From: "Yan, Zheng" <zyan@redhat.com>
Date: Fri, 11 May 2018 17:12:02 +0800
Subject: ceph: abort osd requests on force umount
Git-commit: 12b69d5f6fe4064147ddb7e7ea2d4fa4aea3eab5
Patch-mainline: v4.18-rc1
References: FATE#324714
This avoid force umount waiting on page writeback:
io_schedule+0xd/0x30
wait_on_page_bit_common+0xc6/0x130
__filemap_fdatawait_range+0xbd/0x100
filemap_fdatawait_keep_errors+0x15/0x40
sync_inodes_sb+0x1cf/0x240
sync_filesystem+0x52/0x90
generic_shutdown_super+0x1d/0x110
ceph_kill_sb+0x28/0x80 [ceph]
deactivate_locked_super+0x35/0x60
cleanup_mnt+0x36/0x70
task_work_run+0x79/0xa0
exit_to_usermode_loop+0x62/0x70
do_syscall_64+0xdb/0xf0
entry_SYSCALL_64_after_hwframe+0x44/0xa9
0xffffffffffffffff
Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Acked-by: Luis Henriques <lhenriques@suse.com>
---
fs/ceph/super.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/fs/ceph/super.c b/fs/ceph/super.c
index 3c1155803444..40664e13cc0f 100644
--- a/fs/ceph/super.c
+++ b/fs/ceph/super.c
@@ -793,6 +793,7 @@ static void ceph_umount_begin(struct super_block *sb)
if (!fsc)
return;
fsc->mount_state = CEPH_MOUNT_SHUTDOWN;
+ ceph_osdc_abort_requests(&fsc->client->osdc, -EIO);
ceph_mdsc_force_umount(fsc->mdsc);
return;
}