diff options
| author | Luis Henriques <lhenriques@suse.com> | 2019-03-21 10:20:10 +0000 |
|---|---|---|
| committer | Ilya Dryomov <idryomov@gmail.com> | 2019-05-07 19:22:36 +0200 |
| commit | 0c44a8e0fc55f56a70f72e67d7cc5b9341dae7d1 (patch) | |
| tree | 22ff1d529ddff80eb05f19809f37ceda342b900c /fs/ceph/super.h | |
| parent | 3886274adf34a4e38417772e3d1c0b213380004e (diff) | |
ceph: quota: fix quota subdir mounts
The CephFS kernel client does not enforce quotas set in a directory that
isn't visible from the mount point. For example, given the path
'/dir1/dir2', if quotas are set in 'dir1' and the filesystem is mounted with
mount -t ceph <server>:<port>:/dir1/ /mnt
then the client won't be able to access 'dir1' inode, even if 'dir2' belongs
to a quota realm that points to it.
This patch fixes this issue by simply doing an MDS LOOKUPINO operation for
unknown inodes. Any inode reference obtained this way will be added to a
list in ceph_mds_client, and will only be released when the filesystem is
umounted.
Link: https://tracker.ceph.com/issues/38482
Reported-by: Hendrik Peyerl <hpeyerl@plusline.net>
Signed-off-by: Luis Henriques <lhenriques@suse.com>
Reviewed-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Diffstat (limited to 'fs/ceph/super.h')
| -rw-r--r-- | fs/ceph/super.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/ceph/super.h b/fs/ceph/super.h index 976f200164f9..a4b0da31d199 100644 --- a/fs/ceph/super.h +++ b/fs/ceph/super.h @@ -1133,5 +1133,6 @@ extern bool ceph_quota_is_max_bytes_approaching(struct inode *inode, loff_t newlen); extern bool ceph_quota_update_statfs(struct ceph_fs_client *fsc, struct kstatfs *buf); +extern void ceph_cleanup_quotarealms_inodes(struct ceph_mds_client *mdsc); #endif /* _FS_CEPH_SUPER_H */ |