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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>
This commit is contained in:
Yan, Zheng 2014-04-11 10:18:07 +08:00
parent 979d4c1895
commit c6bcda6f52
1 changed files with 16 additions and 10 deletions
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26
fs/ceph/caps.c
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@ -2418,11 +2418,12 @@ static void handle_cap_grant(struct inode *inode, struct ceph_mds_caps *grant,
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 @@ static void handle_cap_grant(struct inode *inode, struct ceph_mds_caps *grant,
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 @@ static void handle_cap_grant(struct inode *inode, struct ceph_mds_caps *grant,
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 @@ static void handle_cap_grant(struct inode *inode, struct ceph_mds_caps *grant,
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);