The patch titled
wait_table-and-zonelist-initializing-for-memory-hotadd-wait_table-initialization-fixes
has been removed from the -mm tree. Its filename is
wait_table-and-zonelist-initializing-for-memory-hotadd-wait_table-initialization-fixes.patch
This patch was probably dropped from -mm because
it has now been merged into a subsystem tree or
into Linus's tree, or because it was folded into
its parent patch in the -mm tree.
From: Andrew Morton <akpm@xxxxxxxx>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
Cc: Yasunori Goto <y-goto@xxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
mm/page_alloc.c | 44 ++++++++++++++++++++------------------------
1 files changed, 20 insertions(+), 24 deletions(-)
diff -puN mm/page_alloc.c~wait_table-and-zonelist-initializing-for-memory-hotadd-wait_table-initialization-fixes mm/page_alloc.c
--- devel/mm/page_alloc.c~wait_table-and-zonelist-initializing-for-memory-hotadd-wait_table-initialization-fixes 2006-04-22 01:39:28.000000000 -0700
+++ devel-akpm/mm/page_alloc.c 2006-04-22 01:39:28.000000000 -0700
@@ -1740,25 +1740,21 @@ static inline unsigned long wait_table_h
}
#else
/*
- * XXX: Because zone size might be changed by hot-add,
- * It is hard to determin suitable value for wait_table as traditional.
- * So, we use maximum entries now.
+ * A zone's size might be changed by hot-add, so it is not possible to determine
+ * a suitable size for its wait_table. So we use the maximum size now.
*
- * The max wait table size = 4096 x sizeof(wait_queue_head_t) byte.
- * ex:
- * i386 (preemption config) : 4096 x 16 = 64Kbyte.
- * ia64, x86-64 (no preemption): 4096 x 20 = 80Kbyte.
- * ia64, x86-64 (preemption) : 4096 x 24 = 96Kbyte.
+ * The max wait table size = 4096 x sizeof(wait_queue_head_t). ie:
*
- * The maximum entries are prepared when a zone's memory is
- * (512K + 256) pages or more by traditional way. (See above)
- * It equals ....
- * i386, x86-64, powerpc(4K page size) : = ( 2G + 1M)byte.
- * ia64(16K page size) : = ( 8G + 4M)byte.
- * powerpc (64K page size) : = (32G +16M)byte.
+ * i386 (preemption config) : 4096 x 16 = 64Kbyte.
+ * ia64, x86-64 (no preemption): 4096 x 20 = 80Kbyte.
+ * ia64, x86-64 (preemption) : 4096 x 24 = 96Kbyte.
*
- * If system doesn't have this size or more memory in the future,
- * wait_table might be too bigger than suitable.
+ * The maximum entries are prepared when a zone's memory is (512K + 256) pages
+ * or more by the traditional way. (See above). It equals:
+ *
+ * i386, x86-64, powerpc(4K page size) : = ( 2G + 1M)byte.
+ * ia64(16K page size) : = ( 8G + 4M)byte.
+ * powerpc (64K page size) : = (32G +16M)byte.
*/
static inline unsigned long wait_table_hash_nr_entries(unsigned long pages)
{
@@ -2052,14 +2048,14 @@ int zone_wait_table_init(struct zone *zo
alloc_bootmem_node(pgdat, alloc_size);
} else {
/*
- * XXX: This case means that a zone whose size was 0 gets new
- * memory by memory hot-add.
- * But, this may be the case that "new node" is hotadded.
- * If its case, vmalloc() will not get this new node's
- * memory. Because this wait_table must be initialized
- * to use this new node itself too.
- * To use this new node's memory, further consideration
- * will be necessary.
+ * This case means that a zone whose size was 0 gets new memory
+ * via memory hot-add.
+ * But it may be the case that a new node was hot-added. In
+ * this case vmalloc() will not be able to use this new node's
+ * memory - this wait_table must be initialized to use this new
+ * node itself as well.
+ * To use this new node's memory, further consideration will be
+ * necessary.
*/
zone->wait_table = (wait_queue_head_t *)vmalloc(alloc_size);
}
_
Patches currently in -mm which might be from akpm@xxxxxxxx are
origin.patch
config_net=n-build-fix.patch
git-acpi.patch
acpi-update-asus_acpi-driver-registration-fix.patch
acpi-memory-hotplug-cannot-manage-_crs-with-plural-resoureces.patch
catch-notification-of-memory-add-event-of-acpi-via-container-driver-register-start-func-for-memory-device.patch
catch-notification-of-memory-add-event-of-acpi-via-container-driveravoid-redundant-call-add_memory.patch
remove-for_each_cpu.patch
sony_apci-resume.patch
powernow-k8-crash-workaround.patch
git-dvb.patch
git-gfs2.patch
git-libata-all.patch
git-mtd.patch
git-netdev-all.patch
smc911x-Kconfig-fix.patch
pci-error-recovery-e1000-network-device-driver.patch
git-powerpc.patch
gregkh-pci-pci-64-bit-resources-drivers-others-changes-amba-fix.patch
pci-add-pci_assign_resource_fixed-allow-fixed-address-fix.patch
git-scsi-misc.patch
git-scsi-rc-fixes.patch
areca-raid-linux-scsi-driver-update6-for-2617-rc1-mm3-externs-go-in-headers.patch
enable-advansys-driver.patch
advansys-warning-workaround.patch
git-watchdog.patch
pg_uncached-is-ia64-only.patch
wait_table-and-zonelist-initializing-for-memory-hotadd-wait_table-initialization.patch
wait_table-and-zonelist-initializing-for-memory-hotadd-wait_table-initialization-fixes.patch
pgdat-allocation-for-new-node-add-specify-node-id-powerpc-fix.patch
pgdat-allocation-for-new-node-add-specify-node-id-tidy.patch
pgdat-allocation-for-new-node-add-specify-node-id-fix-3.patch
pgdat-allocation-for-new-node-add-get-node-id-by-acpi-tidy.patch
pgdat-allocation-for-new-node-add-generic-alloc-node_data-tidy.patch
pgdat-allocation-for-new-node-add-refresh-node_data-fix.patch
pgdat-allocation-for-new-node-add-export-kswapd-start-func-tidy.patch
mm-introduce-remap_vmalloc_range-fix.patch
acx1xx-wireless-driver.patch
prune_one_dentry-tweaks.patch
mmput-might-sleep.patch
jbd-avoid-kfree-null.patch
ext3_clear_inode-avoid-kfree-null.patch
leds-amstrad-delta-led-support-tidy.patch
percpu-counter-data-type-changes-to-suppport-fix.patch
connector-exports.patch
hangcheck-remove-monotomic_clock-on-x86.patch
pi-futex-futex-code-cleanups-fix.patch
reiser4.patch
savagefb-add-state-save-and_restore-hooks-tidy.patch
kgdb-core-lite-add-reboot-command.patch
kgdb-8250-fix.patch
nr_blockdev_pages-in_interrupt-warning.patch
device-suspend-debug.patch
revert-tty-buffering-comment-out-debug-code.patch
slab-leaks3-default-y.patch
x86-kmap_atomic-debugging.patch
profile-likely-unlikely-macros-tidy.patch
profile-likely-unlikely-macros-fix.patch
profile-likely-unlikely-macros-fix-2.patch
exit-dont-call-sleeping-things-when-oopsing.patch
-
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
