[v4,04/12] btrfs-progs: don't assume checksums are always 4 bytes

Message ID	20190903150046.14926-5-jthumshirn@suse.de (mailing list archive)
State	New, archived
Headers	show Return-Path: <SRS0=cRuQ=W6=vger.kernel.org=linux-btrfs-owner@kernel.org> From: Johannes Thumshirn <jthumshirn@suse.de> To: David Sterba <dsterba@suse.com> Cc: Linux BTRFS Mailinglist <linux-btrfs@vger.kernel.org>, Johannes Thumshirn <jthumshirn@suse.de> Subject: [PATCH v4 04/12] btrfs-progs: don't assume checksums are always 4 bytes Date: Tue, 3 Sep 2019 17:00:38 +0200 Message-Id: <20190903150046.14926-5-jthumshirn@suse.de> In-Reply-To: <20190903150046.14926-1-jthumshirn@suse.de> References: <20190903150046.14926-1-jthumshirn@suse.de> Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk
Series	btrfs-progs: support xxhash64 checksums \| expand [v4,00/12] btrfs-progs: support xxhash64 checksums [v4,01/12] btrfs-progs: don't blindly assume crc32c in csum_tree_block_size() [v4,02/12] btrfs-progs: cache csum_type in recover_control [v4,03/12] btrfs-progs: add checksum type to checksumming functions [v4,04/12] btrfs-progs: don't assume checksums are always 4 bytes [v4,05/12] btrfs-progs: pass checksum type to btrfs_csum_data()/btrfs_csum_final() [v4,06/12] btrfs-progs: simplify update_block_csum() in btrfs-sb-mod.c [v4,07/12] btrfs-progs: update checksumming api [v4,08/12] btrfs-progs: add option for checksum type to mkfs [v4,09/12] btrfs-progs: add xxhash sources [v4,10/12] btrfs-progs: add xxhash64 as checksum algorithm [v4,11/12] btrfs-progs: move crc32c implementation to crypto/ [v4,12/12] btrfs-progs: add test-case for mkfs with xxhash64

