diff options
Diffstat (limited to 'fs/btrfs/ordered-data.c')
-rw-r--r-- | fs/btrfs/ordered-data.c | 26 |
1 files changed, 13 insertions, 13 deletions
diff --git a/fs/btrfs/ordered-data.c b/fs/btrfs/ordered-data.c index da6d43eb41db..951eacff2420 100644 --- a/fs/btrfs/ordered-data.c +++ b/fs/btrfs/ordered-data.c @@ -309,7 +309,6 @@ int btrfs_wait_ordered_extents(struct btrfs_root *root, int nocow_only) { struct list_head splice; struct list_head *cur; - struct list_head *tmp; struct btrfs_ordered_extent *ordered; struct inode *inode; @@ -317,37 +316,38 @@ int btrfs_wait_ordered_extents(struct btrfs_root *root, int nocow_only) spin_lock(&root->fs_info->ordered_extent_lock); list_splice_init(&root->fs_info->ordered_extents, &splice); - list_for_each_safe(cur, tmp, &splice) { + while (!list_empty(&splice)) { cur = splice.next; ordered = list_entry(cur, struct btrfs_ordered_extent, root_extent_list); if (nocow_only && !test_bit(BTRFS_ORDERED_NOCOW, &ordered->flags)) { + list_move(&ordered->root_extent_list, + &root->fs_info->ordered_extents); cond_resched_lock(&root->fs_info->ordered_extent_lock); continue; } list_del_init(&ordered->root_extent_list); atomic_inc(&ordered->refs); - inode = ordered->inode; /* - * the inode can't go away until all the pages are gone - * and the pages won't go away while there is still - * an ordered extent and the ordered extent won't go - * away until it is off this list. So, we can safely - * increment i_count here and call iput later + * the inode may be getting freed (in sys_unlink path). */ - atomic_inc(&inode->i_count); + inode = igrab(ordered->inode); + spin_unlock(&root->fs_info->ordered_extent_lock); - btrfs_start_ordered_extent(inode, ordered, 1); - btrfs_put_ordered_extent(ordered); - iput(inode); + if (inode) { + btrfs_start_ordered_extent(inode, ordered, 1); + btrfs_put_ordered_extent(ordered); + iput(inode); + } else { + btrfs_put_ordered_extent(ordered); + } spin_lock(&root->fs_info->ordered_extent_lock); } - list_splice_init(&splice, &root->fs_info->ordered_extents); spin_unlock(&root->fs_info->ordered_extent_lock); return 0; } |