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Filename Latest commit message Latest commit date
Hou Tao 3d24430694 block: make rq sector size accessible for block stats 
Currently rq->data_len will be decreased by partial completion or
zeroed by completion, so when blk_stat_add() is invoked, data_len
will be zero and there will never be samples in poll_cb because
blk_mq_poll_stats_bkt() will return -1 if data_len is zero.

We could move blk_stat_add() back to __blk_mq_complete_request(),
but that would make the effort of trying to call ktime_get_ns()
once in vain. Instead we can reuse throtl_size field, and use
it for both block stats and block throttle, and adjust the
logic in blk_mq_poll_stats_bkt() accordingly.

Fixes: 4bc6339a58 ("block: move blk_stat_add() to __blk_mq_end_request()")
Tested-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Hou Tao <houtao1@huawei.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-09-15 16:02:08 -06:00
arch powerpc fixes for 5.3 #3 2019-08-04 10:30:47 -07:00
block block: make rq sector size accessible for block stats 2019-09-15 16:02:08 -06:00
certs
crypto
Documentation docs: block: null_blk: enhance document style 2019-09-11 16:04:22 -06:00
drivers raid5: use bio_end_sector in r5_next_bio 2019-09-13 13:14:43 -07:00
fs writeback: add tracepoints for cgroup foreign writebacks 2019-08-30 07:42:49 -06:00
include block: make rq sector size accessible for block stats 2019-09-15 16:02:08 -06:00
init
ipc
kernel memremap: move from kernel/ to mm/ 2019-08-03 07:02:01 -07:00
lib lib: scatterlist: Fix to support no mapped sg 2019-08-08 07:45:01 -06:00
LICENSES
mm writeback: add tracepoints for cgroup foreign writebacks 2019-08-30 07:42:49 -06:00
net
samples
scripts kconfig: Clear "written" flag to avoid data loss 2019-08-04 12:44:15 +09:00
security selinux/stable-5.3 PR 20190801 2019-08-02 18:40:49 -07:00
sound sound fixes for 5.3-rc3 2019-08-02 08:53:34 -07:00
tools iocost_monitor: Report debt 2019-09-10 12:31:39 -06:00
usr
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS MAINTAINERS: Add Geert as Renesas SoC Co-Maintainer 2019-08-04 10:23:23 -07:00
Makefile Linux 5.3-rc3 2019-08-04 18:40:12 -07:00
README

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.