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bf4afc53b7
This was done entirely with mindless brute force, using
git grep -l '\<k[vmz]*alloc_objs*(.*, GFP_KERNEL)' |
xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/'
to convert the new alloc_obj() users that had a simple GFP_KERNEL
argument to just drop that argument.
Note that due to the extreme simplicity of the scripting, any slightly
more complex cases spread over multiple lines would not be triggered:
they definitely exist, but this covers the vast bulk of the cases, and
the resulting diff is also then easier to check automatically.
For the same reason the 'flex' versions will be done as a separate
conversion.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
91 lines
1.9 KiB
C
91 lines
1.9 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (c) 2013
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* Phillip Lougher <phillip@squashfs.org.uk>
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*/
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#include <linux/types.h>
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#include <linux/mutex.h>
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#include <linux/slab.h>
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#include <linux/bio.h>
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#include "squashfs_fs.h"
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#include "squashfs_fs_sb.h"
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#include "decompressor.h"
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#include "squashfs.h"
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/*
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* This file implements single-threaded decompression in the
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* decompressor framework
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*/
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struct squashfs_stream {
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void *stream;
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struct mutex mutex;
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};
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static void *squashfs_decompressor_create(struct squashfs_sb_info *msblk,
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void *comp_opts)
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{
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struct squashfs_stream *stream;
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int err = -ENOMEM;
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stream = kmalloc_obj(*stream);
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if (stream == NULL)
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goto out;
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stream->stream = msblk->decompressor->init(msblk, comp_opts);
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if (IS_ERR(stream->stream)) {
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err = PTR_ERR(stream->stream);
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goto out;
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}
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kfree(comp_opts);
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mutex_init(&stream->mutex);
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return stream;
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out:
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kfree(stream);
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return ERR_PTR(err);
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}
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static void squashfs_decompressor_destroy(struct squashfs_sb_info *msblk)
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{
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struct squashfs_stream *stream = msblk->stream;
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if (stream) {
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msblk->decompressor->free(stream->stream);
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kfree(stream);
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}
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}
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static int squashfs_decompress(struct squashfs_sb_info *msblk, struct bio *bio,
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int offset, int length,
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struct squashfs_page_actor *output)
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{
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int res;
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struct squashfs_stream *stream = msblk->stream;
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mutex_lock(&stream->mutex);
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res = msblk->decompressor->decompress(msblk, stream->stream, bio,
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offset, length, output);
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mutex_unlock(&stream->mutex);
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if (res < 0)
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ERROR("%s decompression failed, data probably corrupt\n",
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msblk->decompressor->name);
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return res;
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}
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static int squashfs_max_decompressors(void)
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{
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return 1;
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}
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const struct squashfs_decompressor_thread_ops squashfs_decompressor_single = {
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.create = squashfs_decompressor_create,
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.destroy = squashfs_decompressor_destroy,
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.decompress = squashfs_decompress,
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.max_decompressors = squashfs_max_decompressors,
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};
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