diff --git a/btrfs-sb-mod.c b/btrfs-sb-mod.c index 16a26f772494..932c2a0432ef 100644 --- a/btrfs-sb-mod.c +++ b/btrfs-sb-mod.c @@ -37,7 +37,8 @@ static int check_csum_superblock(void *sb) u32 crc = ~(u32)0; crc = btrfs_csum_data((char *)sb + BTRFS_CSUM_SIZE, - crc, BTRFS_SUPER_INFO_SIZE - BTRFS_CSUM_SIZE); + (u8 *)&crc, + BTRFS_SUPER_INFO_SIZE - BTRFS_CSUM_SIZE); btrfs_csum_final(crc, result); return !memcmp(sb, &result, csum_size); @@ -50,10 +51,12 @@ static void update_block_csum(void *block, int is_sb) u32 crc = ~(u32)0; if (is_sb) { - crc = btrfs_csum_data((char *)block + BTRFS_CSUM_SIZE, crc, + crc = btrfs_csum_data((char *)block + BTRFS_CSUM_SIZE, + (u8 *)&crc, BTRFS_SUPER_INFO_SIZE - BTRFS_CSUM_SIZE); } else { - crc = btrfs_csum_data((char *)block + BTRFS_CSUM_SIZE, crc, + crc = btrfs_csum_data((char *)block + BTRFS_CSUM_SIZE, + (u8 *)&crc, BLOCKSIZE - BTRFS_CSUM_SIZE); } btrfs_csum_final(crc, result); diff --git a/check/main.c b/check/main.c index 2e16b4e6f05b..0f02c85368ec 100644 --- a/check/main.c +++ b/check/main.c @@ -5660,7 +5660,7 @@ static int check_extent_csums(struct btrfs_root *root, u64 bytenr, tmp = offset + data_checked; csum = btrfs_csum_data((char *)data + tmp, - csum, fs_info->sectorsize); + (u8 *)&csum, fs_info->sectorsize); btrfs_csum_final(csum, (u8 *)&csum); csum_offset = leaf_offset + diff --git a/cmds/inspect-dump-super.c b/cmds/inspect-dump-super.c index 65fb3506eac6..96ad3deca3d8 100644 --- a/cmds/inspect-dump-super.c +++ b/cmds/inspect-dump-super.c @@ -41,7 +41,8 @@ static int check_csum_sblock(void *sb, int csum_size) u32 crc = ~(u32)0; crc = btrfs_csum_data((char *)sb + BTRFS_CSUM_SIZE, - crc, BTRFS_SUPER_INFO_SIZE - BTRFS_CSUM_SIZE); + (u8 *)&crc, + BTRFS_SUPER_INFO_SIZE - BTRFS_CSUM_SIZE); btrfs_csum_final(crc, result); return !memcmp(sb, &result, csum_size); diff --git a/cmds/rescue-chunk-recover.c b/cmds/rescue-chunk-recover.c index c2a26ad040ee..37c024ed8965 100644 --- a/cmds/rescue-chunk-recover.c +++ b/cmds/rescue-chunk-recover.c @@ -1902,7 +1902,7 @@ static int check_one_csum(int fd, u64 start, u32 len, u32 tree_csum) goto out; } ret = 0; - csum_result = btrfs_csum_data(data, csum_result, len); + csum_result = btrfs_csum_data(data, (u8 *)&csum_result, len); btrfs_csum_final(csum_result, (u8 *)&csum_result); if (csum_result != tree_csum) ret = 1; diff --git a/convert/common.c b/convert/common.c index f8bbb23cba89..ab8e6b9f4749 100644 --- a/convert/common.c +++ b/convert/common.c @@ -65,7 +65,8 @@ static inline int write_temp_super(int fd, struct btrfs_super_block *sb, u32 crc = ~(u32)0; int ret; - crc = btrfs_csum_data((char *)sb + BTRFS_CSUM_SIZE, crc, + crc = btrfs_csum_data((char *)sb + BTRFS_CSUM_SIZE, + (u8 *)&crc, BTRFS_SUPER_INFO_SIZE - BTRFS_CSUM_SIZE); btrfs_csum_final(crc, &sb->csum[0]); ret = pwrite(fd, sb, BTRFS_SUPER_INFO_SIZE, sb_bytenr); diff --git a/disk-io.c b/disk-io.c index a4995a628210..a0c37c569d58 100644 --- a/disk-io.c +++ b/disk-io.c @@ -138,9 +138,9 @@ static void print_tree_block_error(struct btrfs_fs_info *fs_info, } } -u32 btrfs_csum_data(char *data, u32 seed, size_t len) +u32 btrfs_csum_data(char *data, u8 *seed, size_t len) { - return crc32c(seed, data, len); + return crc32c(*(u32*)seed, data, len); } void btrfs_csum_final(u32 crc, u8 *result) @@ -156,7 +156,7 @@ static int __csum_tree_block_size(struct extent_buffer *buf, u16 csum_size, u32 crc = ~(u32)0; len = buf->len - BTRFS_CSUM_SIZE; - crc = btrfs_csum_data(buf->data + BTRFS_CSUM_SIZE, crc, len); + crc = btrfs_csum_data(buf->data + BTRFS_CSUM_SIZE, (u8 *)&crc, len); btrfs_csum_final(crc, result); if (verify) { @@ -1376,7 +1376,7 @@ int btrfs_check_super(struct btrfs_super_block *sb, unsigned sbflags) csum_size = btrfs_csum_sizes[csum_type]; crc = ~(u32)0; - crc = btrfs_csum_data((char *)sb + BTRFS_CSUM_SIZE, crc, + crc = btrfs_csum_data((char *)sb + BTRFS_CSUM_SIZE, (u8 *)&crc, BTRFS_SUPER_INFO_SIZE - BTRFS_CSUM_SIZE); btrfs_csum_final(crc, result); @@ -1631,7 +1631,7 @@ static int write_dev_supers(struct btrfs_fs_info *fs_info, if (fs_info->super_bytenr != BTRFS_SUPER_INFO_OFFSET) { btrfs_set_super_bytenr(sb, fs_info->super_bytenr); crc = ~(u32)0; - crc = btrfs_csum_data((char *)sb + BTRFS_CSUM_SIZE, crc, + crc = btrfs_csum_data((char *)sb + BTRFS_CSUM_SIZE, (u8 *)&crc, BTRFS_SUPER_INFO_SIZE - BTRFS_CSUM_SIZE); btrfs_csum_final(crc, &sb->csum[0]); @@ -1667,7 +1667,7 @@ static int write_dev_supers(struct btrfs_fs_info *fs_info, btrfs_set_super_bytenr(sb, bytenr); crc = ~(u32)0; - crc = btrfs_csum_data((char *)sb + BTRFS_CSUM_SIZE, crc, + crc = btrfs_csum_data((char *)sb + BTRFS_CSUM_SIZE, (u8 *)&crc, BTRFS_SUPER_INFO_SIZE - BTRFS_CSUM_SIZE); btrfs_csum_final(crc, &sb->csum[0]); diff --git a/disk-io.h b/disk-io.h index 394997ad72cb..92c87f28f8b2 100644 --- a/disk-io.h +++ b/disk-io.h @@ -186,7 +186,7 @@ int btrfs_free_fs_root(struct btrfs_root *root); void btrfs_mark_buffer_dirty(struct extent_buffer *buf); int btrfs_buffer_uptodate(struct extent_buffer *buf, u64 parent_transid); int btrfs_set_buffer_uptodate(struct extent_buffer *buf); -u32 btrfs_csum_data(char *data, u32 seed, size_t len); +u32 btrfs_csum_data(char *data, u8 *seed, size_t len); void btrfs_csum_final(u32 crc, u8 *result); int btrfs_open_device(struct btrfs_device *dev); diff --git a/file-item.c b/file-item.c index 3bf48c68913d..5f6548e9a74f 100644 --- a/file-item.c +++ b/file-item.c @@ -312,7 +312,7 @@ csum: item = (struct btrfs_csum_item *)((unsigned char *)item + csum_offset * csum_size); found: - csum_result = btrfs_csum_data(data, csum_result, len); + csum_result = btrfs_csum_data(data, (u8 *)&csum_result, len); btrfs_csum_final(csum_result, (u8 *)&csum_result); if (csum_result == 0) { printk("csum result is 0 for block %llu\n",

[v4,04/12] btrfs-progs: don't assume checksums are always 4 bytes

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