The s390 page-table walk code, used for user copy and futex, currently cannot handle huge pages. As far as user copy is concerned, that is not really a problem because those functions will only be used on old hardware that has no huge page support. But the futex code will also use pagetable walk functions on current hardware when user space runs in primary space mode. So, if a futex sits in a huge page, the futex operation on it will result in a page fault loop or even data corruption. This patch adds the code for resolving huge page mappings in the user access pagetable walk code on s390. Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> |
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Makefile | ||
delay.c | ||
div64.c | ||
qrnnd.S | ||
spinlock.c | ||
string.c | ||
uaccess.h | ||
uaccess_mvcos.c | ||
uaccess_pt.c | ||
uaccess_std.c | ||
ucmpdi2.c | ||
usercopy.c |