Commit 543585cc authored by David Rientjes's avatar David Rientjes Committed by Pekka Enberg
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slab: rename slab_break_gfp_order to slab_max_order



slab_break_gfp_order is more appropriately named slab_max_order since it
enforces the maximum order size of slabs as long as a single object will
still fit.

Also rename BREAK_GFP_ORDER_{LO,HI} accordingly.
Acked-by: default avatarChristoph Lameter <cl@linux.com>
Signed-off-by: default avatarDavid Rientjes <rientjes@google.com>
Signed-off-by: default avatarPekka Enberg <penberg@kernel.org>
parent 1ea6b8f4
......@@ -481,9 +481,9 @@ EXPORT_SYMBOL(slab_buffer_size);
/*
* Do not go above this order unless 0 objects fit into the slab.
*/
#define BREAK_GFP_ORDER_HI 1
#define BREAK_GFP_ORDER_LO 0
static int slab_break_gfp_order = BREAK_GFP_ORDER_LO;
#define SLAB_MAX_ORDER_HI 1
#define SLAB_MAX_ORDER_LO 0
static int slab_max_order = SLAB_MAX_ORDER_LO;
/*
* Functions for storing/retrieving the cachep and or slab from the page
......@@ -1502,7 +1502,7 @@ void __init kmem_cache_init(void)
* page orders on machines with more than 32MB of memory.
*/
if (totalram_pages > (32 << 20) >> PAGE_SHIFT)
slab_break_gfp_order = BREAK_GFP_ORDER_HI;
slab_max_order = SLAB_MAX_ORDER_HI;
/* Bootstrap is tricky, because several objects are allocated
* from caches that do not exist yet:
......@@ -2112,7 +2112,7 @@ static size_t calculate_slab_order(struct kmem_cache *cachep,
* Large number of objects is good, but very large slabs are
* currently bad for the gfp()s.
*/
if (gfporder >= slab_break_gfp_order)
if (gfporder >= slab_max_order)
break;
/*
......
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