Adam Litke 2fc39cec6a hugetlb: debit quota in alloc_huge_page ...

Now that quota is credited by free_huge_page(), calls to hugetlb_get_quota()
seem out of place.  The alloc/free API is unbalanced because we handle the
hugetlb_put_quota() but expect the caller to open-code hugetlb_get_quota().
Move the get inside alloc_huge_page to clean up this disparity.

This patch has been kept apart from the previous patch because of the somewhat
dodgy ERR_PTR() use herein.  Moving the quota logic means that
alloc_huge_page() has two failure modes.  Quota failure must result in a
SIGBUS while a standard allocation failure is OOM.  Unfortunately, ERR_PTR()
doesn't like the small positive errnos we have in VM_FAULT_* so they must be
negated before they are used.

Does anyone take issue with the way I am using PTR_ERR.  If so, what are your
thoughts on how to clean this up (without needing an if,else if,else block at
each alloc_huge_page() callsite)?

Signed-off-by: Adam Litke <agl@us.ibm.com>
Cc: Ken Chen <kenchen@google.com>
Cc: Andy Whitcroft <apw@shadowen.org>
Cc: Dave Hansen <haveblue@us.ibm.com>
Cc: David Gibson <hermes@gibson.dropbear.id.au>
Cc: William Lee Irwin III <wli@holomorphy.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2007-11-14 18:45:40 -08:00

..

allocpercpu.c

Slab allocators: Replace explicit zeroing with __GFP_ZERO

2007-07-17 10:23:02 -07:00

backing-dev.c

mm: per device dirty threshold

2007-10-17 08:42:45 -07:00

bootmem.c

[PATCH] remove EXPORT_UNUSED_SYMBOL'ed symbols

2006-12-07 08:39:44 -08:00

bounce.c

block: Initial support for data-less (or empty) barrier support

2007-10-16 11:03:56 +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_xip.c

mm: write iovec cleanup

2007-10-16 09:42:54 -07:00

filemap.c

Remove broken ptrace() special-case code from file mapping

2007-10-31 09:19:46 -07:00

fremap.c

remap_file_pages: kernel-doc corrections

2007-10-17 08:43:07 -07:00

highmem.c

Create the ZONE_MOVABLE zone

2007-07-17 10:22:59 -07:00

hugetlb.c

hugetlb: debit quota in alloc_huge_page

2007-11-14 18:45:40 -08:00

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

small documentation fixes

2007-10-20 02:46:58 +02:00

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_hotplug.c

Add IORESOUCE_BUSY flag for System RAM

2007-11-14 18:45:39 -08:00

memory.c

hugetlb: follow_hugetlb_page() for write access

2007-11-14 18:45:39 -08:00

mempolicy.c

Migration: find correct vma in new_vma_page()

2007-11-14 18:45:38 -08:00

mempool.c

spelling fixes: mm/

2007-10-20 01:27:18 +02:00

migrate.c

Typo fixes retrun -> return

2007-10-20 02:13:26 +02:00

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 mprotect vma_wants_writenotify prot

2007-10-23 08:32:06 -07:00

mmzone.c

[PATCH] remove EXPORT_UNUSED_SYMBOL'ed symbols

2006-12-07 08:39:44 -08:00

mprotect.c

fix mprotect vma_wants_writenotify prot

2007-10-23 08:32:06 -07:00

mremap.c

sparse pointer use of zero as null

2007-10-18 14:37:31 -07:00

msync.c

Detach sched.h from mm.h

2007-05-21 09:18:19 -07:00

nommu.c

NOMMU: mm/nommu.c needs linux/module.h

2007-10-29 07:53:26 -07:00

oom_kill.c

oom_kill bug

2007-10-20 15:04:06 -07:00

page_alloc.c

Revert "Bias the placement of kernel pages at lower PFNs"

2007-11-12 14:14:44 -08:00

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 hotremove: unset migrate type "ISOLATE" after removal

2007-11-14 18:45:38 -08:00

page-writeback.c

mm: speed up writeback ramp-up on clean systems

2007-11-14 18:45:38 -08:00

pdflush.c

Freezer: make kernel threads nonfreezable by default

2007-07-17 10:23:02 -07:00

prio_tree.c

spelling fixes: mm/

2007-10-20 01:27:18 +02:00

quicklist.c

Quicklists for page table pages

2007-05-07 12:12:54 -07:00

readahead.c

mm: bdi init hooks

2007-10-17 08:42:45 -07:00

rmap.c

Migration: find correct vma in new_vma_page()

2007-11-14 18:45:38 -08:00

shmem_acl.c

[PATCH] Fix typos in mm/shmem_acl.c

2006-10-11 11:14:23 -07:00

shmem.c

fix tmpfs BUG and AOP_WRITEPAGE_ACTIVATE

2007-10-30 08:06:55 -07:00

slab.c

slab: fix typo in allocation failure handling

2007-11-14 18:45:36 -08:00

slob.c

Slab API: remove useless ctor parameter and reorder parameters

2007-10-17 08:42:45 -07:00

slub.c

SLUB: killed the unused "end" variable

2007-11-12 10:32:29 -08:00

sparse-vmemmap.c

mm/sparse-vmemmap.c: make sure init_mm is included

2007-10-30 08:06:55 -07:00

sparse.c

Revert "x86_64: allocate sparsemem memmap above 4G"

2007-10-29 14:05:37 -07:00

swap_state.c

mm: clarify __add_to_swap_cache locking

2007-10-16 09:42:53 -07:00

swap.c

spelling fixes: mm/

2007-10-20 01:27:18 +02:00

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

r/o bind mounts: filesystem helpers for custom 'struct file's

2007-10-17 08:43:04 -07:00

truncate.c

Drop some headers from mm.h

2007-10-17 08:42:55 -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

spelling fixes: mm/

2007-10-20 01:27:18 +02:00

vmscan.c

spelling fixes: mm/

2007-10-20 01:27:18 +02:00

vmstat.c

oom: change all_unreclaimable zone member to flags

2007-10-17 08:42:45 -07:00