ext2: Fold ext2_commit_super() into ext2_sync_super()
Jan Blunck [Wed, 14 Apr 2010 12:38:36 +0000 (14:38 +0200)]
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>

fs/ext2/super.c

index 09a88bf..a304c54 100644 (file)
@@ -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: