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| author |   Tony Luck <tony.luck@intel.com> | 2005-05-17 15:53:14 -0700 |
|---|---|---|
| committer | Tony Luck <tony.luck@intel.com> | 2005-05-17 15:53:14 -0700 |
| commit | 325a479c4c110db278ef3361460a48c4093252cc (patch) | |
| tree | bcfbf4d0647d9442045639a5c19da59d55190e81 /arch/ppc64/mm/hash_low.S | |
| parent | [IA64] Merge audit fix for fsyscalls with syscall-optimizations (diff) | |
| parent | [IA64] Fix convert_to_non_syscall() so gdb inferior calls work again (diff) | |
| download | linux-dev-325a479c4c110db278ef3361460a48c4093252cc.tar.xz linux-dev-325a479c4c110db278ef3361460a48c4093252cc.zip | |
Merge with temp tree to get David's gdb inferior calls patch
Diffstat (limited to 'arch/ppc64/mm/hash_low.S')
| -rw-r--r-- | arch/ppc64/mm/hash_low.S | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/arch/ppc64/mm/hash_low.S b/arch/ppc64/mm/hash_low.S index 8c0156a37001..c23d46956dd9 100644 --- a/arch/ppc64/mm/hash_low.S +++ b/arch/ppc64/mm/hash_low.S @@ -85,7 +85,10 @@ _GLOBAL(__hash_page) bne- htab_wrong_access /* Check if PTE is busy */ andi. r0,r31,_PAGE_BUSY - bne- 1b + /* If so, just bail out and refault if needed. Someone else + * is changing this PTE anyway and might hash it. + */ + bne- bail_ok /* Prepare new PTE value (turn access RW into DIRTY, then * add BUSY,HASHPTE and ACCESSED) */ @@ -215,6 +218,10 @@ _GLOBAL(htab_call_hpte_remove) /* Try all again */ b htab_insert_pte +bail_ok: + li r3,0 + b bail + htab_pte_insert_ok: /* Insert slot number & secondary bit in PTE */ rldimi r30,r3,12,63-15 |