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| author | Jeff Layton <jlayton@kernel.org> | 2019-05-07 15:20:54 +0200 |
|---|---|---|
| committer | Ilya Dryomov <idryomov@gmail.com> | 2019-05-07 19:43:05 +0200 |
| commit | 00abf69dd24f4444d185982379c5cc3bb7b6d1fc (patch) | |
| tree | 831e155862349aa631ef1cf0b17bde23fe190eff /fs/ceph/super.c | |
| parent | ceph: fix unaligned access in ceph_send_cap_releases (diff) | |
| download | linux-00abf69dd24f4444d185982379c5cc3bb7b6d1fc.tar.xz linux-00abf69dd24f4444d185982379c5cc3bb7b6d1fc.zip | |
ceph: flush dirty inodes before proceeding with remount
xfstest generic/452 was triggering a "Busy inodes after umount" warning.
ceph was allowing the mount to go read-only without first flushing out
dirty inodes in the cache. Ensure we sync out the filesystem before
allowing a remount to proceed.
Cc: stable@vger.kernel.org
Link: http://tracker.ceph.com/issues/39571
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Diffstat (limited to 'fs/ceph/super.c')
| -rw-r--r-- | fs/ceph/super.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/ceph/super.c b/fs/ceph/super.c index 6d5bb2f74612..01113c86e469 100644 --- a/fs/ceph/super.c +++ b/fs/ceph/super.c @@ -845,6 +845,12 @@ static void ceph_umount_begin(struct super_block *sb) return; } +static int ceph_remount(struct super_block *sb, int *flags, char *data) +{ + sync_filesystem(sb); + return 0; +} + static const struct super_operations ceph_super_ops = { .alloc_inode = ceph_alloc_inode, .destroy_inode = ceph_destroy_inode, @@ -852,6 +858,7 @@ static const struct super_operations ceph_super_ops = { .drop_inode = ceph_drop_inode, .sync_fs = ceph_sync_fs, .put_super = ceph_put_super, + .remount_fs = ceph_remount, .show_options = ceph_show_options, .statfs = ceph_statfs, .umount_begin = ceph_umount_begin, |