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authorJens Axboe <jens.axboe@oracle.com>2010-04-22 12:12:40 +0200
committerJens Axboe <jens.axboe@oracle.com>2010-04-22 12:12:40 +0200
commit5163d90076729413cb882d3dd5c3d3cfb5b9f035 (patch)
treeb2e3419e481f4373bb511642953f6faca5157a51
parent8044f7f468469c80031611206d554f86fcdfe704 (diff)
coda: add bdi backing to mount session
This ensures that dirty data gets flushed properly. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
-rw-r--r--fs/coda/inode.c8
-rw-r--r--include/linux/coda_psdev.h2
2 files changed, 10 insertions, 0 deletions
diff --git a/fs/coda/inode.c b/fs/coda/inode.c
index a1695dcadd9..d97f9935a02 100644
--- a/fs/coda/inode.c
+++ b/fs/coda/inode.c
@@ -167,6 +167,10 @@ static int coda_fill_super(struct super_block *sb, void *data, int silent)
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 @@ static int coda_fill_super(struct super_block *sb, void *data, int silent)
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 @@ static int coda_fill_super(struct super_block *sb, void *data, int silent)
return 0;
error:
+ bdi_destroy(&vc->bdi);
+ bdi_err:
if (root)
iput(root);
if (vc)
@@ -210,6 +217,7 @@ static int coda_fill_super(struct super_block *sb, void *data, int silent)
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 5b5d4731f95..644062e8d85 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 venus_comm {
struct list_head vc_processing;
int vc_inuse;
struct super_block *vc_sb;
+ struct backing_dev_info bdi;
};