Messages in this thread |  | | From | (Matthias Urlichs) | Subject | Re: Accessing copy_to_user() from interrupt handler? | Date | 25 Nov 1996 08:44:25 +0100 |
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In linux.dev.kernel, article <qm4tii8pyj.fsf@chemie.uni-karlsruhe.de>, Klaus-Georg Adams <Klaus-Georg.Adams@chemie.uni-karlsruhe.de> writes: > > This brings us back to the problem of kmalloc()ing ca. 1MB reliably. I > prefer allocating the buffer in the ccd_open() rather than in > module_init(). And so far there is no way to tell kmalloc() to page > out a couple of user pages if memory is running low instead of > failing. vmalloc() works, but then you don't want page faults when > reading from the CCD. > It seems that vmalloc needs an option to actually allocate the pages it maps (I was assuming it does that already?).
-- Trapped, like a trap in a trap. -- Dorothy Parker -- Matthias Urlichs \ noris network GmbH / Xlink-POP Nürnberg Schleiermacherstraße 12 \ Linux+Internet / EMail: urlichs@noris.de 90491 Nürnberg (Germany) \ Consulting+Programming+Networking+etc'ing PGP: 1024/4F578875 1B 89 E2 1C 43 EA 80 44 15 D2 29 CF C6 C7 E0 DE Click <A HREF="http://info.noris.de/~smurf/finger">here</A>. 42
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