Revision 19cba8abd6ca09527c194864ae651db65cbacfe1 authored by Latchesar Ionkov on 11 October 2005, 15:29:03 UTC, committed by Linus Torvalds on 11 October 2005, 16:46:54 UTC
v9fs_file_read and v9fs_file_write use kmalloc to allocate buffers as big as the data buffer received as parameter. kmalloc cannot be used to allocate buffers bigger than 128K, so reading/writing data in chunks bigger than 128k fails. This patch reorganizes v9fs_file_read and v9fs_file_write to allocate only buffers as big as the maximum data that can be sent in one 9P message. Signed-off-by: Latchesar Ionkov <lucho@ionkov.net> Cc: Eric Van Hensbergen <ericvh@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
1 parent ad6ce87
file.c
/*
* linux/fs/ufs/file.c
*
* Copyright (C) 1998
* Daniel Pirkl <daniel.pirkl@email.cz>
* Charles University, Faculty of Mathematics and Physics
*
* from
*
* linux/fs/ext2/file.c
*
* Copyright (C) 1992, 1993, 1994, 1995
* Remy Card (card@masi.ibp.fr)
* Laboratoire MASI - Institut Blaise Pascal
* Universite Pierre et Marie Curie (Paris VI)
*
* from
*
* linux/fs/minix/file.c
*
* Copyright (C) 1991, 1992 Linus Torvalds
*
* ext2 fs regular file handling primitives
*/
#include <asm/uaccess.h>
#include <asm/system.h>
#include <linux/errno.h>
#include <linux/fs.h>
#include <linux/ufs_fs.h>
#include <linux/fcntl.h>
#include <linux/time.h>
#include <linux/stat.h>
#include <linux/mm.h>
#include <linux/pagemap.h>
#include <linux/smp_lock.h>
/*
* We have mostly NULL's here: the current defaults are ok for
* the ufs filesystem.
*/
struct file_operations ufs_file_operations = {
.llseek = generic_file_llseek,
.read = generic_file_read,
.write = generic_file_write,
.mmap = generic_file_mmap,
.open = generic_file_open,
.sendfile = generic_file_sendfile,
};
struct inode_operations ufs_file_inode_operations = {
.truncate = ufs_truncate,
};
Computing file changes ...
