linux-next: manual merge of the vfs tree with the ext4 tree

From: Stephen Rothwell
Date: Tue May 19 2009 - 00:23:27 EST


Hi Al, Ted,

Today's linux-next merge of the vfs tree got a conflict in
fs/ext4/super.c between commit cb0765fe4c3db8c9c22f1ed1017cbced2dd68150
("ext4: Add a comprehensive block validity check to ext4_get_blocks()")
from the ext4 tree and various commits from the vfs tree.

Just context changes. I fixed it up (see below - please check as I am
not sure of the ordering constraints in the first hunk) and can carry the
fixup as necessary.
--
Cheers,
Stephen Rothwell sfr@xxxxxxxxxxxxxxxx

diff --cc fs/ext4/super.c
index eca6c05,d789833..0000000
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@@ -568,7 -564,11 +569,12 @@@ static void ext4_put_super(struct super
struct ext4_super_block *es = sbi->s_es;
int i, err;

+ lock_super(sb);
+ lock_kernel();
+ if (sb->s_dirt)
+ ext4_write_super_locked(sb);
+
+ ext4_release_system_zone(sb);
ext4_mb_release(sb);
ext4_ext_release(sb);
ext4_xattr_put_super(sb);
@@@ -3322,11 -3268,30 +3325,18 @@@ int ext4_force_commit(struct super_bloc
return ret;
}

- static void ext4_write_super(struct super_block *sb)
-/*
- * Ext4 always journals updates to the superblock itself, so we don't
- * have to propagate any other updates to the superblock on disk at this
- * point. (We can probably nuke this function altogether, and remove
- * any mention to sb->s_dirt in all of fs/ext4; eventual cleanup...)
- */
+ static void ext4_write_super_locked(struct super_block *sb)
{
- if (EXT4_SB(sb)->s_journal) {
- if (mutex_trylock(&sb->s_lock) != 0)
- BUG();
- sb->s_dirt = 0;
- } else {
- ext4_commit_super(sb, EXT4_SB(sb)->s_es, 1);
- }
+ ext4_commit_super(sb, 1);
}

+ static void ext4_write_super(struct super_block *sb)
+ {
+ lock_super(sb);
+ ext4_write_super_locked(sb);
+ unlock_super(sb);
+ }
+
static int ext4_sync_fs(struct super_block *sb, int wait)
{
int ret = 0;
--
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