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Date: Mon, 6 May 2013 23:15:44 +0800 From: Haicheng Li <haicheng.li@...ux.intel.com> To: linux-fsdevel@...r.kernel.org, linux-f2fs-devel@...ts.sourceforge.net, Jaegeuk Kim <jaegeuk.kim@...sung.com> Cc: linux-kernel@...r.kernel.org, Haicheng Li <haicheng.lee@...il.com>, Haicheng Li <haicheng.li@...ux.intel.com> Subject: [PATCH 4/4] f2fs: optimize build_free_nids() When nm_i->fcnt > 2 * MAX_FREE_NIDS, stop scanning other NAT pages. Signed-off-by: Haicheng Li <haicheng.li@...ux.intel.com> --- fs/f2fs/node.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c index 1fe3fe2..3136224 100644 --- a/fs/f2fs/node.c +++ b/fs/f2fs/node.c @@ -1342,6 +1342,8 @@ static void build_free_nids(struct f2fs_sb_info *sbi) if (nid >= nm_i->max_nid) nid = 0; + if (nm_i->fcnt > 2 * MAX_FREE_NIDS) + break; if (i++ == FREE_NID_PAGES) break; } -- 1.7.9.5 -- 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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