The patch titled
ntfs: new export ops
has been removed from the -mm tree. Its filename was
ntfs-new-export-ops.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
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 file 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
origin.patch
git-unionfs.patch
git-xfs.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-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
r-o-bind-mounts-stub-functions.patch
r-o-bind-mounts-elevate-write-count-during-entire-ncp_ioctl.patch
r-o-bind-mounts-elevate-write-count-during-entire-ncp_ioctl-fix.patch
r-o-bind-mounts-elevate-write-count-for-do_utimes-touch-command-causes-oops.patch
r-o-bind-mounts-track-number-of-mount-writers.patch
r-o-bind-mounts-honor-r-w-changes-at-do_remount-time.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
dont-touch-fs_struct-in-drivers.patch
dont-touch-fs_struct-in-usermodehelper.patch
remove-path_release_on_umount.patch
move-struct-path-into-its-own-header.patch
embed-a-struct-path-into-struct-nameidata-instead-of-nd-dentrymnt.patch
embed-a-struct-path-into-struct-nameidata-instead-of-nd-dentrymnt-checkpatch-fixes.patch
introduce-path_put.patch
use-path_put-in-a-few-places-instead-of-mntdput.patch
introduce-path_get.patch
use-struct-path-in-fs_struct.patch
make-set_fs_rootpwd-take-a-struct-path.patch
make-__d_path-to-take-a-struct-path-argument.patch
use-struct-path-argument-in-proc_get_link.patch
embed-a-struct-path-into-struct-nameidata-instead-of-nd-dentrymnt-unionfs.patch
introduce-path_put-unionfs.patch
introduce-path_get-unionfs.patch
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