AcoSail/kernel_optimize_test
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0b14c179a4
kernel_optimize_test/arch/powerpc/kernel
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Hugh Dickins 0b14c179a4 [PATCH] unpaged: VM_UNPAGED 
Although we tend to associate VM_RESERVED with remap_pfn_range, quite a few
drivers set VM_RESERVED on areas which are then populated by nopage.  The
PageReserved removal in 2.6.15-rc1 changed VM_RESERVED not to free pages in
zap_pte_range, without changing those drivers not to set it: so their pages
just leak away.

Let's not change miscellaneous drivers now: introduce VM_UNPAGED at the core,
to flag the special areas where the ptes may have no struct page, or if they
have then it's not to be touched.  Replace most instances of VM_RESERVED in
core mm by VM_UNPAGED.  Force it on in remap_pfn_range, and the sparc and
sparc64 io_remap_pfn_range.

Revert addition of VM_RESERVED to powerpc vdso, it's not needed there.  Is it
needed anywhere?  It still governs the mm->reserved_vm statistic, and special
vmas not to be merged, and areas not to be core dumped; but could probably be
eliminated later (the drivers are probably specifying it because in 2.4 it
kept swapout off the vma, but in 2.6 we work from the LRU, which these pages
don't get on).

Use the VM_SHM slot for VM_UNPAGED, and define VM_SHM to 0: it serves no
purpose whatsoever, and should be removed from drivers when we clean up.

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Acked-by: William Irwin <wli@holomorphy.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-22 09:13:42 -08:00
..
vdso32 [PATCH] powerpc: Make the vDSO functions set error code (#2) 2005-11-16 14:05:11 +11:00
vdso64 [PATCH] powerpc: Make the vDSO functions set error code (#2) 2005-11-16 14:05:11 +11:00
align.c [PATCH] powerpc: merge align.c 2005-11-18 14:39:23 +11:00
asm-offsets.c [PATCH] powerpc: vdso fixes (take #2) 2005-11-14 16:35:58 +11:00
binfmt_elf32.c ppc64: merge binfmt_elf32.c 2005-10-13 13:40:54 +10:00
btext.c powerpc: Get 64-bit configs to compile with ARCH=powerpc 2005-10-10 22:50:37 +10:00
cpu_setup_power4.S [PATCH] powerpc: Move various ppc64 files with no ppc32 equivalent to powerpc 2005-11-10 11:24:04 +11:00
cputable.c powerpc: Add user CPU features for POWER4, POWER5, POWER5+ and Cell. 2005-11-10 14:29:18 +11:00
dma_64.c powerpc: Move most remaining ppc64 files over to arch/powerpc 2005-11-14 17:30:17 +11:00
entry_32.S powerpc: Rename asm offset TRAP to _TRAP for 32-bit 2005-10-28 22:45:25 +10:00
entry_64.S [PATCH] audit_sysctl_exit can only be used with CONF_AUDIT_SYSCTL 2005-11-01 21:44:46 -08:00
firmware.c [PATCH] powerpc: Move various ppc64 files with no ppc32 equivalent to powerpc 2005-11-10 11:24:04 +11:00
fpu.S [PATCH] powerpc: Consolidate asm compatibility macros 2005-11-10 13:10:38 +11:00
head_4xx.S powerpc: Rename asm offset TRAP to _TRAP for 32-bit 2005-10-28 22:45:25 +10:00
head_8xx.S powerpc: Rename asm offset TRAP to _TRAP for 32-bit 2005-10-28 22:45:25 +10:00
