/* * Copyright (c) 2013 * Phillip Lougher * * This work is licensed under the terms of the GNU GPL, version 2. See * the COPYING file in the top-level directory. */ #include #include #include #include #include "squashfs_fs.h" #include "squashfs_fs_sb.h" #include "decompressor.h" #include "squashfs.h" /* * This file implements multi-threaded decompression using percpu * variables, one thread per cpu core. */ struct squashfs_stream { void *stream; }; void *squashfs_decompressor_create(struct squashfs_sb_info *msblk, void *comp_opts) { struct squashfs_stream *stream; struct squashfs_stream __percpu *percpu; int err, cpu; percpu = alloc_percpu(struct squashfs_stream); if (percpu == NULL) return ERR_PTR(-ENOMEM); for_each_possible_cpu(cpu) { stream = per_cpu_ptr(percpu, cpu); stream->stream = msblk->decompressor->init(msblk, comp_opts); if (IS_ERR(stream->stream)) { err = PTR_ERR(stream->stream); goto out; } } kfree(comp_opts); return (__force void *) percpu; out: for_each_possible_cpu(cpu) { stream = per_cpu_ptr(percpu, cpu); if (!IS_ERR_OR_NULL(stream->stream)) msblk->decompressor->free(stream->stream); } free_percpu(percpu); return ERR_PTR(err); } void squashfs_decompressor_destroy(struct squashfs_sb_info *msblk) { struct squashfs_stream __percpu *percpu = (struct squashfs_stream __percpu *) msblk->stream; struct squashfs_stream *stream; int cpu; if (msblk->stream) { for_each_possible_cpu(cpu) { stream = per_cpu_ptr(percpu, cpu); msblk->decompressor->free(stream->stream); } free_percpu(percpu); } } int squashfs_decompress(struct squashfs_sb_info *msblk, struct buffer_head **bh, int b, int offset, int length, struct squashfs_page_actor *output) { struct squashfs_stream __percpu *percpu = (struct squashfs_stream __percpu *) msblk->stream; struct squashfs_stream *stream = get_cpu_ptr(percpu); int res = msblk->decompressor->decompress(msblk, stream->stream, bh, b, offset, length, output); put_cpu_ptr(stream); if (res < 0) ERROR("%s decompression failed, data probably corrupt\n", msblk->decompressor->name); return res; } int squashfs_max_decompressors(void) { return num_possible_cpus(); } sg
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authorLokesh Vutla <lokeshvutla@ti.com>2016-11-10 10:59:15 +0530
committerMark Brown <broonie@kernel.org>2016-11-11 15:36:38 +0000
commit205321f0927ad2303e7f71767d402e0ff36a9a87 (patch)
treefc103f416e5df36a8a2a6c5d88f24f4f6c5a65bc /net/sunrpc/xdr.c
parent1001354ca34179f3db924eb66672442a173147dc (diff)
regulator: lp873x: Add support for populating input supply
In order to have a proper topology of regulators for a platform, each registering regulator needs to populate supply_name field for identifying its supply's name. Add supply_name field for lp873x regulators. Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Acked-for-MFD-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'net/sunrpc/xdr.c')