mirror of https://gitee.com/openkylin/linux.git
4307d1e5ad
dont use the vgetcpu tcache - it's causing problems with tasks migrating, they'll see the old cache up to a jiffy after the migration, further increasing the costs of the migration. In the worst case they see a complete bogus information from the tcache, when a sys_getcpu() call "invalidated" the cache info by incrementing the jiffies _and_ the cpuid info in the cache and the following vdso_getcpu() call happens after vdso_jiffies have been incremented. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Ulrich Drepper <drepper@redhat.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> |
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| .. | ||
| .gitignore | ||
| Makefile | ||
| vclock_gettime.c | ||
| vdso-note.S | ||
| vdso-start.S | ||
| vdso.S | ||
| vdso.lds.S | ||
| vextern.h | ||
| vgetcpu.c | ||
| vma.c | ||
| voffset.h | ||
| vvar.c | ||