From ebc1ac164560a241d9bf1b7519062910c3f90a01 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Mon, 11 May 2009 23:35:03 +0200 Subject: ->write_super lock_super pushdown Push down lock_super into ->write_super instances and remove it from the caller. Following filesystem don't need ->s_lock in ->write_super and are skipped: * bfs, nilfs2 - no other uses of s_lock and have internal locks in ->write_super * ext2 - uses BKL in ext2_write_super and has internal calls without s_lock * reiserfs - no other uses of s_lock as has reiserfs_write_lock (BKL) in ->write_super * xfs - no other uses of s_lock and uses internal lock (buffer lock on superblock buffer) to serialize ->write_super. Also xfs_fs_write_super is superflous and will go away in the next merge window Signed-off-by: Christoph Hellwig Signed-off-by: Al Viro --- fs/jffs2/super.c | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-) (limited to 'fs/jffs2/super.c') diff --git a/fs/jffs2/super.c b/fs/jffs2/super.c index a80a50e445e..f7bfd3ac8bf 100644 --- a/fs/jffs2/super.c +++ b/fs/jffs2/super.c @@ -56,15 +56,18 @@ static void jffs2_i_init_once(void *foo) static void jffs2_write_super(struct super_block *sb) { struct jffs2_sb_info *c = JFFS2_SB_INFO(sb); + + lock_super(sb); sb->s_dirt = 0; - if (sb->s_flags & MS_RDONLY) - return; + if (!(sb->s_flags & MS_RDONLY)) { + D1(printk(KERN_DEBUG "jffs2_write_super()\n")); + jffs2_garbage_collect_trigger(c); + jffs2_erase_pending_blocks(c, 0); + jffs2_flush_wbuf_gc(c, 0); + } - D1(printk(KERN_DEBUG "jffs2_write_super()\n")); - jffs2_garbage_collect_trigger(c); - jffs2_erase_pending_blocks(c, 0); - jffs2_flush_wbuf_gc(c, 0); + unlock_super(sb); } static int jffs2_sync_fs(struct super_block *sb, int wait) -- cgit v1.2.3-70-g09d2