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OpenCloudOS-Kernel
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afs: convert to new i_version API 

For AFS, it's generally treated as an opaque value, so we use the
*_raw variants of the API here.

Note that AFS has quite a different definition for this counter. AFS
only increments it on changes to the data to the data in regular files
and contents of the directories. Inode metadata changes do not result
in a version increment.

We'll need to reconcile that somehow if we ever want to present this to
userspace via statx.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
This commit is contained in:
Jeff Layton 2017-12-11 06:35:11 -05:00
parent 9dffe569d9
commit a01179e6eb
2 changed files with 5 additions and 3 deletions
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3
fs/afs/fsclient.c
View File

@ -13,6 +13,7 @@
#include <linux/slab.h>
#include <linux/sched.h>
#include <linux/circ_buf.h>
#include <linux/iversion.h>
#include "internal.h"
#include "afs_fs.h"
@ -124,7 +125,7 @@ static void xdr_decode_AFSFetchStatus(const __be32 **_bp,
vnode->vfs_inode.i_ctime.tv_sec = status->mtime_client;
vnode->vfs_inode.i_mtime = vnode->vfs_inode.i_ctime;
vnode->vfs_inode.i_atime = vnode->vfs_inode.i_ctime;
vnode->vfs_inode.i_version = data_version;
inode_set_iversion_raw(&vnode->vfs_inode, data_version);
}
expected_version = status->data_version;

5
fs/afs/inode.c
View File

@ -21,6 +21,7 @@
#include <linux/sched.h>
#include <linux/mount.h>
#include <linux/namei.h>
#include <linux/iversion.h>
#include "internal.h"
static const struct inode_operations afs_symlink_inode_operations = {
@ -89,7 +90,7 @@ static int afs_inode_map_status(struct afs_vnode *vnode, struct key *key)
inode->i_atime = inode->i_mtime = inode->i_ctime;
inode->i_blocks = 0;
inode->i_generation = vnode->fid.unique;
inode->i_version = vnode->status.data_version;
inode_set_iversion_raw(inode, vnode->status.data_version);
inode->i_mapping->a_ops = &afs_fs_aops;
read_sequnlock_excl(&vnode->cb_lock);
@ -218,7 +219,7 @@ struct inode *afs_iget_autocell(struct inode *dir, const char *dev_name,
inode->i_ctime.tv_nsec = 0;
inode->i_atime = inode->i_mtime = inode->i_ctime;
inode->i_blocks = 0;
inode->i_version = 0;
inode_set_iversion_raw(inode, 0);
inode->i_generation = 0;
set_bit(AFS_VNODE_PSEUDODIR, &vnode->flags);