[PATCH] fs/namei.c: Call to file_permission() under a spinlock in do_lookup_path()

From: Trond Myklebust <[email protected]>

We're presently running lock_kernel() under fs_lock via nfs's ->permission
handler.  That's a ranking bug and sometimes a sleep-in-spinlock bug.  This
problem was introduced in the openat() patchset.

We should not need to hold the current->fs->lock for a codepath that doesn't
use current->fs.

[[email protected]: fix error path]
Signed-off-by: Trond Myklebust <[email protected]>
Cc: Al Viro <[email protected]>
Signed-off-by: Sergey Vlasov <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

0 files changed, 0 insertions, 0 deletions