From: michaelc <michaelc@turbolinux.com.cn>
To: linux-kernel@vger.kernel.org
Subject: about kmap_high function
Date: Fri, 29 Jun 2001 15:06:01 +0800 [thread overview]
Message-ID: <3620762046.20010629150601@turbolinux.com.cn> (raw)
I found that the kmap_high function didn't call __flush_tlb_one()
when it mapped a highmem page sucessfully, and I think it maybe
cause the problem that TLB may store obslete page table entries, but
the kmap_atomic() function do call the __flush_tlb_one(), someone tell
me what's the differenc between the kmap_atomic and kmap_high except
that kmap_atomic can be used in IRQ contexts. I appreciate in advance.
--
Best regards,
michaelc mailto:michaelc@turbolinux.com.cn
next reply other threads:[~2001-06-29 7:05 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-06-29 7:06 michaelc [this message]
2001-07-03 9:38 ` Stephen C. Tweedie
2001-07-03 12:47 ` Paul Mackerras
2001-07-03 15:34 ` Stephen C. Tweedie
2001-07-04 11:48 ` Paul Mackerras
2001-07-05 2:28 ` Re[2]: " michaelc
2001-07-05 10:41 ` Stephen C. Tweedie
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