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| author |   Yan, Zheng <zyan@redhat.com> | 2015-06-09 15:48:57 +0800 |
|---|---|---|
| committer |   Ilya Dryomov <idryomov@gmail.com> | 2015-06-25 11:49:30 +0300 |
| commit | 553adfd941f8ca622965ef809553d918ea039929 (patch) | |
| tree | 26ebb1577287a48cb9bcea96e8197ef1ac3b72bc /fs/ceph/inode.c | |
| parent | libceph: fix wrong name "Ceph filesystem for Linux" (diff) | |
| download | linux-dev-553adfd941f8ca622965ef809553d918ea039929.tar.xz linux-dev-553adfd941f8ca622965ef809553d918ea039929.zip | |
ceph: track pending caps flushing accurately
Previously we do not trace accurate TID for flushing caps. when
MDS failovers, we have no choice but to re-send all flushing caps
with a new TID. This can cause problem because MDS can has already
flushed some caps and has issued the same caps to other client.
The re-sent cap flush has a new TID, which makes MDS unable to
detect if it has already processed the cap flush.
This patch adds code to track pending caps flushing accurately.
When re-sending cap flush is needed, we use its original flush
TID.
Signed-off-by: Yan, Zheng <zyan@redhat.com>
Diffstat (limited to 'fs/ceph/inode.c')
| -rw-r--r-- | fs/ceph/inode.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c index 1c991df276c9..6d3f19db8c8a 100644 --- a/fs/ceph/inode.c +++ b/fs/ceph/inode.c @@ -417,8 +417,7 @@ struct inode *ceph_alloc_inode(struct super_block *sb) INIT_LIST_HEAD(&ci->i_dirty_item); INIT_LIST_HEAD(&ci->i_flushing_item); ci->i_cap_flush_seq = 0; - ci->i_cap_flush_last_tid = 0; - memset(&ci->i_cap_flush_tid, 0, sizeof(ci->i_cap_flush_tid)); + ci->i_cap_flush_tree = RB_ROOT; init_waitqueue_head(&ci->i_cap_wq); ci->i_hold_caps_min = 0; ci->i_hold_caps_max = 0; |