linux/include
Sergei Rogachev 94f759d62b mm/page_owner.c: remove unnecessary stack_trace field
Page owner uses the page_ext structure to keep meta-information for every
page in the system.  The structure also contains a field of type 'struct
stack_trace', page owner uses this field during invocation of the function
save_stack_trace.  It is easy to notice that keeping a copy of this
structure for every page in the system is very inefficiently in terms of
memory.

The patch removes this unnecessary field of page_ext and forces page owner
to use a stack_trace structure allocated on the stack.

[akpm@linux-foundation.org: use struct initializers]
Signed-off-by: Sergei Rogachev <rogachevsergei@gmail.com>
Acked-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-02-11 17:06:07 -08:00
..
acpi ACPICA: Events: Introduce ACPI_GPE_DISPATCH_RAW_HANDLER to fix 2 issues for the current GPE APIs 2015-02-05 15:34:51 +01:00
asm-generic mm, asm-generic: define PUD_SHIFT in <asm-generic/4level-fixup.h> 2015-02-11 17:06:03 -08:00
clocksource
crypto crypto: switch af_alg_make_sg() to iov_iter 2015-02-04 01:34:15 -05:00
drm
dt-bindings sound updates for 3.20-rc1 2015-02-11 08:51:59 -08:00
keys
kvm
linux mm/page_owner.c: remove unnecessary stack_trace field 2015-02-11 17:06:07 -08:00
math-emu
media [media] tea575x: split and export functions 2015-01-27 10:13:50 -02:00
memory
misc
net ipv4: Namespecify TCP PMTU mechanism 2015-02-09 18:45:00 -08:00
pcmcia
ras
rdma Revert "IB/core: Add support for extended query device caps" 2015-02-06 00:54:33 -08:00
rxrpc
scsi scsi_logging: return void for dev_printk() functions 2015-02-04 08:00:24 -08:00
soc
sound ALSA: pcm: allow for trigger_tstamp snapshot in .trigger 2015-02-09 16:01:53 +01:00
target
trace mm: when stealing freepages, also take pages created by splitting buddy page 2015-02-11 17:06:06 -08:00
uapi mm:add KPF_ZERO_PAGE flag for /proc/kpageflags 2015-02-11 17:06:00 -08:00
video OMAPDSS: add define for DRA7xx HW version 2015-02-04 12:32:04 +02:00
xen Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2015-02-10 20:01:30 -08:00
Kbuild