diff options
| author | Arnd Bergmann <arnd@arndb.de> | 2018-07-13 17:31:56 +0300 |
|---|---|---|
| committer | Richard Weinberger <richard@nod.at> | 2018-08-15 01:06:16 +0300 |
| commit | 6cff57320275b52d0a84b616602539c79e8d7117 (patch) | |
| tree | 66beabeb0cf9d2ddfea68d362d4eebd051cd3de7 | |
| parent | 0eca0b8067c4dfa405e38abb4c3a87b1df14513c (diff) | |
| download | linux-6cff57320275b52d0a84b616602539c79e8d7117.tar.xz | |
ubifs: tnc: use monotonic znode timestamp
The tnc uses get_seconds() based timestamps to check the age of a znode,
which has two problems: on 32-bit architectures this may overflow in
2038 or 2106, and it gives incorrect information when the system time
is updated using settimeofday().
Using montonic timestamps with ktime_get_seconds() solves both thes
problems.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Richard Weinberger <richard@nod.at>
| -rw-r--r-- | fs/ubifs/shrinker.c | 2 | ||||
| -rw-r--r-- | fs/ubifs/tnc.c | 4 | ||||
| -rw-r--r-- | fs/ubifs/tnc_misc.c | 2 | ||||
| -rw-r--r-- | fs/ubifs/ubifs.h | 2 |
4 files changed, 5 insertions, 5 deletions
diff --git a/fs/ubifs/shrinker.c b/fs/ubifs/shrinker.c index 9a9fb94a41c6..9d10cbdec2cc 100644 --- a/fs/ubifs/shrinker.c +++ b/fs/ubifs/shrinker.c @@ -71,7 +71,7 @@ static int shrink_tnc(struct ubifs_info *c, int nr, int age, int *contention) { int total_freed = 0; struct ubifs_znode *znode, *zprev; - int time = get_seconds(); + time64_t time = ktime_get_seconds(); ubifs_assert(mutex_is_locked(&c->umount_mutex)); ubifs_assert(mutex_is_locked(&c->tnc_mutex)); diff --git a/fs/ubifs/tnc.c b/fs/ubifs/tnc.c index 4a21e7f75e7a..6c497fb48b98 100644 --- a/fs/ubifs/tnc.c +++ b/fs/ubifs/tnc.c @@ -1179,7 +1179,7 @@ int ubifs_lookup_level0(struct ubifs_info *c, const union ubifs_key *key, { int err, exact; struct ubifs_znode *znode; - unsigned long time = get_seconds(); + time64_t time = ktime_get_seconds(); dbg_tnck(key, "search key "); ubifs_assert(key_type(c, key) < UBIFS_INVALID_KEY); @@ -1315,7 +1315,7 @@ static int lookup_level0_dirty(struct ubifs_info *c, const union ubifs_key *key, { int err, exact; struct ubifs_znode *znode; - unsigned long time = get_seconds(); + time64_t time = ktime_get_seconds(); dbg_tnck(key, "search and dirty key "); diff --git a/fs/ubifs/tnc_misc.c b/fs/ubifs/tnc_misc.c index 93f5b7859e6f..49f647bc88f0 100644 --- a/fs/ubifs/tnc_misc.c +++ b/fs/ubifs/tnc_misc.c @@ -435,7 +435,7 @@ struct ubifs_znode *ubifs_load_znode(struct ubifs_info *c, zbr->znode = znode; znode->parent = parent; - znode->time = get_seconds(); + znode->time = ktime_get_seconds(); znode->iip = iip; return znode; diff --git a/fs/ubifs/ubifs.h b/fs/ubifs/ubifs.h index 04bf84d71e7b..54fb6b1cd042 100644 --- a/fs/ubifs/ubifs.h +++ b/fs/ubifs/ubifs.h @@ -758,7 +758,7 @@ struct ubifs_znode { struct ubifs_znode *parent; struct ubifs_znode *cnext; unsigned long flags; - unsigned long time; + time64_t time; int level; int child_cnt; int iip; |