Linus Torvalds 32913f3482 futex: fix user access on powerpc ... The powerpc user access code is special, and unlike other architectures distinguishes between user access for reading and writing. And commit 43a43faf53 ("futex: improve user space accesses") messed that up. It went undetected elsewhere, but caused ppc32 to fail early during boot, because the user access had been started with user_read_access_begin(), but then finished off with just a plain "user_access_end()". Note that the address-masking user access helpers don't even have that read-vs-write distinction, so if powerpc ever wants to do address masking tricks, we'll have to do some extra work for it. [ Make sure to also do it for the EFAULT case, as pointed out by Christophe Leroy ] Reported-by: Andreas Schwab <schwab@linux-m68k.org> Cc: Christophe Leroy <christophe.leroy@csgroup.eu> Link: https://lore.kernel.org/all/87bjxl6b0i.fsf@igel.home/ Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2024-12-09 10:00:25 -08:00
..
core.c	futex: improve user space accesses	2024-11-25 12:11:55 -08:00
futex.h	futex: fix user access on powerpc	2024-12-09 10:00:25 -08:00
Makefile	futex: Split out wait/wake	2021-10-07 13:51:11 +02:00
pi.c	locking/mutex: Remove wakeups from under mutex::wait_lock	2024-10-14 12:52:40 +02:00
requeue.c	plist: Split out plist_types.h	2023-12-20 19:26:31 -05:00
syscalls.c	futex: make futex_parse_waitv() available as a helper	2023-09-29 02:37:05 -06:00
waitwake.c	plist: Split out plist_types.h	2023-12-20 19:26:31 -05:00