) return 0; down_write(&nilfs->ns_sem); @@ -898,7 +898,7 @@ int nilfs_check_feature_compatibility(struct super_block *sb, } features = le64_to_cpu(sbp->s_feature_compat_ro) & ~NILFS_FEATURE_COMPAT_RO_SUPP; - if (!(sb->s_flags & MS_RDONLY) && features) { + if (!sb_rdonly(sb) && features) { nilfs_msg(sb, KERN_ERR, "couldn't mount RDWR because of unsupported optional features (%llx)", (unsigned long long)features); @@ -1083,7 +1083,7 @@ nilfs_fill_super(struct super_block *sb, void *data, int silent) goto failed_unload; } - if (!(sb->s_flags & MS_RDONLY)) { + if (!sb_rdonly(sb)) { err = nilfs_attach_log_writer(sb, fsroot); if (err) goto failed_checkpoint; @@ -1095,7 +1095,7 @@ nilfs_fill_super(struct super_block *sb, void *data, int silent) nilfs_put_root(fsroot); - if (!(sb->s_flags & MS_RDONLY)) { + if (!sb_rdonly(sb)) { down_write(&nilfs->ns_sem); nilfs_setup_super(sb, true); up_write(&nilfs->ns_sem); @@ -1144,7 +1144,7 @@ static int nilfs_remount(struct super_block *sb, int *flags, char *data) goto restore_opts; } - if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY)) + if ((bool)(*flags & MS_RDONLY) == sb_rdonly(sb)) goto out; if (*flags & MS_RDONLY) { /* Shutting down log writer */ @@ -1338,8 +1338,7 @@ nilfs_mount(struct file_system_type *fs_type, int flags, if ((flags ^ s->s_flags) & MS_RDONLY) { nilfs_msg(s, KERN_ERR, "the device already has a %s mount.", - (s->s_flags & MS_RDONLY) ? - "read-only" : "read/write"); + sb_rdonly(s) ? "read-only" : "read/write"); err = -EBUSY; goto failed_super; } diff --git a/fs/ntfs/super.c b/fs/ntfs/super.c index ecb49870a680..3f70f041dbe9 100644 --- a/fs/ntfs/super.c +++ b/fs/ntfs/super.c @@ -487,7 +487,7 @@ static int ntfs_remount(struct super_block *sb, int *flags, char *opt) * When remounting read-only, mark the volume clean if no volume errors * have occurred. */ - if ((sb->s_flags & MS_RDONLY) && !(*flags & MS_RDONLY)) { + if (sb_rdonly(sb) && !(*flags & MS_RDONLY)) { static const char *es = ". Cannot remount read-write."; /* Remounting read-write. */ @@ -548,7 +548,7 @@ static int ntfs_remount(struct super_block *sb, int *flags, char *opt) NVolSetErrors(vol); return -EROFS; } - } else if (!(sb->s_flags & MS_RDONLY) && (*flags & MS_RDONLY)) { + } else if (!sb_rdonly(sb) && (*flags & MS_RDONLY)) { /* Remounting read-only. */ if (!NVolErrors(vol)) { if (ntfs_clear_volume_flags(vol, VOLUME_IS_DIRTY)) @@ -732,7 +732,7 @@ hotfix_primary_boot_sector: * on a large sector device contains the whole boot loader or * just the first 512 bytes). */ - if (!(sb->s_flags & MS_RDONLY)) { + if (!sb_rdonly(sb)) { ntfs_warning(sb, "Hot-fix: Recovering invalid primary " "boot sector from backup copy."); memcpy(bh_primary->b_data, bh_backup->b_data, @@ -1789,7 +1789,7 @@ static bool load_system_files(ntfs_volume *vol) static const char *es3 = ". Run ntfsfix and/or chkdsk."; /* If a read-write mount, convert it to a read-only mount. */ - if (!(sb->s_flags & MS_RDONLY)) { + if (!sb_rdonly(sb)) { if (!(vol->on_errors & (ON_ERRORS_REMOUNT_RO | ON_ERRORS_CONTINUE))) { ntfs_error(sb, "%s and neither on_errors=" @@ -1928,7 +1928,7 @@ get_ctx_vol_failed: (unsigned)le16_to_cpu(vol->vol_flags)); } /* If a read-write mount, convert it to a read-only mount. */ - if (!(sb->s_flags & MS_RDONLY)) { + if (!sb_rdonly(sb)) { if (!(vol->on_errors & (ON_ERRORS_REMOUNT_RO | ON_ERRORS_CONTINUE))) { ntfs_error(sb, "%s and neither on_errors=" @@ -1961,7 +1961,7 @@ get_ctx_vol_failed: es1 = !vol->logfile_ino ? es1a : es1b; /* If a read-write mount, convert it to a read-only mount. */ - if (!(sb->s_flags & MS_RDONLY)) { + if (!sb_rdonly(sb)) { if (!(vol->on_errors & (ON_ERRORS_REMOUNT_RO | ON_ERRORS_CONTINUE))) { ntfs_error(sb, "%s and neither on_errors=" @@ -2010,7 +2010,7 @@ get_ctx_vol_failed: es1 = err < 0 ? es1a : es1b; /* If a read-write mount, convert it to a read-only mount. */ - if (!(sb->s_flags & MS_RDONLY)) { + if (!sb_rdonly(sb)) { if (!(vol->on_errors & (ON_ERRORS_REMOUNT_RO | ON_ERRORS_CONTINUE))) { ntfs_error(sb, "%s and neither on_errors=" @@ -2028,8 +2028,7 @@ get_ctx_vol_failed: NVolSetErrors(vol); } /* If (still) a read-write mount, mark the volume dirty. */ - if (!