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| author | Geert Uytterhoeven <geert@linux-m68k.org> | 2018-06-22 10:18:29 +0300 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2018-08-06 14:12:39 +0300 |
| commit | bc931c0ef8f9e21ed5732ea148aeea9d0fffd3f8 (patch) | |
| tree | a328fba2e7b984b269663e3f93dabbce11e6384a /fs/btrfs/inode-map.c | |
| parent | d3c6be6fdab48dd26af3d3e01c5972ffe20985b9 (diff) | |
| download | linux-bc931c0ef8f9e21ed5732ea148aeea9d0fffd3f8.tar.xz | |
btrfs: Refactor count handling in btrfs_unpin_free_ino
With gcc 4.1.2:
fs/btrfs/inode-map.c: In function ‘btrfs_unpin_free_ino’:
fs/btrfs/inode-map.c:241: warning: ‘count’ may be used uninitialized in this function
While this warning is a false-positive, it can easily be killed by
refactoring the code.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/inode-map.c')
| -rw-r--r-- | fs/btrfs/inode-map.c | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/fs/btrfs/inode-map.c b/fs/btrfs/inode-map.c index 12fcd8897c33..a56f88ea9c73 100644 --- a/fs/btrfs/inode-map.c +++ b/fs/btrfs/inode-map.c @@ -244,8 +244,6 @@ void btrfs_unpin_free_ino(struct btrfs_root *root) return; while (1) { - bool add_to_ctl = true; - spin_lock(rbroot_lock); n = rb_first(rbroot); if (!n) { @@ -257,15 +255,14 @@ void btrfs_unpin_free_ino(struct btrfs_root *root) BUG_ON(info->bitmap); /* Logic error */ if (info->offset > root->ino_cache_progress) - add_to_ctl = false; - else if (info->offset + info->bytes > root->ino_cache_progress) - count = root->ino_cache_progress - info->offset + 1; + count = 0; else - count = info->bytes; + count = min(root->ino_cache_progress - info->offset + 1, + info->bytes); rb_erase(&info->offset_index, rbroot); spin_unlock(rbroot_lock); - if (add_to_ctl) + if (count) __btrfs_add_free_space(root->fs_info, ctl, info->offset, count); kmem_cache_free(btrfs_free_space_cachep, info); |