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| author | Junxiao Bi <junxiao.bi@oracle.com> | 2020-06-25 20:29:30 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-06-26 00:27:36 -0700 |
| commit | 4cd9973f9ff69e37dd0ba2bd6e6423f8179c329a (patch) | |
| tree | f547f126b81b96769cf3de543dc9ee364a025ec4 /fs/ocfs2/ocfs2.h | |
| parent | fd7af71be54271a9f03b2e6f63e4b3ac1ecd113d (diff) | |
| download | linux-4cd9973f9ff69e37dd0ba2bd6e6423f8179c329a.tar.gz | |
ocfs2: avoid inode removal while nfsd is accessing it
Patch series "ocfs2: fix nfsd over ocfs2 issues", v2.
This is a series of patches to fix issues on nfsd over ocfs2. patch 1
is to avoid inode removed while nfsd access it patch 2 & 3 is to fix a
panic issue.
This patch (of 4):
When nfsd is getting file dentry using handle or parent dentry of some
dentry, one cluster lock is used to avoid inode removed from other node,
but it still could be removed from local node, so use a rw lock to avoid
this.
Link: http://lkml.kernel.org/r/20200616183829.87211-1-junxiao.bi@oracle.com
Link: http://lkml.kernel.org/r/20200616183829.87211-2-junxiao.bi@oracle.com
Signed-off-by: Junxiao Bi <junxiao.bi@oracle.com>
Reviewed-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Cc: Changwei Ge <gechangwei@live.cn>
Cc: Gang He <ghe@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Jun Piao <piaojun@huawei.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/ocfs2/ocfs2.h')
| -rw-r--r-- | fs/ocfs2/ocfs2.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/ocfs2/ocfs2.h b/fs/ocfs2/ocfs2.h index ee5d9851621253..2dd71d626196d9 100644 --- a/fs/ocfs2/ocfs2.h +++ b/fs/ocfs2/ocfs2.h @@ -395,6 +395,7 @@ struct ocfs2_super struct ocfs2_lock_res osb_super_lockres; struct ocfs2_lock_res osb_rename_lockres; struct ocfs2_lock_res osb_nfs_sync_lockres; + struct rw_semaphore nfs_sync_rwlock; struct ocfs2_lock_res osb_trim_fs_lockres; struct mutex obs_trim_fs_mutex; struct ocfs2_dlm_debug *osb_dlm_debug; |