linux/arch/um/kernel
Johannes Berg 8eacd6fca4 um: Remove locking in deactivate_all_fds()
Not only does the locking contradict the comment, and as
the comment says is pointless and actually harmful (all
the actual OS threads have exited already), but it also
causes crashes when lockdep is enabled, because calling
into the spinlock calls into lockdep, which then tries
to determine the current task, which no longer exists.

Remove the locking to let UML shut down cleanly in case
lockdep is enabled.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
2019-07-02 23:27:05 +02:00
..
skas um: remove unused variable 2019-05-07 23:18:28 +02:00
asm-offsets.c
config.c.in
dyn.lds.S Construct init thread stack in the linker script rather than by union 2018-01-09 23:21:02 +00:00
early_printk.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
exec.c sched/headers: Prepare to remove the <linux/mm_types.h> dependency from <linux/sched.h> 2017-03-02 08:42:37 +01:00
exitcode.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
gmon_syms.c um: Fix CONFIG_GCOV for modules. 2017-09-13 22:33:54 +02:00
gprof_syms.c
initrd.c treewide: add checks for the return value of memblock_alloc*() 2019-03-12 10:04:02 -07:00
irq.c um: Remove locking in deactivate_all_fds() 2019-07-02 23:27:05 +02:00
kmsg_dump.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ksyms.c um: Move syscall() declaration into os.h 2015-05-31 13:14:07 +02:00
maccess.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
Makefile um: Support kcov 2016-08-04 00:18:06 +02:00
mem.c initramfs: provide a generic free_initrd_mem implementation 2019-05-14 09:47:47 -07:00
physmem.c mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
process.c um: Fix FP register size for XSTATE/XSAVE 2017-09-13 22:24:38 +02:00
ptrace.c Remove 'type' argument from access_ok() function 2019-01-03 18:57:57 -08:00
reboot.c sched/headers: Prepare to remove the <linux/mm_types.h> dependency from <linux/sched.h> 2017-03-02 08:42:37 +01:00
sigio.c um: Remove obsolete reenable_XX calls 2018-12-27 22:48:35 +01:00
signal.c Revert "um: Fix get_signal() usage" 2016-03-05 22:16:40 +01:00
stacktrace.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
syscall.c mm: add ksys_mmap_pgoff() helper; remove in-kernel calls to sys_mmap_pgoff() 2018-04-02 20:16:11 +02:00
sysrq.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
time.c um: Timer code cleanup 2019-07-02 23:27:00 +02:00
tlb.c um: Optimize Flush TLB for force/fork case 2018-12-27 22:48:34 +01:00
trap.c um: trap: fix spelling mistake, EACCESS -> EACCES 2018-10-29 22:34:15 +01:00
um_arch.c Construct init thread stack in the linker script rather than by union 2018-01-09 23:21:02 +00:00
umid.c um: Use os_warn to print out pre-boot warning/error messages 2017-07-05 23:18:25 +02:00
uml.lds.S Construct init thread stack in the linker script rather than by union 2018-01-09 23:21:02 +00:00
vmlinux.lds.S