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VFS: Make link_path_walk set LOOKUP_CONTINUE before calling permission().

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This will allow nfs_permission() to perform additional optimizations when
 walking the path, by folding the ACCESS(MAY_EXEC) call on the directory
 into the lookup revalidation.

 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust 2005-10-18 14:20:18 -07:00
parent 6f926b5ba7
commit cdce5d6b94
1 changed files with 1 additions and 1 deletions
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2
fs/namei.c
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@ -763,6 +763,7 @@ static fastcall int __link_path_walk(const char * name, struct nameidata *nd)
struct qstr this; struct qstr this;
unsigned int c; unsigned int c;
nd->flags |= LOOKUP_CONTINUE;
err = exec_permission_lite(inode, nd); err = exec_permission_lite(inode, nd);
if (err == -EAGAIN) { if (err == -EAGAIN) {
err = permission(inode, MAY_EXEC, nd); err = permission(inode, MAY_EXEC, nd);
@ -815,7 +816,6 @@ static fastcall int __link_path_walk(const char * name, struct nameidata *nd)
if (err < 0) if (err < 0)
break; break;
} }
nd->flags |= LOOKUP_CONTINUE;
/* This does the actual lookups.. */ /* This does the actual lookups.. */
err = do_lookup(nd, &this, &next); err = do_lookup(nd, &this, &next);
if (err) if (err)