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Adam Litke 54f9f80d65 hugetlb: Add hugetlb_dynamic_pool sysctl 
The maximum size of the huge page pool can be controlled using the overall
size of the hugetlb filesystem (via its 'size' mount option).  However in the
common case the this will not be set as the pool is traditionally fixed in
size at boot time.  In order to maintain the expected semantics, we need to
prevent the pool expanding by default.

This patch introduces a new sysctl controlling dynamic pool resizing.  When
this is enabled the pool will expand beyond its base size up to the size of
the hugetlb filesystem.  It is disabled by default.

Signed-off-by: Adam Litke <agl@us.ibm.com>
Acked-by: Andy Whitcroft <apw@shadowen.org>
Acked-by: Dave McCracken <dave.mccracken@oracle.com>
Cc: William Irwin <bill.irwin@oracle.com>
Cc: David Gibson <david@gibson.dropbear.id.au>
Cc: Ken Chen <kenchen@google.com>
Cc: Badari Pulavarty <pbadari@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16 09:43:02 -07:00
..
allocpercpu.c Slab allocators: Replace explicit zeroing with __GFP_ZERO 2007-07-17 10:23:02 -07:00
backing-dev.c remove mm/backing-dev.c:congestion_wait_interruptible() 2007-07-16 09:05:52 -07:00
bootmem.c [PATCH] remove EXPORT_UNUSED_SYMBOL'ed symbols 2006-12-07 08:39:44 -08:00
bounce.c Drop 'size' argument from bio_endio and bi_end_io 2007-10-10 09:25:57 +02:00
fadvise.c [PATCH] mm: change uses of f_{dentry,vfsmnt} to use f_path 2006-12-08 08:28:43 -08:00
filemap.c fs: remove some AOP_TRUNCATED_PAGE 2007-10-16 09:42:58 -07:00
filemap_xip.c mm: write iovec cleanup 2007-10-16 09:42:54 -07:00
fremap.c fix VM_CAN_NONLINEAR check in sys_remap_file_pages 2007-10-08 12:58:14 -07:00
highmem.c Create the ZONE_MOVABLE zone 2007-07-17 10:22:59 -07:00
hugetlb.c hugetlb: Add hugetlb_dynamic_pool sysctl 2007-10-16 09:43:02 -07:00
internal.h Breakout page_order() to internal.h to avoid special knowledge of the buddy allocator 2007-10-16 09:43:01 -07:00
Kconfig memory unplug: page offline 2007-10-16 09:43:02 -07:00
madvise.c speed up madvise_need_mmap_write() usage 2007-07-16 09:05:36 -07:00
Makefile memory unplug: page isolation 2007-10-16 09:43:02 -07:00
memory.c flush icache before set_pte() on ia64: flush icache at set_pte 2007-10-16 09:42:59 -07:00
memory_hotplug.c fix memory hot remove not configured case. 2007-10-16 09:43:02 -07:00
mempolicy.c memoryless nodes: fixup uses of node_online_map in generic code 2007-10-16 09:42:59 -07:00
mempool.c Slab allocators: Replace explicit zeroing with __GFP_ZERO 2007-07-17 10:23:02 -07:00
migrate.c flush icache before set_pte() on ia64: flush icache at set_pte 2007-10-16 09:42:59 -07:00
mincore.c [PATCH] mincore: vma crossing fix 2007-02-15 09:57:03 -08:00
mlock.c do not limit locked memory when RLIMIT_MEMLOCK is RLIM_INFINITY 2007-07-16 09:05:37 -07:00
mmap.c fix NULL pointer dereference in __vm_enough_memory() 2007-08-22 19:52:45 -07:00
mmzone.c [PATCH] remove EXPORT_UNUSED_SYMBOL'ed symbols 2006-12-07 08:39:44 -08:00
mprotect.c flush icache before set_pte() on ia64: flush icache at set_pte 2007-10-16 09:42:59 -07:00
mremap.c mm: variable length argument support 2007-07-19 10:04:45 -07:00
msync.c Detach sched.h from mm.h 2007-05-21 09:18:19 -07:00
nommu.c fix NULL pointer dereference in __vm_enough_memory() 2007-08-22 19:52:45 -07:00
oom_kill.c Memoryless nodes: OOM: use N_HIGH_MEMORY map instead of constructing one on the fly 2007-10-16 09:42:58 -07:00
page-writeback.c memoryless nodes: fixup uses of node_online_map in generic code 2007-10-16 09:42:59 -07:00
page_alloc.c memory unplug: page offline 2007-10-16 09:43:02 -07:00
page_io.c Drop 'size' argument from bio_endio and bi_end_io 2007-10-10 09:25:57 +02:00
page_isolation.c memory unplug: page isolation 2007-10-16 09:43:02 -07:00
pdflush.c Freezer: make kernel threads nonfreezable by default 2007-07-17 10:23:02 -07:00
prio_tree.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
quicklist.c Quicklists for page table pages 2007-05-07 12:12:54 -07:00
readahead.c mm: buffered write cleanup 2007-10-16 09:42:54 -07:00
rmap.c flush icache before set_pte() on ia64: flush icache at set_pte 2007-10-16 09:42:59 -07:00
shmem.c Group short-lived and reclaimable kernel allocations 2007-10-16 09:43:00 -07:00
shmem_acl.c [PATCH] Fix typos in mm/shmem_acl.c 2006-10-11 11:14:23 -07:00
slab.c Group short-lived and reclaimable kernel allocations 2007-10-16 09:43:00 -07:00
slob.c Slab allocators: fail if ksize is called with a NULL parameter 2007-10-16 09:42:53 -07:00
slub.c slub: list_locations() can use GFP_TEMPORARY 2007-10-16 09:43:01 -07:00
sparse-vmemmap.c memory hotplug: Hot-add with sparsemem-vmemmap 2007-10-16 09:43:02 -07:00
sparse.c memory hotplug: Hot-add with sparsemem-vmemmap 2007-10-16 09:43:02 -07:00
swap.c mm: use pagevec to rotate reclaimable page 2007-10-16 09:42:54 -07:00
swap_state.c mm: clarify __add_to_swap_cache locking 2007-10-16 09:42:53 -07:00
swapfile.c Replace CONFIG_SOFTWARE_SUSPEND with CONFIG_HIBERNATION 2007-07-29 16:45:38 -07:00
thrash.c Bug in mm/thrash.c function grab_swap_token() 2007-05-11 08:29:32 -07:00
tiny-shmem.c [PATCH] mm/{,tiny-}shmem.c cleanups 2007-03-01 14:53:35 -08:00
truncate.c mm: merge populate and nopage into fault (fixes nonlinear) 2007-07-19 10:04:41 -07:00
util.c Slab allocators: fail if ksize is called with a NULL parameter 2007-10-16 09:42:53 -07:00
vmalloc.c Categorize GFP flags 2007-10-16 09:42:59 -07:00
vmscan.c make swappiness safer to use 2007-10-16 09:42:59 -07:00
vmstat.c Print out statistics in relation to fragmentation avoidance to /proc/pagetypeinfo 2007-10-16 09:43:00 -07:00