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ecryptfs: add bdi backing to mount session

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This ensures that dirty data gets flushed properly.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
This commit is contained in:
Jens Axboe
2010-04-22 12:22:04 +02:00
parent 5163d90076
commit 9df9c8b930
3 changed files with 12 additions and 1 deletions
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10
fs/ecryptfs/main.c
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@@ -497,17 +497,25 @@ struct kmem_cache *ecryptfs_sb_info_cache;
static int
ecryptfs_fill_super(struct super_block *sb, void *raw_data, int silent)
{
struct ecryptfs_sb_info *esi;
int rc = 0;
/* Released in ecryptfs_put_super() */
ecryptfs_set_superblock_private(sb,
kmem_cache_zalloc(ecryptfs_sb_info_cache,
GFP_KERNEL));
if (!ecryptfs_superblock_to_private(sb)) {
esi = ecryptfs_superblock_to_private(sb);
if (!esi) {
ecryptfs_printk(KERN_WARNING, "Out of memory\n");
rc = -ENOMEM;
goto out;
}
rc = bdi_setup_and_register(&esi->bdi, "ecryptfs", BDI_CAP_MAP_COPY);
if (rc)
goto out;
sb->s_bdi = &esi->bdi;
sb->s_op = &ecryptfs_sops;
/* Released through deactivate_super(sb) from get_sb_nodev */
sb->s_root = d_alloc(NULL, &(const struct qstr) {