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nfs: convert to new i_version API

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For NFS, we just use the "raw" API since the i_version is mostly
managed by the server. The exception there is when the client
holds a write delegation, but we only need to bump it once
there anyway to handle CB_GETATTR.

Tested-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
This commit is contained in:
Jeff Layton 2018-01-09 08:21:17 -05:00
parent ee73f9a52a
commit 1eb5d98f16
6 changed files with 26 additions and 23 deletions
Download patch file Download diff file Expand all files Collapse all files

10
fs/nfs/nfs4proc.c
View file

@ -54,6 +54,7 @@
#include <linux/xattr.h>
#include <linux/utsname.h>
#include <linux/freezer.h>
#include <linux/iversion.h>
#include "nfs4_fs.h"
#include "delegation.h"
@ -1045,16 +1046,16 @@ static void update_changeattr(struct inode *dir, struct nfs4_change_info *cinfo,
spin_lock(&dir->i_lock);
nfsi->cache_validity |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA;
if (cinfo->atomic && cinfo->before == dir->i_version) {
if (cinfo->atomic && cinfo->before == inode_peek_iversion_raw(dir)) {
nfsi->cache_validity &= ~NFS_INO_REVAL_PAGECACHE;
nfsi->attrtimeo_timestamp = jiffies;
} else {
nfs_force_lookup_revalidate(dir);
if (cinfo->before != dir->i_version)
if (cinfo->before != inode_peek_iversion_raw(dir))
nfsi->cache_validity |= NFS_INO_INVALID_ACCESS |
NFS_INO_INVALID_ACL;
}
dir->i_version = cinfo->after;
inode_set_iversion_raw(dir, cinfo->after);
nfsi->read_cache_jiffies = timestamp;
nfsi->attr_gencount = nfs_inc_attr_generation_counter();
nfs_fscache_invalidate(dir);
@ -2454,7 +2455,8 @@ static int _nfs4_proc_open(struct nfs4_opendata *data)
data->file_created = true;
else if (o_res->cinfo.before != o_res->cinfo.after)
data->file_created = true;
if (data->file_created || dir->i_version != o_res->cinfo.after)
if (data->file_created ||
inode_peek_iversion_raw(dir) != o_res->cinfo.after)
update_changeattr(dir, &o_res->cinfo,
o_res->f_attr->time_start);
}