]> git.baikalelectronics.ru Git - kernel.git/commit
projects / kernel.git / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: 4014aaa) | patch
ppc/hugetlbfs: Replace ACCESS_ONCE with READ_ONCE
authorChristian Borntraeger <borntraeger@de.ibm.com>
Tue, 6 Jan 2015 21:47:41 +0000 (22:47 +0100)
committerChristian Borntraeger <borntraeger@de.ibm.com>
Mon, 19 Jan 2015 13:14:19 +0000 (14:14 +0100)
commit346b082211a6d96438b20599753ad07bdf5afc25
tree80d57ed776241fbcc48339d1ef1012cd39a5cf69tree | snapshot
parent4014aaa91413990ed7988fbe54df12c7b8eb7525commit | diff
ppc/hugetlbfs: Replace ACCESS_ONCE with READ_ONCE

ACCESS_ONCE does not work reliably on non-scalar types. For
example gcc 4.6 and 4.7 might remove the volatile tag for such
accesses during the SRA (scalar replacement of aggregates) step
(https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58145)

Change the ppc/hugetlbfs code to replace ACCESS_ONCE with READ_ONCE.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
arch/powerpc/mm/hugetlbpage.c diff | blob | history
Linux Kernel Source Tree.