diff options
Diffstat (limited to 'fs/nilfs2/ioctl.c')
| -rw-r--r-- | fs/nilfs2/ioctl.c | 24 |
1 files changed, 14 insertions, 10 deletions
diff --git a/fs/nilfs2/ioctl.c b/fs/nilfs2/ioctl.c index f90a33d9a5b0..3e90f86d5bfe 100644 --- a/fs/nilfs2/ioctl.c +++ b/fs/nilfs2/ioctl.c @@ -22,7 +22,6 @@ #include <linux/fs.h> #include <linux/wait.h> -#include <linux/smp_lock.h> /* lock_kernel(), unlock_kernel() */ #include <linux/slab.h> #include <linux/capability.h> /* capable() */ #include <linux/uaccess.h> /* copy_from_user(), copy_to_user() */ @@ -118,7 +117,7 @@ static int nilfs_ioctl_change_cpmode(struct inode *inode, struct file *filp, if (copy_from_user(&cpmode, argp, sizeof(cpmode))) goto out; - mutex_lock(&nilfs->ns_mount_mutex); + down_read(&inode->i_sb->s_umount); nilfs_transaction_begin(inode->i_sb, &ti, 0); ret = nilfs_cpfile_change_cpmode( @@ -128,7 +127,7 @@ static int nilfs_ioctl_change_cpmode(struct inode *inode, struct file *filp, else nilfs_transaction_commit(inode->i_sb); /* never fails */ - mutex_unlock(&nilfs->ns_mount_mutex); + up_read(&inode->i_sb->s_umount); out: mnt_drop_write(filp->f_path.mnt); return ret; @@ -334,7 +333,7 @@ static int nilfs_ioctl_move_inode_block(struct inode *inode, return 0; } -static int nilfs_ioctl_move_blocks(struct the_nilfs *nilfs, +static int nilfs_ioctl_move_blocks(struct super_block *sb, struct nilfs_argv *argv, void *buf) { size_t nmembs = argv->v_nmembs; @@ -349,7 +348,7 @@ static int nilfs_ioctl_move_blocks(struct the_nilfs *nilfs, for (i = 0, vdesc = buf; i < nmembs; ) { ino = vdesc->vd_ino; cno = vdesc->vd_cno; - inode = nilfs_gc_iget(nilfs, ino, cno); + inode = nilfs_iget_for_gc(sb, ino, cno); if (unlikely(inode == NULL)) { ret = -ENOMEM; goto failed; @@ -357,11 +356,15 @@ static int nilfs_ioctl_move_blocks(struct the_nilfs *nilfs, do { ret = nilfs_ioctl_move_inode_block(inode, vdesc, &buffers); - if (unlikely(ret < 0)) + if (unlikely(ret < 0)) { + iput(inode); goto failed; + } vdesc++; } while (++i < nmembs && vdesc->vd_ino == ino && vdesc->vd_cno == cno); + + iput(inode); /* The inode still remains in GC inode list */ } list_for_each_entry_safe(bh, n, &buffers, b_assoc_buffers) { @@ -567,7 +570,7 @@ static int nilfs_ioctl_clean_segments(struct inode *inode, struct file *filp, } /* - * nilfs_ioctl_move_blocks() will call nilfs_gc_iget(), + * nilfs_ioctl_move_blocks() will call nilfs_iget_for_gc(), * which will operates an inode list without blocking. * To protect the list from concurrent operations, * nilfs_ioctl_move_blocks should be atomic operation. @@ -577,15 +580,16 @@ static int nilfs_ioctl_clean_segments(struct inode *inode, struct file *filp, goto out_free; } - ret = nilfs_ioctl_move_blocks(nilfs, &argv[0], kbufs[0]); + vfs_check_frozen(inode->i_sb, SB_FREEZE_WRITE); + + ret = nilfs_ioctl_move_blocks(inode->i_sb, &argv[0], kbufs[0]); if (ret < 0) printk(KERN_ERR "NILFS: GC failed during preparation: " "cannot read source blocks: err=%d\n", ret); else ret = nilfs_clean_segments(inode->i_sb, argv, kbufs); - if (ret < 0) - nilfs_remove_all_gcinode(nilfs); + nilfs_remove_all_gcinodes(nilfs); clear_nilfs_gc_running(nilfs); out_free: |