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(parent: 25b0718) | patch
sparc64: Fix bugs in get_user_pages_fast() wrt. THP.
authorDavid S. Miller <davem@davemloft.net>
Fri, 25 Apr 2014 17:21:12 +0000 (10:21 -0700)
committerDavid S. Miller <davem@davemloft.net>
Sun, 4 May 2014 05:32:37 +0000 (22:32 -0700)
commit71a0356470f3f13ae5e20b21742d77d519014f78
tree35f20c565e3d6797ed9638e688e4e911251da011tree | snapshot
parent25b071888d3267464628df9f615abcc301256e19commit | diff
sparc64: Fix bugs in get_user_pages_fast() wrt. THP.

The large PMD path needs to check _PAGE_VALID not _PAGE_PRESENT, to
decide if it needs to bail and return 0.

pmd_large() should therefore just check _PAGE_PMD_HUGE.

Calls to gup_huge_pmd() are guarded with a check of pmd_large(), so we
just need to add a valid bit check.

Signed-off-by: David S. Miller <davem@davemloft.net>
arch/sparc/include/asm/pgtable_64.h diff | blob | history
arch/sparc/mm/gup.c diff | blob | history
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