From a7bd794a0f489a66ad595f2bcab0eac8f232e409 Mon Sep 17 00:00:00 2001 From: Jeff Liu Date: Mon, 28 Jan 2013 21:27:25 +0800 Subject: xfs: introduce XFS_SB_LOG_RES() for transactions that modify sb on disk Introduce a new transaction space reservation XFS_SB_LOG_RES() for those transactions that need to modify the superblock on disk. Signed-off-by: Jie Liu CC: Dave Chinner Reviewed-by: Mark Tinguely Signed-off-by: Ben Myers --- fs/xfs/xfs_trans.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'fs/xfs/xfs_trans.c') diff --git a/fs/xfs/xfs_trans.c b/fs/xfs/xfs_trans.c index 84643fa5e465..72da2aa08421 100644 --- a/fs/xfs/xfs_trans.c +++ b/fs/xfs/xfs_trans.c @@ -605,6 +605,17 @@ xfs_calc_qm_quotaoff_end_reservation( return sizeof(struct xfs_qoff_logitem) * 2; } +/* + * Syncing the incore super block changes to disk. + * the super block to reflect the changes: sector size + */ +STATIC uint +xfs_calc_sb_reservation( + struct xfs_mount *mp) +{ + return xfs_calc_buf_res(1, mp->m_sb.sb_sectsize); +} + /* * Initialize the precomputed transaction reservation values * in the mount structure. @@ -641,6 +652,7 @@ xfs_trans_init( resp->tr_qm_dqalloc = xfs_calc_qm_dqalloc_reservation(mp); resp->tr_qm_quotaoff = xfs_calc_qm_quotaoff_reservation(mp); resp->tr_qm_equotaoff = xfs_calc_qm_quotaoff_end_reservation(mp); + resp->tr_sb = xfs_calc_sb_reservation(mp); } /* -- cgit v1.2.3