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authorJeff Liu <jeff.liu@oracle.com>2013-01-28 21:27:04 +0800
committerBen Myers <bpm@sgi.com>2013-02-01 14:43:51 -0600
commit4800104438a4467ffa5ae1e51d5a59c0f64e5f9a (patch)
tree39472a1139ea146b45b537b924e166fc7dc9a00d /fs/xfs/xfs_trans.c
parentf0f2df94faca43fd26f85af7e83df240777c8c37 (diff)
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xfs: calculate XFS_TRANS_QM_DQALLOC space log reservation at mount time
The disk quota allocation log space reservation is calcuated at runtime, this patch does it at mount time. Signed-off-by: Jie Liu <jeff.liu@oracle.com> CC: Dave Chinner <david@fromorbit.com> Reviewed-by: Mark Tinguely <tinguely@sgi.com> Signed-off-by: Ben Myers <bpm@sgi.com>
Diffstat (limited to 'fs/xfs/xfs_trans.c')
-rw-r--r--fs/xfs/xfs_trans.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/fs/xfs/xfs_trans.c b/fs/xfs/xfs_trans.c
index 1838850de145..6dd2c043efcd 100644
--- a/fs/xfs/xfs_trans.c
+++ b/fs/xfs/xfs_trans.c
@@ -568,6 +568,20 @@ xfs_calc_qm_setqlim_reservation(
}
/*
+ * Allocating quota on disk if needed.
+ * the write transaction log space: XFS_WRITE_LOG_RES(mp)
+ * the unit of quota allocation: one system block size
+ */
+STATIC uint
+xfs_calc_qm_dqalloc_reservation(
+ struct xfs_mount *mp)
+{
+ return XFS_WRITE_LOG_RES(mp) +
+ xfs_calc_buf_res(1,
+ XFS_FSB_TO_B(mp, XFS_DQUOT_CLUSTER_SIZE_FSB) - 1);
+}
+
+/*
* Initialize the precomputed transaction reservation values
* in the mount structure.
*/
@@ -600,6 +614,7 @@ xfs_trans_init(
resp->tr_growrtfree = xfs_calc_growrtfree_reservation(mp);
resp->tr_qm_sbchange = xfs_calc_qm_sbchange_reservation(mp);
resp->tr_qm_setqlim = xfs_calc_qm_setqlim_reservation(mp);
+ resp->tr_qm_dqalloc = xfs_calc_qm_dqalloc_reservation(mp);
}
/*
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