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From: Deepa Dinamani <deepa.kernel@gmail.com>
To: viro@zeniv.linux.org.uk, linux-kernel@vger.kernel.org
Cc: linux-fsdevel@vger.kernel.org, arnd@arndb.de, richard@nod.at,
	linux-mtd@lists.infradead.org
Subject: [PATCH 5/7] fs: ubifs: Eliminate timespec64_trunc() usage
Date: Fri, 29 Nov 2019 21:30:28 -0800	[thread overview]
Message-ID: <20191130053030.7868-6-deepa.kernel@gmail.com> (raw)
In-Reply-To: <20191130053030.7868-1-deepa.kernel@gmail.com>

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
---
 fs/ubifs/sb.c | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/fs/ubifs/sb.c b/fs/ubifs/sb.c
index 2b7c04bf8983..93d550be4c11 100644
--- 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);
 
-- 
2.17.1


WARNING: multiple messages have this Message-ID (diff)
From: Deepa Dinamani <deepa.kernel@gmail.com>
To: viro@zeniv.linux.org.uk, linux-kernel@vger.kernel.org
Cc: linux-fsdevel@vger.kernel.org, richard@nod.at,
	linux-mtd@lists.infradead.org, arnd@arndb.de
Subject: [PATCH 5/7] fs: ubifs: Eliminate timespec64_trunc() usage
Date: Fri, 29 Nov 2019 21:30:28 -0800	[thread overview]
Message-ID: <20191130053030.7868-6-deepa.kernel@gmail.com> (raw)
In-Reply-To: <20191130053030.7868-1-deepa.kernel@gmail.com>

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
---
 fs/ubifs/sb.c | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/fs/ubifs/sb.c b/fs/ubifs/sb.c
index 2b7c04bf8983..93d550be4c11 100644
--- 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);
 
-- 
2.17.1


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  parent reply	other threads:[~2019-11-30  5:31 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-30  5:30 [PATCH 0/7] Delete timespec64_trunc() Deepa Dinamani
2019-11-30  5:30 ` Deepa Dinamani
2019-11-30  5:30 ` [PATCH 1/7] fs: fat: Eliminate timespec64_trunc() usage Deepa Dinamani
2019-11-30  5:30 ` [PATCH 2/7] fs: cifs: Fix atime update check vs mtime Deepa Dinamani
2019-12-01 18:23   ` Steve French
2019-11-30  5:30 ` [PATCH 3/7] fs: cifs: Delete usage of timespec64_trunc Deepa Dinamani
2019-11-30 21:25   ` Steve French
2019-12-01  5:35     ` Deepa Dinamani
2019-11-30  5:30 ` [PATCH 4/7] fs: ceph: Delete timespec64_trunc() usage Deepa Dinamani
2019-11-30  5:30 ` Deepa Dinamani [this message]
2019-11-30  5:30   ` [PATCH 5/7] fs: ubifs: Eliminate " Deepa Dinamani
2019-11-30  5:30 ` [PATCH 6/7] fs: Delete timespec64_trunc() Deepa Dinamani
2019-11-30  5:30 ` [PATCH 7/7] fs: Do not overload update_time Deepa Dinamani
2019-12-01 20:51   ` Dave Chinner
2019-12-02 17:48   ` Christoph Hellwig
2019-12-02 23:13     ` Deepa Dinamani

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