head_32.S powerpc: Initialize secondary CPU setup for 32-bit SMP 2005-11-11 22:34:43 +11:00
head_44x.S [PATCH] powerpc: replace use of _GLOBAL with .globl 2005-10-17 21:43:12 +10:00
head_64.S [PATCH] powerpc: merge code values for identifying platforms 2005-11-10 13:37:51 +11:00
head_fsl_booke.S [PATCH] Update email address for Kumar 2005-11-13 18:14:10 -08:00
idle_6xx.S powerpc: Use reg.h instead of processor.h when we just want reg names 2005-10-10 22:20:10 +10:00
idle_64.c powerpc: Move remaining .c files from arch/ppc64 to arch/powerpc 2005-11-18 15:43:34 +11:00
idle_power4.S [PATCH] powerpc: Fix use of LOADBASE in merge tree 2005-10-17 21:43:12 +10:00
init_task.c powerpc: make process.c suitable for both 32-bit and 64-bit 2005-10-10 22:29:05 +10:00
ioctl32.c [SPARC]: Fix RTC compat ioctl kernel log spam. 2005-11-12 12:10:54 -08:00
iomap.c powerpc: Move most remaining ppc64 files over to arch/powerpc 2005-11-14 17:30:17 +11:00
iommu.c powerpc: Move most remaining ppc64 files over to arch/powerpc 2005-11-14 17:30:17 +11:00
irq.c powerpc: have only one definition of __irq_offset_value 2005-11-14 14:44:33 +11:00
kprobes.c powerpc: Move most remaining ppc64 files over to arch/powerpc 2005-11-14 17:30:17 +11:00
lparcfg.c powerpc: iSeries build fixes 2005-11-14 17:14:51 +11:00
lparmap.c [PATCH] ppc64: support 64k pages 2005-11-06 16:56:47 -08:00
machine_kexec_64.c powerpc: Move most remaining ppc64 files over to arch/powerpc 2005-11-14 17:30:17 +11:00
Makefile powerpc: Move remaining .c files from arch/ppc64 to arch/powerpc 2005-11-18 15:43:34 +11:00
misc_32.S powerpc: Fix delay functions for 601 processors 2005-11-18 14:08:12 +11:00
misc_64.S ppc64: remove ppc_irq_dispatch_handler 2005-11-09 16:19:53 +11:00
module_64.c powerpc: Move most remaining ppc64 files over to arch/powerpc 2005-11-14 17:30:17 +11:00
nvram_64.c powerpc: Move remaining .c files from arch/ppc64 to arch/powerpc 2005-11-18 15:43:34 +11:00
of_device.c powerpc: apply recent changes to merged code 2005-10-31 13:57:01 +11:00
paca.c [PATCH] powerpc: Merge vdso's and add vdso support to 32 bits kernel 2005-11-11 22:25:39 +11:00
pci_64.c powerpc: Merge pci.h 2005-11-19 20:46:04 +11:00
pci_direct_iommu.c powerpc: Move most remaining ppc64 files over to arch/powerpc 2005-11-14 17:30:17 +11:00
pci_dn.c powerpc: Move most remaining ppc64 files over to arch/powerpc 2005-11-14 17:30:17 +11:00
pci_iommu.c powerpc: Move most remaining ppc64 files over to arch/powerpc 2005-11-14 17:30:17 +11:00
pmc.c [PATCH] powerpc: Merge ppc64 pmc.[ch] with ppc32 perfmon.[ch] 2005-10-20 16:22:24 +10:00
ppc32.h powerpc: move include/asm-ppc64/ppc32.h to arch/powerpc/kernel 2005-11-03 16:03:28 +11:00
ppc_ksyms.c powerpc: Merge pci.h 2005-11-19 20:46:04 +11:00
proc_ppc64.c [PATCH] powerpc: Merge vdso's and add vdso support to 32 bits kernel 2005-11-11 22:25:39 +11:00
process.c Merge ../linux-2.6 2005-11-07 14:42:09 +11:00
