From: Haicheng Li <haicheng.li@linux.intel.com>
To: linux-fsdevel@vger.kernel.org,
linux-f2fs-devel@lists.sourceforge.net,
Jaegeuk Kim <jaegeuk.kim@samsung.com>
Cc: linux-kernel@vger.kernel.org,
Haicheng Li <haicheng.lee@gmail.com>,
Haicheng Li <haicheng.li@linux.intel.com>
Subject: [PATCH 4/4] f2fs: optimize build_free_nids()
Date: Mon, 6 May 2013 23:15:44 +0800 [thread overview]
Message-ID: <1367853344-28938-5-git-send-email-haicheng.li@linux.intel.com> (raw)
In-Reply-To: <1367853344-28938-1-git-send-email-haicheng.li@linux.intel.com>
When nm_i->fcnt > 2 * MAX_FREE_NIDS, stop scanning other NAT pages.
Signed-off-by: Haicheng Li <haicheng.li@linux.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
next prev parent reply other threads:[~2013-05-06 15:15 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-06 15:15 [PATCH V2 0/4] f2fs: various optimization & bugfixing for node management Haicheng Li
2013-05-06 15:15 ` [PATCH 1/4] f2fs: bugfix for alloc_nid_failed() Haicheng Li
2013-05-06 15:15 ` [PATCH 2/4] f2fs: code cleanup for scan_nat_page() and build_free_nids() Haicheng Li
2013-05-06 15:15 ` [PATCH 3/4] f2fs: optimize scan_nat_page() Haicheng Li
2013-05-07 10:36 ` Jaegeuk Kim
2013-05-08 5:31 ` Haicheng Li
2013-05-06 15:15 ` Haicheng Li [this message]
2013-05-07 10:33 ` [PATCH 4/4] f2fs: optimize build_free_nids() Jaegeuk Kim
2013-05-08 6:24 ` Haicheng Li
2013-05-08 9:50 ` Jaegeuk Kim
2013-05-08 11:50 ` Haicheng Li
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