The patch titled
isofs: new export ops
has been added to the -mm tree. Its filename is
isofs-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: isofs: new export ops
From: Christoph Hellwig <hch@xxxxxx>
Nice little cleanup by consolidating things a little and using a structure for
the special file handle format.
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Cc: Neil Brown <neilb@xxxxxxx>
Cc: "J. Bruce Fields" <bfields@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/isofs/export.c | 67 +++++++++++++++++++-------------------------
1 files changed, 29 insertions(+), 38 deletions(-)
diff -puN fs/isofs/export.c~isofs-new-export-ops fs/isofs/export.c
--- a/fs/isofs/export.c~isofs-new-export-ops
+++ a/fs/isofs/export.c
@@ -42,16 +42,6 @@ isofs_export_iget(struct super_block *sb
return result;
}
-static struct dentry *
-isofs_export_get_dentry(struct super_block *sb, void *vobjp)
-{
- __u32 *objp = vobjp;
- unsigned long block = objp[0];
- unsigned long offset = objp[1];
- __u32 generation = objp[2];
- return isofs_export_iget(sb, block, offset, generation);
-}
-
/* This function is surprisingly simple. The trick is understanding
* that "child" is always a directory. So, to find its parent, you
* simply need to find its ".." entry, normalize its block and offset,
@@ -182,43 +172,44 @@ isofs_export_encode_fh(struct dentry *de
return type;
}
+struct isofs_fid {
+ u32 block;
+ u16 offset;
+ u16 parent_offset;
+ u32 generation;
+ u32 parent_block;
+ u32 parent_generation;
+};
-static struct dentry *
-isofs_export_decode_fh(struct super_block *sb,
- __u32 *fh32,
- int fh_len,
- int fileid_type,
- int (*acceptable)(void *context, struct dentry *de),
- void *context)
+static struct dentry *isofs_fh_to_dentry(struct super_block *sb,
+ struct fid *fid, int fh_len, int fh_type)
{
- __u16 *fh16 = (__u16*)fh32;
- __u32 child[3]; /* The child is what triggered all this. */
- __u32 parent[3]; /* The parent is just along for the ride. */
+ struct isofs_fid *ifid = (struct isofs_fid *)fid;
- if (fh_len < 3 || fileid_type > 2)
+ if (fh_len < 3 || fh_type > 2)
return NULL;
- child[0] = fh32[0];
- child[1] = fh16[2]; /* fh16 [sic] */
- child[2] = fh32[2];
-
- parent[0] = 0;
- parent[1] = 0;
- parent[2] = 0;
- if (fileid_type == 2) {
- if (fh_len > 2) parent[0] = fh32[3];
- parent[1] = fh16[3]; /* fh16 [sic] */
- if (fh_len > 4) parent[2] = fh32[4];
- }
-
- return sb->s_export_op->find_exported_dentry(sb, child, parent,
- acceptable, context);
+ return isofs_export_iget(sb, ifid->block, ifid->offset,
+ ifid->generation);
}
+static struct dentry *isofs_fh_to_parent(struct super_block *sb,
+ struct fid *fid, int fh_len, int fh_type)
+{
+ struct isofs_fid *ifid = (struct isofs_fid *)fid;
+
+ if (fh_type != 2)
+ return NULL;
+
+ return isofs_export_iget(sb,
+ fh_len > 2 ? ifid->parent_block : 0,
+ ifid->parent_offset,
+ fh_len > 4 ? ifid->parent_generation : 0);
+}
struct export_operations isofs_export_ops = {
- .decode_fh = isofs_export_decode_fh,
.encode_fh = isofs_export_encode_fh,
- .get_dentry = isofs_export_get_dentry,
+ .fh_to_dentry = isofs_fh_to_dentry,
+ .fh_to_parent = isofs_fh_to_parent,
.get_parent = isofs_export_get_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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