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authorDean Nelson <dnelson@redhat.com>2010-12-02 14:31:12 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2010-12-02 14:51:14 -0800
commit1f64d69c7ad2e48e697493e45590679f7a69b7b2 (patch)
tree62e6c3d1dd31e1f87992710cde6b0b905f482606 /arch/parisc
parent94c35de9a918665d9354efe2bafc29ba4b37497a (diff)
mm/hugetlb.c: avoid double unlock_page() in hugetlb_fault()
Have hugetlb_fault() call unlock_page(page) only if it had previously called lock_page(page). Setting CONFIG_DEBUG_VM=y and then running the libhugetlbfs test suite, resulted in the tripping of VM_BUG_ON(!PageLocked(page)) in unlock_page() having been called by hugetlb_fault() when page == pagecache_page. This patch remedied the problem. Signed-off-by: Dean Nelson <dnelson@redhat.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/parisc')
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