Commit f9502216 authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Al Viro

xfs: remove ->write_super and stop maintaining ->s_dirt

the write_super method is used for

 (1) writing back the superblock periodically from pdflush
 (2) called just before ->sync_fs for data integerity syncs

We don't need (1) because we have our own peridoc writeout through xfssyncd,
and we don't need (2) because xfs_fs_sync_fs performs a proper synchronous
superblock writeout after all other data and metadata has been written out.

Also remove ->s_dirt tracking as it's only used to decide when too call
->write_super.
Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Reviewed-by: default avatarEric Sandeen <sandeen@sandeen.net>
Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent 13205fb9
......@@ -1104,15 +1104,6 @@ xfs_fs_put_super(
kfree(mp);
}
STATIC void
xfs_fs_write_super(
struct super_block *sb)
{
if (!(sb->s_flags & MS_RDONLY))
xfs_sync_fsdata(XFS_M(sb), 0);
sb->s_dirt = 0;
}
STATIC int
xfs_fs_sync_super(
struct super_block *sb,
......@@ -1137,7 +1128,6 @@ xfs_fs_sync_super(
error = xfs_quiesce_data(mp);
else
error = xfs_sync_fsdata(mp, 0);
sb->s_dirt = 0;
if (unlikely(laptop_mode)) {
int prev_sync_seq = mp->m_sync_seq;
......@@ -1443,7 +1433,6 @@ xfs_fs_fill_super(
XFS_SEND_MOUNT(mp, DM_RIGHT_NULL, mtpt, mp->m_fsname);
sb->s_dirt = 1;
sb->s_magic = XFS_SB_MAGIC;
sb->s_blocksize = mp->m_sb.sb_blocksize;
sb->s_blocksize_bits = ffs(sb->s_blocksize) - 1;
......@@ -1533,7 +1522,6 @@ static struct super_operations xfs_super_operations = {
.write_inode = xfs_fs_write_inode,
.clear_inode = xfs_fs_clear_inode,
.put_super = xfs_fs_put_super,
.write_super = xfs_fs_write_super,
.sync_fs = xfs_fs_sync_super,
.freeze_fs = xfs_fs_freeze,
.statfs = xfs_fs_statfs,
......
......@@ -628,8 +628,6 @@ xfs_trans_apply_sb_deltas(
xfs_trans_log_buf(tp, bp, offsetof(xfs_dsb_t, sb_icount),
offsetof(xfs_dsb_t, sb_frextents) +
sizeof(sbp->sb_frextents) - 1);
tp->t_mountp->m_super->s_dirt = 1;
}
/*
......
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