From: Arnd Bergmann <arnd@arndb.de>
To: linux-nfs@vger.kernel.org,
"J. Bruce Fields" <bfields@fieldses.org>,
Chuck Lever <chuck.lever@oracle.com>,
Trond Myklebust <trond.myklebust@hammerspace.com>,
Anna Schumaker <anna.schumaker@netapp.com>
Cc: y2038@lists.linaro.org, linux-fsdevel@vger.kernel.org,
linux-kernel@vger.kernel.org, Arnd Bergmann <arnd@arndb.de>,
David Howells <dhowells@redhat.com>
Subject: [PATCH 05/19] nfs: fscache: use timespec64 in inode auxdata
Date: Mon, 11 Nov 2019 21:16:25 +0100 [thread overview]
Message-ID: <20191111201639.2240623-6-arnd@arndb.de> (raw)
In-Reply-To: <20191111201639.2240623-1-arnd@arndb.de>
nfs currently behaves differently on 32-bit and 64-bit kernels regarding
the on-disk format of nfs_fscache_inode_auxdata.
That format should really be the same on any kernel, and we should avoid
the 'timespec' type in order to remove that from the kernel later on.
Using plain 'timespec64' would not be good here, since that includes
implied padding and would possibly leak kernel stack data to the on-disk
format on 32-bit architectures.
struct __kernel_timespec would work as a replacement, but open-coding
the two struct members in nfs_fscache_inode_auxdata makes it more
obvious what's going on here, and keeps the current format for 64-bit
architectures.
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
fs/nfs/fscache-index.c | 6 ++++--
fs/nfs/fscache.c | 18 ++++++++++++------
fs/nfs/fscache.h | 8 +++++---
3 files changed, 21 insertions(+), 11 deletions(-)
diff --git a/fs/nfs/fscache-index.c b/fs/nfs/fscache-index.c
index 15f271401dcc..573b1da9342c 100644
--- a/fs/nfs/fscache-index.c
+++ b/fs/nfs/fscache-index.c
@@ -84,8 +84,10 @@ enum fscache_checkaux nfs_fscache_inode_check_aux(void *cookie_netfs_data,
return FSCACHE_CHECKAUX_OBSOLETE;
memset(&auxdata, 0, sizeof(auxdata));
- auxdata.mtime = timespec64_to_timespec(nfsi->vfs_inode.i_mtime);
- auxdata.ctime = timespec64_to_timespec(nfsi->vfs_inode.i_ctime);
+ auxdata.mtime_sec = nfsi->vfs_inode.i_mtime.tv_sec;
+ auxdata.mtime_nsec = nfsi->vfs_inode.i_mtime.tv_nsec;
+ auxdata.ctime_sec = nfsi->vfs_inode.i_ctime.tv_sec;
+ auxdata.ctime_nsec = nfsi->vfs_inode.i_ctime.tv_nsec;
if (NFS_SERVER(&nfsi->vfs_inode)->nfs_client->rpc_ops->version == 4)
auxdata.change_attr = inode_peek_iversion_raw(&nfsi->vfs_inode);
diff --git a/fs/nfs/fscache.c b/fs/nfs/fscache.c
index 3800ab6f08fa..7def925d3af5 100644
--- a/fs/nfs/fscache.c
+++ b/fs/nfs/fscache.c
@@ -238,8 +238,10 @@ void nfs_fscache_init_inode(struct inode *inode)
return;
memset(&auxdata, 0, sizeof(auxdata));
- auxdata.mtime = timespec64_to_timespec(nfsi->vfs_inode.i_mtime);
- auxdata.ctime = timespec64_to_timespec(nfsi->vfs_inode.i_ctime);
+ auxdata.mtime_sec = nfsi->vfs_inode.i_mtime.tv_sec;
+ auxdata.mtime_nsec = nfsi->vfs_inode.i_mtime.tv_nsec;
+ auxdata.ctime_sec = nfsi->vfs_inode.i_ctime.tv_sec;
+ auxdata.ctime_nsec = nfsi->vfs_inode.i_ctime.tv_nsec;
if (NFS_SERVER(&nfsi->vfs_inode)->nfs_client->rpc_ops->version == 4)
auxdata.change_attr = inode_peek_iversion_raw(&nfsi->vfs_inode);
@@ -263,8 +265,10 @@ void nfs_fscache_clear_inode(struct inode *inode)
dfprintk(FSCACHE, "NFS: clear cookie (0x%p/0x%p)\n", nfsi, cookie);
memset(&auxdata, 0, sizeof(auxdata));
- auxdata.mtime = timespec64_to_timespec(nfsi->vfs_inode.i_mtime);