(sb->s_flags & MS_RDONLY) && - ntfs_set_volume_flags(vol, VOLUME_IS_DIRTY)) { + if (!sb_rdonly(sb) && ntfs_set_volume_flags(vol, VOLUME_IS_DIRTY)) { static const char *es1 = "Failed to set dirty bit in volume " "information flags"; static const char *es2 = ". Run chkdsk."; @@ -2075,8 +2074,7 @@ get_ctx_vol_failed: } #endif /* If (still) a read-write mount, empty the logfile. */ - if (!(sb->s_flags & MS_RDONLY) && - !ntfs_empty_logfile(vol->logfile_ino)) { + if (!sb_rdonly(sb) && !ntfs_empty_logfile(vol->logfile_ino)) { static const char *es1 = "Failed to empty $LogFile"; static const char *es2 = ". Mount in Windows."; @@ -2121,7 +2119,7 @@ get_ctx_vol_failed: static const char *es2 = ". Run chkdsk."; /* If a read-write mount, convert it to a read-only mount. */ - if (!(sb->s_flags & MS_RDONLY)) { + if (!sb_rdonly(sb)) { if (!(vol->on_errors & (ON_ERRORS_REMOUNT_RO | ON_ERRORS_CONTINUE))) { ntfs_error(sb, "%s and neither on_errors=" @@ -2139,8 +2137,7 @@ get_ctx_vol_failed: NVolSetErrors(vol); } /* If (still) a read-write mount, mark the quotas out of date. */ - if (!(sb->s_flags & MS_RDONLY) && - !ntfs_mark_quotas_out_of_date(vol)) { + if (!sb_rdonly(sb) && !ntfs_mark_quotas_out_of_date(vol)) { static const char *es1 = "Failed to mark quotas out of date"; static const char *es2 = ". Run chkdsk."; @@ -2165,7 +2162,7 @@ get_ctx_vol_failed: static const char *es2 = ". Run chkdsk."; /* If a read-write mount, convert it to a read-only mount. */ - if (!(sb->s_flags & MS_RDONLY)) { + if (!sb_rdonly(sb)) { if (!(vol->on_errors & (ON_ERRORS_REMOUNT_RO | ON_ERRORS_CONTINUE))) { ntfs_error(sb, "%s and neither on_errors=" @@ -2183,7 +2180,7 @@ get_ctx_vol_failed: NVolSetErrors(vol); } /* If (still) a read-write mount, stamp the transaction log. */ - if (!(sb->s_flags & MS_RDONLY) && !ntfs_stamp_usnjrnl(vol)) { + if (!sb_rdonly(sb) && !ntfs_stamp_usnjrnl(vol)) { static const char *es1 = "Failed to stamp transaction log " "($UsnJrnl)"; static const char *es2 = ". Run chkdsk."; @@ -2314,7 +2311,7 @@ static void ntfs_put_super(struct super_block *sb) * If a read-write mount and no volume errors have occurred, mark the * volume clean. Also, re-commit all affected inodes. */ - if (!(sb->s_flags & MS_RDONLY)) { + if (!sb_rdonly(sb)) { if (!NVolErrors(vol)) { if (ntfs_clear_volume_flags(vol, VOLUME_IS_DIRTY)) ntfs_warning(sb, "Failed to clear dirty bit " diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c index 3f936be379a9..80733496b22a 100644 --- a/fs/ocfs2/super.c +++ b/fs/ocfs2/super.c @@ -675,7 +675,7 @@ static int ocfs2_remount(struct super_block *sb, int *flags, char *data) } /* We're going to/from readonly mode. */ - if ((*flags & MS_RDONLY) != (sb->s_flags & MS_RDONLY)) { + if ((bool)(*flags & MS_RDONLY) != sb_rdonly(sb)) { /* Disable quota accounting before remounting RO */ if (*flags & MS_RDONLY) { ret = ocfs2_susp_quotas(osb, 0); @@ -1063,7 +1063,7 @@ static int ocfs2_fill_super(struct super_block *sb, void *data, int silent) /* Hard readonly mode only if: bdev_read_only, MS_RDONLY, * heartbeat=none */ if (bdev_read_only(sb->s_bdev)) { - if (!(sb->s_flags & MS_RDONLY)) { + if (!sb_rdonly(sb)) { status = -EACCES; mlog(ML_ERROR, "Readonly device detected but readonly " "mount was not specified.\n"); @@ -1098,7 +1098,7 @@ static int ocfs2_fill_super(struct super_block *sb, void *data, int silent) } if (!ocfs2_is_hard_readonly(osb)) { - if (sb->s_flags & MS_RDONLY) + if (sb_rdonly(sb)) ocfs2_set_ro_flag(osb, 0); } @@ -1179,7 +1179,7 @@ static int ocfs2_fill_super(struct super_block *sb, void *data, int silent) /* Now we can initialize quotas because we can afford to wait * for cluster locks recovery now. That also means that truncation * log recovery can happen but that waits for proper quota setup */ - if (!(sb->s_flags & MS_RDONLY)) { + if (!sb_rdonly(sb)) { status = ocfs2_enable_quotas(osb); if (status < 0) { /* We have to err-out specially here because @@ -2180,8 +2180,7 @@ static int ocfs2_initialize_super(struct super_block *sb, status = -EINVAL; goto bail; } - if (!(osb->sb->s_flags & MS_RDONLY) && - (i = OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, ~OCFS2_FEATURE_RO_COMPAT_SUPP))) { + if (!sb_rdonly(osb->sb) && (i = OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, ~OCFS2_FEATURE_RO_COMPAT_SUPP))) { mlog(ML_ERROR, "couldn't mount RDWR because of " "unsupported optional features (%x).