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Commit cee9bb2e authored by Evgeniy Polyakov's avatar Evgeniy Polyakov Committed by Greg Kroah-Hartman
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Staging: Pohmelfs: Sync fs before killing it, since dentry cache is shrunk... 


Staging: Pohmelfs: Sync fs before killing it, since dentry cache is shrunk before writeback is invoked via generic_shutdown_super()

Signed-off-by: default avatarEvgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent e5043424

drivers/staging/pohmelfs/inode.c

+19 −1
Original line number Diff line number Diff line
@@ -1908,11 +1908,29 @@ static int pohmelfs_get_sb(struct file_system_type *fs_type, 
				mnt);

}



/*

 * We need this to sync all inodes earlier, since when writeback

 * is invoked from the umount/mntput path dcache is already shrunk,

 * see generic_shutdown_super(), and no inodes can access the path.

 */

static void pohmelfs_kill_super(struct super_block *sb)

{

	struct writeback_control wbc = {

		.sync_mode	= WB_SYNC_ALL,

		.range_start	= 0,

		.range_end	= LLONG_MAX,

		.nr_to_write	= LONG_MAX,

	};

	generic_sync_sb_inodes(sb, &wbc);



	kill_anon_super(sb);

}



static struct file_system_type pohmel_fs_type = {

	.owner		= THIS_MODULE,

	.name		= "pohmel",

	.get_sb		= pohmelfs_get_sb,

	.kill_sb 	= kill_anon_super,

	.kill_sb 	= pohmelfs_kill_super,

};



/*