diff options
Diffstat (limited to 'fs/btrfs/extent_io.c')
| -rw-r--r-- | fs/btrfs/extent_io.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index cf939f85ca47..618c6890699a 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -5448,6 +5448,7 @@ int extent_fiemap(struct btrfs_inode *inode, struct fiemap_extent_info *fieinfo, struct btrfs_path *path; struct btrfs_root *root = inode->root; struct fiemap_cache cache = { 0 }; + struct btrfs_backref_shared_cache *backref_cache; struct ulist *roots; struct ulist *tmp_ulist; int end = 0; @@ -5455,13 +5456,11 @@ int extent_fiemap(struct btrfs_inode *inode, struct fiemap_extent_info *fieinfo, u64 em_len = 0; u64 em_end = 0; + backref_cache = kzalloc(sizeof(*backref_cache), GFP_KERNEL); path = btrfs_alloc_path(); - if (!path) - return -ENOMEM; - roots = ulist_alloc(GFP_KERNEL); tmp_ulist = ulist_alloc(GFP_KERNEL); - if (!roots || !tmp_ulist) { + if (!backref_cache || !path || !roots || !tmp_ulist) { ret = -ENOMEM; goto out_free_ulist; } @@ -5587,7 +5586,8 @@ int extent_fiemap(struct btrfs_inode *inode, struct fiemap_extent_info *fieinfo, */ ret = btrfs_is_data_extent_shared(root, btrfs_ino(inode), bytenr, roots, - tmp_ulist); + tmp_ulist, + backref_cache); if (ret < 0) goto out_free; if (ret) @@ -5639,6 +5639,7 @@ out: &cached_state); out_free_ulist: + kfree(backref_cache); btrfs_free_path(path); ulist_free(roots); ulist_free(tmp_ulist); |