fs: ubifs: Eliminate timespec64_trunc() usage

DEFAULT_TIME_GRAN is seconds granularity. We can
just drop the nsec while creating the default root node.
Delete the unneeded call to timespec64_trunc().

Also update the ktime_get_* api to match the one used in
current_time(). This allows for the timestamps to be updated
by using the same ktime_get_* api always.

Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Cc: richard@nod.at
Cc: linux-mtd@lists.infradead.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --git a/fs/ubifs/sb.c b/fs/ubifs/sb.c
index 2b7c04b..93d550b 100644 (file)
--- a/fs/ubifs/sb.c
+++ b/fs/ubifs/sb.c
@@ -84,7 +84,6 @@ static int create_default_filesystem(struct ubifs_info *c)
        int idx_node_size;
        long long tmp64, main_bytes;
        __le64 tmp_le64;
-       __le32 tmp_le32;
        struct timespec64 ts;
        u8 hash[UBIFS_HASH_ARR_SZ];
        u8 hash_lpt[UBIFS_HASH_ARR_SZ];
@@ -291,16 +290,14 @@ static int create_default_filesystem(struct ubifs_info *c)
        ino->creat_sqnum = cpu_to_le64(++c->max_sqnum);
        ino->nlink = cpu_to_le32(2);
 
-       ktime_get_real_ts64(&ts);
-       ts = timespec64_trunc(ts, DEFAULT_TIME_GRAN);
+       ktime_get_coarse_real_ts64(&ts);
        tmp_le64 = cpu_to_le64(ts.tv_sec);
        ino->atime_sec   = tmp_le64;
        ino->ctime_sec   = tmp_le64;
        ino->mtime_sec   = tmp_le64;
-       tmp_le32 = cpu_to_le32(ts.tv_nsec);
-       ino->atime_nsec  = tmp_le32;
-       ino->ctime_nsec  = tmp_le32;
-       ino->mtime_nsec  = tmp_le32;
+       ino->atime_nsec  = 0;
+       ino->ctime_nsec  = 0;
+       ino->mtime_nsec  = 0;
        ino->mode = cpu_to_le32(S_IFDIR | S_IRUGO | S_IWUSR | S_IXUGO);
        ino->size = cpu_to_le64(UBIFS_INO_NODE_SZ);