kernel_optimize_test/include
Cliff Wickman 956db3ca06 hotplug cpu: move tasks in empty cpusets to parent
This patch corrects a situation that occurs when one disables all the cpus in
a cpuset.

Currently, the disabled (cpu-less) cpuset inherits the cpus of its parent,
which is incorrect because it may then overlap its cpu-exclusive sibling.

Tasks of an empty cpuset should be moved to the cpuset which is the parent of
their current cpuset.  Or if the parent cpuset has no cpus, to its parent,
etc.

And the empty cpuset should be released (if it is flagged notify_on_release).

Depends on the cgroup_scan_tasks() function (proposed by David Rientjes) to
iterate through all tasks in the cpu-less cpuset.  We are deliberately
avoiding a walk of the tasklist.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Cliff Wickman <cpw@sgi.com>
Cc: Paul Menage <menage@google.com>
Cc: Paul Jackson <pj@sgi.com>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-07 08:42:22 -08:00
..
acpi include/acpi/: Spelling fixes 2008-02-03 17:07:16 +02:00
asm-alpha alpha: fix warning by fixing flush_tlb_kernel_range() 2008-02-05 09:44:22 -08:00
asm-arm Merge branch 'async-tx-for-linus' of git://lost.foo-projects.org/~dwillia2/git/iop into fix 2008-02-06 11:16:11 -08:00
asm-avr32 Fix __const_udelay declaration and definition mismatches 2008-02-06 10:41:06 -08:00
asm-blackfin remove mm_{ptov,vtop}() 2008-02-06 10:41:01 -08:00
asm-cris cris: remove unused __dummy, CONST_ADDR and ADDR from bitops.h 2008-02-05 09:44:24 -08:00
asm-frv timerfd: fix remaining architectures 2008-02-05 14:37:15 -08:00
asm-generic remove support for un-needed _extratext section 2008-02-06 10:41:01 -08:00
asm-h8300 remove mm_{ptov,vtop}() 2008-02-06 10:41:01 -08:00
asm-ia64 Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 2008-02-05 10:24:52 -08:00
asm-m32r Fix __const_udelay declaration and definition mismatches 2008-02-06 10:41:06 -08:00
asm-m68k cleanup after APUS removal 2008-02-06 10:41:01 -08:00
asm-m68knommu remove mm_{ptov,vtop}() 2008-02-06 10:41:01 -08:00
asm-mips add mm argument to pte/pmd/pud/pgd_free 2008-02-05 09:44:18 -08:00
asm-parisc add mm argument to pte/pmd/pud/pgd_free 2008-02-05 09:44:18 -08:00
asm-powerpc ps3: use symbolic names for video modes 2008-02-06 10:41:17 -08:00
asm-ppc add mm argument to pte/pmd/pud/pgd_free 2008-02-05 09:44:18 -08:00
asm-s390 taskstats scaled time cleanup 2008-02-06 10:41:00 -08:00
asm-sh Fix __const_udelay declaration and definition mismatches 2008-02-06 10:41:06 -08:00
asm-sparc [SPARC]: Add new timerfd syscall entries. 2008-02-06 04:12:23 -08:00
asm-sparc64 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6 2008-02-06 10:46:58 -08:00
asm-um uml: LDT mutex conversion 2008-02-05 09:44:31 -08:00
asm-v850 remove mm_{ptov,vtop}() 2008-02-06 10:41:01 -08:00
asm-x86 tty: fix tty network driver interactions with TCGET/TCSET calls (x86 fix) 2008-02-07 08:42:16 -08:00
asm-xtensa add mm argument to pte/pmd/pud/pgd_free 2008-02-05 09:44:18 -08:00
crypto
keys
linux hotplug cpu: move tasks in empty cpusets to parent 2008-02-07 08:42:22 -08:00
math-emu
media include/media/: Spelling fixes 2008-02-03 17:19:47 +02:00
mtd
net 9p: add support for sticky bit 2008-02-06 19:25:06 -06:00
pcmcia pcmcia: replace kio_addr_t with unsigned int everywhere 2008-02-05 09:44:08 -08:00
rdma
rxrpc
scsi include/scsi/: Spelling fixes 2008-02-03 17:47:00 +02:00
sound [ALSA] version 1.0.16rc2 2008-01-31 17:40:18 +01:00
video atmel_lcdfb: backlight control 2008-02-06 10:41:16 -08:00
xen
Kbuild