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| author | Xiubo Li <xiubli@redhat.com> | 2022-04-21 11:26:40 +0800 |
|---|---|---|
| committer | Ilya Dryomov <idryomov@gmail.com> | 2022-05-25 20:45:14 +0200 |
| commit | 5eed80fba65cd707075892450bc5d6bd464862a0 (patch) | |
| tree | d32223faa79185ffbee71c6420bcdc0abd996746 /fs/ceph/addr.c | |
| parent | f7a2d0688a3b2bb4769402b4c962f54f7b0fc23c (diff) | |
| download | linux-5eed80fba65cd707075892450bc5d6bd464862a0.tar.bz2 | |
ceph: try to choose the auth MDS if possible for getattr
If any 'x' caps is issued we can just choose the auth MDS instead
of the random replica MDSes. Because only when the Locker is in
LOCK_EXEC state will the loner client could get the 'x' caps. And
if we send the getattr requests to any replica MDS it must auth pin
and tries to rdlock from the auth MDS, and then the auth MDS need
to do the Locker state transition to LOCK_SYNC. And after that the
lock state will change back.
This cost much when doing the Locker state transition and usually
will need to revoke caps from clients.
URL: https://tracker.ceph.com/issues/55240
Signed-off-by: Xiubo Li <xiubli@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Diffstat (limited to 'fs/ceph/addr.c')
| -rw-r--r-- | fs/ceph/addr.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c index 69578cc3749d..c25a33dd6284 100644 --- a/fs/ceph/addr.c +++ b/fs/ceph/addr.c @@ -256,6 +256,7 @@ static bool ceph_netfs_issue_op_inline(struct netfs_io_subrequest *subreq) struct iov_iter iter; ssize_t err = 0; size_t len; + int mode; __set_bit(NETFS_SREQ_CLEAR_TAIL, &subreq->flags); __clear_bit(NETFS_SREQ_COPY_TO_CACHE, &subreq->flags); @@ -264,7 +265,8 @@ static bool ceph_netfs_issue_op_inline(struct netfs_io_subrequest *subreq) goto out; /* We need to fetch the inline data. */ - req = ceph_mdsc_create_request(mdsc, CEPH_MDS_OP_GETATTR, USE_ANY_MDS); + mode = ceph_try_to_choose_auth_mds(inode, CEPH_STAT_CAP_INLINE_DATA); + req = ceph_mdsc_create_request(mdsc, CEPH_MDS_OP_GETATTR, mode); if (IS_ERR(req)) { err = PTR_ERR(req); goto out; |