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-rw-r--r--fs/btrfs/ctree.h13
-rw-r--r--fs/btrfs/disk-io.c5
-rw-r--r--fs/btrfs/extent_io.c3
-rw-r--r--fs/btrfs/file.c3
-rw-r--r--fs/btrfs/inode.c15
-rw-r--r--fs/btrfs/ioctl.c10
-rw-r--r--fs/btrfs/ordered-data.c2
-rw-r--r--fs/btrfs/relocation.c2
-rw-r--r--fs/btrfs/send.c10
-rw-r--r--fs/btrfs/super.c49
-rw-r--r--fs/btrfs/transaction.c7
-rw-r--r--fs/btrfs/volumes.c4
12 files changed, 85 insertions, 38 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index c38734a07a65..0d195b507660 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -3341,10 +3341,22 @@ ssize_t btrfs_listxattr(struct dentry *dentry, char *buffer, size_t size);
/* super.c */
int btrfs_parse_options(struct btrfs_root *root, char *options);
int btrfs_sync_fs(struct super_block *sb, int wait);
+
+#ifdef CONFIG_PRINTK
+__printf(2, 3)
void btrfs_printk(struct btrfs_fs_info *fs_info, const char *fmt, ...);
+#else
+static inline __printf(2, 3)
+void btrfs_printk(struct btrfs_fs_info *fs_info, const char *fmt, ...)
+{
+}
+#endif
+
+__printf(5, 6)
void __btrfs_std_error(struct btrfs_fs_info *fs_info, const char *function,
unsigned int line, int errno, const char *fmt, ...);
+
void __btrfs_abort_transaction(struct btrfs_trans_handle *trans,
struct btrfs_root *root, const char *function,
unsigned int line, int errno);
@@ -3385,6 +3397,7 @@ do { \
(errno), fmt, ##args); \
} while (0)
+__printf(5, 6)
void __btrfs_panic(struct btrfs_fs_info *fs_info, const char *function,
unsigned int line, int errno, const char *fmt, ...);
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 29c69e60d3b0..22e98e04c2ea 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -1116,7 +1116,7 @@ void clean_tree_block(struct btrfs_trans_handle *trans, struct btrfs_root *root,
spin_unlock(&root->fs_info->delalloc_lock);
btrfs_panic(root->fs_info, -EOVERFLOW,
"Can't clear %lu bytes from "
- " dirty_mdatadata_bytes (%lu)",
+ " dirty_mdatadata_bytes (%llu)",
buf->len,
root->fs_info->dirty_metadata_bytes);
}
@@ -1616,8 +1616,6 @@ static int cleaner_kthread(void *arg)
struct btrfs_root *root = arg;
do {
- vfs_check_frozen(root->fs_info->sb, SB_FREEZE_WRITE);
-
if (!(root->fs_info->sb->s_flags & MS_RDONLY) &&
mutex_trylock(&root->fs_info->cleaner_mutex)) {
btrfs_run_delayed_iputs(root);
@@ -1649,7 +1647,6 @@ static int transaction_kthread(void *arg)
do {
cannot_commit = false;
delay = HZ * 30;
- vfs_check_frozen(root->fs_info->sb, SB_FREEZE_WRITE);
mutex_lock(&root->fs_info->transaction_kthread_mutex);
spin_lock(&root->fs_info->trans_lock);
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 49085f2336d2..4c878476bb91 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -929,7 +929,8 @@ int set_extent_bit(struct extent_io_tree *tree, u64 start, u64 end, int bits,
/**
- * convert_extent - convert all bits in a given range from one bit to another
+ * convert_extent_bit - convert all bits in a given range from one bit to
+ * another
* @tree: the io tree to search
* @start: the start offset in bytes
* @end: the end offset in bytes (inclusive)
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 9aa01ec2138d..5caf285c6e4d 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -1379,7 +1379,7 @@ static ssize_t btrfs_file_aio_write(struct kiocb *iocb,
ssize_t err = 0;
size_t count, ocount;
- vfs_check_frozen(inode->i_sb, SB_FREEZE_WRITE);
+ sb_start_write(inode->i_sb);
mutex_lock(&inode->i_mutex);
@@ -1469,6 +1469,7 @@ static ssize_t btrfs_file_aio_write(struct kiocb *iocb,
num_written = err;
}
out:
+ sb_end_write(inode->i_sb);
current->backing_dev_info = NULL;
return num_written ? num_written : err;
}
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 6ba80b902877..ec154f954646 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -324,7 +324,8 @@ static noinline int add_async_extent(struct async_cow *cow,
* If this code finds it can't get good compression, it puts an
* entry onto the work queue to write the uncompressed bytes. This
* makes sure that both compressed inodes and uncompressed inodes
- * are written in the same order that pdflush sent them down.
