ext2: Fold ext2_commit_super() into ext2_sync_super()

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 <jblunck@suse.de>
Signed-off-by: Jan Kara <jack@suse.cz>

1 files changed, 9 insertions, 19 deletions

diff --git a/fs/ext2/super.c b/fs/ext2/super.c
index 09a88bf04579..a304c544571f 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;
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