Btrfs: remove crc32c.h and use libcrc32c directly.
There's no need to preserve this abstraction; it used to let us use hardware crc32c support directly, but libcrc32c is already doing that for us through the crypto API -- so we're already using the Intel crc32c acceleration where appropriate. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
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6cbff00f46
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163e783e6a
4 changed files with 7 additions and 37 deletions
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@ -1,29 +0,0 @@
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/*
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* Copyright (C) 2008 Oracle. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License v2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this program; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 021110-1307, USA.
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*/
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#ifndef __BTRFS_CRC32C__
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#define __BTRFS_CRC32C__
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#include <linux/crc32c.h>
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/*
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* this file used to do more for selecting the HW version of crc32c,
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* perhaps it will one day again soon.
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*/
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#define btrfs_crc32c(seed, data, length) crc32c(seed, data, length)
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#endif
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@ -26,8 +26,8 @@
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#include <linux/workqueue.h>
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#include <linux/kthread.h>
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#include <linux/freezer.h>
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#include <linux/crc32c.h>
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#include "compat.h"
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#include "crc32c.h"
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#include "ctree.h"
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#include "disk-io.h"
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#include "transaction.h"
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@ -171,7 +171,7 @@ static struct extent_map *btree_get_extent(struct inode *inode,
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u32 btrfs_csum_data(struct btrfs_root *root, char *data, u32 seed, size_t len)
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{
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return btrfs_crc32c(seed, data, len);
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return crc32c(seed, data, len);
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}
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void btrfs_csum_final(u32 crc, char *result)
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@ -23,7 +23,6 @@
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#include <linux/rcupdate.h>
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#include "compat.h"
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#include "hash.h"
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#include "crc32c.h"
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#include "ctree.h"
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#include "disk-io.h"
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#include "print-tree.h"
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@ -625,11 +624,11 @@ static u64 hash_extent_data_ref(u64 root_objectid, u64 owner, u64 offset)
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__le64 lenum;
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lenum = cpu_to_le64(root_objectid);
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high_crc = btrfs_crc32c(high_crc, &lenum, sizeof(lenum));
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high_crc = crc32c(high_crc, &lenum, sizeof(lenum));
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lenum = cpu_to_le64(owner);
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low_crc = btrfs_crc32c(low_crc, &lenum, sizeof(lenum));
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low_crc = crc32c(low_crc, &lenum, sizeof(lenum));
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lenum = cpu_to_le64(offset);
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low_crc = btrfs_crc32c(low_crc, &lenum, sizeof(lenum));
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low_crc = crc32c(low_crc, &lenum, sizeof(lenum));
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return ((u64)high_crc << 31) ^ (u64)low_crc;
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}
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@ -19,9 +19,9 @@
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#ifndef __HASH__
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#define __HASH__
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#include "crc32c.h"
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#include <linux/crc32c.h>
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static inline u64 btrfs_name_hash(const char *name, int len)
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{
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return btrfs_crc32c((u32)~1, name, len);
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return crc32c((u32)~1, name, len);
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}
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#endif
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