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authorDeepa Dinamani <deepa.kernel@gmail.com>2017-05-08 15:59:10 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2017-05-08 17:15:15 -0700
commit48fbfe50f1d5fef51bac98d105d2a28df42a1205 (patch)
tree9717ff08a30f206b190e197995ec889dbcd06cfa /fs/f2fs
parent063246641d4a9e9de84a2466fbad50112faf88dc (diff)
downloadlinux-48fbfe50f1d5fef51bac98d105d2a28df42a1205.tar.bz2
fs: f2fs: use ktime_get_real_seconds for sit_info times
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: Deepa Dinamani <deepa.kernel@gmail.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Cc: Jaegeuk Kim <jaegeuk@kernel.org> Cc: Chao Yu <yuchao0@huawei.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/f2fs')
-rw-r--r--fs/f2fs/segment.c2
-rw-r--r--fs/f2fs/segment.h5
2 files changed, 4 insertions, 3 deletions
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 13806f642ab5..87c962705550 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -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;
}
diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h
index 5e8ad4280a50..313b99040aa6 100644
--- a/fs/f2fs/segment.h
+++ b/fs/f2fs/segment.h
@@ -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,