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From: Dongsheng Yang <yangds.fnst@cn.fujitsu.com>
To: <viro@ZenIV.linux.org.uk>, <jack@suse.cz>, <dedekind1@gmail.com>,
	<richard.weinberger@gmail.com>
Cc: linux-fsdevel@vger.kernel.org,
	Dongsheng Yang <yangds.fnst@cn.fujitsu.com>,
	linux-mtd@lists.infradead.org
Subject: [PATCH v3 11/39] fs: quota: replace opened calling of ->sync_fs with sync_filesystem
Date: Tue, 15 Sep 2015 17:02:06 +0800	[thread overview]
Message-ID: <1442307754-13233-12-git-send-email-yangds.fnst@cn.fujitsu.com> (raw)
In-Reply-To: <1442307754-13233-1-git-send-email-yangds.fnst@cn.fujitsu.com>

There are only two places in whole kernel to call ->sync_fs directly. It
will sync fs even in read-only mode. It's not a good idea and some filesystem
would warn out if you are syncing in read-only mode. But sync_filesystem()
does filter this case out. Let's call sync_filesystem() here instead.

Signed-off-by: Dongsheng Yang <yangds.fnst@cn.fujitsu.com>
---
 fs/quota/dquot.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
index 140397a..0bda7fa 100644
--- a/fs/quota/dquot.c
+++ b/fs/quota/dquot.c
@@ -668,8 +668,7 @@ int dquot_quota_sync(struct super_block *sb, int type)
 	/* This is not very clever (and fast) but currently I don't know about
 	 * any other simple way of getting quota data to disk and we must get
 	 * them there for userspace to be visible... */
-	if (sb->s_op->sync_fs)
-		sb->s_op->sync_fs(sb, 1);
+	sync_filesystem(sb);
 	sync_blockdev(sb->s_bdev);
 
 	/*
@@ -2043,7 +2042,7 @@ int dquot_disable(struct super_block *sb, int type, unsigned int flags)
 	/*
 	 * Skip everything if there's nothing to do. We have to do this because
 	 * sometimes we are called when fill_super() failed and calling
-	 * sync_fs() in such cases does no good.
+	 * sync_filesystem() in such cases does no good.
 	 */
 	if (!sb_any_quota_loaded(sb)) {
 		mutex_unlock(&dqopt->dqonoff_mutex);
@@ -2110,8 +2109,7 @@ int dquot_disable(struct super_block *sb, int type, unsigned int flags)
 
 	/* Sync the superblock so that buffers with quota data are written to
 	 * disk (and so userspace sees correct data afterwards). */
-	if (sb->s_op->sync_fs)
-		sb->s_op->sync_fs(sb, 1);
+	sync_filesystem(sb);
 	sync_blockdev(sb->s_bdev);
 	/* Now the quota files are just ordinary files and we can set the
 	 * inode flags back. Moreover we discard the pagecache so that
-- 
1.8.4.2


______________________________________________________
Linux MTD discussion mailing list
http://lists.infradead.org/mailman/listinfo/linux-mtd/

WARNING: multiple messages have this Message-ID (diff)
From: Dongsheng Yang <yangds.fnst@cn.fujitsu.com>
To: <viro@ZenIV.linux.org.uk>, <jack@suse.cz>, <dedekind1@gmail.com>,
	<richard.weinberger@gmail.com>
Cc: <linux-mtd@lists.infradead.org>, <linux-fsdevel@vger.kernel.org>,
	Dongsheng Yang <yangds.fnst@cn.fujitsu.com>
Subject: [PATCH v3 11/39] fs: quota: replace opened calling of ->sync_fs with sync_filesystem
Date: Tue, 15 Sep 2015 17:02:06 +0800	[thread overview]
Message-ID: <1442307754-13233-12-git-send-email-yangds.fnst@cn.fujitsu.com> (raw)
In-Reply-To: <1442307754-13233-1-git-send-email-yangds.fnst@cn.fujitsu.com>

There are only two places in whole kernel to call ->sync_fs directly. It
will sync fs even in read-only mode. It's not a good idea and some filesystem
would warn out if you are syncing in read-only mode. But sync_filesystem()
does filter this case out. Let's call sync_filesystem() here instead.

