linux-toradex.git/mm/mempool.c, branch v2.6.29.4

spelling fixes: mm/

2007-10-19T23:27:18+00:00

Spelling fixes in mm/.

Signed-off-by: Simon Arlott 
Signed-off-by: Adrian Bunk

Slab allocators: Replace explicit zeroing with __GFP_ZERO

2007-07-17T17:23:02+00:00

kmalloc_node() and kmem_cache_alloc_node() were not available in a zeroing
variant in the past.  But with __GFP_ZERO it is possible now to do zeroing
while allocating.

Use __GFP_ZERO to remove the explicit clearing of memory via memset whereever
we can.

Signed-off-by: Christoph Lameter 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

permit mempool_free(NULL)

2007-07-16T16:05:52+00:00

Christian Borntraeger points out that mempool_free() doesn't noop when
handed NULL.  This is inconsistent with the other free-like functions
in the kernel.

Signed-off-by: Rusty Russell 
Cc: Christian Borntraeger 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] Numerous fixes to kernel-doc info in source files.

2007-02-11T18:51:32+00:00

A variety of (mostly) innocuous fixes to the embedded kernel-doc content in
source files, including:

  * make multi-line initial descriptions single line
  * denote some function names, constants and structs as such
  * change erroneous opening '/*' to '/**' in a few places
  * reword some text for clarity

Signed-off-by: Robert P. J. Day 
Cc: "Randy.Dunlap" 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] dm: work around mempool_alloc, bio_alloc_bioset deadlocks

2006-09-01T18:39:09+00:00

This patch works around a complex dm-related deadlock/livelock down in the
mempool allocator.

Alasdair said:

  Several dm targets suffer from this.

  Mempools are not yet used correctly everywhere in device-mapper: they can
  get shared when devices are stacked, and some targets share them across
  multiple instances.  I made fixing this one of the prerequisites for this
  patch:

    md-dm-reduce-stack-usage-with-stacked-block-devices.patch

  which in some cases makes people more likely to hit the problem.

  There's been some progress on this recently with (unfinished) dm-crypt
  patches at:

    http://www.kernel.org/pub/linux/kernel/people/agk/patches/2.6/editing/
      (dm-crypt-move-io-to-workqueue.patch plus dependencies)

and:

  I've no problems with a temporary workaround like that, but Milan Broz (a
  new Redhat developer in the Czech Republic) has started reviewing all the
  mempool usage in device-mapper so I'm expecting we'll soon have a proper fix
  for this associated problems.  [He's back from holiday at the start of next
  week.]

For now, this sad-but-safe little patch will allow the machine to recover.

[akpm@osdl.org: rewrote changelog]
Cc: Alasdair G Kergon 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial

2006-03-26T17:41:18+00:00

* git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial:
  drivers/char/ftape/lowlevel/fdc-io.c: Correct a comment
  Kconfig help: MTD_JEDECPROBE already supports Intel
  Remove ugly debugging stuff
  do_mounts.c: Minor ROOT_DEV comment cleanup
  BUG_ON() Conversion in drivers/s390/block/dasd_devmap.c
  BUG_ON() Conversion in mm/mempool.c
  BUG_ON() Conversion in mm/memory.c
  BUG_ON() Conversion in kernel/fork.c
  BUG_ON() Conversion in ipc/sem.c
  BUG_ON() Conversion in fs/ext2/
  BUG_ON() Conversion in fs/hfs/
  BUG_ON() Conversion in fs/dcache.c
  BUG_ON() Conversion in fs/buffer.c
  BUG_ON() Conversion in input/serio/hp_sdc_mlc.c
  BUG_ON() Conversion in md/dm-table.c
  BUG_ON() Conversion in md/dm-path-selector.c
  BUG_ON() Conversion in drivers/isdn
  BUG_ON() Conversion in drivers/char
  BUG_ON() Conversion in drivers/mtd/

[PATCH] mempool: add kzalloc allocator

2006-03-26T16:56:59+00:00

Add another allocator to the common mempool code: a kzalloc/kfree allocator

This will be used by the next patch in the series to replace a mempool-backed
kzalloc allocator.  It is also very likely that there will be more users in
the future.

Signed-off-by: Matthew Dobson 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] mempool: add kmalloc allocator

2006-03-26T16:56:59+00:00

Add another allocator to the common mempool code: a kmalloc/kfree allocator

This will be used by the next patch in the series to replace duplicate
mempool-backed kmalloc allocators in several places in the kernel.  It is also
very likely that there will be more users in the future.

Signed-off-by: Matthew Dobson 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] mempool: add page allocator

2006-03-26T16:56:59+00:00

This will be used by the next patch in the series to replace duplicate
mempool-backed page allocators in 2 places in the kernel.  It is also likely
that there will be more users in the future.

Signed-off-by: Matthew Dobson 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

BUG_ON() Conversion in mm/mempool.c

2006-03-26T16:31:56+00:00

this changes if() BUG(); constructs to BUG_ON() which is
cleaner, contains unlikely() and can better optimized away.

Signed-off-by: Eric Sesterhenn 
Signed-off-by: Adrian Bunk