Messages in this thread |  | | Subject | Re: [SMP lock BUG?] Re: Feedback on preemptible kernel patch | From | Robert Love <> | Date | 08 Sep 2001 23:44:27 -0400 |
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On Sat, 2001-09-08 at 19:11, Manfred Spraul wrote: > No. > It seems to be a missing ctx_sw_off() in highmem.h: > kmap_atomic uses a per-cpu variable, thus ctx_sw_off() is needed in > kmap_atomic, and ctx_sw_on() in kunmap_atomic().
in my tree, kmap_atomic and kunmap_atomic are just defined to kmap/kunmap. are you suggesting something like this?
#define kmap_atomic(page,idx) ctx_sw_off(); kmap(page); #define kunmap_atomic(page,idx) ctx_sw_on(); kunmap(page);
-- Robert M. Love rml at ufl.edu rml at tech9.net
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