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um: adjust current_thread_info() for newer gcc versions
authorRichard Weinberger <richard@nod.at>
Wed, 27 Apr 2011 22:26:54 +0000 (15:26 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Thu, 28 Apr 2011 18:28:21 +0000 (11:28 -0700)
commita62ab3c733bb992b10635a25c1df39c008c02c9e
treeb45ec4d6debc312616e8d0590dacaed0b87e849ftree | snapshot
parentcfa6fc2a7b46e23927ebf51578e0793ba976a258commit | diff
um: adjust current_thread_info() for newer gcc versions

In some cases gcc >= 4.5.2 will optimize away current_thread_info().  To
prevent gcc from doing so the stack address has to be obtained via inline
asm.

Signed-off-by: Richard Weinberger <richard@nod.at>
Acked-by: Kirill A. Shutemov <kirill@shutemov.name>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
arch/um/include/asm/thread_info.h diff | blob | history
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