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xfs: calculate XFS_TRANS_QM_DQALLOC space log reservation at mount time

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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>
This commit is contained in:
Jeff Liu
2013-01-28 21:27:04 +08:00
committed by Ben Myers
parent f0f2df94fa
commit 4800104438
4 changed files with 20 additions and 9 deletions
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15
fs/xfs/xfs_trans.c
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@@ -567,6 +567,20 @@ xfs_calc_qm_setqlim_reservation(
return xfs_calc_buf_res(1, sizeof(struct xfs_disk_dquot));
}
/*
* 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);
}
/*