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sparc64: Fix gup_huge_pmd
authorNitin Gupta <nitin.m.gupta@oracle.com>
Fri, 23 Jun 2017 00:15:08 +0000 (17:15 -0700)
committerDavid S. Miller <davem@davemloft.net>
Sun, 25 Jun 2017 19:23:57 +0000 (15:23 -0400)
commitdbd2667a4fb9ce4f547982b07cd69dda127c47ea
tree3f1c1cbdfa1d3a5942eb02ed2c7f178820ae8b8ftree | snapshot
parentd8f431a0de4099c80fe38d65432853682c05d67bcommit | diff
sparc64: Fix gup_huge_pmd

The function assumes that each PMD points to head of a
huge page. This is not correct as a PMD can point to
start of any 8M region with a, say 256M, hugepage. The
fix ensures that it points to the correct head of any PMD
huge page.

Cc: Julian Calaby <julian.calaby@gmail.com>
Signed-off-by: Nitin Gupta <nitin.m.gupta@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
arch/sparc/mm/gup.c diff | blob | history
Domain: System / Kernel;