Commit de69e5f4 authored by Nathan Scott's avatar Nathan Scott

[XFS] Add a mechanism for XFS to use the generic quota sync method.

This is now used to issue a delayed allocation flush before reporting
quota, which allows the used space quota report to match reality.
Signed-off-by: default avatarNathan Scott <nathans@sgi.com>
parent a2f8e178
......@@ -118,6 +118,10 @@ static int xqm_quotactl_valid(struct super_block *sb, int type, int cmd, qid_t i
if (!sb->s_qcop->get_xquota)
return -ENOSYS;
break;
case Q_XQUOTASYNC:
if (!sb->s_qcop->quota_sync)
return -ENOSYS;
break;
default:
return -EINVAL;
}
......@@ -128,7 +132,7 @@ static int xqm_quotactl_valid(struct super_block *sb, int type, int cmd, qid_t i
(type == XQM_GRPQUOTA && !in_egroup_p(id))) &&
!capable(CAP_SYS_ADMIN))
return -EPERM;
} else if (cmd != Q_XGETQSTAT) {
} else if (cmd != Q_XGETQSTAT && cmd != Q_XQUOTASYNC) {
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
}
......@@ -322,6 +326,8 @@ static int do_quotactl(struct super_block *sb, int type, int cmd, qid_t id, void
return -EFAULT;
return 0;
}
case Q_XQUOTASYNC:
return sb->s_qcop->quota_sync(sb, type);
/* We never reach here unless validity check is broken */
default:
BUG();
......
......@@ -37,6 +37,7 @@
#define Q_XSETQLIM XQM_CMD(4) /* set disk limits */
#define Q_XGETQSTAT XQM_CMD(5) /* get quota subsystem status */
#define Q_XQUOTARM XQM_CMD(6) /* free disk space used by dquots */
#define Q_XQUOTASYNC XQM_CMD(7) /* delalloc flush, updates dquots */
/*
* fs_disk_quota structure:
......
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