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Date: Mon, 4 Dec 2006 18:21:42 +0100 From: Johann Lombardi <johann.lombardi@...l.net> To: linux-ext4@...r.kernel.org Cc: akpm@...l.org Subject: [PATCH] ext4: fix credit calculation in ext4_ext_calc_credits_for_insert Hello, The patch below fixes a nit in ext4_ext_calc_credits_for_insert(). Besides, credits for the new root are already added in the index split accounting. Johann Signed-off-by: Johann Lombardi <johann.lombardi@...l.net> Signed-off-by: Alex Tomas <alex@...sterfs.com> --- Index: linux-2.6.19/fs/ext4/extents.c =================================================================== --- linux-2.6.19.orig/fs/ext4/extents.c 2006-12-04 16:59:41.760257656 +0100 +++ linux-2.6.19/fs/ext4/extents.c 2006-12-04 17:04:35.566592304 +0100 @@ -1534,16 +1534,17 @@ int inline ext4_ext_calc_credits_for_ins /* * tree can be full, so it would need to grow in depth: - * allocation + old root + new root + * we need one credit to modify old root, credits for + * new root will be added in split accounting */ - needed += 2 + 1 + 1; + needed += 1; /* * Index split can happen, we would need: * allocate intermediate indexes (bitmap + group) * + change two blocks at each level, but root (already included) */ - needed = (depth * 2) + (depth * 2); + needed += (depth * 2) + (depth * 2); /* any allocation modifies superblock */ needed += 1; - To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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