Commit 80e09fb9 authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Al Viro
Browse files

exofs: 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 561e47ce

fs/exofs/super.c

+13 −3
Original line number Diff line number Diff line
@@ -200,18 +200,18 @@ static const struct export_operations exofs_export_ops; 
/*

 * Write the superblock to the OSD

 */

static void exofs_write_super(struct super_block *sb)

static int exofs_sync_fs(struct super_block *sb, int wait)

{

	struct exofs_sb_info *sbi;

	struct exofs_fscb *fscb;

	struct osd_request *or;

	struct osd_obj_id obj;

	int ret;

	int ret = -ENOMEM;



	fscb = kzalloc(sizeof(struct exofs_fscb), GFP_KERNEL);

	if (!fscb) {

		EXOFS_ERR("exofs_write_super: memory allocation failed.\n");

		return;

		return -ENOMEM;

	}



	lock_super(sb);
@@ -249,6 +249,15 @@ static void exofs_write_super(struct super_block *sb) 
	unlock_kernel();

	unlock_super(sb);

	kfree(fscb);

	return ret;

}



static void exofs_write_super(struct super_block *sb)

{

	if (!(sb->s_flags & MS_RDONLY))

		exofs_sync_fs(sb, 1);

	else

		sb->s_dirt = 0;

}



/*
@@ -493,6 +502,7 @@ static const struct super_operations exofs_sops = { 
	.delete_inode   = exofs_delete_inode,

	.put_super      = exofs_put_super,

	.write_super    = exofs_write_super,

	.sync_fs	= exofs_sync_fs,

	.statfs         = exofs_statfs,

};