\n", i); status = -EINVAL; @@ -2567,9 +2566,7 @@ static int ocfs2_handle_error(struct super_block *sb) rv = -EIO; } else { /* default option */ rv = -EROFS; - if (sb->s_flags & MS_RDONLY && - (ocfs2_is_soft_readonly(osb) || - ocfs2_is_hard_readonly(osb))) + if (sb_rdonly(sb) && (ocfs2_is_soft_readonly(osb) || ocfs2_is_hard_readonly(osb))) return rv; pr_crit("OCFS2: File system is now read-only.\n"); diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c index cd49c0298ddf..fd5ea4facc62 100644 --- a/fs/overlayfs/super.c +++ b/fs/overlayfs/super.c @@ -870,7 +870,7 @@ static int ovl_fill_super(struct super_block *sb, void *data, int silent) goto out_free_config; /* Upper fs should not be r/o */ - if (upperpath.mnt->mnt_sb->s_flags & MS_RDONLY) { + if (sb_rdonly(upperpath.mnt->mnt_sb)) { pr_err("overlayfs: upper fs is r/o, try multi-lower layers mount\n"); err = -EINVAL; goto out_put_upperpath; diff --git a/fs/proc_namespace.c b/fs/proc_namespace.c index b5713fefb4c1..99dff222fe67 100644 --- a/fs/proc_namespace.c +++ b/fs/proc_namespace.c @@ -178,7 +178,7 @@ static int show_mountinfo(struct seq_file *m, struct vfsmount *mnt) } else { mangle(m, r->mnt_devname ? r->mnt_devname : "none"); } - seq_puts(m, sb->s_flags & MS_RDONLY ? " ro" : " rw"); + seq_puts(m, sb_rdonly(sb) ? " ro" : " rw"); err = show_sb_opts(m, sb); if (err) goto out; diff --git a/fs/quota/quota.c b/fs/quota/quota.c index 07e08c7d05ca..a9c5dfe6b83e 100644 --- a/fs/quota/quota.c +++ b/fs/quota/quota.c @@ -753,7 +753,7 @@ static int do_quotactl(struct super_block *sb, int type, int cmd, qid_t id, case Q_XGETNEXTQUOTA: return quota_getnextxquota(sb, type, id, addr); case Q_XQUOTASYNC: - if (sb->s_flags & MS_RDONLY) + if (sb_rdonly(sb)) return -EROFS; /* XFS quotas are fully coherent now, making this call a noop */ return 0; diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c index 873fc04e9403..11a48affa882 100644 --- a/fs/reiserfs/inode.c +++ b/fs/reiserfs/inode.c @@ -1776,7 +1776,7 @@ int reiserfs_write_inode(struct inode *inode, struct writeback_control *wbc) struct reiserfs_transaction_handle th; int jbegin_count = 1; - if (inode->i_sb->s_flags & MS_RDONLY) + if (sb_rdonly(inode->i_sb)) return -EROFS; /* * memory pressure can sometimes initiate write_inode calls with diff --git a/fs/reiserfs/journal.c b/fs/reiserfs/journal.c index 0c882a0e2a6e..f59c667df15b 100644 --- a/fs/reiserfs/journal.c +++ b/fs/reiserfs/journal.c @@ -1918,7 +1918,7 @@ static int do_journal_release(struct reiserfs_transaction_handle *th, * we only want to flush out transactions if we were * called with error == 0 */ - if (!error && !(sb->s_flags & MS_RDONLY)) { + if (!error && !sb_rdonly(sb)) { /* end the current trans */ BUG_ON(!th->t_trans_id); do_journal_end(th, FLUSH_ALL); diff --git a/fs/reiserfs/prints.c b/fs/reiserfs/prints.c index 4f3f928076f3..64f49cafbc5b 100644 --- a/fs/reiserfs/prints.c +++ b/fs/reiserfs/prints.c @@ -386,7 +386,7 @@ void __reiserfs_error(struct super_block *sb, const char *id, printk(KERN_CRIT "REISERFS error (device %s): %s: %s\n", sb->s_id, function, error_buf); - if (sb->s_flags & MS_RDONLY) + if (sb_rdonly(sb)) return; reiserfs_info(sb, "Remounting filesystem read-only\n"); diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c index 306e4e9d172d..5464ec517702 100644 --- a/fs/reiserfs/super.c +++ b/fs/reiserfs/super.c @@ -121,7 +121,7 @@ void reiserfs_schedule_old_flush(struct super_block *s) * Avoid scheduling flush when sb is being shut down. It can race * with journal shutdown and free still queued delayed work. */ - if (s->s_flags & MS_RDONLY || !(s->s_flags & MS_ACTIVE)) + if (sb_rdonly(s) || !(s->s_flags & MS_ACTIVE)) return; spin_lock(&sbi->old_work_lock); @@ -151,7 +151,7 @@ static int reiserfs_freeze(struct super_block *s) reiserfs_cancel_old_flush(s); reiserfs_write_lock(s); - if (!(s->s_flags & MS_RDONLY)) { + if (!sb_rdonly(s)) { int err = journal_begin(&th, s, 1); if (err) { reiserfs_block_writes(&th); @@ -599,7 +599,7 @@ static void reiserfs_put_super(struct super_block *s) * change file system state to current state if it was mounted * with read-write permissions */ - if (!