Signed-off-by: Dongsheng Yang <yangds.fnst@cn.fujitsu.com>
---
 fs/quota/dquot.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
index 140397a..0bda7fa 100644
--- a/fs/quota/dquot.c
+++ b/fs/quota/dquot.c
@@ -668,8 +668,7 @@ int dquot_quota_sync(struct super_block *sb, int type)
 	/* This is not very clever (and fast) but currently I don't know about
 	 * any other simple way of getting quota data to disk and we must get
 	 * them there for userspace to be visible... */
-	if (sb->s_op->sync_fs)
-		sb->s_op->sync_fs(sb, 1);
+	sync_filesystem(sb);
 	sync_blockdev(sb->s_bdev);
 
 	/*
@@ -2043,7 +2042,7 @@ int dquot_disable(struct super_block *sb, int type, unsigned int flags)
 	/*
 	 * Skip everything if there's nothing to do. We have to do this because
 	 * sometimes we are called when fill_super() failed and calling
-	 * sync_fs() in such cases does no good.
+	 * sync_filesystem() in such cases does no good.
 	 */
 	if (!sb_any_quota_loaded(sb)) {
 		mutex_unlock(&dqopt->dqonoff_mutex);
@@ -2110,8 +2109,7 @@ int dquot_disable(struct super_block *sb, int type, unsigned int flags)
 
 	/* Sync the superblock so that buffers with quota data are written to
 	 * disk (and so userspace sees correct data afterwards). */
-	if (sb->s_op->sync_fs)
-		sb->s_op->sync_fs(sb, 1);
+	sync_filesystem(sb);
 	sync_blockdev(sb->s_bdev);
 	/* Now the quota files are just ordinary files and we can set the
 	 * inode flags back. Moreover we discard the pagecache so that
-- 
1.8.4.2

  parent reply	other threads:[~2015-09-15  9:02 UTC|newest]

