The patch titled
ntfs: new export ops
has been added to the -mm tree. Its filename is
ntfs-new-export-ops.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: ntfs: new export ops
From: Christoph Hellwig <hch@xxxxxx>
Trivial switch over to the new generic helpers.
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Cc: Neil Brown <neilb@xxxxxxx>
Cc: "J. Bruce Fields" <bfields@xxxxxxxxxxxx>
Cc: Anton Altaparmakov <aia21@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/ntfs/namei.c | 77 +++++++++++++++++-----------------------------
1 files changed, 29 insertions(+), 48 deletions(-)
diff -puN fs/ntfs/namei.c~ntfs-new-export-ops fs/ntfs/namei.c
--- a/fs/ntfs/namei.c~ntfs-new-export-ops
+++ a/fs/ntfs/namei.c
@@ -450,58 +450,40 @@ try_next:
return parent_dent;
}
-/**
- * ntfs_get_dentry - find a dentry for the inode from a file handle sub-fragment
- * @sb: super block identifying the mounted ntfs volume
- * @fh: the file handle sub-fragment
- *
- * Find a dentry for the inode given a file handle sub-fragment. This function
- * is called from fs/exportfs/expfs.c::find_exported_dentry() which in turn is
- * called from the default ->decode_fh() which is export_decode_fh() in the
- * same file. The code is closely based on the default ->get_dentry() helper
- * fs/exportfs/expfs.c::get_object().
- *
- * The @fh contains two 32-bit unsigned values, the first one is the inode
- * number and the second one is the inode generation.
- *
- * Return the dentry on success or the error code on error (IS_ERR() is true).
- */
-static struct dentry *ntfs_get_dentry(struct super_block *sb, void *fh)
+static struct inode *ntfs_nfs_get_inode(struct super_block *sb,
+ u64 ino, u32 generation)
{
- struct inode *vi;
- struct dentry *dent;
- unsigned long ino = ((u32 *)fh)[0];
- u32 gen = ((u32 *)fh)[1];
-
- ntfs_debug("Entering for inode 0x%lx, generation 0x%x.", ino, gen);
- vi = ntfs_iget(sb, ino);
- if (IS_ERR(vi)) {
- ntfs_error(sb, "Failed to get inode 0x%lx.", ino);
- return (struct dentry *)vi;
- }
- if (unlikely(is_bad_inode(vi) || vi->i_generation != gen)) {
- /* We didn't find the right inode. */
- ntfs_error(sb, "Inode 0x%lx, bad count: %d %d or version 0x%x "
- "0x%x.", vi->i_ino, vi->i_nlink,
- atomic_read(&vi->i_count), vi->i_generation,
- gen);
- iput(vi);
- return ERR_PTR(-ESTALE);
- }
- /* Now find a dentry. If possible, get a well-connected one. */
- dent = d_alloc_anon(vi);
- if (unlikely(!dent)) {
- iput(vi);
- return ERR_PTR(-ENOMEM);
+ struct inode *inode;
+
+ inode = ntfs_iget(sb, ino);
+ if (!IS_ERR(inode)) {
+ if (is_bad_inode(inode) || inode->i_generation != generation) {
+ iput(inode);
+ inode = ERR_PTR(-ESTALE);
+ }
}
- ntfs_debug("Done for inode 0x%lx, generation 0x%x.", ino, gen);
- return dent;
+
+ return inode;
+}
+
+static struct dentry *ntfs_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,
+ ntfs_nfs_get_inode);
+}
+
+static struct dentry *ntfs_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,
+ ntfs_nfs_get_inode);
}
/**
* Export operations allowing NFS exporting of mounted NTFS partitions.
*
- * We use the default ->decode_fh() and ->encode_fh() for now. Note that they
+ * We use the default ->encode_fh() for now. Note that they
* use 32 bits to store the inode number which is an unsigned long so on 64-bit
* architectures is usually 64 bits so it would all fail horribly on huge
* volumes. I guess we need to define our own encode and decode fh functions
@@ -520,7 +502,6 @@ static struct dentry *ntfs_get_dentry(st
struct export_operations ntfs_export_ops = {
.get_parent = ntfs_get_parent, /* Find the parent of a given
directory. */
- .get_dentry = ntfs_get_dentry, /* Find a dentry for the inode
- given a file handle
- sub-fragment. */
+ .fh_to_dentry = ntfs_fh_to_dentry,
+ .fh_to_parent = ntfs_fh_to_parent,
};
_
Patches currently in -mm which might be from hch@xxxxxx are
git-nfs.patch
git-nfsd.patch
partially-fix-up-the-lookup_one_noperm-mess.patch
optimize-x86-page-faults-like-all-other-achitectures-and-kill-notifier-cruft.patch
optimize-x86-page-faults-like-all-other-achitectures-and-kill-notifier-cruft-fix.patch
git-xfs.patch
sysv-convert-to-new-aops.patch
alpha-convert-to-generic-sys_ptrace.patch
kill-declare_mutex_locked.patch
remove-unneded-lock_kernel-in-driver-block-loopc.patch
ufs-move-non-layout-parts-of-ufs_fsh-to-fs-ufs.patch
fix-execute-checking-in-permission.patch
exec-remove-unnecessary-check-for-mnt_noexec.patch
fix-f_version-type-should-be-u64-instead-of-unsigned-long.patch
unprivileged-mounts-add-user-mounts-to-the-kernel.patch
unprivileged-mounts-allow-unprivileged-umount.patch
unprivileged-mounts-account-user-mounts.patch
unprivileged-mounts-propagate-error-values-from-clone_mnt.patch
unprivileged-mounts-allow-unprivileged-bind-mounts.patch
unprivileged-mounts-put-declaration-of-put_filesystem-in-fsh.patch
unprivileged-mounts-allow-unprivileged-mounts.patch
unprivileged-mounts-allow-unprivileged-fuse-mounts.patch
unprivileged-mounts-propagation-inherit-owner-from-parent.patch
unprivileged-mounts-add-no-submounts-flag.patch
revoke-special-mmap-handling.patch
revoke-core-code.patch
revoke-support-for-ext2-and-ext3.patch
revoke-add-documentation.patch
revoke-wire-up-i386-system-calls.patch
exportfs-add-fid-type.patch
exportfs-add-new-methods.patch
ext2-new-export-ops.patch
ext3-new-export-ops.patch
ext4-new-export-ops.patch
efs-new-export-ops.patch
jfs-new-export-ops.patch
ntfs-new-export-ops.patch
xfs-new-export-ops.patch
fat-new-export-ops.patch
isofs-new-export-ops.patch
shmem-new-export-ops.patch
reiserfs-new-export-ops.patch
gfs2-new-export-ops.patch
ocfs2-new-export-ops.patch
exportfs-remove-old-methods.patch
exportfs-make-struct-export_operations-const.patch
exportfs-update-documentation.patch
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