(s->s_flags & MS_RDONLY)) { + if (!sb_rdonly(s)) { if (!journal_begin(&th, s, 10)) { reiserfs_prepare_for_journal(s, SB_BUFFER_WITH_SB(s), 1); @@ -700,7 +700,7 @@ static void reiserfs_dirty_inode(struct inode *inode, int flags) int err = 0; - if (inode->i_sb->s_flags & MS_RDONLY) { + if (sb_rdonly(inode->i_sb)) { reiserfs_warning(inode->i_sb, "clm-6006", "writing inode %lu on readonly FS", inode->i_ino); @@ -1525,7 +1525,7 @@ static int reiserfs_remount(struct super_block *s, int *mount_flags, char *arg) reiserfs_write_unlock(s); reiserfs_xattr_init(s, *mount_flags); /* remount read-only */ - if (s->s_flags & MS_RDONLY) + if (sb_rdonly(s)) /* it is read-only already */ goto out_ok_unlocked; @@ -1551,7 +1551,7 @@ static int reiserfs_remount(struct super_block *s, int *mount_flags, char *arg) journal_mark_dirty(&th, SB_BUFFER_WITH_SB(s)); } else { /* remount read-write */ - if (!(s->s_flags & MS_RDONLY)) { + if (!sb_rdonly(s)) { reiserfs_write_unlock(s); reiserfs_xattr_init(s, *mount_flags); goto out_ok_unlocked; /* We are read-write already */ @@ -1855,7 +1855,7 @@ static int what_hash(struct super_block *s) * the super */ if (code != UNSET_HASH && - !(s->s_flags & MS_RDONLY) && + !sb_rdonly(s) && code != sb_hash_function_code(SB_DISK_SUPER_BLOCK(s))) { set_sb_hash_function_code(SB_DISK_SUPER_BLOCK(s), code); } @@ -2052,7 +2052,7 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent) if (replay_only(s)) goto error_unlocked; - if (bdev_read_only(s->s_bdev) && !(s->s_flags & MS_RDONLY)) { + if (bdev_read_only(s->s_bdev) && !sb_rdonly(s)) { SWARN(silent, s, "clm-7000", "Detected readonly device, marking FS readonly"); s->s_flags |= MS_RDONLY; @@ -2101,7 +2101,7 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent) else set_bit(REISERFS_3_6, &sbi->s_properties); - if (!(s->s_flags & MS_RDONLY)) { + if (!sb_rdonly(s)) { errval = journal_begin(&th, s, 1); if (errval) { diff --git a/fs/super.c b/fs/super.c index 221cfa1f4e92..166c4ee0d0ed 100644 --- a/fs/super.c +++ b/fs/super.c @@ -360,7 +360,7 @@ static int grab_super(struct super_block *s) __releases(sb_lock) s->s_count++; spin_unlock(&sb_lock); down_write(&s->s_umount); - if ((s->s_flags & MS_BORN) && atomic_inc_not_zero(&s->s_active)) { + if ((s->s_flags & SB_BORN) && atomic_inc_not_zero(&s->s_active)) { put_super(s); return 1; } @@ -390,7 +390,7 @@ bool trylock_super(struct super_block *sb) { if (down_read_trylock(&sb->s_umount)) { if (!hlist_unhashed(&sb->s_instances) && - sb->s_root && (sb->s_flags & MS_BORN)) + sb->s_root && (sb->s_flags & SB_BORN)) return true; up_read(&sb->s_umount); } @@ -419,7 +419,7 @@ void generic_shutdown_super(struct super_block *sb) if (sb->s_root) { shrink_dcache_for_umount(sb); sync_filesystem(sb); - sb->s_flags &= ~MS_ACTIVE; + sb->s_flags &= ~SB_ACTIVE; fsnotify_unmount_inodes(sb); cgroup_writeback_umount(); @@ -472,7 +472,7 @@ struct super_block *sget_userns(struct file_system_type *type, struct super_block *old; int err; - if (!(flags & (MS_KERNMOUNT|MS_SUBMOUNT)) && + if (!(flags & (SB_KERNMOUNT|SB_SUBMOUNT)) && !(type->fs_flags & FS_USERNS_MOUNT) && !capable(CAP_SYS_ADMIN)) return ERR_PTR(-EPERM); @@ -502,7 +502,7 @@ retry: } if (!s) { spin_unlock(&sb_lock); - s = alloc_super(type, (flags & ~MS_SUBMOUNT), user_ns); + s = alloc_super(type, (flags & ~SB_SUBMOUNT), user_ns); if (!s) return ERR_PTR(-ENOMEM); goto retry; @@ -547,11 +547,11 @@ struct super_block *sget(struct file_system_type *type, * mount through to here so always use &init_user_ns * until that changes. */ - if (flags & MS_SUBMOUNT) + if (flags & SB_SUBMOUNT) user_ns = &init_user_ns; /* Ensure the requestor has permissions over the target filesystem */ - if (!(flags & (MS_KERNMOUNT|MS_SUBMOUNT)) && !ns_capable(user_ns, CAP_SYS_ADMIN)) + if (!