From de69e5f44ecbf1d9faca4f473f4210473d26cd41 Mon Sep 17 00:00:00 2001 From: Nathan Scott Date: Thu, 3 Nov 2005 13:53:34 +1100 Subject: [PATCH] [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: Nathan Scott --- fs/quota.c | 8 +++++++- include/linux/dqblk_xfs.h | 1 + 2 files changed, 8 insertions(+), 1 deletion(-) diff --git a/fs/quota.c b/fs/quota.c index f5d1cff..1df7832 100644 --- a/fs/quota.c +++ b/fs/quota.c @@ -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(); diff --git a/include/linux/dqblk_xfs.h b/include/linux/dqblk_xfs.h index 6ad85bb..2fda1b2 100644 --- a/include/linux/dqblk_xfs.h +++ b/include/linux/dqblk_xfs.h @@ -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: -- 2.7.4