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xfs: calculate XFS_TRANS_QM_QUOTAOFF space log reservation at mount time

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Convert the calculation of quota off transaction log space reservation
from runtime to 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 21:27:15 +08:00 committed by Ben Myers
parent 4800104438
commit a1bd955754
4 changed files with 19 additions and 7 deletions
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1
fs/xfs/xfs_mount.h
View File

@ -43,6 +43,7 @@ typedef struct xfs_trans_reservations {
uint tr_qm_sbchange; /* change quota flags */
uint tr_qm_setqlim; /* adjust quota limits */
uint tr_qm_dqalloc; /* allocate quota on disk */
uint tr_qm_quotaoff; /* turn quota off */
} xfs_trans_reservations_t;
#ifndef __KERNEL__

10
fs/xfs/xfs_qm_syscalls.c
View File

@ -672,14 +672,10 @@ xfs_qm_log_quotaoff(
uint oldsbqflag=0;
tp = xfs_trans_alloc(mp, XFS_TRANS_QM_QUOTAOFF);
if ((error = xfs_trans_reserve(tp, 0,
sizeof(xfs_qoff_logitem_t) * 2 +
mp->m_sb.sb_sectsize + 128,
0,
0,
XFS_DEFAULT_LOG_COUNT))) {
error = xfs_trans_reserve(tp, 0, XFS_QM_QUOTAOFF_LOG_RES(mp),
0, 0, XFS_DEFAULT_LOG_COUNT);
if (error)
goto error0;
}
qoffi = xfs_trans_get_qoff_item(tp, NULL, flags & XFS_ALL_QUOTA_ACCT);
xfs_trans_log_quotaoff_item(tp, qoffi);

14
fs/xfs/xfs_trans.c
View File

@ -581,6 +581,19 @@ xfs_calc_qm_dqalloc_reservation(
XFS_FSB_TO_B(mp, XFS_DQUOT_CLUSTER_SIZE_FSB) - 1);
}
/*
* Turning off quotas.
* the xfs_qoff_logitem_t: sizeof(struct xfs_qoff_logitem) * 2
* the superblock for the quota flags: sector size
*/
STATIC uint
xfs_calc_qm_quotaoff_reservation(
struct xfs_mount *mp)
{
return sizeof(struct xfs_qoff_logitem) * 2 +
xfs_calc_buf_res(1, mp->m_sb.sb_sectsize);
}
/*
* Initialize the precomputed transaction reservation values
* in the mount structure.
@ -615,6 +628,7 @@ xfs_trans_init(
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);
resp->tr_qm_quotaoff = xfs_calc_qm_quotaoff_reservation(mp);
}
/*

1
fs/xfs/xfs_trans.h
View File

@ -265,6 +265,7 @@ struct xfs_log_item_desc {
#define XFS_QM_SBCHANGE_LOG_RES(mp) ((mp)->m_reservations.tr_qm_sbchange)
#define XFS_QM_SETQLIM_LOG_RES(mp) ((mp)->m_reservations.tr_qm_setqlim)
#define XFS_QM_DQALLOC_LOG_RES(mp) ((mp)->m_reservations.tr_qm_dqalloc)
#define XFS_QM_QUOTAOFF_LOG_RES(mp) ((mp)->m_reservations.tr_qm_quotaoff)
/*
* Various log count values.