(flags & (SB_KERNMOUNT|SB_SUBMOUNT)) && !ns_capable(user_ns, CAP_SYS_ADMIN)) return ERR_PTR(-EPERM); return sget_userns(type, test, set, flags, user_ns, data); @@ -594,7 +594,7 @@ void iterate_supers(void (*f)(struct super_block *, void *), void *arg) spin_unlock(&sb_lock); down_read(&sb->s_umount); - if (sb->s_root && (sb->s_flags & MS_BORN)) + if (sb->s_root && (sb->s_flags & SB_BORN)) f(sb, arg); up_read(&sb->s_umount); @@ -628,7 +628,7 @@ void iterate_supers_type(struct file_system_type *type, spin_unlock(&sb_lock); down_read(&sb->s_umount); - if (sb->s_root && (sb->s_flags & MS_BORN)) + if (sb->s_root && (sb->s_flags & SB_BORN)) f(sb, arg); up_read(&sb->s_umount); @@ -664,7 +664,7 @@ rescan: else down_write(&sb->s_umount); /* still alive? */ - if (sb->s_root && (sb->s_flags & MS_BORN)) + if (sb->s_root && (sb->s_flags & SB_BORN)) return sb; if (!excl) up_read(&sb->s_umount); @@ -785,7 +785,7 @@ rescan: spin_unlock(&sb_lock); down_read(&sb->s_umount); /* still alive? */ - if (sb->s_root && (sb->s_flags & MS_BORN)) + if (sb->s_root && (sb->s_flags & SB_BORN)) return sb; up_read(&sb->s_umount); /* nope, got unmounted */ @@ -801,13 +801,13 @@ rescan: /** * do_remount_sb - asks filesystem to change mount options. * @sb: superblock in question - * @flags: numeric part of options + * @sb_flags: revised superblock flags * @data: the rest of options * @force: whether or not to force the change * * Alters the mount options of a mounted file system. */ -int do_remount_sb(struct super_block *sb, int flags, void *data, int force) +int do_remount_sb(struct super_block *sb, int sb_flags, void *data, int force) { int retval; int remount_ro; @@ -816,11 +816,11 @@ int do_remount_sb(struct super_block *sb, int flags, void *data, int force) return -EBUSY; #ifdef CONFIG_BLOCK - if (!(flags & MS_RDONLY) && bdev_read_only(sb->s_bdev)) + if (!(sb_flags & SB_RDONLY) && bdev_read_only(sb->s_bdev)) return -EACCES; #endif - remount_ro = (flags & MS_RDONLY) && !(sb->s_flags & MS_RDONLY); + remount_ro = (sb_flags & SB_RDONLY) && !sb_rdonly(sb); if (remount_ro) { if (!hlist_empty(&sb->s_pins)) { @@ -831,7 +831,7 @@ int do_remount_sb(struct super_block *sb, int flags, void *data, int force) return 0; if (sb->s_writers.frozen != SB_UNFROZEN) return -EBUSY; - remount_ro = (flags & MS_RDONLY) && !(sb->s_flags & MS_RDONLY); + remount_ro = (sb_flags & SB_RDONLY) && !sb_rdonly(sb); } } shrink_dcache_sb(sb); @@ -850,7 +850,7 @@ int do_remount_sb(struct super_block *sb, int flags, void *data, int force) } if (sb->s_op->remount_fs) { - retval = sb->s_op->remount_fs(sb, &flags, data); + retval = sb->s_op->remount_fs(sb, &sb_flags, data); if (retval) { if (!force) goto cancel_readonly; @@ -859,7 +859,7 @@ int do_remount_sb(struct super_block *sb, int flags, void *data, int force) sb->s_type->name, retval); } } - sb->s_flags = (sb->s_flags & ~MS_RMT_MASK) | (flags & MS_RMT_MASK); + sb->s_flags = (sb->s_flags & ~MS_RMT_MASK) | (sb_flags & MS_RMT_MASK); /* Needs to be ordered wrt mnt_is_readonly() */ smp_wmb(); sb->s_readonly_remount = 0; @@ -892,12 +892,12 @@ static void do_emergency_remount(struct work_struct *work) sb->s_count++; spin_unlock(&sb_lock); down_write(&sb->s_umount); - if (sb->s_root && sb->s_bdev && (sb->s_flags & MS_BORN) && - !(sb->s_flags & MS_RDONLY)) { + if (sb->s_root && sb->s_bdev && (sb->s_flags & SB_BORN) && + !sb_rdonly(sb)) { /* * What lock protects sb->s_flags?? */ - do_remount_sb(sb, MS_RDONLY, NULL, 1); + do_remount_sb(sb, SB_RDONLY, NULL, 1); } up_write(&sb->s_umount); spin_lock(&sb_lock); @@ -1023,7 +1023,7 @@ struct dentry *mount_ns(struct file_system_type *fs_type, /* Don't allow mounting unless the caller has CAP_SYS_ADMIN * over the namespace. */ - if (!(flags & MS_KERNMOUNT) && !ns_capable(user_ns, CAP_SYS_ADMIN)) + if (!(flags & SB_KERNMOUNT) && !ns_capable(user_ns, CAP_SYS_ADMIN)) return ERR_PTR(-EPERM); sb = sget_userns(fs_type, ns_test_super, ns_set_super, flags, @@ -1033,13 +1033,13 @@ struct dentry *mount_ns(struct file_system_type *fs_type, if (!sb->s_root) { int err; - err = fill_super(sb, data, flags & MS_SILENT ? 1 : 0); + err = fill_super(sb, data, flags & SB_SILENT ? 1 : 0); if (err) { deactivate_locked_super(sb); return ERR_PTR(err); } - sb->s_flags |= MS_ACTIVE; + sb->s_flags |= SB_ACTIVE; } return dget(sb->s_root); @@ -1071,7 +1071,7 @@ struct dentry *mount_bdev(struct file_system_type *fs_type, fmode_t mode = FMODE_READ | FMODE_EXCL; int error = 0; - if (!(flags & MS_RDONLY)) + if (!