Ingo Molnar 95108fa34a x86: usercopy: check for total size when deciding non-temporal cutoff ... Impact: make more types of copies non-temporal This change makes the following simple fix: 30d697f: x86: fix performance regression in write() syscall A bit more sophisticated: we check the 'total' number of bytes written to decide whether to copy in a cached or a non-temporal way. This will for example cause the tail (modulo 4096 bytes) chunk of a large write() to be non-temporal too - not just the page-sized chunks. Cc: Salman Qazi <sqazi@google.com> Cc: Nick Piggin <npiggin@suse.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>		2009-02-25 10:20:05 +01:00
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asm	x86: usercopy: check for total size when deciding non-temporal cutoff	2009-02-25 10:20:05 +01:00