Helge Deller 450d9315d2 io_uring: Fix io_uring mmap() by using architecture-provided get_unmapped_area() ... commit 32832a407a upstream. The io_uring testcase is broken on IA-64 since commit d808459b2e ("io_uring: Adjust mapping wrt architecture aliasing requirements"). The reason is, that this commit introduced an own architecture independend get_unmapped_area() search algorithm which finds on IA-64 a memory region which is outside of the regular memory region used for shared userspace mappings and which can't be used on that platform due to aliasing. To avoid similar problems on IA-64 and other platforms in the future, it's better to switch back to the architecture-provided get_unmapped_area() function and adjust the needed input parameters before the call. Beside fixing the issue, the function now becomes easier to understand and maintain. This patch has been successfully tested with the io_uring testcase on physical x86-64, ppc64le, IA-64 and PA-RISC machines. On PA-RISC the LTP mmmap testcases did not report any regressions. Cc: stable@vger.kernel.org # 6.4 Signed-off-by: Helge Deller <deller@gmx.de> Reported-by: matoro <matoro_mailinglist_kernel@matoro.tk> Fixes: d808459b2e ("io_uring: Adjust mapping wrt architecture aliasing requirements") Link: https://lore.kernel.org/r/20230721152432.196382-2-deller@gmx.de Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2023-07-27 08:56:31 +02:00
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boot	Kbuild updates for v5.17	2022-01-19 11:15:19 +02:00
configs	parisc: Update 32- and 64-bit defconfigs	2022-05-08 20:01:11 +02:00
include	parisc: Delete redundant register definitions in <asm/assembly.h>	2023-06-17 06:48:11 +02:00
kernel	io_uring: Fix io_uring mmap() by using architecture-provided get_unmapped_area()	2023-07-27 08:56:31 +02:00
lib	parisc: Drop homebrewn io[read|write]64_[lo_hi|hi_lo]	2022-09-23 21:52:27 +02:00
math-emu	parisc: align '*' in comment in math-emu code	2022-06-26 00:19:27 +02:00
mm	parisc: fix expand_stack() conversion	2023-07-01 13:12:41 +02:00
defpalo.conf
install.sh	kbuild: factor out the common installation code into scripts/install.sh	2022-05-11 21:45:53 +09:00
Kbuild	kbuild: use more subdir- for visiting subdirectories while cleaning	2021-10-24 13:49:46 +09:00
Kconfig	parisc: Enable LOCKDEP support	2023-05-24 14:27:28 +02:00
Kconfig.debug	parisc: Add lightweight spinlock checks	2023-05-24 14:23:07 +02:00
Makefile	kbuild: remove head-y syntax	2022-10-02 18:06:03 +09:00