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authorLinus Torvalds <torvalds@linux-foundation.org>2011-12-05 15:35:16 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2011-12-05 15:35:16 -0800
commit35337c834124d2893b7fe4ba683c7639e6c37e0c (patch)
tree9a519b52ea5b8cdb72413a4c13c3596f75f90d52 /arch/s390/include/asm/pgtable.h
parent8c9b04346c0ae302d8b7b7df16cc19ddff77742e (diff)
parent75464960fc0ccc505527edc1459c8ad191fbc0cc (diff)
Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: [S390] ap: Setup timer for sending messages after reset. [S390] cio: fix chsc_chp_vary [S390] cio: provide fake irb for transport mode IO [S390] cio: disallow driver io for known to be broken paths [S390] hibernate: directly trigger subchannel evaluation [S390] remove reset of system call restart on psw changes [S390] add missing .set function for NT_S390_LAST_BREAK regset [S390] fix page change underindication in pgste_update_all [S390] ptrace inferior call interactions with TIF_SYSCALL [S390] kdump: Replace is_kdump_kernel() with OLDMEM_BASE check
Diffstat (limited to 'arch/s390/include/asm/pgtable.h')
-rw-r--r--arch/s390/include/asm/pgtable.h8
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
index 524d23b8610..4f289ff0b7f 100644
--- a/arch/s390/include/asm/pgtable.h
+++ b/arch/s390/include/asm/pgtable.h
@@ -599,10 +599,10 @@ static inline pgste_t pgste_update_all(pte_t *ptep, pgste_t pgste)
skey = page_get_storage_key(address);
bits = skey & (_PAGE_CHANGED | _PAGE_REFERENCED);
/* Clear page changed & referenced bit in the storage key */
- if (bits) {
- skey ^= bits;
- page_set_storage_key(address, skey, 1);
- }
+ if (bits & _PAGE_CHANGED)
+ page_set_storage_key(address, skey ^ bits, 1);
+ else if (bits)
+ page_reset_referenced(address);
/* Transfer page changed & referenced bit to guest bits in pgste */
pgste_val(pgste) |= bits << 48; /* RCP_GR_BIT & RCP_GC_BIT */
/* Get host changed & referenced bits from pgste */