(flags & SB_RDONLY)) mode |= FMODE_WRITE; bdev = blkdev_get_by_path(dev_name, mode, fs_type); @@ -1089,14 +1089,14 @@ struct dentry *mount_bdev(struct file_system_type *fs_type, error = -EBUSY; goto error_bdev; } - s = sget(fs_type, test_bdev_super, set_bdev_super, flags | MS_NOSEC, + s = sget(fs_type, test_bdev_super, set_bdev_super, flags | SB_NOSEC, bdev); mutex_unlock(&bdev->bd_fsfreeze_mutex); if (IS_ERR(s)) goto error_s; if (s->s_root) { - if ((flags ^ s->s_flags) & MS_RDONLY) { + if ((flags ^ s->s_flags) & SB_RDONLY) { deactivate_locked_super(s); error = -EBUSY; goto error_bdev; @@ -1116,13 +1116,13 @@ struct dentry *mount_bdev(struct file_system_type *fs_type, s->s_mode = mode; snprintf(s->s_id, sizeof(s->s_id), "%pg", bdev); sb_set_blocksize(s, block_size(bdev)); - error = fill_super(s, data, flags & MS_SILENT ? 1 : 0); + error = fill_super(s, data, flags & SB_SILENT ? 1 : 0); if (error) { deactivate_locked_super(s); goto error; } - s->s_flags |= MS_ACTIVE; + s->s_flags |= SB_ACTIVE; bdev->bd_super = s; } @@ -1162,12 +1162,12 @@ struct dentry *mount_nodev(struct file_system_type *fs_type, if (IS_ERR(s)) return ERR_CAST(s); - error = fill_super(s, data, flags & MS_SILENT ? 1 : 0); + error = fill_super(s, data, flags & SB_SILENT ? 1 : 0); if (error) { deactivate_locked_super(s); return ERR_PTR(error); } - s->s_flags |= MS_ACTIVE; + s->s_flags |= SB_ACTIVE; return dget(s->s_root); } EXPORT_SYMBOL(mount_nodev); @@ -1188,12 +1188,12 @@ struct dentry *mount_single(struct file_system_type *fs_type, if (IS_ERR(s)) return ERR_CAST(s); if (!s->s_root) { - error = fill_super(s, data, flags & MS_SILENT ? 1 : 0); + error = fill_super(s, data, flags & SB_SILENT ? 1 : 0); if (error) { deactivate_locked_super(s); return ERR_PTR(error); } - s->s_flags |= MS_ACTIVE; + s->s_flags |= SB_ACTIVE; } else { do_remount_sb(s, flags, data, 0); } @@ -1227,7 +1227,7 @@ mount_fs(struct file_system_type *type, int flags, const char *name, void *data) sb = root->d_sb; BUG_ON(!sb); WARN_ON(!sb->s_bdi); - sb->s_flags |= MS_BORN; + sb->s_flags |= SB_BORN; error = security_sb_kern_mount(sb, flags, secdata); if (error) @@ -1434,12 +1434,12 @@ int freeze_super(struct super_block *sb) return -EBUSY; } - if (!(sb->s_flags & MS_BORN)) { + if (!(sb->s_flags & SB_BORN)) { up_write(&sb->s_umount); return 0; /* sic - it's "nothing to do" */ } - if (sb->s_flags & MS_RDONLY) { + if (sb_rdonly(sb)) { /* Nothing to do really... */ sb->s_writers.frozen = SB_FREEZE_COMPLETE; up_write(&sb->s_umount); @@ -1502,7 +1502,7 @@ int thaw_super(struct super_block *sb) return -EINVAL; } - if (sb->s_flags & MS_RDONLY) { + if (sb_rdonly(sb)) { sb->s_writers.frozen = SB_UNFROZEN; goto out; } diff --git a/fs/sync.c b/fs/sync.c index 2e3fd7d94d2d..a576aa2e6b09 100644 --- a/fs/sync.c +++ b/fs/sync.c @@ -57,7 +57,7 @@ int sync_filesystem(struct super_block *sb) /* * No point in syncing out anything if the filesystem is read-only. */ - if (sb->s_flags & MS_RDONLY) + if (sb_rdonly(sb)) return 0; ret = __sync_filesystem(sb, 0); @@ -69,13 +69,13 @@ EXPORT_SYMBOL(sync_filesystem); static void sync_inodes_one_sb(struct super_block *sb, void *arg) { - if (!(sb->s_flags & MS_RDONLY)) + if (!sb_rdonly(sb)) sync_inodes_sb(sb); } static void sync_fs_one_sb(struct super_block *sb, void *arg) { - if (!(sb->s_flags & MS_RDONLY) && sb->s_op->sync_fs) + if (!sb_rdonly(sb) && sb->s_op->sync_fs) sb->s_op->sync_fs(sb, *(int *)arg); } diff --git a/fs/sysv/balloc.c b/fs/sysv/balloc.c index 921c053fc052..862c1f74a583 100644 --- a/fs/sysv/balloc.c +++ b/fs/sysv/balloc.c @@ -231,7 +231,7 @@ trust_sb: Ecount: printk("sysv_count_free_blocks: free block count was %d, " "correcting to %d\n", sb_count, count); - if (!(sb->s_flags & MS_RDONLY)) { + if (!sb_rdonly(sb)) { *sbi->s_free_blocks = cpu_to_fs32(sbi, count); dirty_sb(sb); } diff --git a/fs/sysv/ialloc.c b/fs/sysv/ialloc.c index 53f1b78996dd..eb963fbb7903 100644 --- a/fs/sysv/ialloc.c +++ b/fs/sysv/ialloc.c @@ -220,7 +220,7 @@ Einval: printk("sysv_count_free_inodes: " "free inode count was %d, correcting to %d\n", sb_count, count); - if (!(sb->s_flags & MS_RDONLY)) { + if (!sb_rdonly(sb)) { *sbi->s_sb_total_free_inodes = cpu_to_fs16(SYSV_SB(sb), count); dirty_sb(sb); } diff --git a/fs/sysv/inode.c b/fs/sysv/inode.c index 858fb72f9e0f..1c8bf9453a71 100644 --- a/fs/sysv/inode.c +++ b/fs/sysv/inode.c @@ -70,7 +70,7 @@ static void sysv_put_super(struct super_block *sb) { struct sysv_sb_info *sbi = SYSV_SB(sb); - if (!