From 58c410351eba3d24f741c85a0eb9eaf15c94047d Mon Sep 17 00:00:00 2001 From: Jaegeuk Kim Date: Wed, 19 Mar 2014 14:17:21 +0900 Subject: f2fs: change reclaim rate in percentage It is more reasonable to determine the reclaiming rate of prefree segments according to the volume size, which is set to 5% by default. For example, if the volume is 128GB, the prefree segments are reclaimed when the number reaches to 6.4GB. Signed-off-by: Jaegeuk Kim --- fs/f2fs/segment.c | 3 ++- fs/f2fs/segment.h | 2 +- 2 files changed, 3 insertions(+), 2 deletions(-) (limited to 'fs/f2fs') diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index 6c5a4f0218ca..e7ff23a536a4 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -1758,7 +1758,8 @@ int build_segment_manager(struct f2fs_sb_info *sbi) sm_info->ovp_segments = le32_to_cpu(ckpt->overprov_segment_count); sm_info->main_segments = le32_to_cpu(raw_super->segment_count_main); sm_info->ssa_blkaddr = le32_to_cpu(raw_super->ssa_blkaddr); - sm_info->rec_prefree_segments = DEF_RECLAIM_PREFREE_SEGMENTS; + sm_info->rec_prefree_segments = sm_info->main_segments * + DEF_RECLAIM_PREFREE_SEGMENTS / 100; sm_info->ipu_policy = F2FS_IPU_DISABLE; sm_info->min_ipu_util = DEF_MIN_IPU_UTIL; diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h index 9fc46ee27bb8..7091204680f4 100644 --- a/fs/f2fs/segment.h +++ b/fs/f2fs/segment.h @@ -14,7 +14,7 @@ #define NULL_SEGNO ((unsigned int)(~0)) #define NULL_SECNO ((unsigned int)(~0)) -#define DEF_RECLAIM_PREFREE_SEGMENTS 100 /* 200MB of prefree segments */ +#define DEF_RECLAIM_PREFREE_SEGMENTS 5 /* 5% over total segments */ /* L: Logical segment # in volume, R: Relative segment # in main area */ #define GET_L2R_SEGNO(free_i, segno) (segno - free_i->start_segno) -- cgit v1.2.3