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8892d8545f
linux/arch
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Anton Ivanov 8892d8545f um: Avoid marking pages with "changed protection" 
Changing protection is a very high cost operation in UML
because in addition to an extra syscall it also interrupts
mmap merge sequences generated by the tlb.

While the condition is not particularly common it is worth
avoiding.

Signed-off-by: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
2018-12-27 22:48:34 +01:00
..
alpha alpha: fix hang caused by the bootmem removal 2018-12-14 15:05:44 -08:00
arc ARC: io.h: Implement reads{x}()/writes{x}() 2018-11-30 11:26:29 -08:00
arm ARM: SoC fixes 2018-12-10 09:06:22 -08:00
arm64 mm: introduce common STRUCT_PAGE_MAX_SHIFT define 2018-12-14 15:05:45 -08:00
c6x c6x changes for 4.20 2018-10-31 15:39:25 -07:00
csky csky: bugfix tlb_get_pgd error. 2018-12-03 10:49:11 +08:00
h8300 mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
hexagon mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
ia64 ia64: export node_distance function 2018-11-26 18:30:40 -08:00
m68k m68k fixes for 4.20 2018-12-20 07:35:16 -08:00
microblaze microblaze: function_graph: Simplify with function_graph_enter() 2018-11-27 20:30:18 -05:00
mips A few more MIPS fixes for 4.20: 2018-11-30 18:41:06 -08:00
nds32 nds32: function_graph: Simplify with function_graph_enter() 2018-11-27 20:30:43 -05:00
nios2 mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
openrisc mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
parisc Merge branch 'parisc-4.20-4' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux 2018-12-04 09:10:39 -08:00
powerpc powerpc fixes for 4.20 #4 2018-12-14 09:33:34 -08:00
riscv While rewriting the function graph tracer, I discovered a design flaw that 2018-11-30 09:32:34 -08:00
s390 While rewriting the function graph tracer, I discovered a design flaw that 2018-11-30 09:32:34 -08:00
sh arch/sh/include/asm/io.h: provide prototypes for PCI I/O mapping in asm/io.h 2018-12-14 15:05:45 -08:00
sparc sparc: Set "ARCH: sunxx" information on the same line 2018-12-21 11:24:38 -08:00
um um: Avoid marking pages with "changed protection" 2018-12-27 22:48:34 +01:00
unicore32 memblock: stop using implicit alignment to SMP_CACHE_BYTES 2018-10-31 08:54:16 -07:00
x86 Unbreak AMD nested virtualization. 2018-12-21 11:15:36 -08:00
xtensa xtensa: fix coprocessor part of ptrace_{get,set}xregs 2018-11-26 18:37:51 -08:00
.gitignore
Kconfig New gcc plugin: stackleak 2018-11-01 11:46:27 -07:00