AuxXxilium/linux_dsm_epyc7002
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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

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Pull s390 fixes from Martin Schwidefsky:
 "Three bug fixes"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/mm: set change and reference bit on lazy key enablement
  s390: chp: handle CRW_ERC_INIT for channel-path status change
  s390/perf: fix problem state detection
This commit is contained in:
Linus Torvalds 2017-07-25 08:44:27 -07:00
commit eeb7c41d9d
3 changed files with 5 additions and 4 deletions
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2
arch/s390/kernel/perf_cpum_sf.c
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@ -998,7 +998,7 @@ static int perf_push_sample(struct perf_event *event, struct sf_raw_sample *sfr)
psw_bits(regs.psw).ia = sfr->basic.ia;
psw_bits(regs.psw).dat = sfr->basic.T;
psw_bits(regs.psw).wait = sfr->basic.W;
psw_bits(regs.psw).per = sfr->basic.P;
psw_bits(regs.psw).pstate = sfr->basic.P;
psw_bits(regs.psw).as = sfr->basic.AS;
/*

6
arch/s390/mm/pgtable.c
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@ -591,11 +591,11 @@ void ptep_zap_key(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
unsigned long ptev;
pgste_t pgste;
/* Clear storage key */
/* Clear storage key ACC and F, but set R/C */
preempt_disable();
pgste = pgste_get_lock(ptep);
pgste_val(pgste) &= ~(PGSTE_ACC_BITS | PGSTE_FP_BIT |
PGSTE_GR_BIT | PGSTE_GC_BIT);
pgste_val(pgste) &= ~(PGSTE_ACC_BITS | PGSTE_FP_BIT);
pgste_val(pgste) |= PGSTE_GR_BIT | PGSTE_GC_BIT;
ptev = pte_val(*ptep);
if (!(ptev & _PAGE_INVALID) && (ptev & _PAGE_WRITE))
page_set_storage_key(ptev & PAGE_MASK, PAGE_DEFAULT_KEY, 1);

1
drivers/s390/cio/chp.c
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@ -559,6 +559,7 @@ static void chp_process_crw(struct crw *crw0, struct crw *crw1,
chpid.id = crw0->rsid;
switch (crw0->erc) {
case CRW_ERC_IPARM: /* Path has come. */
case CRW_ERC_INIT:
if (!chp_is_registered(chpid))
chp_new(chpid);
chsc_chp_online(chpid);