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5246adec59
An hcall was recently added that does exactly what we need during kexec - it clears the entire MMU hash table, ignoring any VRMA mappings. Try it and fall back to the old method if we get a failure. On a POWER8 box with 5TB of memory, this reduces the time it takes to kexec a new kernel from from 4 minutes to 1 minute. Signed-off-by: Anton Blanchard <anton@samba.org> Tested-by: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com> [mpe: Split into separate functions and tweak function naming] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> |
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| boot | ||
| configs | ||
| crypto | ||
| include | ||
| kernel | ||
| kvm | ||
| lib | ||
| math-emu | ||
| mm | ||
| net | ||
| oprofile | ||
| perf | ||
| platforms | ||
| scripts | ||
| sysdev | ||
| xmon | ||
| Kconfig | ||
| Kconfig.debug | ||
| Makefile | ||
| relocs_check.sh | ||