(sb->s_flags & MS_RDONLY)) { + if (!sb_rdonly(sb)) { /* XXX ext2 also updates the state here */ mark_buffer_dirty(sbi->s_bh1); if (sbi->s_bh1 != sbi->s_bh2) diff --git a/fs/sysv/super.c b/fs/sysv/super.c index eda10959714f..0d56e486b392 100644 --- a/fs/sysv/super.c +++ b/fs/sysv/super.c @@ -216,7 +216,7 @@ static int detect_sysv(struct sysv_sb_info *sbi, struct buffer_head *bh) if (fs16_to_cpu(sbi, sbd->s_nfree) == 0xffff) { sbi->s_type = FSTYPE_AFS; sbi->s_forced_ro = 1; - if (!(sb->s_flags & MS_RDONLY)) { + if (!sb_rdonly(sb)) { printk("SysV FS: SCO EAFS on %s detected, " "forcing read-only mode.\n", sb->s_id); diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c index bffadbb67e47..5496b17b959c 100644 --- a/fs/ubifs/super.c +++ b/fs/ubifs/super.c @@ -1159,7 +1159,7 @@ static int mount_ubifs(struct ubifs_info *c) long long x, y; size_t sz; - c->ro_mount = !!(c->vfs_sb->s_flags & MS_RDONLY); + c->ro_mount = !!sb_rdonly(c->vfs_sb); /* Suppress error messages while probing if MS_SILENT is set */ c->probing = !!(c->vfs_sb->s_flags & MS_SILENT); diff --git a/fs/udf/super.c b/fs/udf/super.c index 93c59630512b..99cb81d0077f 100644 --- a/fs/udf/super.c +++ b/fs/udf/super.c @@ -673,7 +673,7 @@ static int udf_remount_fs(struct super_block *sb, int *flags, char *options) sbi->s_dmode = uopt.dmode; write_unlock(&sbi->s_cred_lock); - if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY)) + if ((bool)(*flags & MS_RDONLY) == sb_rdonly(sb)) goto out_unlock; if (*flags & MS_RDONLY) @@ -1017,7 +1017,7 @@ static int udf_load_metadata_files(struct super_block *sb, int partition, fe = udf_iget_special(sb, &addr); if (IS_ERR(fe)) { - if (sb->s_flags & MS_RDONLY) + if (sb_rdonly(sb)) udf_warn(sb, "bitmap inode efe not found but it's ok since the disc is mounted read-only\n"); else { udf_err(sb, "bitmap inode efe not found and attempted read-write mount\n"); @@ -1341,7 +1341,7 @@ static int udf_load_partdesc(struct super_block *sb, sector_t block) * writing to it (we overwrite blocks instead of relocating * them). */ - if (!(sb->s_flags & MS_RDONLY)) { + if (!sb_rdonly(sb)) { ret = -EACCES; goto out_bh; } @@ -2205,7 +2205,7 @@ static int udf_fill_super(struct super_block *sb, void *options, int silent) ret = -EINVAL; goto error_out; } else if (minUDFWriteRev > UDF_MAX_WRITE_VERSION && - !(sb->s_flags & MS_RDONLY)) { + !sb_rdonly(sb)) { ret = -EACCES; goto error_out; } @@ -2226,7 +2226,7 @@ static int udf_fill_super(struct super_block *sb, void *options, int silent) if (sbi->s_partmaps[sbi->s_partition].s_partition_flags & UDF_PART_FLAG_READ_ONLY && - !(sb->s_flags & MS_RDONLY)) { + !sb_rdonly(sb)) { ret = -EACCES; goto error_out; } @@ -2245,7 +2245,7 @@ static int udf_fill_super(struct super_block *sb, void *options, int silent) le16_to_cpu(ts.year), ts.month, ts.day, ts.hour, ts.minute, le16_to_cpu(ts.typeAndTimezone)); } - if (!(sb->s_flags & MS_RDONLY)) { + if (!sb_rdonly(sb)) { udf_open_lvid(sb); lvid_open = true; } @@ -2332,7 +2332,7 @@ static void udf_put_super(struct super_block *sb) if (UDF_QUERY_FLAG(sb, UDF_FLAG_NLS_MAP)) unload_nls(sbi->s_nls_map); #endif - if (!(sb->s_flags & MS_RDONLY)) + if (!sb_rdonly(sb)) udf_close_lvid(sb); brelse(sbi->s_lvid_bh); udf_sb_free_partitions(sb); diff --git a/fs/ufs/super.c b/fs/ufs/super.c index 0a4f58a5073c..6440003f8ddc 100644 --- a/fs/ufs/super.c +++ b/fs/ufs/super.c @@ -278,7 +278,7 @@ void ufs_error (struct super_block * sb, const char * function, uspi = UFS_SB(sb)->s_uspi; usb1 = ubh_get_usb_first(uspi); - if (!(sb->s_flags & MS_RDONLY)) { + if (!sb_rdonly(sb)) { usb1->fs_clean = UFS_FSBAD; ubh_mark_buffer_dirty(USPI_UBH(uspi)); ufs_mark_sb_dirty(sb); @@ -312,7 +312,7 @@ void ufs_panic (struct super_block * sb, const char * function, uspi = UFS_SB(sb)->s_uspi; usb1 = ubh_get_usb_first(uspi); - if (!(sb->s_flags & MS_RDONLY)) { + if (!sb_rdonly(sb)) { usb1->fs_clean = UFS_FSBAD; ubh_mark_buffer_dirty(USPI_UBH(uspi)); ufs_mark_sb_dirty(sb); @@ -742,7 +742,7 @@ static void ufs_put_super(struct super_block *sb) UFSD("ENTER\n"); - if (!(sb->s_flags & MS_RDONLY)) + if (!sb_rdonly(sb)) ufs_put_super_internal(sb); cancel_delayed_work_sync(&sbi->sync_work); @@ -793,7 +793,7 @@ static int ufs_fill_super(struct super_block *sb, void *data, int silent) UFSD("ENTER\n"); #ifndef CONFIG_UFS_FS_WRITE - if (!