diff options
| author | Chun Xu <chunx@nvidia.com> | 2014-05-16 19:18:28 +0800 |
|---|---|---|
| committer | Mandar Padmawar <mpadmawar@nvidia.com> | 2014-06-24 04:48:21 -0700 |
| commit | 4fb642709124d0c8f849e624fda2860c99d1ede4 (patch) | |
| tree | 9328151dc3b6c693da3e7f85ca5c7ab1f1bfdc6d /fs | |
| parent | ff79091c19d303e41e94b35bc0fe85cdd2289cf3 (diff) | |
active-standby: check inode's i_private
Check whether inode's i_private fild has been changed
before saving current task_strucct pointer to this field.
Bug 200000044
Change-Id: I4a09caf016193801c5841b82e024f8ef41a3763f
Reviewed-on: http://git-master/r/411287
(cherry picked from commit 3fef90e08330c9ed11f84adf8f98492d3b917ddb)
Reviewed-on: http://git-master/r/414844
(cherry picked from commit 3ea271e7ca33bf281a3fba3580865f2c1d85ae0c)
Signed-off-by: Chun Xu <chunx@nvidia.com>
Reviewed-on: http://git-master/r/427088
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>
GVS: Gerrit_Virtual_Submit
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/eventpoll.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/eventpoll.c b/fs/eventpoll.c index ab2157896d1d..047accde593d 100644 --- a/fs/eventpoll.c +++ b/fs/eventpoll.c @@ -9,7 +9,7 @@ * * Davide Libenzi <davidel@xmailserver.org> * - * Copyright (c) 2013, NVIDIA CORPORATION. All rights reserved. + * Copyright (c) 2013-2014, NVIDIA CORPORATION. All rights reserved. * */ @@ -1290,7 +1290,9 @@ static int ep_insert(struct eventpoll *ep, struct epoll_event *event, spin_lock(&tfile->f_lock); list_add_tail(&epi->fllink, &tfile->f_ep_links); spin_unlock(&tfile->f_lock); - tfile->f_path.dentry->d_inode->i_private = get_thread_process(current); + if (tfile->f_path.dentry->d_inode->i_private == NULL) + tfile->f_path.dentry->d_inode->i_private = + get_thread_process(current); /* * Add the current item to the RB tree. All RB tree operations are |