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authorRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>2015-04-16 22:46:45 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2015-04-17 16:04:04 +0300
commit3377f843cf80e33d63f1a3ded67fd129a298c6b0 (patch)
tree284d365bdc807ec92d1094406aad3ca5c58bb0e9 /fs
parent53a2c3bdf4132c2c9cc3581e15265fd962f34fa8 (diff)
downloadlinux-3377f843cf80e33d63f1a3ded67fd129a298c6b0.tar.xz
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')
-rw-r--r--fs/nilfs2/super.c2
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))