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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-06-24 10:39:17 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-06-24 10:39:17 -0700
commit793ae77469121227cd910c4b99f24be1de34bcca (patch)
treeca8b6bbafab35c5c1099c54696c36dc0b8c17cf7 /fs/qnx4
parent59a49e38711a146dc0bef4837c825b5422335460 (diff)
Add "memory" clobbers to the x86 inline asm of strncmp and friends
They don't actually clobber memory, but gcc doesn't even know they _read_ memory, so can apparently re-order memory accesses around them. Which obviously does the wrong thing if the memory access happens to change the memory that the compare function is accessing.. Verified to fix a strange boot problem by Jens Axboe.
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