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authorYan, Zheng <zyan@redhat.com>2017-01-29 15:15:47 +0100
committerIlya Dryomov <idryomov@gmail.com>2017-02-20 12:16:07 +0100
commitc1944fedd8c492ce1c1a99ca9064dcc7bafa80e9 (patch)
tree391d043097c793dacc36aae7c9c9e354d80553bb /fs/ceph/super.h
parentceph: make sure flushing inode in proper session's cap_flushing list (diff)
downloadlinux-c1944fedd8c492ce1c1a99ca9064dcc7bafa80e9.tar.xz
linux-c1944fedd8c492ce1c1a99ca9064dcc7bafa80e9.zip
ceph: avoid calling ceph_renew_caps() infinitely
__ceph_caps_mds_wanted() ignores caps from stale session. So the return value of __ceph_caps_mds_wanted() can keep the same across ceph_renew_caps(). This causes try_get_cap_refs() to keep calling ceph_renew_caps(). The fix is ignore the session valid check for the try_get_cap_refs() case. If session is stale, just let the caps requester sleep. Signed-off-by: Yan, Zheng <zyan@redhat.com>
Diffstat (limited to 'fs/ceph/super.h')
-rw-r--r--fs/ceph/super.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/ceph/super.h b/fs/ceph/super.h
index f3f9215abf8e..6477264bfc7e 100644
--- a/fs/ceph/super.h
+++ b/fs/ceph/super.h
@@ -602,7 +602,7 @@ static inline int __ceph_caps_wanted(struct ceph_inode_info *ci)
}
/* what the mds thinks we want */
-extern int __ceph_caps_mds_wanted(struct ceph_inode_info *ci);
+extern int __ceph_caps_mds_wanted(struct ceph_inode_info *ci, bool check);
extern void ceph_caps_init(struct ceph_mds_client *mdsc);
extern void ceph_caps_finalize(struct ceph_mds_client *mdsc);