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authorOGAWA Hirofumi <hirofumi@mail.parknet.co.jp>2008-10-16 07:50:29 +0900
committerAl Viro <viro@zeniv.linux.org.uk>2008-10-23 05:13:20 -0400
commit4e9ed2f85af7adfa7c3f0efa839a53186254fdcb (patch)
treed59efd278d8d8474d9869211ba4424143ea84b75
parent0612d9fb270a474fe6a46cc5b8d3f5b71cf5f580 (diff)
downloadop-kernel-dev-4e9ed2f85af7adfa7c3f0efa839a53186254fdcb.zip
op-kernel-dev-4e9ed2f85af7adfa7c3f0efa839a53186254fdcb.tar.gz
[PATCH vfs-2.6 6/6] vfs: add LOOKUP_RENAME_TARGET intent
This adds LOOKUP_RENAME_TARGET intent for lookup of rename destination. LOOKUP_RENAME_TARGET is going to be used like LOOKUP_CREATE. But since the destination of rename() can be existing directory entry, so it has a difference. Although that difference doesn't matter in my usage, this tells it to user of this intent. Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
-rw-r--r--fs/namei.c1
-rw-r--r--include/linux/namei.h1
2 files changed, 2 insertions, 0 deletions
diff --git a/fs/namei.c b/fs/namei.c
index 18894fd..9e2a534 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -2654,6 +2654,7 @@ asmlinkage long sys_renameat(int olddfd, const char __user *oldname,
oldnd.flags &= ~LOOKUP_PARENT;
newnd.flags &= ~LOOKUP_PARENT;
+ newnd.flags |= LOOKUP_RENAME_TARGET;
trap = lock_rename(new_dir, old_dir);
diff --git a/include/linux/namei.h b/include/linux/namei.h
index 6b5627a..99eb803 100644
--- a/include/linux/namei.h
+++ b/include/linux/namei.h
@@ -54,6 +54,7 @@ enum {LAST_NORM, LAST_ROOT, LAST_DOT, LAST_DOTDOT, LAST_BIND};
#define LOOKUP_OPEN 0x0100
#define LOOKUP_CREATE 0x0200
#define LOOKUP_EXCL 0x0400
+#define LOOKUP_RENAME_TARGET 0x0800
extern int user_path_at(int, const char __user *, unsigned, struct path *);
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