The patch titled
mm: bdi: expose the BDI object in sysfs for NFS
has been removed from the -mm tree. Its filename was
mm-bdi-expose-the-bdi-object-in-sysfs-for-nfs.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: mm: bdi: expose the BDI object in sysfs for NFS
From: Miklos Szeredi <mszeredi@xxxxxxx>
Register NFS' backing_dev_info under sysfs with the name "nfs-MAJOR:MINOR"
Signed-off-by: Miklos Szeredi <mszeredi@xxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Cc: Trond Myklebust <trond.myklebust@xxxxxxxxxx>
Cc: "J. Bruce Fields" <bfields@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/nfs/super.c | 26 ++++++++++++++++++++++++++
1 file changed, 26 insertions(+)
diff -puN fs/nfs/super.c~mm-bdi-expose-the-bdi-object-in-sysfs-for-nfs fs/nfs/super.c
--- a/fs/nfs/super.c~mm-bdi-expose-the-bdi-object-in-sysfs-for-nfs
+++ a/fs/nfs/super.c
@@ -1575,6 +1575,11 @@ static int nfs_compare_super(struct supe
return nfs_compare_mount_options(sb, server, mntflags);
}
+static int nfs_bdi_register(struct nfs_server *server)
+{
+ return bdi_register_dev(&server->backing_dev_info, server->s_dev);
+}
+
static int nfs_get_sb(struct file_system_type *fs_type,
int flags, const char *dev_name, void *raw_data, struct vfsmount *mnt)
{
@@ -1617,6 +1622,10 @@ static int nfs_get_sb(struct file_system
if (s->s_fs_info != server) {
nfs_free_server(server);
server = NULL;
+ } else {
+ error = nfs_bdi_register(server);
+ if (error)
+ goto error_splat_super;
}
if (!s->s_root) {
@@ -1664,6 +1673,7 @@ static void nfs_kill_super(struct super_
{
struct nfs_server *server = NFS_SB(s);
+ bdi_unregister(&server->backing_dev_info);
kill_anon_super(s);
nfs_free_server(server);
}
@@ -1708,6 +1718,10 @@ static int nfs_xdev_get_sb(struct file_s
if (s->s_fs_info != server) {
nfs_free_server(server);
server = NULL;
+ } else {
+ error = nfs_bdi_register(server);
+ if (error)
+ goto error_splat_super;
}
if (!s->s_root) {
@@ -1984,6 +1998,10 @@ static int nfs4_get_sb(struct file_syste
if (s->s_fs_info != server) {
nfs_free_server(server);
server = NULL;
+ } else {
+ error = nfs_bdi_register(server);
+ if (error)
+ goto error_splat_super;
}
if (!s->s_root) {
@@ -2070,6 +2088,10 @@ static int nfs4_xdev_get_sb(struct file_
if (s->s_fs_info != server) {
nfs_free_server(server);
server = NULL;
+ } else {
+ error = nfs_bdi_register(server);
+ if (error)
+ goto error_splat_super;
}
if (!s->s_root) {
@@ -2149,6 +2171,10 @@ static int nfs4_referral_get_sb(struct f
if (s->s_fs_info != server) {
nfs_free_server(server);
server = NULL;
+ } else {
+ error = nfs_bdi_register(server);
+ if (error)
+ goto error_splat_super;
}
if (!s->s_root) {
_
Patches currently in -mm which might be from mszeredi@xxxxxxx are
origin.patch
vfs-fix-permission-checking-in-sys_utimensat.patch
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