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(parent: 38f5bf8) | patch
asm-generic headers: add arch-specific __strnlen_user calling in uaccess.h
authorGuanXuetao <gxt@mprc.pku.edu.cn>
Sat, 15 Jan 2011 10:08:09 +0000 (18:08 +0800)
committerGuanXuetao <gxt@mprc.pku.edu.cn>
Thu, 17 Mar 2011 01:19:05 +0000 (09:19 +0800)
commit7f509a9ef7af0d6ac852d49eb87ed2b9857821cc
treeb6e1eb8c435cf14ce5626a33ab2da36aee9f791ctree | snapshot (tar.gz zip)
parent38f5bf84bd588a82890f5ab32cba3317555a73e1commit | diff
asm-generic headers: add arch-specific __strnlen_user calling in uaccess.h

This patch changes the implementation of strnlen_user in include/asm-generic/uaccess.h.
Originally, it calls strlen() function directly, which may not correctly handle the access of
user space in most mmu-enabled architectures.
New __strnlen_user is added for using as an architecture specific function.

Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
include/asm-generic/uaccess.h diff | blob | blame | history