x86: remove more uaccess_32.h complexity

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I'm looking at trying to possibly merge the 32-bit and 64-bit versions
of the x86 uaccess.h implementation, but first this needs to be cleaned
up.

For example, the 32-bit version of "__copy_from_user_inatomic()" is
mostly the special cases for the constant size, and it's actually almost
never relevant.  Most users aren't actually using a constant size
anyway, and the few cases that do small constant copies are better off
just using __get_user() instead.

So get rid of the unnecessary complexity.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

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This commit is contained in:

Linus Torvalds 2016-05-22 17:21:27 -07:00

parent 5b09c3edec

commit bd28b14591

4 changed files with 3 additions and 31 deletions

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3

kernel/events/uprobes.c

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2

kernel/futex.c

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