[PATCH 3/3] gfs2: Add support for the Q_XGETQSTATV

[Chandra Seetharaman <sekharan@us.ibm.com>]

For gfs2, add support for Q_XGETQSTATV quotactl command.

Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com>

---
 fs/gfs2/quota.c |   27 +++++++++++++++++++++++++++
 1 files changed, 27 insertions(+), 0 deletions(-)

diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c
index 3768c2f..57f246d 100644
--- a/fs/gfs2/quota.c
+++ b/fs/gfs2/quota.c
@@ -1462,6 +1462,32 @@ static int gfs2_quota_get_xstate(struct super_block *sb,
 	return 0;
 }
 
+static int gfs2_quota_get_xstatev(struct super_block *sb,
+				 struct fs_quota_statv *fqs)
+{
+	struct gfs2_sbd *sdp = sb->s_fs_info;
+
+	switch (sdp->sd_args.ar_quota) {
+	case GFS2_QUOTA_ON:
+		fqs->qs_flags |= (FS_QUOTA_UDQ_ENFD | FS_QUOTA_GDQ_ENFD);
+		/*FALLTHRU*/
+	case GFS2_QUOTA_ACCOUNT:
+		fqs->qs_flags |= (FS_QUOTA_UDQ_ACCT | FS_QUOTA_GDQ_ACCT);
+		break;
+	case GFS2_QUOTA_OFF:
+		break;
+	}
+
+	if (sdp->sd_quota_inode) {
+		fqs->qs_uquota.qfs_ino = GFS2_I(sdp->sd_quota_inode)->i_no_addr;
+		fqs->qs_uquota.qfs_nblks = sdp->sd_quota_inode->i_blocks;
+	}
+	fqs->qs_uquota.qfs_nextents = 1; /* unsupported */
+	fqs->qs_gquota = fqs->qs_uquota; /* its the same inode in both cases */
+	fqs->qs_incoredqs = atomic_read(&qd_lru_count);
+	return 0;
+}
+
 static int gfs2_get_dqblk(struct super_block *sb, struct kqid qid,
 			  struct fs_disk_quota *fdq)
 {
@@ -1604,6 +1630,7 @@ out_put:
 
 const struct quotactl_ops gfs2_quotactl_ops = {
 	.quota_sync     = gfs2_quota_sync,
+	.get_xstatev    = gfs2_quota_get_xstatev,
 	.get_xstate     = gfs2_quota_get_xstate,
 	.get_dqblk	= gfs2_get_dqblk,
 	.set_dqblk	= gfs2_set_dqblk,
-- 
1.7.1

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