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| author | David S. Miller <davem@davemloft.net> | 2010-05-25 23:36:31 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-05-25 23:36:31 -0700 |
| commit | c87fe1c05d57e3fecd62e56da1b1ac4291116ebf (patch) | |
| tree | 48b6aa47000becb4ba08c1dc230e1471f64b7b02 /arch/sparc/mm/srmmu.c | |
| parent | b1cdc4670b9508fcd47a15fbd12f70d269880b37 (diff) | |
| download | lwn-c87fe1c05d57e3fecd62e56da1b1ac4291116ebf.tar.gz lwn-c87fe1c05d57e3fecd62e56da1b1ac4291116ebf.zip | |
sparc32: Kill none_mask, it's bogus.
For some reason, the pte_none() calculation for srmmu sparc32
chips was masking out the top 4 bits. That doesn't make any
sense, as those are just some of the physical bits of the PTE
encoding.
Furthermore, this mistake breaks things when the offset of of a swap
entry has a large enough offset as reported by Тхай Кирилл.
Sun4c always set it to zero, so it's really completely useless,
kill it.
Reported-by: Тхай Кирилл <tkhai@yandex.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/mm/srmmu.c')
| -rw-r--r-- | arch/sparc/mm/srmmu.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/arch/sparc/mm/srmmu.c b/arch/sparc/mm/srmmu.c index f5f75a58e0b3..b0b43aa5e45a 100644 --- a/arch/sparc/mm/srmmu.c +++ b/arch/sparc/mm/srmmu.c @@ -2215,8 +2215,6 @@ void __init ld_mmu_srmmu(void) BTFIXUPSET_CALL(pmd_page, srmmu_pmd_page, BTFIXUPCALL_NORM); BTFIXUPSET_CALL(pgd_page_vaddr, srmmu_pgd_page, BTFIXUPCALL_NORM); - BTFIXUPSET_SETHI(none_mask, 0xF0000000); - BTFIXUPSET_CALL(pte_present, srmmu_pte_present, BTFIXUPCALL_NORM); BTFIXUPSET_CALL(pte_clear, srmmu_pte_clear, BTFIXUPCALL_SWAPO0G0); |