From: Hrutvik Kanabar <[email protected]> When `DISABLE_FS_CSUM_VERIFICATION` is enabled, bypass checksum verification.
Signed-off-by: Hrutvik Kanabar <[email protected]> --- fs/btrfs/check-integrity.c | 3 ++- fs/btrfs/disk-io.c | 6 ++++-- fs/btrfs/free-space-cache.c | 3 ++- fs/btrfs/inode.c | 3 ++- fs/btrfs/scrub.c | 9 ++++++--- 5 files changed, 16 insertions(+), 8 deletions(-) diff --git a/fs/btrfs/check-integrity.c b/fs/btrfs/check-integrity.c index 98c6e5feab19..eab82593a325 100644 --- a/fs/btrfs/check-integrity.c +++ b/fs/btrfs/check-integrity.c @@ -1671,7 +1671,8 @@ static noinline_for_stack int btrfsic_test_for_metadata( crypto_shash_update(shash, data, sublen); } crypto_shash_final(shash, csum); - if (memcmp(csum, h->csum, fs_info->csum_size)) + if (!IS_ENABLED(CONFIG_DISABLE_FS_CSUM_VERIFICATION) && + memcmp(csum, h->csum, fs_info->csum_size)) return 1; return 0; /* is metadata */ diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index a2da9313c694..7cd909d44b24 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -184,7 +184,8 @@ static int btrfs_check_super_csum(struct btrfs_fs_info *fs_info, crypto_shash_digest(shash, raw_disk_sb + BTRFS_CSUM_SIZE, BTRFS_SUPER_INFO_SIZE - BTRFS_CSUM_SIZE, result); - if (memcmp(disk_sb->csum, result, fs_info->csum_size)) + if (!IS_ENABLED(CONFIG_DISABLE_FS_CSUM_VERIFICATION) && + memcmp(disk_sb->csum, result, fs_info->csum_size)) return 1; return 0; @@ -494,7 +495,8 @@ static int validate_extent_buffer(struct extent_buffer *eb) header_csum = page_address(eb->pages[0]) + get_eb_offset_in_page(eb, offsetof(struct btrfs_header, csum)); - if (memcmp(result, header_csum, csum_size) != 0) { + if (!IS_ENABLED(CONFIG_DISABLE_FS_CSUM_VERIFICATION) && + memcmp(result, header_csum, csum_size) != 0) { btrfs_warn_rl(fs_info, "checksum verify failed on logical %llu mirror %u wanted " CSUM_FMT " found " CSUM_FMT " level %d", eb->start, eb->read_mirror, diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c index f4023651dd68..203c8a9076a6 100644 --- a/fs/btrfs/free-space-cache.c +++ b/fs/btrfs/free-space-cache.c @@ -574,7 +574,8 @@ static int io_ctl_check_crc(struct btrfs_io_ctl *io_ctl, int index) io_ctl_map_page(io_ctl, 0); crc = btrfs_crc32c(crc, io_ctl->orig + offset, PAGE_SIZE - offset); btrfs_crc32c_final(crc, (u8 *)&crc); - if (val != crc) { + if (!IS_ENABLED(CONFIG_DISABLE_FS_CSUM_VERIFICATION) && + val != crc) { btrfs_err_rl(io_ctl->fs_info, "csum mismatch on free space cache"); io_ctl_unmap_page(io_ctl); diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index b0807c59e321..1a49d897b5c1 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -3434,7 +3434,8 @@ int btrfs_check_sector_csum(struct btrfs_fs_info *fs_info, struct page *page, crypto_shash_digest(shash, kaddr, fs_info->sectorsize, csum); kunmap_local(kaddr); - if (memcmp(csum, csum_expected, fs_info->csum_size)) + if (!IS_ENABLED(CONFIG_DISABLE_FS_CSUM_VERIFICATION) && + memcmp(csum, csum_expected, fs_info->csum_size)) return -EIO; return 0; } diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c index f260c53829e5..a7607b492f47 100644 --- a/fs/btrfs/scrub.c +++ b/fs/btrfs/scrub.c @@ -1997,7 +1997,8 @@ static int scrub_checksum_data(struct scrub_block *sblock) crypto_shash_digest(shash, kaddr, fs_info->sectorsize, csum); - if (memcmp(csum, sector->csum, fs_info->csum_size)) + if (!IS_ENABLED(CONFIG_DISABLE_FS_CSUM_VERIFICATION) && + memcmp(csum, sector->csum, fs_info->csum_size)) sblock->checksum_error = 1; return sblock->checksum_error; } @@ -2062,7 +2063,8 @@ static int scrub_checksum_tree_block(struct scrub_block *sblock) } crypto_shash_final(shash, calculated_csum); - if (memcmp(calculated_csum, on_disk_csum, sctx->fs_info->csum_size)) + if (!IS_ENABLED(CONFIG_DISABLE_FS_CSUM_VERIFICATION) && + memcmp(calculated_csum, on_disk_csum, sctx->fs_info->csum_size)) sblock->checksum_error = 1; return sblock->header_error || sblock->checksum_error; @@ -2099,7 +2101,8 @@ static int scrub_checksum_super(struct scrub_block *sblock) crypto_shash_digest(shash, kaddr + BTRFS_CSUM_SIZE, BTRFS_SUPER_INFO_SIZE - BTRFS_CSUM_SIZE, calculated_csum); - if (memcmp(calculated_csum, s->csum, sctx->fs_info->csum_size)) + if (!IS_ENABLED(CONFIG_DISABLE_FS_CSUM_VERIFICATION) && + memcmp(calculated_csum, s->csum, sctx->fs_info->csum_size)) ++fail_cor; return fail_cor + fail_gen; -- 2.38.0.413.g74048e4d9e-goog _______________________________________________ Linux-f2fs-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
