linux_dsm_epyc7002/include
Yafang Shao 19343b5bdd mm/page-writeback: introduce tracepoint for wait_on_page_writeback()
Recently there have been some hung tasks on our server due to
wait_on_page_writeback(), and we want to know the details of this
PG_writeback, i.e.  this page is writing back to which device.  But it is
not so convenient to get the details.

I think it would be better to introduce a tracepoint for diagnosing the
writeback details.

Link: http://lkml.kernel.org/r/1556274402-19018-1-git-send-email-laoar.shao@gmail.com
Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Jan Kara <jack@suse.cz>
Cc: Michal Hocko <mhocko@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-05-14 09:47:51 -07:00
..
acpi Driver core/kobject patches for 5.2-rc1 2019-05-07 13:01:40 -07:00
asm-generic hugetlb: allow to free gigantic pages regardless of the configuration 2019-05-14 09:47:47 -07:00
clocksource
crypto crypto: shash - remove shash_desc::flags 2019-04-25 15:38:12 +08:00
drm drm pull request for 5.2 2019-05-08 21:35:19 -07:00
dt-bindings We have a couple new features and changes in the core clk framework this time 2019-05-09 14:50:09 -07:00
keys
kvm
linux mm/page-writeback: introduce tracepoint for wait_on_page_writeback() 2019-05-14 09:47:51 -07:00
math-emu
media drm pull request for 5.2 2019-05-08 21:35:19 -07:00
memory
misc ocxl: Provide global MMIO accessors for external drivers 2019-05-03 02:55:02 +10:00
net net/tcp: use deferred jump label for TCP acked data hook 2019-05-09 11:13:57 -07:00
pcmcia
ras
rdma RDMA: Add EFA related definitions 2019-05-06 13:47:50 -03:00
scsi
soc This pull request contains the following changes for MTD: 2019-05-12 17:57:52 -04:00
sound sound updates for 5.2-rc1 2019-05-09 08:26:55 -07:00
target
trace mm/page-writeback: introduce tracepoint for wait_on_page_writeback() 2019-05-14 09:47:51 -07:00
uapi fs/sync.c: sync_file_range(2) may use WB_SYNC_ALL writeback 2019-05-14 09:47:50 -07:00
video
xen