Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755375Ab0DNMiw (ORCPT ); Wed, 14 Apr 2010 08:38:52 -0400 Received: from cantor2.suse.de ([195.135.220.15]:36489 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754380Ab0DNMin (ORCPT ); Wed, 14 Apr 2010 08:38:43 -0400 From: Jan Blunck To: Jan Kara , tytso@mit.edu Cc: Linux-Kernel Mailinglist , linux-ext4@vger.kernel.org, Frederic Weisbecker , Arnd Bergmann , Jan Blunck Subject: [PATCH 4/7] ext2: Fold ext2_commit_super() into ext2_sync_super() Date: Wed, 14 Apr 2010 14:38:36 +0200 Message-Id: <1271248719-21488-5-git-send-email-jblunck@suse.de> X-Mailer: git-send-email 1.6.4.2 In-Reply-To: <1271248719-21488-1-git-send-email-jblunck@suse.de> References: <1271248719-21488-1-git-send-email-jblunck@suse.de> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3314 Lines: 99 Both function originally did similar things except that ext2_sync_super() is returning after the call to sync_dirty_buffer(sbh). Therefore this patch adds a wait flag to tell ext2_sync_super() if it has to call sync_dirty_buffer() to wait for in-progress I/O to finish. Signed-off-by: Jan Blunck --- fs/ext2/super.c | 28 +++++++++------------------- 1 files changed, 9 insertions(+), 19 deletions(-) diff --git a/fs/ext2/super.c b/fs/ext2/super.c index 09a88bf..a304c54 100644 --- a/fs/ext2/super.c +++ b/fs/ext2/super.c @@ -39,7 +39,7 @@ #include "xip.h" static void ext2_sync_super(struct super_block *sb, - struct ext2_super_block *es); + struct ext2_super_block *es, int wait); static int ext2_remount (struct super_block * sb, int * flags, char * data); static int ext2_statfs (struct dentry * dentry, struct kstatfs * buf); static int ext2_sync_fs(struct super_block *sb, int wait); @@ -54,7 +54,7 @@ void ext2_error (struct super_block * sb, const char * function, if (!(sb->s_flags & MS_RDONLY)) { sbi->s_mount_state |= EXT2_ERROR_FS; es->s_state |= cpu_to_le16(EXT2_ERROR_FS); - ext2_sync_super(sb, es); + ext2_sync_super(sb, es, 1); } va_start(args, fmt); @@ -125,7 +125,7 @@ static void ext2_put_super (struct super_block * sb) struct ext2_super_block *es = sbi->s_es; es->s_state = cpu_to_le16(sbi->s_mount_state); - ext2_sync_super(sb, es); + ext2_sync_super(sb, es, 1); } db_count = sbi->s_gdb_count; for (i = 0; i < db_count; i++) @@ -1127,23 +1127,16 @@ static void ext2_clear_super_error(struct super_block *sb) } } -static void ext2_commit_super (struct super_block * sb, - struct ext2_super_block * es) -{ - ext2_clear_super_error(sb); - es->s_wtime = cpu_to_le32(get_seconds()); - mark_buffer_dirty(EXT2_SB(sb)->s_sbh); - sb->s_dirt = 0; -} - -static void ext2_sync_super(struct super_block *sb, struct ext2_super_block *es) +static void ext2_sync_super(struct super_block *sb, struct ext2_super_block *es, + int wait) { ext2_clear_super_error(sb); es->s_free_blocks_count = cpu_to_le32(ext2_count_free_blocks(sb)); es->s_free_inodes_count = cpu_to_le32(ext2_count_free_inodes(sb)); es->s_wtime = cpu_to_le32(get_seconds()); mark_buffer_dirty(EXT2_SB(sb)->s_sbh); - sync_dirty_buffer(EXT2_SB(sb)->s_sbh); + if (wait) + sync_dirty_buffer(EXT2_SB(sb)->s_sbh); sb->s_dirt = 0; } @@ -1166,11 +1159,8 @@ static int ext2_sync_fs(struct super_block *sb, int wait) if (es->s_state & cpu_to_le16(EXT2_VALID_FS)) { ext2_debug("setting valid to 0\n"); es->s_state &= cpu_to_le16(~EXT2_VALID_FS); - ext2_sync_super(sb, es); - } else { - ext2_commit_super(sb, es); } - sb->s_dirt = 0; + ext2_sync_super(sb, es, wait); unlock_kernel(); return 0; @@ -1268,7 +1258,7 @@ static int ext2_remount (struct super_block * sb, int * flags, char * data) if (!ext2_setup_super (sb, es, 0)) sb->s_flags &= ~MS_RDONLY; } - ext2_sync_super(sb, es); + ext2_sync_super(sb, es, 1); unlock_kernel(); return 0; restore_opts: -- 1.6.4.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/