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| author | Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> | 2015-04-16 21:46:45 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-04-17 15:04:04 +0200 |
| commit | 3377f843cf80e33d63f1a3ded67fd129a298c6b0 (patch) | |
| tree | 284d365bdc807ec92d1094406aad3ca5c58bb0e9 /fs/nilfs2 | |
| parent | nilfs2: improve execution time of NILFS_IOCTL_GET_CPINFO ioctl (diff) | |
| download | linux-3377f843cf80e33d63f1a3ded67fd129a298c6b0.tar.xz linux-3377f843cf80e33d63f1a3ded67fd129a298c6b0.zip | |
nilfs2: fix gcc warning at nilfs_checkpoint_is_mounted()
Fix the following build warning:
fs/nilfs2/super.c: In function 'nilfs_checkpoint_is_mounted':
fs/nilfs2/super.c:1023:10: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits]
if (cno < 0 || cno > nilfs->ns_cno)
^
This warning indicates that the comparision "cno < 0" is useless because
variable "cno" has an unsigned integer type "__u64".
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Reported-by: David Binderman <dcb314@hotmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/nilfs2')
| -rw-r--r-- | fs/nilfs2/super.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/nilfs2/super.c b/fs/nilfs2/super.c index 5bc2a1cf73c3..c1725f20a9d1 100644 --- a/fs/nilfs2/super.c +++ b/fs/nilfs2/super.c @@ -1020,7 +1020,7 @@ int nilfs_checkpoint_is_mounted(struct super_block *sb, __u64 cno) struct dentry *dentry; int ret; - if (cno < 0 || cno > nilfs->ns_cno) + if (cno > nilfs->ns_cno) return false; if (cno >= nilfs_last_cno(nilfs)) |