From a36159eec6ca17402b0e146b86efaf76568dc353 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 20 Sep 2024 01:41:23 +0000
Subject: [PATCH] 重命名 AX88772C_eeprom/asix.c 为 asix_mac.c
---
kernel/fs/ocfs2/dlmfs/dlmfs.c | 115 ++++++++++++---------------------------------------------
1 files changed, 24 insertions(+), 91 deletions(-)
diff --git a/kernel/fs/ocfs2/dlmfs/dlmfs.c b/kernel/fs/ocfs2/dlmfs/dlmfs.c
index 602c71f..5b3a868 100644
--- a/kernel/fs/ocfs2/dlmfs/dlmfs.c
+++ b/kernel/fs/ocfs2/dlmfs/dlmfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/* -*- mode: c; c-basic-offset: 8; -*-
* vim: noexpandtab sw=8 ts=8 sts=0:
*
@@ -9,21 +10,6 @@
* which was a template for the fs side of this module.
*
* Copyright (C) 2003, 2004 Oracle. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public
- * License along with this program; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 021110-1307, USA.
*/
/* Simple VFS hooks based on: */
@@ -47,11 +33,11 @@
#include <linux/uaccess.h>
-#include "stackglue.h"
+#include "../stackglue.h"
#include "userdlm.h"
#define MLOG_MASK_PREFIX ML_DLMFS
-#include "cluster/masklog.h"
+#include "../cluster/masklog.h"
static const struct super_operations dlmfs_ops;
@@ -179,7 +165,7 @@
static int dlmfs_file_release(struct inode *inode,
struct file *file)
{
- int level, status;
+ int level;
struct dlmfs_inode_private *ip = DLMFS_I(inode);
struct dlmfs_filp_private *fp = file->private_data;
@@ -188,7 +174,6 @@
mlog(0, "close called on inode %lu\n", inode->i_ino);
- status = 0;
if (fp) {
level = fp->fp_lock_level;
if (level != DLM_LOCK_IV)
@@ -236,52 +221,17 @@
return event;
}
-static ssize_t dlmfs_file_read(struct file *filp,
+static ssize_t dlmfs_file_read(struct file *file,
char __user *buf,
size_t count,
loff_t *ppos)
{
- int bytes_left;
- ssize_t readlen, got;
- char *lvb_buf;
- struct inode *inode = file_inode(filp);
+ char lvb[DLM_LVB_LEN];
- mlog(0, "inode %lu, count = %zu, *ppos = %llu\n",
- inode->i_ino, count, *ppos);
-
- if (*ppos >= i_size_read(inode))
+ if (!user_dlm_read_lvb(file_inode(file), lvb))
return 0;
- if (!count)
- return 0;
-
- if (!access_ok(VERIFY_WRITE, buf, count))
- return -EFAULT;
-
- /* don't read past the lvb */
- if ((count + *ppos) > i_size_read(inode))
- readlen = i_size_read(inode) - *ppos;
- else
- readlen = count;
-
- lvb_buf = kmalloc(readlen, GFP_NOFS);
- if (!lvb_buf)
- return -ENOMEM;
-
- got = user_dlm_read_lvb(inode, lvb_buf, readlen);
- if (got) {
- BUG_ON(got != readlen);
- bytes_left = __copy_to_user(buf, lvb_buf, readlen);
- readlen -= bytes_left;
- } else
- readlen = 0;
-
- kfree(lvb_buf);
-
- *ppos = *ppos + readlen;
-
- mlog(0, "read %zd bytes\n", readlen);
- return readlen;
+ return simple_read_from_buffer(buf, count, ppos, lvb, sizeof(lvb));
}
static ssize_t dlmfs_file_write(struct file *filp,
@@ -289,43 +239,31 @@
size_t count,
loff_t *ppos)
{
+ char lvb_buf[DLM_LVB_LEN];
int bytes_left;
- ssize_t writelen;
- char *lvb_buf;
struct inode *inode = file_inode(filp);
mlog(0, "inode %lu, count = %zu, *ppos = %llu\n",
inode->i_ino, count, *ppos);
- if (*ppos >= i_size_read(inode))
+ if (*ppos >= DLM_LVB_LEN)
return -ENOSPC;
+
+ /* don't write past the lvb */
+ if (count > DLM_LVB_LEN - *ppos)
+ count = DLM_LVB_LEN - *ppos;
if (!count)
return 0;
- if (!access_ok(VERIFY_READ, buf, count))
- return -EFAULT;
+ bytes_left = copy_from_user(lvb_buf, buf, count);
+ count -= bytes_left;
+ if (count)
+ user_dlm_write_lvb(inode, lvb_buf, count);
- /* don't write past the lvb */
- if ((count + *ppos) > i_size_read(inode))
- writelen = i_size_read(inode) - *ppos;
- else
- writelen = count - *ppos;
-
- lvb_buf = kmalloc(writelen, GFP_NOFS);
- if (!lvb_buf)
- return -ENOMEM;
-
- bytes_left = copy_from_user(lvb_buf, buf, writelen);
- writelen -= bytes_left;
- if (writelen)
- user_dlm_write_lvb(inode, lvb_buf, writelen);
-
- kfree(lvb_buf);
-
- *ppos = *ppos + writelen;
- mlog(0, "wrote %zd bytes\n", writelen);
- return writelen;
+ *ppos = *ppos + count;
+ mlog(0, "wrote %zu bytes\n", count);
+ return count;
}
static void dlmfs_init_once(void *foo)
@@ -350,15 +288,9 @@
return &ip->ip_vfs_inode;
}
-static void dlmfs_i_callback(struct rcu_head *head)
+static void dlmfs_free_inode(struct inode *inode)
{
- struct inode *inode = container_of(head, struct inode, i_rcu);
kmem_cache_free(dlmfs_inode_cache, DLMFS_I(inode));
-}
-
-static void dlmfs_destroy_inode(struct inode *inode)
-{
- call_rcu(&inode->i_rcu, dlmfs_i_callback);
}
static void dlmfs_evict_inode(struct inode *inode)
@@ -606,7 +538,7 @@
static const struct super_operations dlmfs_ops = {
.statfs = simple_statfs,
.alloc_inode = dlmfs_alloc_inode,
- .destroy_inode = dlmfs_destroy_inode,
+ .free_inode = dlmfs_free_inode,
.evict_inode = dlmfs_evict_inode,
.drop_inode = generic_delete_inode,
};
@@ -683,6 +615,7 @@
MODULE_AUTHOR("Oracle");
MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
MODULE_DESCRIPTION("OCFS2 DLM-Filesystem");
module_init(init_dlmfs_fs)
--
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