(sb->s_flags & MS_RDONLY)) { + if (!sb_rdonly(sb)) { pr_err("ufs was compiled with read-only support, can't be mounted as read-write\n"); return -EROFS; } @@ -805,7 +805,7 @@ static int ufs_fill_super(struct super_block *sb, void *data, int silent) sb->s_fs_info = sbi; sbi->sb = sb; - UFSD("flag %u\n", (int)(sb->s_flags & MS_RDONLY)); + UFSD("flag %u\n", (int)(sb_rdonly(sb))); mutex_init(&sbi->s_lock); spin_lock_init(&sbi->work_lock); @@ -902,7 +902,7 @@ static int ufs_fill_super(struct super_block *sb, void *data, int silent) uspi->s_sbsize = super_block_size = 2048; uspi->s_sbbase = 0; flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; - if (!(sb->s_flags & MS_RDONLY)) { + if (!sb_rdonly(sb)) { if (!silent) pr_info("ufstype=old is supported read-only\n"); sb->s_flags |= MS_RDONLY; @@ -918,7 +918,7 @@ static int ufs_fill_super(struct super_block *sb, void *data, int silent) uspi->s_sbbase = 0; uspi->s_dirblksize = 1024; flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; - if (!(sb->s_flags & MS_RDONLY)) { + if (!sb_rdonly(sb)) { if (!silent) pr_info("ufstype=nextstep is supported read-only\n"); sb->s_flags |= MS_RDONLY; @@ -934,7 +934,7 @@ static int ufs_fill_super(struct super_block *sb, void *data, int silent) uspi->s_sbbase = 0; uspi->s_dirblksize = 1024; flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; - if (!(sb->s_flags & MS_RDONLY)) { + if (!sb_rdonly(sb)) { if (!silent) pr_info("ufstype=nextstep-cd is supported read-only\n"); sb->s_flags |= MS_RDONLY; @@ -950,7 +950,7 @@ static int ufs_fill_super(struct super_block *sb, void *data, int silent) uspi->s_sbbase = 0; uspi->s_dirblksize = 1024; flags |= UFS_DE_44BSD | UFS_UID_44BSD | UFS_ST_44BSD | UFS_CG_44BSD; - if (!(sb->s_flags & MS_RDONLY)) { + if (!sb_rdonly(sb)) { if (!silent) pr_info("ufstype=openstep is supported read-only\n"); sb->s_flags |= MS_RDONLY; @@ -965,7 +965,7 @@ static int ufs_fill_super(struct super_block *sb, void *data, int silent) uspi->s_sbsize = super_block_size = 2048; uspi->s_sbbase = 0; flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; - if (!(sb->s_flags & MS_RDONLY)) { + if (!sb_rdonly(sb)) { if (!silent) pr_info("ufstype=hp is supported read-only\n"); sb->s_flags |= MS_RDONLY; @@ -1273,7 +1273,7 @@ magic_found: /* * Read cylinder group structures */ - if (!(sb->s_flags & MS_RDONLY)) + if (!sb_rdonly(sb)) if (!ufs_read_cylinder_structures(sb)) goto failed; @@ -1328,7 +1328,7 @@ static int ufs_remount (struct super_block *sb, int *mount_flags, char *data) return -EINVAL; } - if ((*mount_flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY)) { + if ((bool)(*mount_flags & MS_RDONLY) == sb_rdonly(sb)) { UFS_SB(sb)->s_mount_opt = new_mount_opt; mutex_unlock(&UFS_SB(sb)->s_lock); return 0; diff --git a/fs/xfs/xfs_quotaops.c b/fs/xfs/xfs_quotaops.c index de9493253edf..a65108594a07 100644 --- a/fs/xfs/xfs_quotaops.c +++ b/fs/xfs/xfs_quotaops.c @@ -125,7 +125,7 @@ xfs_fs_set_info( struct xfs_mount *mp = XFS_M(sb); struct qc_dqblk newlim; - if (sb->s_flags & MS_RDONLY) + if (sb_rdonly(sb)) return -EROFS; if (!XFS_IS_QUOTA_RUNNING(mp)) return -ENOSYS; @@ -175,7 +175,7 @@ xfs_quota_enable( { struct xfs_mount *mp = XFS_M(sb); - if (sb->s_flags & MS_RDONLY) + if (sb_rdonly(sb)) return -EROFS; if (!XFS_IS_QUOTA_RUNNING(mp)) return -ENOSYS; @@ -190,7 +190,7 @@ xfs_quota_disable( { struct xfs_mount *mp = XFS_M(sb); - if (sb->s_flags & MS_RDONLY) + if (sb_rdonly(sb)) return -EROFS; if (!XFS_IS_QUOTA_RUNNING(mp)) return -ENOSYS; @@ -208,7 +208,7 @@ xfs_fs_rm_xquota( struct xfs_mount *mp = XFS_M(sb); unsigned int flags = 0; - if (sb->s_flags & MS_RDONLY) + if (sb_rdonly(sb)) return -EROFS; if (XFS_IS_QUOTA_ON(mp)) @@ -279,7 +279,7 @@ xfs_fs_set_dqblk( { struct xfs_mount *mp = XFS_M(sb); - if (sb->s_flags & MS_RDONLY) + if (sb_rdonly(sb)) return -EROFS; if (!XFS_IS_QUOTA_RUNNING(mp)) return -ENOSYS; diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c index 3008f31753df..c996f4ae4a5f 100644 --- a/fs/xfs/xfs_super.c +++ b/fs/xfs/xfs_super.c @@ -210,7 +210,7 @@ xfs_parseargs( /* * Copy binary VFS mount flags we are interested in. */ - if (sb->s_flags & MS_RDONLY) + if (sb_rdonly(sb)) mp->m_flags |= XFS_MOUNT_RDONLY; if (sb->s_flags & MS_DIRSYNC) mp->m_flags |= XFS_MOUNT_DIRSYNC; |