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Date: Wed, 16 Apr 2008 06:33:10 -0600 From: Duck <duck@...escale.com> To: linux-kernel@...r.kernel.org Cc: Bruce Schmid <duck@...escale.com>, Dean Nelson <dcn@....com> Subject: [PATCH] generic pool allocator: allow all chunks to be allocated. From: Bruce Schmid <duck@...escale.com> gen_pool_alloc() doesn't allocate the last chunk in a pool. This patch fixes that problem by correcting the calculation of the number of the last bit in the bitmap. Cc: Dean Nelson <dcn@....com> Signed-off-by: Bruce Schmid <duck@...escale.com> --- lib/genalloc.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/lib/genalloc.c b/lib/genalloc.c index f6d276d..ac00492 100644 --- a/lib/genalloc.c +++ b/lib/genalloc.c @@ -127,7 +127,7 @@ unsigned long gen_pool_alloc(struct gen_pool *pool, size_t size) chunk = list_entry(_chunk, struct gen_pool_chunk, next_chunk); end_bit = (chunk->end_addr - chunk->start_addr) >> order; - end_bit -= nbits + 1; + end_bit -= (nbits - 1); spin_lock_irqsave(&chunk->lock, flags); bit = -1; -- 1.5.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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