The patch titled
ufs: NFS support
has been added to the -mm tree. Its filename is
ufs-nfs-support.patch
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out what to do about this
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: ufs: NFS support
From: Alexey Dobriyan <adobriyan@xxxxxxxxx>
Signed-off-by: Alexey Dobriyan <adobriyan@xxxxxxxxx>
Acked-by: Evgeniy Dushistov <dushistov@xxxxxxx>
Cc: Christoph Hellwig <hch@xxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
diff -puN fs/ufs/super.c~ufs-nfs-support fs/ufs/super.c
--- a/fs/ufs/super.c~ufs-nfs-support
+++ a/fs/ufs/super.c
@@ -66,6 +66,7 @@
*/
+#include <linux/exportfs.h>
#include <linux/module.h>
#include <linux/bitops.h>
@@ -96,6 +97,56 @@
#include "swab.h"
#include "util.h"
+static struct inode *ufs_nfs_get_inode(struct super_block *sb, u64 ino, u32 generation)
+{
+ struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
+ struct inode *inode;
+
+ if (ino < UFS_ROOTINO || ino > uspi->s_ncg * uspi->s_ipg)
+ return ERR_PTR(-ESTALE);
+
+ inode = ufs_iget(sb, ino);
+ if (IS_ERR(inode))
+ return ERR_CAST(inode);
+ if (generation && inode->i_generation != generation) {
+ iput(inode);
+ return ERR_PTR(-ESTALE);
+ }
+ return inode;
+}
+
+static struct dentry *ufs_fh_to_dentry(struct super_block *sb, struct fid *fid,
+ int fh_len, int fh_type)
+{
+ return generic_fh_to_dentry(sb, fid, fh_len, fh_type, ufs_nfs_get_inode);
+}
+
+static struct dentry *ufs_fh_to_parent(struct super_block *sb, struct fid *fid,
+ int fh_len, int fh_type)
+{
+ return generic_fh_to_parent(sb, fid, fh_len, fh_type, ufs_nfs_get_inode);
+}
+
+static struct dentry *ufs_get_parent(struct dentry *child)
+{
+ struct qstr dot_dot = {
+ .name = "..",
+ .len = 2,
+ };
+ ino_t ino;
+
+ ino = ufs_inode_by_name(child->d_inode, &dot_dot);
+ if (!ino)
+ return ERR_PTR(-ENOENT);
+ return d_obtain_alias(ufs_iget(child->d_inode->i_sb, ino));
+}
+
+static const struct export_operations ufs_export_ops = {
+ .fh_to_dentry = ufs_fh_to_dentry,
+ .fh_to_parent = ufs_fh_to_parent,
+ .get_parent = ufs_get_parent,
+};
+
#ifdef CONFIG_UFS_DEBUG
/*
* Print contents of ufs_super_block, useful for debugging
@@ -990,6 +1041,7 @@ magic_found:
* Read ufs_super_block into internal data structures
*/
sb->s_op = &ufs_super_ops;
+ sb->s_export_op = &ufs_export_ops;
sb->dq_op = NULL; /***/
sb->s_magic = fs32_to_cpu(sb, usb3->fs_magic);
_
Patches currently in -mm which might be from adobriyan@xxxxxxxxx are
origin.patch
uml-irq-register-race-condition.patch
linux-next.patch
genirq-switch-proc-irq-spurious-to-seq_file.patch
const-constify-remaining-dev_pm_ops.patch
proc-rename-de_get-to-pde_get-and-inline-it.patch
const-constify-remaining-pipe_buf_operations.patch
ufs-pass-qstr-instead-of-dentry-where-necessary-for-nfs.patch
ufs-nfs-support.patch
reiserfs-remove-proc-fs-reiserfs-version.patch
reiserfs-dont-compile-procfso-at-all-if-no-support.patch
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