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Commit cdce5d6b authored by Trond Myklebust's avatar Trond Myklebust
Browse files

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



 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: default avatarTrond Myklebust <Trond.Myklebust@netapp.com>
parent 6f926b5b

fs/namei.c

+1 −1
Original line number Diff line number Diff line
@@ -763,6 +763,7 @@ static fastcall int __link_path_walk(const char * name, struct nameidata *nd) 
		struct qstr this;

		unsigned int c;



		nd->flags |= LOOKUP_CONTINUE;

		err = exec_permission_lite(inode, nd);

		if (err == -EAGAIN) { 

			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)

				break;

		}

		nd->flags |= LOOKUP_CONTINUE;

		/* This does the actual lookups.. */

		err = do_lookup(nd, &this, &next);

		if (err)