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| author | David S. Miller <davem@sunset.davemloft.net> | 2006-03-27 01:07:55 -0800 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-03-27 01:07:55 -0800 |
| commit | 7bebd83dbf096d0bf4b4bfbaf5d8844a05f5eafc (patch) | |
| tree | ea583040c5d9fbd8d72e7b9bfa831c9f7b553a5e /arch/sparc64 | |
| parent | 5d5d7727a8cde78f798ecf04bac8031eff536f9d (diff) | |
| download | linux-3.10-7bebd83dbf096d0bf4b4bfbaf5d8844a05f5eafc.tar.gz linux-3.10-7bebd83dbf096d0bf4b4bfbaf5d8844a05f5eafc.tar.bz2 linux-3.10-7bebd83dbf096d0bf4b4bfbaf5d8844a05f5eafc.zip | |
[SPARC64]: Fix off-by-1 error in TSB grow check.
The worst part about this bug is what it would cause
a hugepage TSB to be allocated for every address space
since "0 >= 0".
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc64')
| -rw-r--r-- | arch/sparc64/mm/fault.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/sparc64/mm/fault.c b/arch/sparc64/mm/fault.c index d21ff3230c0..0db2f7d9fab 100644 --- a/arch/sparc64/mm/fault.c +++ b/arch/sparc64/mm/fault.c @@ -413,12 +413,12 @@ good_area: #ifdef CONFIG_HUGETLB_PAGE mm_rss -= (mm->context.huge_pte_count * (HPAGE_SIZE / PAGE_SIZE)); #endif - if (unlikely(mm_rss >= + if (unlikely(mm_rss > mm->context.tsb_block[MM_TSB_BASE].tsb_rss_limit)) tsb_grow(mm, MM_TSB_BASE, mm_rss); #ifdef CONFIG_HUGETLB_PAGE mm_rss = mm->context.huge_pte_count; - if (unlikely(mm_rss >= + if (unlikely(mm_rss > mm->context.tsb_block[MM_TSB_HUGE].tsb_rss_limit)) tsb_grow(mm, MM_TSB_HUGE, mm_rss); #endif |