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From: David Sterba <dsterba@suse.cz>
To: Johannes Thumshirn <jthumshirn@suse.de>
Cc: Linux BTRFS Mailinglist <linux-btrfs@vger.kernel.org>
Subject: Re: [PATCH 15/17] btrfs: remove assumption about csum type form btrfs_csum_{data,final}()
Date: Mon, 13 May 2019 14:56:49 +0200	[thread overview]
Message-ID: <20190513125649.GC20156@suse.cz> (raw)
In-Reply-To: <20190510111547.15310-16-jthumshirn@suse.de>

On Fri, May 10, 2019 at 01:15:45PM +0200, Johannes Thumshirn wrote:
> btrfs_csum_data() and btrfs_csum_final() still have assumptions on the
> checksums' type and size. Remove it so we can plumb in more types.
> 
> Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
> ---
>  fs/btrfs/check-integrity.c |  6 ++---
>  fs/btrfs/compression.c     | 13 ++++++-----
>  fs/btrfs/disk-io.c         | 58 +++++++++++++++++++++++++---------------------
>  fs/btrfs/disk-io.h         |  6 ++---
>  fs/btrfs/file-item.c       | 13 +++++------
>  fs/btrfs/inode.c           | 18 +++++++-------
>  fs/btrfs/scrub.c           | 20 +++++++++-------
>  7 files changed, 72 insertions(+), 62 deletions(-)
> 
> diff --git a/fs/btrfs/check-integrity.c b/fs/btrfs/check-integrity.c
> index 6aad0c3d197f..54c8a549b505 100644
> --- a/fs/btrfs/check-integrity.c
> +++ b/fs/btrfs/check-integrity.c
> @@ -1712,7 +1712,6 @@ static int btrfsic_test_for_metadata(struct btrfsic_state *state,
>  	struct btrfs_fs_info *fs_info = state->fs_info;
>  	struct btrfs_header *h;
>  	u8 csum[BTRFS_CSUM_SIZE];
> -	u32 crc = ~(u32)0;
>  	unsigned int i;
>  
>  	if (num_pages * PAGE_SIZE < state->metablock_size)
> @@ -1723,14 +1722,15 @@ static int btrfsic_test_for_metadata(struct btrfsic_state *state,
>  	if (memcmp(h->fsid, fs_info->fs_devices->fsid, BTRFS_FSID_SIZE))
>  		return 1;
>  
> +	memset(csum, 0xff, btrfs_super_csum_size(fs_info->super_copy));

This should be added to the csum API as eg. btrfs_csum_init and not
opencoded.

  reply	other threads:[~2019-05-13 12:55 UTC|newest]

Thread overview: 60+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-10 11:15 [PATCH 00/17] Add support for SHA-256 checksums Johannes Thumshirn
2019-05-10 11:15 ` [PATCH 01/17] btrfs: use btrfs_csum_data() instead of directly calling crc32c Johannes Thumshirn
2019-05-10 16:16   ` Nikolay Borisov
2019-05-10 11:15 ` [PATCH 02/17] btrfs: resurrect btrfs_crc32c() Johannes Thumshirn
2019-05-10 16:16   ` Nikolay Borisov
2019-05-10 11:15 ` [PATCH 03/17] btrfs: use btrfs_crc32c() instead of btrfs_extref_hash() Johannes Thumshirn
2019-05-10 13:03   ` Nikolay Borisov
2019-05-10 11:15 ` [PATCH 04/17] btrfs: use btrfs_crc32c() instead of btrfs_name_hash() Johannes Thumshirn
2019-05-10 12:56   ` Chris Mason
2019-05-13  7:04     ` Johannes Thumshirn
2019-05-10 11:15 ` [PATCH 05/17] btrfs: don't assume ordered sums to be 4 bytes Johannes Thumshirn
2019-05-10 13:25   ` Nikolay Borisov
2019-05-10 13:27     ` Nikolay Borisov
2019-05-13  7:06       ` Johannes Thumshirn
2019-05-10 11:15 ` [PATCH 06/17] btrfs: dont assume compressed_bio " Johannes Thumshirn
2019-05-10 11:15 ` [PATCH 07/17] btrfs: use btrfs_crc32c{,_final}() in for free space cache Johannes Thumshirn
2019-05-10 13:27   ` Nikolay Borisov
2019-05-10 11:15 ` [PATCH 08/17] btrfs: format checksums according to type for printing Johannes Thumshirn
2019-05-10 13:28   ` Nikolay Borisov
2019-05-10 11:15 ` [PATCH 09/17] btrfs: add common checksum type validation Johannes Thumshirn
2019-05-10 13:37   ` Nikolay Borisov
2019-05-10 11:15 ` [PATCH 10/17] btrfs: check for supported superblock checksum type before checksum validation Johannes Thumshirn
2019-05-10 13:37   ` Nikolay Borisov
2019-05-10 11:15 ` [PATCH 11/17] btrfs: Simplify btrfs_check_super_csum() and get rid of size assumptions Johannes Thumshirn
2019-05-10 13:41   ` Nikolay Borisov
2019-05-10 11:15 ` [PATCH 12/17] btrfs: add boilerplate code for directly including the crypto framework Johannes Thumshirn
2019-05-10 16:28   ` Nikolay Borisov
2019-05-10 11:15 ` [PATCH 13/17] btrfs: pass in an fs_info to btrfs_csum_{data,final}() Johannes Thumshirn
2019-05-10 11:15 ` [PATCH 14/17] btrfs: directly call into crypto framework for checsumming Johannes Thumshirn
2019-05-10 13:45   ` Chris Mason
2019-05-10 13:54     ` Chris Mason
2019-05-13  7:17       ` Johannes Thumshirn
2019-05-13 13:55         ` Chris Mason
2019-05-14 12:46     ` Johannes Thumshirn
2019-05-13 13:00   ` David Sterba
2019-05-13 13:01     ` Johannes Thumshirn
2019-05-13 14:30       ` David Sterba
2019-05-10 11:15 ` [PATCH 15/17] btrfs: remove assumption about csum type form btrfs_csum_{data,final}() Johannes Thumshirn
2019-05-13 12:56   ` David Sterba [this message]
2019-05-10 11:15 ` [PATCH 16/17] btrfs: remove assumption about csum type form btrfs_print_data_csum_error() Johannes Thumshirn
2019-05-10 11:15 ` [PATCH 17/17] btrfs: add sha256 as another checksum algorithm Johannes Thumshirn
2019-05-10 12:30   ` Nikolay Borisov
2019-05-13  7:11     ` Johannes Thumshirn
2019-05-13 12:54       ` David Sterba
2019-05-13 12:55         ` Johannes Thumshirn
2019-05-15  1:45         ` Jeff Mahoney
2019-05-13 12:55     ` David Sterba
2019-05-13 12:58       ` Johannes Thumshirn
2019-05-15 17:27 ` [PATCH 00/17] Add support for SHA-256 checksums David Sterba
2019-05-16  6:30   ` Paul Jones
2019-05-16  8:16     ` Nikolay Borisov
2019-05-16  8:20       ` Johannes Thumshirn
2019-05-17 18:36   ` Diego Calleja
2019-05-17 19:07     ` Johannes Thumshirn
2019-05-18  0:38       ` Adam Borowski
2019-05-20  7:47         ` Johannes Thumshirn
2019-05-20 11:34           ` Austin S. Hemmelgarn
2019-05-20 11:57             ` Johannes Thumshirn
2019-05-20 11:42     ` Austin S. Hemmelgarn
2019-05-30 12:21     ` David Sterba

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