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authorChristoph Lameter <cl@linux.com>2015-06-29 09:28:08 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2015-06-29 10:49:51 -0700
commita9730fca9946f3697410479e0ef1bd759ba00a77 (patch)
tree0708dfc873d6df1e7df1ce7cd6575f19cd8b5ed0 /include/linux/slab.h
parent88793e5c774ec69351ef6b5200bb59f532e41bca (diff)
downloadop-kernel-dev-a9730fca9946f3697410479e0ef1bd759ba00a77.zip
op-kernel-dev-a9730fca9946f3697410479e0ef1bd759ba00a77.tar.gz
Fix kmalloc slab creation sequence
This patch restores the slab creation sequence that was broken by commit 4066c33d0308f8 and also reverts the portions that introduced the KMALLOC_LOOP_XXX macros. Those can never really work since the slab creation is much more complex than just going from a minimum to a maximum number. The latest upstream kernel boots cleanly on my machine with a 64 bit x86 configuration under KVM using either SLAB or SLUB. Fixes: 4066c33d0308f8 ("support the slub_debug boot option") Reported-by: Theodore Ts'o <tytso@mit.edu> Signed-off-by: Christoph Lameter <cl@linux.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/slab.h')
-rw-r--r--include/linux/slab.h22
1 files changed, 0 insertions, 22 deletions
diff --git a/include/linux/slab.h b/include/linux/slab.h
index 9de2fdc..a99f0e5 100644
--- a/include/linux/slab.h
+++ b/include/linux/slab.h
@@ -153,30 +153,8 @@ size_t ksize(const void *);
#define ARCH_KMALLOC_MINALIGN ARCH_DMA_MINALIGN
#define KMALLOC_MIN_SIZE ARCH_DMA_MINALIGN
#define KMALLOC_SHIFT_LOW ilog2(ARCH_DMA_MINALIGN)
-/*
- * The KMALLOC_LOOP_LOW is the definition for the for loop index start number
- * to create the kmalloc_caches object in create_kmalloc_caches(). The first
- * and the second are 96 and 192. You can see that in the kmalloc_index(), if
- * the KMALLOC_MIN_SIZE <= 32, then return 1 (96). If KMALLOC_MIN_SIZE <= 64,
- * then return 2 (192). If the KMALLOC_MIN_SIZE is bigger than 64, we don't
- * need to initialize 96 and 192. Go directly to start the KMALLOC_SHIFT_LOW.
- */
-#if KMALLOC_MIN_SIZE <= 32
-#define KMALLOC_LOOP_LOW 1
-#elif KMALLOC_MIN_SIZE <= 64
-#define KMALLOC_LOOP_LOW 2
-#else
-#define KMALLOC_LOOP_LOW KMALLOC_SHIFT_LOW
-#endif
-
#else
#define ARCH_KMALLOC_MINALIGN __alignof__(unsigned long long)
-/*
- * The KMALLOC_MIN_SIZE of slub/slab/slob is 2^3/2^5/2^3. So, even slab is used.
- * The KMALLOC_MIN_SIZE <= 32. The kmalloc-96 and kmalloc-192 should also be
- * initialized.
- */
-#define KMALLOC_LOOP_LOW 1
#endif
/*
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