+ * are written in the same order that the flusher thread sent them
+ * down.
*/
static noinline int compress_file_range(struct inode *inode,
struct page *locked_page,
@@ -4249,7 +4250,7 @@ static void btrfs_dentry_release(struct dentry *dentry)
}
static struct dentry *btrfs_lookup(struct inode *dir, struct dentry *dentry,
- struct nameidata *nd)
+ unsigned int flags)
{
struct dentry *ret;
@@ -4903,7 +4904,7 @@ out_unlock:
}
static int btrfs_create(struct inode *dir, struct dentry *dentry,
- umode_t mode, struct nameidata *nd)
+ umode_t mode, bool excl)
{
struct btrfs_trans_handle *trans;
struct btrfs_root *root = BTRFS_I(dir)->root;
@@ -6631,6 +6632,7 @@ int btrfs_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
u64 page_start;
u64 page_end;
+ sb_start_pagefault(inode->i_sb);
ret = btrfs_delalloc_reserve_space(inode, PAGE_CACHE_SIZE);
if (!ret) {
ret = file_update_time(vma->vm_file);
@@ -6720,12 +6722,15 @@ again:
unlock_extent_cached(io_tree, page_start, page_end, &cached_state, GFP_NOFS);
out_unlock:
- if (!ret)
+ if (!ret) {
+ sb_end_pagefault(inode->i_sb);
return VM_FAULT_LOCKED;
+ }
unlock_page(page);
out:
btrfs_delalloc_release_space(inode, PAGE_CACHE_SIZE);
out_noreserve:
+ sb_end_pagefault(inode->i_sb);
return ret;
}
@@ -6997,7 +7002,7 @@ void btrfs_destroy_inode(struct inode *inode)
struct btrfs_ordered_extent *ordered;
struct btrfs_root *root = BTRFS_I(inode)->root;
- WARN_ON(!list_empty(&inode->i_dentry));
+ WARN_ON(!hlist_empty(&inode->i_dentry));
WARN_ON(inode->i_data.nrpages);
WARN_ON(BTRFS_I(inode)->outstanding_extents);
WARN_ON(BTRFS_I(inode)->reserved_extents);
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index a1fbca0a1003..9df50fa8a078 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -195,6 +195,10 @@ static int btrfs_ioctl_setflags(struct file *file, void __user *arg)
if (!inode_owner_or_capable(inode))
return -EACCES;
+ ret = mnt_want_write_file(file);
+ if (ret)
+ return ret;
+
mutex_lock(&inode->i_mutex);
ip_oldflags = ip->flags;
@@ -209,10 +213,6 @@ static int btrfs_ioctl_setflags(struct file *file, void __user *arg)
}
}
- ret = mnt_want_write_file(file);
- if (ret)
- goto out_unlock;
-
if (flags & FS_SYNC_FL)
ip->flags |= BTRFS_INODE_SYNC;
else
@@ -275,9 +275,9 @@ static int btrfs_ioctl_setflags(struct file *file, void __user *arg)
inode->i_flags = i_oldflags;
}
- mnt_drop_write_file(file);
out_unlock:
mutex_unlock(&inode->i_mutex);
+ mnt_drop_write_file(file);
return ret;
}
diff --git a/fs/btrfs/ordered-data.c b/fs/btrfs/ordered-data.c
index 643335a4fe3c..051c7fe551dd 100644
--- a/fs/btrfs/ordered-data.c
+++ b/fs/btrfs/ordered-data.c
@@ -596,7 +596,7 @@ void btrfs_start_ordered_extent(struct inode *inode,
