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ceph: try to check caps immediately after async creating finishes 

We should call the check_caps() again immediately after the async
creating finishes in case the MDS is waiting for caps revocation
to finish.

Link: https://tracker.ceph.com/issues/46904
Signed-off-by: Xiubo Li <xiubli@redhat.com>
Reviewed-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
This commit is contained in:
Xiubo Li 2022-10-17 22:17:35 +08:00 committed by Ilya Dryomov
parent e4b731ccb0
commit 68c62bee9d
3 changed files with 13 additions and 0 deletions
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2
fs/ceph/caps.c
View File

@ -1916,6 +1916,8 @@ void ceph_check_caps(struct ceph_inode_info *ci, int flags)
spin_lock(&ci->i_ceph_lock);
if (ci->i_ceph_flags & CEPH_I_ASYNC_CREATE) {
ci->i_ceph_flags |= CEPH_I_ASYNC_CHECK_CAPS;
/* Don't send messages until we get async create reply */
spin_unlock(&ci->i_ceph_lock);
return;

9
fs/ceph/file.c
View File

@ -534,14 +534,23 @@ static void wake_async_create_waiters(struct inode *inode,
struct ceph_mds_session *session)
{
struct ceph_inode_info *ci = ceph_inode(inode);
bool check_cap = false;
spin_lock(&ci->i_ceph_lock);
if (ci->i_ceph_flags & CEPH_I_ASYNC_CREATE) {
ci->i_ceph_flags &= ~CEPH_I_ASYNC_CREATE;
wake_up_bit(&ci->i_ceph_flags, CEPH_ASYNC_CREATE_BIT);
if (ci->i_ceph_flags & CEPH_I_ASYNC_CHECK_CAPS) {
ci->i_ceph_flags &= ~CEPH_I_ASYNC_CHECK_CAPS;
check_cap = true;
}
}
ceph_kick_flushing_inode_caps(session, ci);
spin_unlock(&ci->i_ceph_lock);
if (check_cap)
ceph_check_caps(ci, CHECK_CAPS_FLUSH);
}
static void ceph_async_create_cb(struct ceph_mds_client *mdsc,

2
fs/ceph/super.h
View File

@ -593,6 +593,8 @@ static inline struct inode *ceph_find_inode(struct super_block *sb,
#define CEPH_ASYNC_CREATE_BIT (12) /* async create in flight for this */
#define CEPH_I_ASYNC_CREATE (1 << CEPH_ASYNC_CREATE_BIT)
#define CEPH_I_SHUTDOWN (1 << 13) /* inode is no longer usable */
#define CEPH_I_ASYNC_CHECK_CAPS (1 << 14) /* check caps immediately after async
creating finishes */
/*
* Masks of ceph inode work.