linux-kernel - [PATCH] f2fs: free_user_blocks should use reserved

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Date:   Mon, 14 Aug 2017 17:22:32 +0800
From:   Yunlong Song <yunlong.song@...wei.com>
To:     <jaegeuk@...nel.org>, <chao@...nel.org>, <yuchao0@...wei.com>,
        <yunlong.song@...oud.com>, <yunlong.song@...wei.com>
CC:     <miaoxie@...wei.com>, <bintian.wang@...wei.com>,
        <linux-fsdevel@...r.kernel.org>,
        <linux-f2fs-devel@...ts.sourceforge.net>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH] f2fs: free_user_blocks should use reserved_segments instead

The part (overprovision_segments - reserved_segments) can still be used for LFS,
so free_use_blocks should use reserved_segments instead, rather than use
overprovision_segments.

Signed-off-by: Yunlong Song <yunlong.song@...wei.com>
---
 fs/f2fs/gc.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/f2fs/gc.h b/fs/f2fs/gc.h
index 9325191..6258305 100644
--- a/fs/f2fs/gc.h
+++ b/fs/f2fs/gc.h
@@ -49,10 +49,10 @@ struct gc_inode_list {
  */
 static inline block_t free_user_blocks(struct f2fs_sb_info *sbi)
 {
-	if (free_segments(sbi) < overprovision_segments(sbi))
+	if (free_segments(sbi) < reserved_segments(sbi))
 		return 0;
 	else
-		return (free_segments(sbi) - overprovision_segments(sbi))
+		return (free_segments(sbi) - reserved_segments(sbi))
 			<< sbi->log_blocks_per_seg;
 }
 
-- 
1.8.5.2