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| author | Paul Mundt <lethal@linux-sh.org> | 2007-07-15 23:38:24 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-16 09:05:36 -0700 |
| commit | 84a01c2f8ea9bf210b961c6301e8e870a46505a6 (patch) | |
| tree | cf61ff3302d5bfa339f1449bc3302eded09349fd | |
| parent | 5dc4ac6324094cd52dc77ddf88296a94b90bbafc (diff) | |
| download | linux-3.10-84a01c2f8ea9bf210b961c6301e8e870a46505a6.tar.gz linux-3.10-84a01c2f8ea9bf210b961c6301e8e870a46505a6.tar.bz2 linux-3.10-84a01c2f8ea9bf210b961c6301e8e870a46505a6.zip | |
slob: sparsemem support
Currently slob is disabled if we're using sparsemem, due to an earlier
patch from Goto-san. Slob and static sparsemem work without any trouble as
it is, and the only hiccup is a missing slab_is_available() in the case of
sparsemem extreme. With this, we're rid of the last set of restrictions
for slob usage.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
Acked-by: Matt Mackall <mpm@selenic.com>
Cc: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | init/Kconfig | 2 | ||||
| -rw-r--r-- | mm/slob.c | 8 |
2 files changed, 9 insertions, 1 deletions
diff --git a/init/Kconfig b/init/Kconfig index d9d878a3bb4..63d52a089a9 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -576,7 +576,7 @@ config SLUB and has enhanced diagnostics. config SLOB - depends on EMBEDDED && !SPARSEMEM + depends on EMBEDDED bool "SLOB (Simple Allocator)" help SLOB replaces the SLAB allocator with a drastically simpler diff --git a/mm/slob.c b/mm/slob.c index b99b0ef2347..b4899079d8b 100644 --- a/mm/slob.c +++ b/mm/slob.c @@ -634,6 +634,14 @@ int kmem_ptr_validate(struct kmem_cache *a, const void *b) return 0; } +static unsigned int slob_ready __read_mostly; + +int slab_is_available(void) +{ + return slob_ready; +} + void __init kmem_cache_init(void) { + slob_ready = 1; } |