Commit ad43ffde authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Al Viro
Browse files

sysv: add ->sync_fs



Add a ->sync_fs method for data integrity syncs, and reimplement
->write_super ontop of it.
Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent 7fbc6df0
......@@ -31,16 +31,13 @@
#include <asm/byteorder.h>
#include "sysv.h"
/* This is only called on sync() and umount(), when s_dirt=1. */
static void sysv_write_super(struct super_block *sb)
static int sysv_sync_fs(struct super_block *sb, int wait)
{
struct sysv_sb_info *sbi = SYSV_SB(sb);
unsigned long time = get_seconds(), old_time;
lock_super(sb);
lock_kernel();
if (sb->s_flags & MS_RDONLY)
goto clean;
/*
* If we are going to write out the super block,
......@@ -54,10 +51,19 @@ static void sysv_write_super(struct super_block *sb)
*sbi->s_sb_time = cpu_to_fs32(sbi, time);
mark_buffer_dirty(sbi->s_bh2);
}
clean:
sb->s_dirt = 0;
unlock_kernel();
unlock_super(sb);
return 0;
}
static void sysv_write_super(struct super_block *sb)
{
if (!(sb->s_flags & MS_RDONLY))
sysv_sync_fs(sb, 1);
else
sb->s_dirt = 0;
}
static int sysv_remount(struct super_block *sb, int *flags, char *data)
......@@ -345,6 +351,7 @@ const struct super_operations sysv_sops = {
.delete_inode = sysv_delete_inode,
.put_super = sysv_put_super,
.write_super = sysv_write_super,
.sync_fs = sysv_sync_fs,
.remount_fs = sysv_remount,
.statfs = sysv_statfs,
};
......
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