/*
* pages in the range can be dirty, clean or writeback. We
* start IO on any dirty ones so the wait doesn't stall waiting
- * for pdflush to find them
+ * for the flusher thread to find them
*/
if (!test_bit(BTRFS_ORDERED_DIRECT, &entry->flags))
filemap_fdatawrite_range(inode->i_mapping, start, end);
diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
index c5dbd9149679..4da08652004d 100644
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -1241,7 +1241,7 @@ static int __must_check __add_reloc_root(struct btrfs_root *root)
if (rb_node) {
btrfs_panic(root->fs_info, -EEXIST, "Duplicate root found "
"for start=%llu while inserting into relocation "
- "tree\n");
+ "tree\n", node->bytenr);
kfree(node);
return -EEXIST;
}
diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c
index bf232c88a0bf..fb5ffe95f869 100644
--- a/fs/btrfs/send.c
+++ b/fs/btrfs/send.c
@@ -25,6 +25,7 @@
#include <linux/posix_acl_xattr.h>
#include <linux/radix-tree.h>
#include <linux/crc32c.h>
+#include <linux/vmalloc.h>
#include "send.h"
#include "backref.h"
@@ -1993,7 +1994,7 @@ static int open_cur_inode_file(struct send_ctx *sctx)
{
int ret = 0;
struct btrfs_key key;
- struct vfsmount *mnt;
+ struct path path;
struct inode *inode;
struct dentry *dentry;
struct file *filp;
@@ -2020,10 +2021,11 @@ static int open_cur_inode_file(struct send_ctx *sctx)
goto out;
}
- mnt = mntget(sctx->mnt);
- filp = dentry_open(dentry, mnt, O_RDONLY | O_LARGEFILE, current_cred());
+ path.mnt = sctx->mnt;
+ path.dentry = dentry;
+ filp = dentry_open(&path, O_RDONLY | O_LARGEFILE, current_cred());
+ dput(dentry);
dentry = NULL;
- mnt = NULL;
if (IS_ERR(filp)) {
ret = PTR_ERR(filp);
goto out;
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 073c2368f459..83d6f9f9c220 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -100,10 +100,6 @@ static void __save_error_info(struct btrfs_fs_info *fs_info)
fs_info->fs_state = BTRFS_SUPER_FLAG_ERROR;
}
-/* NOTE:
- * We move write_super stuff at umount in order to avoid deadlock
- * for umount hold all lock.
- */
static void save_error_info(struct btrfs_fs_info *fs_info)
{
__save_error_info(fs_info);
@@ -125,6 +121,7 @@ static void btrfs_handle_error(struct btrfs_fs_info *fs_info)
}
}
+#ifdef CONFIG_PRINTK
/*
* __btrfs_std_error decodes expected errors from the caller and
* invokes the approciate error response.
@@ -167,7 +164,7 @@ void __btrfs_std_error(struct btrfs_fs_info *fs_info, const char *function,
va_end(args);
}
-const char *logtypes[] = {
+static const char * const logtypes[] = {
"emergency",
"alert",
"critical",
@@ -185,21 +182,49 @@ void btrfs_printk(struct btrfs_fs_info *fs_info, const char *fmt, ...)
