ceph: queue vmtruncate if necessary when handing cap grant/revoke
cap grant/revoke message from non-auth MDS can update inode's size
and truncate_seq/truncate_size. (the message arrives before auth
MDS's cap trunc message)
Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index c561b62..de39a03 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -2418,11 +2418,12 @@
u64 max_size = le64_to_cpu(grant->max_size);
struct timespec mtime, atime, ctime;
int check_caps = 0;
- int wake = 0;
- int writeback = 0;
- int queue_invalidate = 0;
- int deleted_inode = 0;
- int queue_revalidate = 0;
+ bool wake = 0;
+ bool writeback = 0;
+ bool queue_trunc = 0;
+ bool queue_invalidate = 0;
+ bool queue_revalidate = 0;
+ bool deleted_inode = 0;
dout("handle_cap_grant inode %p cap %p mds%d seq %d %s\n",
inode, cap, mds, seq, ceph_cap_string(newcaps));
@@ -2512,9 +2513,10 @@
queue_revalidate = 1;
/* size/ctime/mtime/atime? */
- ceph_fill_file_size(inode, issued,
- le32_to_cpu(grant->truncate_seq),
- le64_to_cpu(grant->truncate_size), size);
+ queue_trunc = ceph_fill_file_size(inode, issued,
+ le32_to_cpu(grant->truncate_seq),
+ le64_to_cpu(grant->truncate_size),
+ size);
ceph_decode_timespec(&mtime, &grant->mtime);
ceph_decode_timespec(&atime, &grant->atime);
ceph_decode_timespec(&ctime, &grant->ctime);
@@ -2595,6 +2597,12 @@
spin_unlock(&ci->i_ceph_lock);
+ if (queue_trunc) {
+ ceph_queue_vmtruncate(inode);
+ ceph_queue_revalidate(inode);
+ } else if (queue_revalidate)
+ ceph_queue_revalidate(inode);
+
if (writeback)
/*
* queue inode for writeback: we can't actually call
@@ -2606,8 +2614,6 @@
ceph_queue_invalidate(inode);
if (deleted_inode)
invalidate_aliases(inode);
- if (queue_revalidate)
- ceph_queue_revalidate(inode);
if (wake)
wake_up_all(&ci->i_cap_wq);