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

fs/sysv/inode.c

+13 −6
Original line number Diff line number Diff line
@@ -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,

};