2021-10-07 22:34:17

by David Wysochanski

[permalink] [raw]
Subject: [PATCH v2 2/7] NFS: Cleanup usage of nfs_inode in fscache interface and handle i_size properly

A number of places in the fscache interface used nfs_inode when inode could
be used, simplifying the code. Also, handle the read of i_size properly by
utilizing the i_size_read() interface.

Signed-off-by: Dave Wysochanski <[email protected]>
---
fs/nfs/fscache.c | 24 ++++++++++++------------
1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/fs/nfs/fscache.c b/fs/nfs/fscache.c
index 68e266a37675..6764938eca2d 100644
--- a/fs/nfs/fscache.c
+++ b/fs/nfs/fscache.c
@@ -226,16 +226,16 @@ void nfs_fscache_release_super_cookie(struct super_block *sb)
}

static void nfs_fscache_update_auxdata(struct nfs_fscache_inode_auxdata *auxdata,
- struct nfs_inode *nfsi)
+ struct inode *inode)
{
memset(auxdata, 0, sizeof(*auxdata));
- 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;
+ auxdata->mtime_sec = inode->i_mtime.tv_sec;
+ auxdata->mtime_nsec = inode->i_mtime.tv_nsec;
+ auxdata->ctime_sec = inode->i_ctime.tv_sec;
+ auxdata->ctime_nsec = 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);
+ if (NFS_SERVER(inode)->nfs_client->rpc_ops->version == 4)
+ auxdata->change_attr = inode_peek_iversion_raw(inode);
}

/*
@@ -251,13 +251,13 @@ void nfs_fscache_init_inode(struct inode *inode)
if (!(nfss->fscache && S_ISREG(inode->i_mode)))
return;

- nfs_fscache_update_auxdata(&auxdata, nfsi);
+ nfs_fscache_update_auxdata(&auxdata, inode);

nfsi->fscache = fscache_acquire_cookie(NFS_SB(inode->i_sb)->fscache,
&nfs_fscache_inode_object_def,
nfsi->fh.data, nfsi->fh.size,
&auxdata, sizeof(auxdata),
- nfsi, nfsi->vfs_inode.i_size, false);
+ nfsi, i_size_read(inode), false);
}

/*
@@ -271,7 +271,7 @@ void nfs_fscache_clear_inode(struct inode *inode)

dfprintk(FSCACHE, "NFS: clear cookie (0x%p/0x%p)\n", nfsi, cookie);

- nfs_fscache_update_auxdata(&auxdata, nfsi);
+ nfs_fscache_update_auxdata(&auxdata, inode);
fscache_relinquish_cookie(cookie, &auxdata, false);
nfsi->fscache = NULL;
}
@@ -311,7 +311,7 @@ void nfs_fscache_open_file(struct inode *inode, struct file *filp)
if (!fscache_cookie_valid(cookie))
return;

- nfs_fscache_update_auxdata(&auxdata, nfsi);
+ nfs_fscache_update_auxdata(&auxdata, inode);

if (inode_is_open_for_write(inode)) {
dfprintk(FSCACHE, "NFS: nfsi 0x%p disabling cache\n", nfsi);
@@ -319,7 +319,7 @@ void nfs_fscache_open_file(struct inode *inode, struct file *filp)
fscache_disable_cookie(cookie, &auxdata, true);
} else {
dfprintk(FSCACHE, "NFS: nfsi 0x%p enabling cache\n", nfsi);
- fscache_enable_cookie(cookie, &auxdata, nfsi->vfs_inode.i_size,
+ fscache_enable_cookie(cookie, &auxdata, i_size_read(inode),
nfs_fscache_can_enable, inode);
if (fscache_cookie_enabled(cookie))
set_bit(NFS_INO_FSCACHE, &NFS_I(inode)->flags);
--
1.8.3.1