prom_init.c [PATCH] powerpc: merge code values for identifying platforms 2005-11-10 13:37:51 +11:00
prom.c powerpc: Export a couple of prom functions 2005-11-14 17:30:40 +11:00
ptrace32.c powerpc: move include/asm-ppc64/ptrace-common.h to arch/powerpc/kernel 2005-11-19 20:47:22 +11:00
ptrace-common.h powerpc: move include/asm-ppc64/ptrace-common.h to arch/powerpc/kernel 2005-11-19 20:47:22 +11:00
ptrace.c powerpc: move include/asm-ppc64/ptrace-common.h to arch/powerpc/kernel 2005-11-19 20:47:22 +11:00
rtas_flash.c powerpc: Merge remaining RTAS code 2005-11-03 14:41:19 +11:00
rtas_pci.c [PATCH] powerpc: pci_64 fixes & cleanups 2005-11-16 13:29:46 +11:00
rtas-proc.c [PATCH] powerpc: Merge vdso's and add vdso support to 32 bits kernel 2005-11-11 22:25:39 +11:00
rtas-rtc.c powerpc: time-of-day fixes for 32-bit CHRP systems 2005-11-18 15:52:38 +11:00
rtas.c [PATCH] powerpc: merge code values for identifying platforms 2005-11-10 13:37:51 +11:00
semaphore.c powerpc: Merge enough to start building in arch/powerpc. 2005-09-26 16:04:21 +10:00
setup_32.c powerpc: have only one definition of __irq_offset_value 2005-11-14 14:44:33 +11:00
setup_64.c [PATCH] powerpc: Export htab start/end via device tree 2005-11-14 16:34:06 +11:00
setup-common.c [PATCH] powerpc: More debugging fixups 2005-11-16 13:29:40 +11:00
setup.h powerpc: create kernel/setup.h 2005-11-09 11:35:26 +11:00
signal_32.c powerpc: Fix clearing of the FPSCR when invoking a signal handler 2005-11-15 11:11:32 +11:00
signal_64.c powerpc: Fix clearing of the FPSCR when invoking a signal handler 2005-11-15 11:11:32 +11:00
smp-tbsync.c powerpc: Merge smp-tbsync.c (the generic timebase sync routine) 2005-11-04 13:28:58 +11:00
smp.c [PATCH] powerpc: More debugging fixups 2005-11-16 13:29:40 +11:00
sys_ppc32.c [PATCH] powerpc: merge code values for identifying platforms 2005-11-10 13:37:51 +11:00
syscalls.c [PATCH] powerpc: Fix mmap returning 64 bit addresses 2005-10-21 22:47:52 +10:00
sysfs.c [PATCH] powerpc: Merge vdso's and add vdso support to 32 bits kernel 2005-11-11 22:25:39 +11:00
systbl.S Merge rsync://oak/kernels/iseries/work/ 2005-10-18 14:53:41 +10:00
time.c powerpc: Fix delay functions for 601 processors 2005-11-18 14:08:12 +11:00
traps.c [PATCH] powerpc: Merge vdso's and add vdso support to 32 bits kernel 2005-11-11 22:25:39 +11:00
udbg_16550.c [PATCH] powerpc: Move udbg code to arch/powerpc 2005-11-11 22:23:34 +11:00
udbg_scc.c [PATCH] powerpc: Move udbg code to arch/powerpc 2005-11-11 22:23:34 +11:00
udbg.c [PATCH] powerpc: Move udbg code to arch/powerpc 2005-11-11 22:23:34 +11:00
vdso.c [PATCH] unpaged: VM_UNPAGED 2005-11-22 09:13:42 -08:00
vecemu.c [PATCH] powerpc: Move arch/ppc*/kernel/vecemu.c to arch/powerpc 2005-09-21 19:21:07 +10:00
vector.S powerpc: Use reg.h instead of processor.h when we just want reg names 2005-10-10 22:20:10 +10:00
vio.c [PATCH] ppc64: add MODALIAS= for vio bus 2005-11-09 07:55:51 -08:00
vmlinux.lds.S powerpc: Fix vmlinux.lds.S for 32-bit 2005-11-05 10:36:59 +11:00