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

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Signed-off-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Evgeniy Polyakov 2009-03-27 15:04:24 +03:00 committed by Greg Kroah-Hartman
parent e504342448
commit cee9bb2ebd
1 changed files with 19 additions and 1 deletions
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20
drivers/staging/pohmelfs/inode.c
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@ -1908,11 +1908,29 @@ static int pohmelfs_get_sb(struct file_system_type *fs_type,
mnt); 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 = { static struct file_system_type pohmel_fs_type = {
.owner = THIS_MODULE, .owner = THIS_MODULE,
.name = "pohmel", .name = "pohmel",
.get_sb = pohmelfs_get_sb, .get_sb = pohmelfs_get_sb,
.kill_sb = kill_anon_super, .kill_sb = pohmelfs_kill_super,
}; };
/* /*