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authorBernd Schmidt <bernds_cb1@t-online.de>2008-08-25 18:41:15 +0800
committerBryan Wu <cooloney@kernel.org>2008-08-25 18:41:15 +0800
commit3d9b7a5ce534f3963afcf8f4777267e5899fe007 (patch)
tree8b12d350b00a0c0f12d4764fe5998ef0a9bfed57 /arch/blackfin/include/asm/uaccess.h
parent225f7e1eb56ad054c328ae1b11601ea4de7488ba (diff)
downloadlinux-2.6.38-lt-ux500-3d9b7a5ce534f3963afcf8f4777267e5899fe007.tar.gz
Blackfin arch: fix bug - MPU crashes under stress
Bug Description: a customer reported under IRQ stress, running applications may wrongly trigger an ICPLB miss and be killed. after playing a bit more, here's a test case that may be triggering the same bug. Fixing: After modifying page protections, only modify the active CPLBs if the protection change was made for the active mm. Signed-off-by: Bernd Schmidt <bernds_cb1@t-online.de> Signed-off-by: Bryan Wu <cooloney@kernel.org>
Diffstat (limited to 'arch/blackfin/include/asm/uaccess.h')
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