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authorSteven Whitehouse <swhiteho@redhat.com>2009-09-28 11:52:16 +0100
committerSteven Whitehouse <swhiteho@redhat.com>2009-12-03 11:52:21 +0000
commit113d6b3c99bf30d8083068d00e3c7304d91d4845 (patch)
tree77c46b298307f8ce44998ee50d791ee736cf0faa
parent1e72c0f7c40e665d2ed40014750fdd2fa9968bcf (diff)
GFS2: Add get_xquota support
This adds support for viewing the current GFS2 quota settings via the XFS quota API. The setting of quotas will be addressed in a later patch. Fields which are not supported here are left set to zero. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com> Reviewed-by: Bob Peterson <rpeterso@redhat.com>
-rw-r--r--fs/gfs2/quota.c43
1 files changed, 43 insertions, 0 deletions
diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c
index 33e369f108b..6c5d6aa7d53 100644
--- a/fs/gfs2/quota.c
+++ b/fs/gfs2/quota.c
@@ -1367,8 +1367,51 @@ static int gfs2_quota_get_xstate(struct super_block *sb,
return 0;
}
+static int gfs2_xquota_get(struct super_block *sb, int type, qid_t id,
+ struct fs_disk_quota *fdq)
+{
+ struct gfs2_sbd *sdp = sb->s_fs_info;
+ struct gfs2_quota_lvb *qlvb;
+ struct gfs2_quota_data *qd;
+ struct gfs2_holder q_gh;
+ int error;
+
+ memset(fdq, 0, sizeof(struct fs_disk_quota));
+
+ if (sdp->sd_args.ar_quota == GFS2_QUOTA_OFF)
+ return -ESRCH; /* Crazy XFS error code */
+
+ if (type == USRQUOTA)
+ type = QUOTA_USER;
+ else if (type == GRPQUOTA)
+ type = QUOTA_GROUP;
+ else
+ return -EINVAL;
+
+ error = qd_get(sdp, type, id, &qd);
+ if (error)
+ return error;
+ error = do_glock(qd, FORCE, &q_gh);
+ if (error)
+ goto out;
+
+ qlvb = (struct gfs2_quota_lvb *)qd->qd_gl->gl_lvb;
+ fdq->d_version = FS_DQUOT_VERSION;
+ fdq->d_flags = (type == QUOTA_USER) ? XFS_USER_QUOTA : XFS_GROUP_QUOTA;
+ fdq->d_id = id;
+ fdq->d_blk_hardlimit = be64_to_cpu(qlvb->qb_limit);
+ fdq->d_blk_softlimit = be64_to_cpu(qlvb->qb_warn);
+ fdq->d_bcount = be64_to_cpu(qlvb->qb_value);
+
+ gfs2_glock_dq_uninit(&q_gh);
+out:
+ qd_put(qd);
+ return error;
+}
+
const struct quotactl_ops gfs2_quotactl_ops = {
.quota_sync = gfs2_quota_sync,
.get_xstate = gfs2_quota_get_xstate,
+ .get_xquota = gfs2_xquota_get,
};