Thread overview: 107+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-09-15  9:01 [PATCH v3 00/39] Add quota supporting in ubifs Dongsheng Yang
2015-09-15  9:01 ` Dongsheng Yang
2015-09-15  9:01 ` [PATCH v3 01/39] fs: introduce a ->s_cdev field into struct super_block Dongsheng Yang
2015-09-15  9:01   ` Dongsheng Yang
2015-10-04  6:31   ` Christoph Hellwig
2015-10-05  8:36     ` Jan Kara
2015-09-15  9:01 ` [PATCH v3 02/39] fs: cleanup: remove the blank line before EXPORT_SYMBOL Dongsheng Yang
2015-09-15  9:01   ` Dongsheng Yang
2015-09-15  9:01 ` [PATCH v3 03/39] fs: super: cleanup: make the comment of each function aligned Dongsheng Yang
2015-09-15  9:01   ` Dongsheng Yang
2015-09-15  9:01 ` [PATCH v3 04/39] fs: super: consolidate the get_super class functions Dongsheng Yang
2015-09-15  9:01   ` Dongsheng Yang
2015-09-15  9:02 ` [PATCH v3 05/39] fs: super: introduce a get_super_cdev to get super by a cdev reference Dongsheng Yang
2015-09-15  9:02   ` Dongsheng Yang
2015-10-04  6:32   ` Christoph Hellwig
2015-09-15  9:02 ` [PATCH v3 06/39] fs: super: introduce a get_super_cdev_thawed to get sb by " Dongsheng Yang
2015-09-15  9:02   ` Dongsheng Yang
2015-09-15 21:24   ` Jan Kara
2015-09-15  9:02 ` [PATCH v3 07/39] fs: char_dev: introduce cd_acquire function to acquire cdev Dongsheng Yang
2015-09-15  9:02   ` Dongsheng Yang
2015-09-16  8:16   ` Jan Kara
2015-09-17  3:30     ` Dongsheng Yang
2015-09-15  9:02 ` [PATCH v3 08/39] fs: introduce a __lookup_dev for internal using Dongsheng Yang
2015-09-15  9:02   ` Dongsheng Yang
2015-09-15  9:02 ` [PATCH v3 09/39] fs: char_dev: introduce lookup_cdev to get cdev by pathname Dongsheng Yang
2015-09-15  9:02 ` [PATCH v3 10/39] fs: dquot: skip invalidate_bdev if bdev is NULL Dongsheng Yang
2015-09-15  9:02 ` Dongsheng Yang [this message]
2015-09-15  9:02   ` [PATCH v3 11/39] fs: quota: replace opened calling of ->sync_fs with sync_filesystem Dongsheng Yang
2015-09-16 10:14   ` Jan Kara
2015-09-17  6:28     ` Dongsheng Yang
2015-09-17  6:28       ` Dongsheng Yang
2015-09-17 11:05       ` Jan Kara
2015-09-18  5:49         ` Dongsheng Yang
2015-09-18  9:00           ` Jan Kara
2015-09-21  4:31             ` Dongsheng Yang
2015-09-15  9:02 ` [PATCH v3 12/39] fs: quota: make quota support fs which is running on char dev Dongsheng Yang
2015-09-15  9:02 ` [PATCH v3 13/39] fs: introduce a get_qsize() to inode_operations Dongsheng Yang
2015-10-04  6:33   ` Christoph Hellwig
2015-10-05  8:01     ` Jan Kara
2015-09-15  9:02 ` [PATCH v3 14/39] fs: quota: restore i_flags of quota files in dquot_disable Dongsheng Yang
2015-09-15  9:02   ` Dongsheng Yang
2015-09-15  9:02 ` [PATCH v3 15/39] fs: quota: introduce a callback of restore_iflags to quotactl_ops Dongsheng Yang
2015-09-15  9:02   ` Dongsheng Yang
2015-09-16  9:47   ` Jan Kara
2015-09-15  9:02 ` [PATCH v3 16/39] ubi: introduce a interface to get cdev in ubi_volume Dongsheng Yang
2015-09-15  9:02   ` Dongsheng Yang
2015-09-15  9:02 ` [PATCH v3 17/39] ubifs: extend budget for blocks Dongsheng Yang
2015-09-15  9:02   ` Dongsheng Yang
2015-09-15  9:02 ` [PATCH v3 18/39] ubifs: fill sb->s_cdev in ubifs_fill_super() Dongsheng Yang
2015-09-15  9:02   ` Dongsheng Yang
2015-09-15  9:02 ` [PATCH v3 19/39] ubifs: fill ->s_dev in ubifs_fill_super Dongsheng Yang
2015-09-15  9:02   ` Dongsheng Yang
2015-09-15  9:02 ` [PATCH v3 20/39] ubifs: export read_block() from file.c Dongsheng Yang
