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f2fs: export SSR allocation threshold

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This patch exports min_ssr_segments threshold in sysfs to let user
control triggering SSR allocation flexibly.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu
2017-10-28 16:52:33 +08:00
committed by Jaegeuk Kim
parent 0ea805129d
commit a2a12b679f
4 changed files with 12 additions and 1 deletions
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3
fs/f2fs/segment.c
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@@ -181,7 +181,7 @@ bool need_SSR(struct f2fs_sb_info *sbi)
return true;
return free_sections(sbi) <= (node_secs + 2 * dent_secs + imeta_secs +
2 * reserved_sections(sbi));
SM_I(sbi)->min_ssr_sections + reserved_sections(sbi));
}
void register_inmem_page(struct inode *inode, struct page *page)
@@ -3671,6 +3671,7 @@ int build_segment_manager(struct f2fs_sb_info *sbi)
sm_info->min_ipu_util = DEF_MIN_IPU_UTIL;
sm_info->min_fsync_blocks = DEF_MIN_FSYNC_BLOCKS;
sm_info->min_hot_blocks = DEF_MIN_HOT_BLOCKS;
sm_info->min_ssr_sections = reserved_sections(sbi);
sm_info->trim_sections = DEF_BATCHED_TRIM_SECTIONS;