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sched/topology: Kill SD_LOAD_BALANCE 

commit 36c5bdc438 upstream.

------------------------------------------------------------------------

That flag is set unconditionally in sd_init(), and no one checks for it
anymore. Remove it.

Signed-off-by: Valentin Schneider <valentin.schneider@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20200415210512.805-5-valentin.schneider@arm.com
Signed-off-by: Xue Sinian <tangyuan911@yeah.net>
This commit is contained in:
Valentin Schneider 2020-04-15 22:05:07 +01:00 committed by XueSinian
parent be160a5148
commit 10f3bc1916
2 changed files with 15 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
include/linux/sched/topology.h
View File

@ -11,21 +11,20 @@
*/
#ifdef CONFIG_SMP
#define SD_LOAD_BALANCE 0x0001 /* Do load balancing on this domain. */
#define SD_BALANCE_NEWIDLE 0x0002 /* Balance when about to become idle */
#define SD_BALANCE_EXEC 0x0004 /* Balance on exec */
#define SD_BALANCE_FORK 0x0008 /* Balance on fork, clone */
#define SD_BALANCE_WAKE 0x0010 /* Balance on wakeup */
#define SD_WAKE_AFFINE 0x0020 /* Wake task to waking CPU */
#define SD_ASYM_CPUCAPACITY 0x0040 /* Domain members have different CPU capacities */
#define SD_SHARE_CPUCAPACITY 0x0080 /* Domain members share CPU capacity */
#define SD_SHARE_POWERDOMAIN 0x0100 /* Domain members share power domain */
#define SD_SHARE_PKG_RESOURCES 0x0200 /* Domain members share CPU pkg resources */
#define SD_SERIALIZE 0x0400 /* Only a single load balancing instance */
#define SD_ASYM_PACKING 0x0800 /* Place busy groups earlier in the domain */
#define SD_PREFER_SIBLING 0x1000 /* Prefer to place tasks in a sibling domain */
#define SD_OVERLAP 0x2000 /* sched_domains of this level overlap */
#define SD_NUMA 0x4000 /* cross-node balancing */
#define SD_BALANCE_NEWIDLE 0x0001 /* Balance when about to become idle */
#define SD_BALANCE_EXEC 0x0002 /* Balance on exec */
#define SD_BALANCE_FORK 0x0004 /* Balance on fork, clone */
#define SD_BALANCE_WAKE 0x0008 /* Balance on wakeup */
#define SD_WAKE_AFFINE 0x0010 /* Wake task to waking CPU */
#define SD_ASYM_CPUCAPACITY 0x0020 /* Domain members have different CPU capacities */
#define SD_SHARE_CPUCAPACITY 0x0040 /* Domain members share CPU capacity */
#define SD_SHARE_POWERDOMAIN 0x0080 /* Domain members share power domain */
#define SD_SHARE_PKG_RESOURCES 0x0100 /* Domain members share CPU pkg resources */
#define SD_SERIALIZE 0x0200 /* Only a single load balancing instance */
#define SD_ASYM_PACKING 0x0400 /* Place busy groups earlier in the domain */
#define SD_PREFER_SIBLING 0x0800 /* Prefer to place tasks in a sibling domain */
#define SD_OVERLAP 0x1000 /* sched_domains of this level overlap */
#define SD_NUMA 0x2000 /* cross-node balancing */
#ifdef CONFIG_SCHED_SMT
static inline int cpu_smt_flags(void)

3
kernel/sched/topology.c
View File

@ -1336,8 +1336,7 @@ sd_init(struct sched_domain_topology_level *tl,
.cache_nice_tries = 0,
.flags = 1*SD_LOAD_BALANCE
| 1*SD_BALANCE_NEWIDLE
.flags = 1*SD_BALANCE_NEWIDLE
| 1*SD_BALANCE_EXEC
| 1*SD_BALANCE_FORK
| 0*SD_BALANCE_WAKE