Shaohua Li 33806f06da swap: make each swap partition have one address_space ...

When I use several fast SSD to do swap, swapper_space.tree_lock is
heavily contended.  This makes each swap partition have one
address_space to reduce the lock contention.  There is an array of
address_space for swap.  The swap entry type is the index to the array.

In my test with 3 SSD, this increases the swapout throughput 20%.

[akpm@linux-foundation.org: revert unneeded change to  __add_to_swap_cache]
Signed-off-by: Shaohua Li <shli@fusionio.com>
Cc: Hugh Dickins <hughd@google.com>
Acked-by: Rik van Riel <riel@redhat.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2013-02-23 17:50:17 -08:00

..

array.c

cputime: Use accessors to read task cputime stats

2013-01-27 19:23:31 +01:00

base.c

procfs: drop vmtruncate

2012-12-20 14:00:01 -05:00

cmdline.c

…

consoles.c

…

cpuinfo.c

…

devices.c

…

fd.c

procfs: add ability to plug in auxiliary fdinfo providers

2012-12-17 17:15:27 -08:00

fd.h

…

generic.c

proc: Allow proc_free_inum to be called from any context

2012-12-25 16:23:12 -08:00

inode.c

…

internal.h

…

interrupts.c

…

Kconfig

…

kcore.c

procfs: use N_MEMORY instead N_HIGH_MEMORY

2012-12-12 17:38:32 -08:00

kmsg.c

…

loadavg.c

…

Makefile

tty: Added a CONFIG_TTY option to allow removal of TTY

2013-01-18 16:15:27 -08:00

meminfo.c

swap: make each swap partition have one address_space

2013-02-23 17:50:17 -08:00

mmu.c

…

namespaces.c

…

nommu.c

…

page.c

…

proc_devtree.c

procfs: use kbasename()

2012-12-17 17:15:17 -08:00

proc_net.c

net: proc: remove proc_net_remove

2013-02-18 14:53:08 -05:00

proc_sysctl.c

procfs: drop vmtruncate

2012-12-20 14:00:01 -05:00

proc_tty.c

…

root.c

…

self.c

…

softirqs.c

…

stat.c

…

task_mmu.c

mempolicy: remove arg from mpol_parse_str, mpol_to_str

2013-01-02 09:27:10 -08:00

task_nommu.c

…

uptime.c

…

version.c

…

vmcore.c

…