AuxXxilium/linux_dsm_epyc7002
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linux_dsm_epyc7002/arch/x86/lib
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Kirill Tkhai 19c6092301 locking/arch, x86: Add __down_read_killable() 
Similar to __down_write_killable(), add read killable primitive:
extract current __down_read() code to macros and teach it to get
different functions as slow_path argument:
store ax register to ret, and add sp register and preserve its value.

Add call_rwsem_down_read_failed_killable() assembly entry similar
to call_rwsem_down_read_failed():
push dx register to stack in additional to common registers,
as it's not declarated as modifiable in ____down_read().

Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: arnd@arndb.de
Cc: avagin@virtuozzo.com
Cc: davem@davemloft.net
Cc: fenghua.yu@intel.com
Cc: gorcunov@virtuozzo.com
Cc: heiko.carstens@de.ibm.com
Cc: hpa@zytor.com
Cc: ink@jurassic.park.msu.ru
Cc: mattst88@gmail.com
Cc: rientjes@google.com
Cc: rth@twiddle.net
Cc: schwidefsky@de.ibm.com
Cc: tony.luck@intel.com
Cc: viro@zeniv.linux.org.uk
Link: http://lkml.kernel.org/r/150670118802.23930.1316107715255410256.stgit@localhost.localdomain
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-10-10 11:50:15 +02:00
..
.gitignore x86: Gitignore: arch/x86/lib/inat-tables.c 2009-11-04 13:11:28 +01:00
atomic64_32.c x86: Adjust asm constraints in atomic64 wrappers 2012-01-20 17:29:31 -08:00
atomic64_386_32.S x86/debug: Remove perpetually broken, unmaintainable dwarf annotations 2015-06-02 07:57:48 +02:00
atomic64_cx8_32.S x86/debug: Remove perpetually broken, unmaintainable dwarf annotations 2015-06-02 07:57:48 +02:00
cache-smp.c x86/lib: Audit and remove any unnecessary uses of module.h 2016-07-14 15:06:58 +02:00
checksum_32.S x86: move exports to actual definitions 2016-08-07 23:47:15 -04:00
clear_page_64.S x86/asm: Optimize clear_page() 2017-03-07 08:28:00 +01:00
cmdline.c x86/boot: Add early cmdline parsing for options with arguments 2017-07-18 11:38:06 +02:00
cmpxchg8b_emu.S x86: move exports to actual definitions 2016-08-07 23:47:15 -04:00
cmpxchg16b_emu.S x86/debug: Remove perpetually broken, unmaintainable dwarf annotations 2015-06-02 07:57:48 +02:00
copy_page_64.S x86: move exports to actual definitions 2016-08-07 23:47:15 -04:00
copy_user_64.S x86/uaccess: Optimize copy_user_enhanced_fast_string() for short strings 2017-06-30 09:52:51 +02:00
cpu.c x86/lib: Audit and remove any unnecessary uses of module.h 2016-07-14 15:06:58 +02:00
csum-copy_64.S x86/asm: Don't use RBP as a temporary register in csum_partial_copy_generic() 2017-05-05 07:59:24 +02:00
csum-partial_64.c x86: move exports to actual definitions 2016-08-07 23:47:15 -04:00
csum-wrappers_64.c Merge branch 'x86-headers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2016-08-01 14:23:42 -04:00
delay.c Prevent timer value 0 for MWAITX 2017-04-30 13:35:11 +02:00
getuser.S x86: move exports to actual definitions 2016-08-07 23:47:15 -04:00
hweight.S Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild 2016-10-14 14:26:58 -07:00
inat.c x86: Fix to decode grouped AVX with VEX pp bits 2012-02-11 15:11:35 +01:00
insn.c x86/insn: Add AVX-512 support to the instruction decoder 2016-07-21 09:37:11 -03:00
iomap_copy_64.S x86/debug: Remove perpetually broken, unmaintainable dwarf annotations 2015-06-02 07:57:48 +02:00
kaslr.c x86/mm/kaslr: Use the _ASM_MUL macro for multiplication to work around Clang incompatibility 2017-05-05 08:31:05 +02:00
Makefile Merge branch 'x86-boot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2016-07-25 17:32:28 -07:00
memcpy_32.c include/linux/string.h: add the option of fortified string.h functions 2017-07-12 16:26:03 -07:00
memcpy_64.S x86/mce: Fix copy/paste error in exception table entries 2017-03-22 08:43:25 +01:00
memmove_64.S x86: move exports to actual definitions 2016-08-07 23:47:15 -04:00
memset_64.S x86: move exports to actual definitions 2016-08-07 23:47:15 -04:00
misc.c x86/boot: Further compress CPUs bootup message 2013-10-01 10:52:30 +02:00
mmx_32.c x86/lib: Audit and remove any unnecessary uses of module.h 2016-07-14 15:06:58 +02:00
msr-reg-export.c x86/lib: Audit and remove any unnecessary uses of module.h 2016-07-14 15:06:58 +02:00
msr-reg.S objtool, x86: Add several functions and files to the objtool whitelist 2017-06-30 10:19:19 +02:00
msr-smp.c x86/lib: Audit and remove any unnecessary uses of module.h 2016-07-14 15:06:58 +02:00
msr.c x86/msr: Cleanup/streamline MSR helpers 2016-11-16 10:23:02 +01:00
putuser.S x86: move exports to actual definitions 2016-08-07 23:47:15 -04:00
rwsem.S locking/arch, x86: Add __down_read_killable() 2017-10-10 11:50:15 +02:00
string_32.c x86/lib: Audit and remove any unnecessary uses of module.h 2016-07-14 15:06:58 +02:00
strstr_32.c x86: move exports to actual definitions 2016-08-07 23:47:15 -04:00
usercopy_32.c x86: switch to RAW_COPY_USER 2017-03-29 12:06:28 -04:00
usercopy_64.c x86, dax, libnvdimm: remove wb_cache_pmem() indirection 2017-06-15 14:35:24 -07:00
usercopy.c x86: switch to RAW_COPY_USER 2017-03-29 12:06:28 -04:00
x86-opcode-map.txt x86/insn: perf tools: Add new ptwrite instruction 2017-06-27 11:58:04 -03:00