2015-09-15  9:02   ` Dongsheng Yang
2015-09-15  9:02 ` [PATCH v3 21/39] ubifs: introduce i_dquot to ubifs_inode Dongsheng Yang
2015-09-15  9:02   ` Dongsheng Yang
2015-09-15  9:02 ` [PATCH v3 22/39] ubifs: implement IO functions for quota files Dongsheng Yang
2015-09-15  9:02   ` Dongsheng Yang
2015-09-15  9:02 ` [PATCH v3 23/39] ubifs: disable quota in ubifs_put_super Dongsheng Yang
2015-09-15  9:02   ` Dongsheng Yang
2015-09-15  9:02 ` [PATCH v3 24/39] ubifs: write quota back in ubifs_sync Dongsheng Yang
2015-09-15  9:02   ` Dongsheng Yang
2015-09-15  9:02 ` [PATCH v3 25/39] ubifs: set/clear MS_RDONLY properly in ubifs_remount Dongsheng Yang
2015-09-15  9:02 ` [PATCH v3 26/39] ubifs: suspend & resume quota " Dongsheng Yang
2015-09-15  9:02   ` Dongsheng Yang
2015-09-15  9:02 ` [PATCH v3 27/39] ubifs: check inode with NULL before using it Dongsheng Yang
2015-09-15  9:02   ` Dongsheng Yang
2015-09-15  9:02 ` [PATCH v3 28/39] ubifs: record quota information about inode in ubifs_new_inode Dongsheng Yang
2015-09-15  9:02   ` Dongsheng Yang
2015-09-15  9:35   ` Sheng Yong
2015-09-16  1:46     ` Dongsheng Yang
2015-09-15  9:02 ` [PATCH v3 29/39] ubifs: free quota inode information in ubifs_evict_inode Dongsheng Yang
2015-09-15  9:02   ` Dongsheng Yang
2015-09-15  9:02 ` [PATCH v3 30/39] ubifs: alloc quota space in ubifs writing path Dongsheng Yang
2015-09-15  9:02   ` Dongsheng Yang
2015-09-15  9:02 ` [PATCH v3 31/39] ubifs: free quota space in do_truncation Dongsheng Yang
2015-09-15  9:02 ` [PATCH v3 32/39] ubifs: free quota space when deleting a file Dongsheng Yang
2015-09-15  9:02   ` Dongsheng Yang
2015-09-15  9:02 ` [PATCH v3 33/39] ubifs: adapt quota space informatin in do_setattr Dongsheng Yang
2015-09-15  9:02   ` Dongsheng Yang
2015-09-15  9:02 ` [PATCH v3 34/39] ubifs: transfer quota information in changing owner or group Dongsheng Yang
2015-09-15  9:02   ` Dongsheng Yang
2015-09-15  9:02 ` [PATCH v3 35/39] ubifs: write inode in ubifs_quota_write if we are appending Dongsheng Yang
2015-09-15  9:02   ` Dongsheng Yang
2015-09-15  9:02 ` [PATCH v3 36/39] ubifs: implement ubifs_get_qsize to get quota size in ubifs Dongsheng Yang
2015-09-16 10:00   ` Jan Kara
2015-09-17  7:23     ` Dongsheng Yang
2015-09-17  7:23       ` Dongsheng Yang
2015-09-17 12:00       ` Jan Kara
2015-09-18  6:14         ` Dongsheng Yang
2015-09-18 11:20           ` Jan Kara
2015-09-21  4:35             ` Dongsheng Yang
2015-09-21  9:13               ` Jan Kara
2015-09-21  9:16                 ` Dongsheng Yang
2015-09-21  9:44                   ` Jan Kara
2015-09-21 11:02                     ` Dongsheng Yang
2015-09-23  7:42                       ` Jan Kara
2015-09-24  0:50                         ` Dongsheng Yang
2015-09-15  9:02 ` [PATCH v3 37/39] ubifs: implement ubifs_restore_iflags for quotactl_operations Dongsheng Yang
2015-09-15  9:02   ` Dongsheng Yang
2015-09-15  9:02 ` [PATCH v3 38/39] ubifs: fill the quota related fields in ubifs_fill_super Dongsheng Yang
2015-09-15  9:02 ` [PATCH v3 39/39] ubifs: introduce quota related mount options Dongsheng Yang
2015-09-15  9:02   ` Dongsheng Yang
2015-09-15  9:36   ` Sheng Yong
2015-09-16  1:48     ` Dongsheng Yang
2015-10-03 18:57 ` [PATCH v3 00/39] Add quota supporting in ubifs Richard Weinberger
2015-10-04  2:32   ` Dongsheng Yang

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