Spdk/app
Krzysztof Karas a599e69b58 spdk_top: change return type of get_last_run_counter()
New pollers did not have a corresponding run_counter_history entry
when displaying data for the first time after they were created.
If user enabled g_interval_data and observed the creation of the poller,
application crashed due to get_last_run_counter() returning NULL pointer.

Fixes #1995

For new pollers there is no historical data and current last_run_counter,
matches the expected last_run_counter for displayed spdk_top interval.
get_last_run_counter() now returns 0 when matching run_counter_history is
missing. Avoiding dereference of a NULL pointer.

While here modified copy_pollers() to no longer get and store the last run counter
twice. When doing reset_last_counter only storing the new last run counter is needed.

Signed-off-by: Krzysztof Karas <krzysztof.karas@intel.com>
Change-Id: I5218c9ac0f2f79da32840cf64b4083642893f5cc
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/8683
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
2021-07-21 07:27:32 +00:00
..
iscsi_tgt net: Remove library 2021-07-13 08:57:58 +00:00
iscsi_top build: use DEPDIRS variables to build SPDK_LIB_LIST 2020-12-18 09:40:01 +00:00
nvmf_tgt event: Shift subsystem initialization code to a separate library 2021-05-24 10:12:50 +00:00
spdk_dd event: Shift subsystem initialization code to a separate library 2021-05-24 10:12:50 +00:00
spdk_lspci mk: Fix mlx5_dv linkage 2020-12-28 13:21:36 +00:00
spdk_tgt event: Shift subsystem initialization code to a separate library 2021-05-24 10:12:50 +00:00
spdk_top spdk_top: change return type of get_last_run_counter() 2021-07-21 07:27:32 +00:00
trace app/trace: assert history ptr 2021-07-16 07:13:44 +00:00
trace_record app/trace_record: modify help case to return 0 2021-02-26 11:50:58 +00:00
vhost event: Shift subsystem initialization code to a separate library 2021-05-24 10:12:50 +00:00
Makefile app: exclude spdk_top from mingw cross builds 2021-03-03 08:16:54 +00:00