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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2017-07-19 14:49:37 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2017-08-03 16:06:48 +1000 |
| commit | 3da026480a7536bad5033e963008ec052c8e7530 (patch) | |
| tree | f92e2e3184f8d036825619fa9dff7287f439751c /arch/powerpc/mm | |
| parent | b5c8f0fd595d25a938d16c041f92badc67533d9f (diff) | |
powerpc/mm: Move CMO accounting out of do_page_fault into a helper
It makes do_page_fault() more readable. No functional change.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/mm')
| -rw-r--r-- | arch/powerpc/mm/fault.c | 29 |
1 files changed, 18 insertions, 11 deletions
diff --git a/arch/powerpc/mm/fault.c b/arch/powerpc/mm/fault.c index 0b217947d34f..5ccbf30d8aef 100644 --- a/arch/powerpc/mm/fault.c +++ b/arch/powerpc/mm/fault.c @@ -222,6 +222,23 @@ static bool bad_kernel_fault(bool is_exec, unsigned long error_code, return is_exec || (address >= TASK_SIZE); } +#ifdef CONFIG_PPC_SMLPAR +static inline void cmo_account_page_fault(void) +{ + if (firmware_has_feature(FW_FEATURE_CMO)) { + u32 page_ins; + + preempt_disable(); + page_ins = be32_to_cpu(get_lppaca()->page_ins); + page_ins += 1 << PAGE_FACTOR; + get_lppaca()->page_ins = cpu_to_be32(page_ins); + preempt_enable(); + } +} +#else +static inline void cmo_account_page_fault(void) { } +#endif /* CONFIG_PPC_SMLPAR */ + /* * Define the correct "is_write" bit in error_code based * on the processor family @@ -501,17 +518,7 @@ good_area: current->maj_flt++; perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1, regs, address); -#ifdef CONFIG_PPC_SMLPAR - if (firmware_has_feature(FW_FEATURE_CMO)) { - u32 page_ins; - - preempt_disable(); - page_ins = be32_to_cpu(get_lppaca()->page_ins); - page_ins += 1 << PAGE_FACTOR; - get_lppaca()->page_ins = cpu_to_be32(page_ins); - preempt_enable(); - } -#endif /* CONFIG_PPC_SMLPAR */ + cmo_account_page_fault(); } else { current->min_flt++; perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1, |