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Subject[PATCH 37/39] union-mount: Implement union-aware utimensat()
Date

Signed-off-by: Valerie Aurora <vaurora@redhat.com>
---
fs/utimes.c | 14 ++++++++++++--
1 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/fs/utimes.c b/fs/utimes.c
index e4c75db..e83b6bd 100644
--- a/fs/utimes.c
+++ b/fs/utimes.c
@@ -8,8 +8,10 @@
#include <linux/stat.h>
#include <linux/utime.h>
#include <linux/syscalls.h>
+#include <linux/slab.h>
#include <asm/uaccess.h>
#include <asm/unistd.h>
+#include "union.h"

#ifdef __ARCH_WANT_SYS_UTIME

@@ -152,18 +154,26 @@ long do_utimes(int dfd, char __user *filename, struct timespec *times, int flags
error = utimes_common(&file->f_path, times);
fput(file);
} else {
+ struct nameidata nd;
+ char *tmp;
struct path path;
int lookup_flags = 0;

if (!(flags & AT_SYMLINK_NOFOLLOW))
lookup_flags |= LOOKUP_FOLLOW;

- error = user_path_at(dfd, filename, lookup_flags, &path);
+ error = user_path_nd(dfd, filename, lookup_flags, &nd, &path,
+ &tmp);
if (error)
goto out;

- error = utimes_common(&path, times);
+ error = union_copyup(&nd, &path);
+
+ if (!error)
+ error = utimes_common(&path, times);
path_put(&path);
+ path_put(&nd.path);
+ putname(tmp);
}

out:
--
1.6.3.3


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