- auxdata.ctime = timespec64_to_timespec(nfsi->vfs_inode.i_ctime);
+ auxdata.mtime_sec = nfsi->vfs_inode.i_mtime.tv_sec;
+ auxdata.mtime_nsec = nfsi->vfs_inode.i_mtime.tv_nsec;
+ auxdata.ctime_sec = nfsi->vfs_inode.i_ctime.tv_sec;
+ auxdata.ctime_nsec = nfsi->vfs_inode.i_ctime.tv_nsec;
fscache_relinquish_cookie(cookie, &auxdata, false);
nfsi->fscache = NULL;
}
@@ -305,8 +309,10 @@ void nfs_fscache_open_file(struct inode *inode, struct file *filp)
return;
memset(&auxdata, 0, sizeof(auxdata));
- auxdata.mtime = timespec64_to_timespec(nfsi->vfs_inode.i_mtime);
- auxdata.ctime = timespec64_to_timespec(nfsi->vfs_inode.i_ctime);
+ auxdata.mtime_sec = nfsi->vfs_inode.i_mtime.tv_sec;
+ auxdata.mtime_nsec = nfsi->vfs_inode.i_mtime.tv_nsec;
+ auxdata.ctime_sec = nfsi->vfs_inode.i_ctime.tv_sec;
+ auxdata.ctime_nsec = nfsi->vfs_inode.i_ctime.tv_nsec;
if (inode_is_open_for_write(inode)) {
dfprintk(FSCACHE, "NFS: nfsi 0x%p disabling cache\n", nfsi);
diff --git a/fs/nfs/fscache.h b/fs/nfs/fscache.h
index ad041cfbf9ec..6754c8607230 100644
--- a/fs/nfs/fscache.h
+++ b/fs/nfs/fscache.h
@@ -62,9 +62,11 @@ struct nfs_fscache_key {
* cache object.
*/
struct nfs_fscache_inode_auxdata {
- struct timespec mtime;
- struct timespec ctime;
- u64 change_attr;
+ s64 mtime_sec;
+ s64 mtime_nsec;
+ s64 ctime_sec;
+ s64 ctime_nsec;
+ u64 change_attr;
};
/*
--
2.20.0
next prev parent reply other threads:[~2019-11-11 20:22 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-11 20:16 [PATCH 00/19] nfs, nfsd: avoid 32-bit time_t Arnd Bergmann
2019-11-11 20:16 ` [PATCH 01/19] sunrpc: convert to time64_t for expiry Arnd Bergmann
2019-11-15 22:10 ` J. Bruce Fields
2019-11-11 20:16 ` [PATCH 02/19] nfs: use time64_t internally Arnd Bergmann
2019-11-11 20:16 ` [PATCH 03/19] nfs: use timespec64 in nfs_fattr Arnd Bergmann
2019-11-11 20:16 ` [PATCH 04/19] nfs: callback: use timespec64 in cb_getattrres Arnd Bergmann
2019-11-11 20:16 ` Arnd Bergmann [this message]
2019-11-11 20:16 ` [PATCH 06/19] nfs: remove timespec from xdr_encode_nfstime Arnd Bergmann
2019-11-11 20:16 ` [PATCH 07/19] nfs: encode nfsv4 timestamps as 64-bit Arnd Bergmann
2019-11-11 20:16 ` [PATCH 08/19] nfsd: use ktime_get_seconds() for timestamps Arnd Bergmann
2019-11-11 20:16 ` [PATCH 09/19] nfsd: print 64-bit timestamps in client_info_show Arnd Bergmann
2019-11-11 20:16 ` [PATCH 10/19] nfsd: handle nfs3 timestamps as unsigned Arnd Bergmann
2019-11-11 20:16 ` [PATCH 11/19] nfsd: use timespec64 in encode_time_delta Arnd Bergmann
2019-11-11 20:16 ` [PATCH 12/19] nfsd: make 'boot_time' 64-bit wide Arnd Bergmann
2019-11-11 20:16 ` [PATCH 13/19] nfsd: pass a 64-bit guardtime to nfsd_setattr() Arnd Bergmann
2019-11-11 20:16 ` [PATCH 14/19] nfsd: use time64_t in nfsd_proc_setattr() check Arnd Bergmann
2019-11-11 20:16 ` [PATCH 15/19] nfsd: fix delay timer on 32-bit architectures Arnd Bergmann
2019-11-11 20:16 ` [PATCH 16/19] nfsd: fix jiffies/time_t mixup in LRU list Arnd Bergmann
2019-11-11 20:16 ` [PATCH 17/19] nfsd: use boottime for lease expiry alculation Arnd Bergmann
2019-11-11 20:16 ` [PATCH 18/19] nfsd: use ktime_get_real_seconds() in nfs4_verifier Arnd Bergmann
2019-11-11 20:16 ` [PATCH 19/19] nfsd: remove nfs4_reset_lease() declarations Arnd Bergmann
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