diff options
Diffstat (limited to 'fs/btrfs/extent_io.c')
| -rw-r--r-- | fs/btrfs/extent_io.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index db337e53aab3..441f6c47cebd 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -4542,6 +4542,8 @@ int extent_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, struct btrfs_path *path; struct btrfs_root *root = BTRFS_I(inode)->root; struct fiemap_cache cache = { 0 }; + struct ulist *roots; + struct ulist *tmp_ulist; int end = 0; u64 em_start = 0; u64 em_len = 0; @@ -4555,6 +4557,13 @@ int extent_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, return -ENOMEM; path->leave_spinning = 1; + roots = ulist_alloc(GFP_KERNEL); + tmp_ulist = ulist_alloc(GFP_KERNEL); + if (!roots || !tmp_ulist) { + ret = -ENOMEM; + goto out_free_ulist; + } + start = round_down(start, btrfs_inode_sectorsize(inode)); len = round_up(max, btrfs_inode_sectorsize(inode)) - start; @@ -4566,7 +4575,7 @@ int extent_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, btrfs_ino(BTRFS_I(inode)), -1, 0); if (ret < 0) { btrfs_free_path(path); - return ret; + goto out_free_ulist; } else { WARN_ON(!ret); if (ret == 1) @@ -4675,7 +4684,7 @@ int extent_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, */ ret = btrfs_check_shared(root, btrfs_ino(BTRFS_I(inode)), - bytenr); + bytenr, roots, tmp_ulist); if (ret < 0) goto out_free; if (ret) @@ -4721,6 +4730,10 @@ out: btrfs_free_path(path); unlock_extent_cached(&BTRFS_I(inode)->io_tree, start, start + len - 1, &cached_state); + +out_free_ulist: + ulist_free(roots); + ulist_free(tmp_ulist); return ret; } |