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Diffstat (limited to 'drivers/char/ftape/zftape/zftape-buffers.c')
-rw-r--r--drivers/char/ftape/zftape/zftape-buffers.c149
1 files changed, 0 insertions, 149 deletions
diff --git a/drivers/char/ftape/zftape/zftape-buffers.c b/drivers/char/ftape/zftape/zftape-buffers.c
deleted file mode 100644
index 7ebce2ec789..00000000000
--- a/drivers/char/ftape/zftape/zftape-buffers.c
+++ /dev/null
@@ -1,149 +0,0 @@
-/*
- * Copyright (C) 1995-1997 Claus-Justus Heine.
-
- 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, 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; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
- *
- * $Source: /homes/cvs/ftape-stacked/ftape/zftape/zftape-buffers.c,v $
- * $Revision: 1.2 $
- * $Date: 1997/10/05 19:18:59 $
- *
- * This file contains the dynamic buffer allocation routines
- * of zftape
- */
-
-#include <linux/errno.h>
-#include <linux/mm.h>
-#include <linux/slab.h>
-#include <linux/delay.h>
-
-#include <linux/zftape.h>
-
-#include <linux/vmalloc.h>
-
-#include "../zftape/zftape-init.h"
-#include "../zftape/zftape-eof.h"
-#include "../zftape/zftape-ctl.h"
-#include "../zftape/zftape-write.h"
-#include "../zftape/zftape-read.h"
-#include "../zftape/zftape-rw.h"
-#include "../zftape/zftape-vtbl.h"
-
-/* global variables
- */
-
-/* local varibales
- */
-static unsigned int used_memory;
-static unsigned int peak_memory;
-
-void zft_memory_stats(void)
-{
- TRACE_FUN(ft_t_flow);
-
- TRACE(ft_t_noise, "Memory usage (vmalloc allocations):\n"
- KERN_INFO "total allocated: %d\n"
- KERN_INFO "peak allocation: %d",
- used_memory, peak_memory);
- peak_memory = used_memory;
- TRACE_EXIT;
-}
-
-int zft_vcalloc_once(void *new, size_t size)
-{
- TRACE_FUN(ft_t_flow);
- if (zft_vmalloc_once(new, size) < 0) {
- TRACE_EXIT -ENOMEM;
- }
- memset(*(void **)new, '\0', size);
- TRACE_EXIT 0;
-}
-int zft_vmalloc_once(void *new, size_t size)
-{
- TRACE_FUN(ft_t_flow);
-
- if (*(void **)new != NULL || size == 0) {
- TRACE_EXIT 0;
- }
- if ((*(void **)new = vmalloc(size)) == NULL) {
- TRACE_EXIT -ENOMEM;
- }
- used_memory += size;
- if (peak_memory < used_memory) {
- peak_memory = used_memory;
- }
- TRACE_ABORT(0, ft_t_noise,
- "allocated buffer @ %p, %zd bytes", *(void **)new, size);
-}
-int zft_vmalloc_always(void *new, size_t size)
-{
- TRACE_FUN(ft_t_flow);
-
- zft_vfree(new, size);
- TRACE_EXIT zft_vmalloc_once(new, size);
-}
-void zft_vfree(void *old, size_t size)
-{
- TRACE_FUN(ft_t_flow);
-
- if (*(void **)old) {
- vfree(*(void **)old);
- used_memory -= size;
- TRACE(ft_t_noise, "released buffer @ %p, %zd bytes",
- *(void **)old, size);
- *(void **)old = NULL;
- }
- TRACE_EXIT;
-}
-
-void *zft_kmalloc(size_t size)
-{
- void *new;
-
- while ((new = kmalloc(size, GFP_KERNEL)) == NULL) {
- msleep_interruptible(100);
- }
- memset(new, 0, size);
- used_memory += size;
- if (peak_memory < used_memory) {
- peak_memory = used_memory;
- }
- return new;
-}
-
-void zft_kfree(void *old, size_t size)
-{
- kfree(old);
- used_memory -= size;
-}
-
-/* there are some more buffers that are allocated on demand.
- * cleanup_module() calles this function to be sure to have released
- * them
- */
-void zft_uninit_mem(void)
-{
- TRACE_FUN(ft_t_flow);
-
- zft_vfree(&zft_hseg_buf, FT_SEGMENT_SIZE);
- zft_vfree(&zft_deblock_buf, FT_SEGMENT_SIZE); zft_deblock_segment = -1;
- zft_free_vtbl();
- if (zft_cmpr_lock(0 /* don't load */) == 0) {
- (*zft_cmpr_ops->cleanup)();
- (*zft_cmpr_ops->reset)(); /* unlock it again */
- }
- zft_memory_stats();
- TRACE_EXIT;
-}