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| author | Al Viro <viro@zeniv.linux.org.uk> | 2011-02-22 15:50:10 -0500 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2011-03-14 09:15:24 -0400 |
| commit | 16c2cd7179881d5dd87779512ca5a0d657c64f62 (patch) | |
| tree | 822d14ecf505cb3f53e2afe3e1e7867bb32ca346 /include/linux/namei.h | |
| parent | fe479a580dc9c737c4eb49ff7fdb31d41d2c7003 (diff) | |
| download | lwn-16c2cd7179881d5dd87779512ca5a0d657c64f62.tar.gz lwn-16c2cd7179881d5dd87779512ca5a0d657c64f62.zip | |
untangle the "need_reval_dot" mess
instead of ad-hackery around need_reval_dot(), do the following:
set a flag (LOOKUP_JUMPED) in the beginning of path, on absolute
symlink traversal, on ".." and on procfs-style symlinks. Clear on
normal components, leave unchanged on ".". Non-nested callers of
link_path_walk() call handle_reval_path(), which checks that flag
is set and that fs does want the final revalidate thing, then does
->d_revalidate(). In link_path_walk() all the return_reval stuff
is gone.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'include/linux/namei.h')
| -rw-r--r-- | include/linux/namei.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/namei.h b/include/linux/namei.h index 58ce3433d4ec..265378a707bd 100644 --- a/include/linux/namei.h +++ b/include/linux/namei.h @@ -63,6 +63,8 @@ enum {LAST_NORM, LAST_ROOT, LAST_DOT, LAST_DOTDOT, LAST_BIND}; #define LOOKUP_EXCL 0x0400 #define LOOKUP_RENAME_TARGET 0x0800 +#define LOOKUP_JUMPED 0x1000 + extern int user_path_at(int, const char __user *, unsigned, struct path *); #define user_path(name, path) user_path_at(AT_FDCWD, name, LOOKUP_FOLLOW, path) |