From: Jeff Layton <jlayton@kernel.org>
Date: Mon, 8 Jul 2019 12:27:57 -0400
Subject: ceph: have __mark_caps_flushing return flush_tid
Git-commit: 9f3345d8ec5e226d116ddb7fb86ee71a08a3b9a7
Patch-mainline: v5.4-rc1
References: jsc#SES-1134
Currently, this function returns ci->i_dirty_caps, but the callers have
to check that that isn't 0 before calling this function. Have the
callers grab that value directly out of the inode, and have
__mark_caps_flushing return the flush_tid instead.
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Acked-by: Luis Henriques <lhenriques@suse.com>
---
fs/ceph/caps.c | 20 ++++++++++----------
1 file changed, 10 insertions(+), 10 deletions(-)
diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index 2563f42445e6..6b8300d72cac 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -1722,11 +1722,11 @@ static bool __finish_cap_flush(struct ceph_mds_client *mdsc,
* Add dirty inode to the flushing list. Assigned a seq number so we
* can wait for caps to flush without starving.
*
- * Called under i_ceph_lock.
+ * Called under i_ceph_lock. Returns the flush tid.
*/
-static int __mark_caps_flushing(struct inode *inode,
+static u64 __mark_caps_flushing(struct inode *inode,
struct ceph_mds_session *session, bool wake,
- u64 *flush_tid, u64 *oldest_flush_tid)
+ u64 *oldest_flush_tid)
{
struct ceph_mds_client *mdsc = ceph_sb_to_client(inode->i_sb)->mdsc;
struct ceph_inode_info *ci = ceph_inode(inode);
@@ -1765,8 +1765,7 @@ static int __mark_caps_flushing(struct inode *inode,
list_add_tail(&cf->i_list, &ci->i_cap_flush_list);
- *flush_tid = cf->tid;
- return flushing;
+ return cf->tid;
}
/*
@@ -2056,9 +2055,9 @@ void ceph_check_caps(struct ceph_inode_info *ci, int flags,
}
if (cap == ci->i_auth_cap && ci->i_dirty_caps) {
- flushing = __mark_caps_flushing(inode, session, false,
- &flush_tid,
- &oldest_flush_tid);
+ flushing = ci->i_dirty_caps;
+ flush_tid = __mark_caps_flushing(inode, session, false,
+ &oldest_flush_tid);
} else {
flushing = 0;
flush_tid = 0;
@@ -2137,8 +2136,9 @@ static int try_flush_caps(struct inode *inode, u64 *ptid)
goto retry_locked;
}
- flushing = __mark_caps_flushing(inode, session, true,
- &flush_tid, &oldest_flush_tid);
+ flushing = ci->i_dirty_caps;
+ flush_tid = __mark_caps_flushing(inode, session, true,
+ &oldest_flush_tid);
/* __send_cap drops i_ceph_lock */
delayed = __send_cap(mdsc, cap, CEPH_CAP_OP_FLUSH,