f2fs: assign allocation hint for warm/cold data

This patch gives slower device region to warm/cold data area more eagerly.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index 74a10b7675f5ce9a150adddae9ad259fc797dc08..84db41ca27c12239fa5ab803ae74d4289ba7593c 100644 (file)
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -1033,4 +1033,9 @@ void build_gc_manager(struct f2fs_sb_info *sbi)
 
        sbi->fggc_threshold = div64_u64((main_count - ovp_count) *
                                BLKS_PER_SEC(sbi), (main_count - resv_count));
+
+       /* give warm/cold data area from slower device */
+       if (sbi->s_ndevs && sbi->segs_per_sec == 1)
+               SIT_I(sbi)->last_victim[ALLOC_NEXT] =
+                               GET_SEGNO(sbi, FDEV(0).end_blk) + 1;
 }