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Filename Latest commit message Latest commit date
Israel Rukshin 434de487e0 scsi: target/iblock: Fix protection error with blocks greater than 512B
[ Upstream commit e4dc9a4c31fe10d1751c542702afc85be8a5c56a ]

The sector size of the block layer is 512 bytes, but integrity interval
size might be different (in case of 4K block size of the media). At the
initiator side the virtual start sector is the one that was originally
submitted by the block layer (512 bytes) for the Reftag usage. The
initiator converts the Reftag to integrity interval units and sends it to
the target. So the target virtual start sector should be calculated at
integrity interval units. prepare_fn() and complete_fn() don't remap
correctly the Reftag when using incorrect units of the virtual start
sector, which leads to the following protection error at the device:

"blk_update_request: protection error, dev sdb, sector 2048 op 0x0:(READ)
flags 0x10000 phys_seg 1 prio class 0"

To fix that, set the seed in integrity interval units.

Link: https://lore.kernel.org/r/1576078562-15240-1-git-send-email-israelr@mellanox.com
Signed-off-by: Israel Rukshin <israelr@mellanox.com>
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-01-17 19:49:04 +01:00
arch ARM: 8943/1: Fix topology setup in case of CPU hotplug for CONFIG_SCHED_MC 2020-01-17 19:48:55 +01:00
block fs: move guard_bio_eod() after bio_set_op_attrs 2020-01-17 19:48:21 +01:00
certs
crypto crypto: algif_skcipher - Use chunksize instead of blocksize 2020-01-17 19:48:46 +01:00
Documentation mei: fix modalias documentation 2020-01-17 19:48:48 +01:00
drivers scsi: target/iblock: Fix protection error with blocks greater than 512B 2020-01-17 19:49:04 +01:00
fs NFSD fixing possible null pointer derefering in copy offload 2020-01-17 19:49:02 +01:00
include crypto: algif_skcipher - Use chunksize instead of blocksize 2020-01-17 19:48:46 +01:00
init
ipc
kernel keys: Fix request_key() cache 2020-01-17 19:48:42 +01:00
lib
LICENSES
mm uaccess: Add non-pagefault user-space write function 2020-01-17 19:48:40 +01:00
net sch_cake: Add missing NLA policy entry TCA_CAKE_SPLIT_GSO 2020-01-17 19:49:02 +01:00
samples
scripts bpf: Support pre-2.25-binutils objcopy for vmlinux BTF 2020-01-17 19:48:41 +01:00
security
sound ASoC: rsnd: fix DALIGN register for SSIU 2020-01-17 19:48:35 +01:00
tools tools: PCI: Fix fd leakage 2020-01-17 19:48:54 +01:00
usr
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS MAINTAINERS: Append missed file to the database 2020-01-17 19:48:28 +01:00
Makefile Linux 5.4.12 2020-01-14 20:08:40 +01:00
README

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.