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[PATCH] stat: avoid redundant stat() calls
From: |
Pádraig Brady |
Subject: |
[PATCH] stat: avoid redundant stat() calls |
Date: |
Thu, 29 May 2014 16:46:36 +0100 |
* src/stat.c (find_bind_mount): NAME is invariant in the loop,
so only stat(NAME) outside the loop.
---
src/stat.c | 8 +++++---
1 files changed, 5 insertions(+), 3 deletions(-)
diff --git a/src/stat.c b/src/stat.c
index 6f42b61..0f67d22 100644
--- a/src/stat.c
+++ b/src/stat.c
@@ -841,17 +841,19 @@ find_bind_mount (char const * name)
tried_mount_list = true;
}
+ struct stat name_stats;
+ if (stat (name, &name_stats) != 0)
+ return NULL;
+
struct mount_entry *me;
for (me = mount_list; me; me = me->me_next)
{
if (me->me_dummy && me->me_devname[0] == '/'
&& STREQ (me->me_mountdir, name))
{
- struct stat name_stats;
struct stat dev_stats;
- if (stat (name, &name_stats) == 0
- && stat (me->me_devname, &dev_stats) == 0
+ if (stat (me->me_devname, &dev_stats) == 0
&& SAME_INODE (name_stats, dev_stats))
{
bind_mount = me->me_devname;
--
1.7.7.6
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