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authorJens Axboe <jens.axboe@oracle.com>2010-04-22 11:42:00 +0200
committerJens Axboe <jens.axboe@oracle.com>2010-04-22 11:42:00 +0200
commit0ed07ddb56d1348e5ce33f3b8de20d730351983a (patch)
tree2a1487252e9ecd6fe5b7ff87d9b035f040ab8ff1 /fs/9p/v9fs.c
parentc3c532061e46156e8aab1268f38d66cfb63aeb2d (diff)
downloadblackbird-op-linux-0ed07ddb56d1348e5ce33f3b8de20d730351983a.tar.gz
blackbird-op-linux-0ed07ddb56d1348e5ce33f3b8de20d730351983a.zip
9p: add bdi backing to mount session
This ensures that dirty data gets flushed properly. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'fs/9p/v9fs.c')
-rw-r--r--fs/9p/v9fs.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/fs/9p/v9fs.c b/fs/9p/v9fs.c
index 5c5bc8480070..f8b86e92cd66 100644
--- a/fs/9p/v9fs.c
+++ b/fs/9p/v9fs.c
@@ -238,6 +238,13 @@ struct p9_fid *v9fs_session_init(struct v9fs_session_info *v9ses,
return ERR_PTR(-ENOMEM);
}
+ rc = bdi_setup_and_register(&v9ses->bdi, "9p", BDI_CAP_MAP_COPY);
+ if (rc) {
+ __putname(v9ses->aname);
+ __putname(v9ses->uname);
+ return ERR_PTR(rc);
+ }
+
spin_lock(&v9fs_sessionlist_lock);
list_add(&v9ses->slist, &v9fs_sessionlist);
spin_unlock(&v9fs_sessionlist_lock);
@@ -301,6 +308,7 @@ struct p9_fid *v9fs_session_init(struct v9fs_session_info *v9ses,
return fid;
error:
+ bdi_destroy(&v9ses->bdi);
return ERR_PTR(retval);
}
@@ -326,6 +334,8 @@ void v9fs_session_close(struct v9fs_session_info *v9ses)
__putname(v9ses->uname);
__putname(v9ses->aname);
+ bdi_destroy(&v9ses->bdi);
+
spin_lock(&v9fs_sessionlist_lock);
list_del(&v9ses->slist);
spin_unlock(&v9fs_sessionlist_lock);
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