fs: f2fs: use ktime_get_real_seconds for sit_info times (48fbfe50) · Commits · 戴 / test

CURRENT_TIME_SEC is not y2038 safe. Replace use of CURRENT_TIME_SEC with ktime_get_real_seconds in segment timestamps used by GC algorithm including the segment mtime timestamps. Link: http://lkml.kernel.org/r/1491613030-11599-2-git-send-email-deepa.kernel@gmail.com Signed-off-by:

Arnd Bergmann <arnd@arndb.de> Cc: Jaegeuk Kim <jaegeuk@kernel.org> Cc: Chao Yu <yuchao0@huawei.com> Signed-off-by:

fs/f2fs/segment.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -2573,7 +2573,7 @@ static int build_sit_info(struct f2fs_sb_info *sbi)
		sit_i->dirty_sentries = 0;
		sit_i->sents_per_block = SIT_ENTRY_PER_BLOCK;
		sit_i->elapsed_time = le64_to_cpu(sbi->ckpt->elapsed_time);
		sit_i->mounted_time = CURRENT_TIME_SEC.tv_sec;
		sit_i->mounted_time = ktime_get_real_seconds();
		mutex_init(&sit_i->sentry_lock);
		return 0;
		}

+3 −2

Original line number	Diff line number	Diff line
		@@ -691,8 +691,9 @@ static inline void set_to_next_sit(struct sit_info *sit_i, unsigned int start)
		static inline unsigned long long get_mtime(struct f2fs_sb_info *sbi)
		{
		struct sit_info *sit_i = SIT_I(sbi);
		return sit_i->elapsed_time + CURRENT_TIME_SEC.tv_sec -
		sit_i->mounted_time;
		time64_t now = ktime_get_real_seconds();

		return sit_i->elapsed_time + now - sit_i->mounted_time;
		}

		static inline void set_summary(struct f2fs_summary *sum, nid_t nid,