From 80e09fb942d38beb19dcffbeb14d496beeb0a989 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Mon, 8 Jun 2009 10:03:58 +0200 Subject: [PATCH] exofs: add ->sync_fs Add a ->sync_fs method for data integrity syncs, and reimplement ->write_super ontop of it. Signed-off-by: Christoph Hellwig Signed-off-by: Al Viro --- fs/exofs/super.c | 16 +++++++++++++--- 1 file changed, 13 insertions(+), 3 deletions(-) diff --git a/fs/exofs/super.c b/fs/exofs/super.c index 49e16af4e61..8216c5b77b5 100644 --- a/fs/exofs/super.c +++ b/fs/exofs/super.c @@ -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 @@ out: 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, };