struct va_format vaf;
va_list args;
const char *type = logtypes[4];
+ int kern_level;
va_start(args, fmt);
- if (fmt[0] == '<' && isdigit(fmt[1]) && fmt[2] == '>') {
- memcpy(lvl, fmt, 3);
- lvl[3] = '\0';
- fmt += 3;
- type = logtypes[fmt[1] - '0'];
+ kern_level = printk_get_level(fmt);
+ if (kern_level) {
+ size_t size = printk_skip_level(fmt) - fmt;
+ memcpy(lvl, fmt, size);
+ lvl[size] = '\0';
+ fmt += size;
+ type = logtypes[kern_level - '0'];
} else
*lvl = '\0';
vaf.fmt = fmt;
vaf.va = &args;
+
printk("%sBTRFS %s (device %s): %pV", lvl, type, sb->s_id, &vaf);
+
+ va_end(args);
+}
+
+#else
+
+void __btrfs_std_error(struct btrfs_fs_info *fs_info, const char *function,
+ unsigned int line, int errno, const char *fmt, ...)
+{
+ struct super_block *sb = fs_info->sb;
+
+ /*
+ * 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))
+ return;
+
+ /* Don't go through full error handling during mount */
+ if (sb->s_flags & MS_BORN) {
+ save_error_info(fs_info);
+ btrfs_handle_error(fs_info);
+ }
}
+#endif
/*
* We only mark the transaction aborted and then set the file system read-only.
@@ -1081,7 +1106,8 @@ static struct dentry *btrfs_mount(struct file_system_type *fs_type, int flags,
}
bdev = fs_devices->latest_bdev;
- s = sget(fs_type, btrfs_test_super, btrfs_set_super, fs_info);
+ s = sget(fs_type, btrfs_test_super, btrfs_set_super, flags | MS_NOSEC,
+ fs_info);
if (IS_ERR(s)) {
error = PTR_ERR(s);
goto error_close_devices;
@@ -1095,7 +1121,6 @@ static struct dentry *btrfs_mount(struct file_system_type *fs_type, int flags,
} else {
char b[BDEVNAME_SIZE];
- s->s_flags = flags | MS_NOSEC;
strlcpy(s->s_id, bdevname(bdev, b), sizeof(s->s_id));
btrfs_sb(s)->bdev_holder = fs_type;
error = btrfs_fill_super(s, fs_devices, data,
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index 3ee8d58e97ad..27c26004e050 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -335,6 +335,8 @@ again:
if (!h)
return ERR_PTR(-ENOMEM);
+ sb_start_intwrite(root->fs_info->sb);
+
if (may_wait_transaction(root, type))
wait_current_trans(root);
@@ -345,6 +347,7 @@ again:
} while (ret == -EBUSY);
if (ret < 0) {
+ sb_end_intwrite(root->fs_info->sb);
kmem_cache_free(btrfs_trans_handle_cachep, h);
return ERR_PTR(ret);
}
@@ -548,6 +551,8 @@ static int __btrfs_end_transaction(struct btrfs_trans_handle *trans,
btrfs_trans_release_metadata(trans, root);
trans->block_rsv = NULL;
+ sb_end_intwrite(root->fs_info->sb);
+
if (lock && !atomic_read(&root->fs_info->open_ioctl_trans) &&
should_end_transaction(trans, root)) {
trans->transaction->blocked = 1;
@@ -1579,6 +1584,8 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
put_transaction(cur_trans);
put_transaction(cur_trans);
+ sb_end_intwrite(root->fs_info->sb);
+
trace_btrfs_transaction_commit(root);
btrfs_scrub_continue(root);
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 3f4e70e171ed..88b969aeeb71 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -1745,10 +1745,6 @@ int btrfs_init_new_device(struct btrfs_root *root, char *device_path)
device->fs_devices = root->fs_info->fs_devices;
- /*
- * we don't want write_supers to jump in here with our device
- * half setup
- */
mutex_lock(&root->fs_info->fs_devices->device_list_mutex);
list_add_rcu(&device->dev_list, &root->fs_info->fs_devices->devices);
list_add(&device->dev_alloc_list,
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-07 23:40:18 +0100