coda: add bdi backing to mount session
This ensures that dirty data gets flushed properly.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/fs/coda/inode.c b/fs/coda/inode.c
index a1695dc..d97f993 100644
--- a/fs/coda/inode.c
+++ b/fs/coda/inode.c
@@ -167,6 +167,10 @@
return -EBUSY;
}
+ error = bdi_setup_and_register(&vc->bdi, "coda", BDI_CAP_MAP_COPY);
+ if (error)
+ goto bdi_err;
+
vc->vc_sb = sb;
sb->s_fs_info = vc;
@@ -175,6 +179,7 @@
sb->s_blocksize_bits = 12;
sb->s_magic = CODA_SUPER_MAGIC;
sb->s_op = &coda_super_operations;
+ sb->s_bdi = &vc->bdi;
/* get root fid from Venus: this needs the root inode */
error = venus_rootfid(sb, &fid);
@@ -200,6 +205,8 @@
return 0;
error:
+ bdi_destroy(&vc->bdi);
+ bdi_err:
if (root)
iput(root);
if (vc)
@@ -210,6 +217,7 @@
static void coda_put_super(struct super_block *sb)
{
+ bdi_destroy(&coda_vcp(sb)->bdi);
coda_vcp(sb)->vc_sb = NULL;
sb->s_fs_info = NULL;
diff --git a/include/linux/coda_psdev.h b/include/linux/coda_psdev.h
index 5b5d473..644062e8 100644
--- a/include/linux/coda_psdev.h
+++ b/include/linux/coda_psdev.h
@@ -1,6 +1,7 @@
#ifndef __CODA_PSDEV_H
#define __CODA_PSDEV_H
+#include <linux/backing-dev.h>
#include <linux/magic.h>
#define CODA_PSDEV_MAJOR 67
@@ -17,6 +18,7 @@
struct list_head vc_processing;
int vc_inuse;
struct super_block *vc_sb;
+ struct backing_dev_info bdi;
};