From: Chao Yu <[email protected]> This patch makes sure it returns a positive value instead of a probable casted negative value as shrink count.
Signed-off-by: Chao Yu <[email protected]> --- fs/f2fs/shrinker.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/fs/f2fs/shrinker.c b/fs/f2fs/shrinker.c index 8b0a112..e1220f2 100644 --- a/fs/f2fs/shrinker.c +++ b/fs/f2fs/shrinker.c @@ -21,14 +21,16 @@ static unsigned int shrinker_run_no; static unsigned long __count_nat_entries(struct f2fs_sb_info *sbi) { - return NM_I(sbi)->nat_cnt - NM_I(sbi)->dirty_nat_cnt; + long count = NM_I(sbi)->nat_cnt - NM_I(sbi)->dirty_nat_cnt; + + return count > 0 ? count : 0; } static unsigned long __count_free_nids(struct f2fs_sb_info *sbi) { - if (NM_I(sbi)->free_nid_cnt > MAX_FREE_NIDS) - return NM_I(sbi)->free_nid_cnt - MAX_FREE_NIDS; - return 0; + long count = NM_I(sbi)->free_nid_cnt - MAX_FREE_NIDS; + + return count > 0 ? count : 0; } static unsigned long __count_extent_cache(struct f2fs_sb_info *sbi) -- 2.10.1 ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot _______________________________________________ Linux-f2fs-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
