ceph: quota: support for ceph.quota.max_files
authorLuis Henriques <lhenriques@suse.com>
Fri, 5 Jan 2018 10:47:19 +0000 (10:47 +0000)
committerIlya Dryomov <idryomov@gmail.com>
Mon, 2 Apr 2018 09:17:51 +0000 (11:17 +0200)
commitb7a2921765cf796280baf653a52b22b52e0ba266
treea7c6aad0d8aac1da1789b09c37a1852ef65c9c5c
parentfb18a57568c2b84cd611e242c0f6fa97b45e4907
ceph: quota: support for ceph.quota.max_files

This patch adds support for the max_files quota.  It hooks into all the
ceph functions that add new filesystem objects that need to be checked
against the quota limits.  When these limits are hit, -EDQUOT is returned.

Note that we're not checking quotas on ceph_link().  ceph_link doesn't
really create a new inode,  and since the MDS doesn't update the directory
statistics when a new (hard) link is created (only with symlinks), they
are not accounted as a new file.

Signed-off-by: Luis Henriques <lhenriques@suse.com>
Reviewed-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
fs/ceph/dir.c
fs/ceph/file.c
fs/ceph/quota.c
fs/ceph/super.h