| From | Al Viro <> | Subject | [PATCH v3 024/110] do_last: kill symlink_ok | Date | Mon, 11 May 2015 19:06:44 +0100 |
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From: Al Viro <viro@zeniv.linux.org.uk>
When O_PATH is present, O_CREAT isn't, so symlink_ok is always equal to (open_flags & O_PATH) && !(nd->flags & LOOKUP_FOLLOW).
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> --- fs/namei.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/fs/namei.c b/fs/namei.c index 4c1a8bf..3e45233 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -2931,7 +2931,6 @@ static int do_last(struct nameidata *nd, struct path *path, bool got_write = false; int acc_mode = op->acc_mode; struct inode *inode; - bool symlink_ok = false; struct path save_parent = { .dentry = NULL, .mnt = NULL }; bool retried = false; int error; @@ -2949,8 +2948,6 @@ static int do_last(struct nameidata *nd, struct path *path, if (!(open_flag & O_CREAT)) { if (nd->last.name[nd->last.len]) nd->flags |= LOOKUP_FOLLOW | LOOKUP_DIRECTORY; - if (open_flag & O_PATH && !(nd->flags & LOOKUP_FOLLOW)) - symlink_ok = true; /* we _can_ be in RCU mode here */ error = lookup_fast(nd, path, &inode); if (likely(!error)) @@ -3050,7 +3047,8 @@ retry_lookup: } finish_lookup: /* we _can_ be in RCU mode here */ - if (should_follow_link(path->dentry, !symlink_ok)) { + if (should_follow_link(path->dentry, + !(open_flag & O_PATH) || (nd->flags & LOOKUP_FOLLOW))) { if (nd->flags & LOOKUP_RCU) { if (unlikely(nd->path.mnt != path->mnt || unlazy_walk(nd, path->dentry))) { -- 2.1.4
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