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[3.13.y-ckt,stable] Patch "quota: Store maximum space limit in bytes" has been added to staging queue

Message ID 1427311509-24553-1-git-send-email-kamal@canonical.com
State New
Headers show

Commit Message

Kamal Mostafa March 25, 2015, 7:25 p.m. UTC
This is a note to let you know that I have just added a patch titled

    quota: Store maximum space limit in bytes

to the linux-3.13.y-queue branch of the 3.13.y-ckt extended stable tree 
which can be found at:

 http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.13.y-queue

This patch is scheduled to be released in version 3.13.y-ckt18.

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.13.y-ckt tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Kamal

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From 041ae70d5fda5ab590301da33437f4f1600d6d5f Mon Sep 17 00:00:00 2001
From: Jan Kara <jack@suse.cz>
Date: Thu, 9 Oct 2014 16:54:13 +0200
Subject: quota: Store maximum space limit in bytes

commit b10a08194c2b615955dfab2300331a90ae9344c7 upstream.

Currently maximum space limit quota format supports is in blocks however
since we store space limits in bytes, this is somewhat confusing. So
store the maximum limit in bytes as well. Also rename the field to match
the new unit and related inode field to match the new naming scheme.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 fs/ocfs2/quota_local.c |  4 ++--
 fs/quota/dquot.c       | 18 ++++--------------
 fs/quota/quota_v1.c    |  4 ++--
 fs/quota/quota_v2.c    | 10 +++++-----
 include/linux/quota.h  |  4 ++--
 5 files changed, 15 insertions(+), 25 deletions(-)

--
1.9.1
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Patch

diff --git a/fs/ocfs2/quota_local.c b/fs/ocfs2/quota_local.c
index 2001862..068b525 100644
--- a/fs/ocfs2/quota_local.c
+++ b/fs/ocfs2/quota_local.c
@@ -700,8 +700,8 @@  static int ocfs2_local_read_info(struct super_block *sb, int type)
 	/* We don't need the lock and we have to acquire quota file locks
 	 * which will later depend on this lock */
 	mutex_unlock(&sb_dqopt(sb)->dqio_mutex);
-	info->dqi_maxblimit = 0x7fffffffffffffffLL;
-	info->dqi_maxilimit = 0x7fffffffffffffffLL;
+	info->dqi_max_spc_limit = 0x7fffffffffffffffLL;
+	info->dqi_max_ino_limit = 0x7fffffffffffffffLL;
 	oinfo = kmalloc(sizeof(struct ocfs2_mem_dqinfo), GFP_NOFS);
 	if (!oinfo) {
 		mlog(ML_ERROR, "failed to allocate memory for ocfs2 quota"
diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
index 274e310..064e9eb 100644
--- a/fs/quota/dquot.c
+++ b/fs/quota/dquot.c
@@ -2396,16 +2396,6 @@  out:
 }
 EXPORT_SYMBOL(dquot_quota_on_mount);

-static inline qsize_t qbtos(qsize_t blocks)
-{
-	return blocks << QIF_DQBLKSIZE_BITS;
-}
-
-static inline qsize_t stoqb(qsize_t space)
-{
-	return (space + QIF_DQBLKSIZE - 1) >> QIF_DQBLKSIZE_BITS;
-}
-
 /* Generic routine for getting common part of quota structure */
 static void do_get_dqblk(struct dquot *dquot, struct qc_dqblk *di)
 {
@@ -2455,13 +2445,13 @@  static int do_set_dqblk(struct dquot *dquot, struct qc_dqblk *di)
 		return -EINVAL;

 	if (((di->d_fieldmask & QC_SPC_SOFT) &&
-	     stoqb(di->d_spc_softlimit) > dqi->dqi_maxblimit) ||
+	     di->d_spc_softlimit > dqi->dqi_max_spc_limit) ||
 	    ((di->d_fieldmask & QC_SPC_HARD) &&
-	     stoqb(di->d_spc_hardlimit) > dqi->dqi_maxblimit) ||
+	     di->d_spc_hardlimit > dqi->dqi_max_spc_limit) ||
 	    ((di->d_fieldmask & QC_INO_SOFT) &&
-	     (di->d_ino_softlimit > dqi->dqi_maxilimit)) ||
+	     (di->d_ino_softlimit > dqi->dqi_max_ino_limit)) ||
 	    ((di->d_fieldmask & QC_INO_HARD) &&
-	     (di->d_ino_hardlimit > dqi->dqi_maxilimit)))
+	     (di->d_ino_hardlimit > dqi->dqi_max_ino_limit)))
 		return -ERANGE;

 	spin_lock(&dq_data_lock);
diff --git a/fs/quota/quota_v1.c b/fs/quota/quota_v1.c
index 469c684..8fe79be 100644
--- a/fs/quota/quota_v1.c
+++ b/fs/quota/quota_v1.c
@@ -169,8 +169,8 @@  static int v1_read_file_info(struct super_block *sb, int type)
 	}
 	ret = 0;
 	/* limits are stored as unsigned 32-bit data */
-	dqopt->info[type].dqi_maxblimit = 0xffffffff;
-	dqopt->info[type].dqi_maxilimit = 0xffffffff;
+	dqopt->info[type].dqi_max_spc_limit = 0xffffffffULL << QUOTABLOCK_BITS;
+	dqopt->info[type].dqi_max_ino_limit = 0xffffffff;
 	dqopt->info[type].dqi_igrace =
 			dqblk.dqb_itime ? dqblk.dqb_itime : MAX_IQ_TIME;
 	dqopt->info[type].dqi_bgrace =
diff --git a/fs/quota/quota_v2.c b/fs/quota/quota_v2.c
index 02751ec..d1a8054 100644
--- a/fs/quota/quota_v2.c
+++ b/fs/quota/quota_v2.c
@@ -117,12 +117,12 @@  static int v2_read_file_info(struct super_block *sb, int type)
 	qinfo = info->dqi_priv;
 	if (version == 0) {
 		/* limits are stored as unsigned 32-bit data */
-		info->dqi_maxblimit = 0xffffffff;
-		info->dqi_maxilimit = 0xffffffff;
+		info->dqi_max_spc_limit = 0xffffffffULL << QUOTABLOCK_BITS;
+		info->dqi_max_ino_limit = 0xffffffff;
 	} else {
-		/* used space is stored as unsigned 64-bit value */
-		info->dqi_maxblimit = 0xffffffffffffffffULL;	/* 2^64-1 */
-		info->dqi_maxilimit = 0xffffffffffffffffULL;
+		/* used space is stored as unsigned 64-bit value in bytes */
+		info->dqi_max_spc_limit = 0xffffffffffffffffULL; /* 2^64-1 */
+		info->dqi_max_ino_limit = 0xffffffffffffffffULL;
 	}
 	info->dqi_bgrace = le32_to_cpu(dinfo.dqi_bgrace);
 	info->dqi_igrace = le32_to_cpu(dinfo.dqi_igrace);
diff --git a/include/linux/quota.h b/include/linux/quota.h
index bc395be..a1066e9 100644
--- a/include/linux/quota.h
+++ b/include/linux/quota.h
@@ -211,8 +211,8 @@  struct mem_dqinfo {
 	unsigned long dqi_flags;
 	unsigned int dqi_bgrace;
 	unsigned int dqi_igrace;
-	qsize_t dqi_maxblimit;
-	qsize_t dqi_maxilimit;
+	qsize_t dqi_max_spc_limit;
+	qsize_t dqi_max_ino_limit;
 	void *dqi_priv;
 };