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authorAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>2010-03-29 18:13:59 -0500
committerEric Van Hensbergen <ericvh@gmail.com>2010-04-05 10:37:36 -0500
commit6d96d3ab7aea5f0e75205a0c97f8d1fdf82c5287 (patch)
treea4dfa0472e2e670de1da7e7c0905da12d4608ab4 /fs
parentd994f4058d9f9be7e44529b55fc6be6552901ead (diff)
downloadop-kernel-dev-6d96d3ab7aea5f0e75205a0c97f8d1fdf82c5287.zip
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9p: Make sure we are able to clunk the cached fid on umount
dcache prune happen on umount. So we cannot mark the client satus disconnect. That will prevent a 9p call to the server Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Diffstat (limited to 'fs')
-rw-r--r--fs/9p/v9fs.c13
-rw-r--r--fs/9p/v9fs.h1
-rw-r--r--fs/9p/vfs_super.c3
3 files changed, 16 insertions, 1 deletions
diff --git a/fs/9p/v9fs.c b/fs/9p/v9fs.c
index 2f814cf..0b78ae8 100644
--- a/fs/9p/v9fs.c
+++ b/fs/9p/v9fs.c
@@ -342,6 +342,19 @@ void v9fs_session_cancel(struct v9fs_session_info *v9ses) {
p9_client_disconnect(v9ses->clnt);
}
+/**
+ * v9fs_session_begin_cancel - Begin terminate of a session
+ * @v9ses: session to terminate
+ *
+ * After this call we don't allow any request other than clunk.
+ */
+
+void v9fs_session_begin_cancel(struct v9fs_session_info *v9ses)
+{
+ P9_DPRINTK(P9_DEBUG_ERROR, "begin cancel session %p\n", v9ses);
+ p9_client_begin_disconnect(v9ses->clnt);
+}
+
extern int v9fs_error_init(void);
static struct kobject *v9fs_kobj;
diff --git a/fs/9p/v9fs.h b/fs/9p/v9fs.h
index 6b801d1..a0a8d3d 100644
--- a/fs/9p/v9fs.h
+++ b/fs/9p/v9fs.h
@@ -108,6 +108,7 @@ struct p9_fid *v9fs_session_init(struct v9fs_session_info *, const char *,
char *);
void v9fs_session_close(struct v9fs_session_info *v9ses);
void v9fs_session_cancel(struct v9fs_session_info *v9ses);
+void v9fs_session_begin_cancel(struct v9fs_session_info *v9ses);
#define V9FS_MAGIC 0x01021997
diff --git a/fs/9p/vfs_super.c b/fs/9p/vfs_super.c
index 69357c0..d1a3c80 100644
--- a/fs/9p/vfs_super.c
+++ b/fs/9p/vfs_super.c
@@ -193,6 +193,7 @@ static void v9fs_kill_super(struct super_block *s)
kill_anon_super(s);
+ v9fs_session_cancel(v9ses);
v9fs_session_close(v9ses);
kfree(v9ses);
s->s_fs_info = NULL;
@@ -205,7 +206,7 @@ v9fs_umount_begin(struct super_block *sb)
struct v9fs_session_info *v9ses;
v9ses = sb->s_fs_info;
- v9fs_session_cancel(v9ses);
+ v9fs_session_begin_cancel(v9ses);
}
static const struct super_operations v9fs_super_ops = {
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