linux-kernel - [PATCH v2 02/11] fs: uninline inode_get_ctime and inode_set_ctime_to

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Message-Id: <20240701-mgtime-v2-2-19d412a940d9@kernel.org>
Date: Mon, 01 Jul 2024 06:26:38 -0400
From: Jeff Layton <jlayton@...nel.org>
To: Alexander Viro <viro@...iv.linux.org.uk>, 
 Christian Brauner <brauner@...nel.org>, Jan Kara <jack@...e.cz>, 
 Steven Rostedt <rostedt@...dmis.org>, 
 Masami Hiramatsu <mhiramat@...nel.org>, 
 Mathieu Desnoyers <mathieu.desnoyers@...icios.com>, 
 Chandan Babu R <chandan.babu@...cle.com>, 
 "Darrick J. Wong" <djwong@...nel.org>, Theodore Ts'o <tytso@....edu>, 
 Andreas Dilger <adilger.kernel@...ger.ca>, Chris Mason <clm@...com>, 
 Josef Bacik <josef@...icpanda.com>, David Sterba <dsterba@...e.com>, 
 Hugh Dickins <hughd@...gle.com>, Andrew Morton <akpm@...ux-foundation.org>
Cc: Andi Kleen <ak@...ux.intel.com>, kernel-team@...com, 
 linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-trace-kernel@...r.kernel.org, linux-xfs@...r.kernel.org, 
 linux-ext4@...r.kernel.org, linux-btrfs@...r.kernel.org, linux-mm@...ck.org, 
 linux-nfs@...r.kernel.org, Jeff Layton <jlayton@...nel.org>
Subject: [PATCH v2 02/11] fs: uninline inode_get_ctime and
 inode_set_ctime_to_ts

Move both functions to fs/inode.c as they have grown a little large for
inlining.

Signed-off-by: Jeff Layton <jlayton@...nel.org>
---
 fs/inode.c         | 25 +++++++++++++++++++++++++
 include/linux/fs.h | 13 ++-----------
 2 files changed, 27 insertions(+), 11 deletions(-)

diff --git a/fs/inode.c b/fs/inode.c
index e0815acc5abb..7b0a73ed499d 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -2501,6 +2501,31 @@ struct timespec64 current_time(struct inode *inode)
 }
 EXPORT_SYMBOL(current_time);

+/**
+ * inode_get_ctime - fetch the current ctime from the inode
+ * @inode: inode from which to fetch ctime
+ *
+ * Grab the current ctime tv_nsec field from the inode, mask off the
+ * I_CTIME_QUERIED flag and return it. This is mostly intended for use by
+ * internal consumers of the ctime that aren't concerned with ensuring a
+ * fine-grained update on the next change (e.g. when preparing to store
+ * the value in the backing store for later retrieval).
+ */
+struct timespec64 inode_get_ctime(const struct inode *inode)
+{
+	ktime_t ctime = inode->__i_ctime;
+
+	return ktime_to_timespec64(ctime);
+}
+EXPORT_SYMBOL(inode_get_ctime);
+
+struct timespec64 inode_set_ctime_to_ts(struct inode *inode, struct timespec64 ts)
+{
+	inode->__i_ctime = ktime_set(ts.tv_sec, ts.tv_nsec);
+	return ts;
+}
+EXPORT_SYMBOL(inode_set_ctime_to_ts);
+
 /**
  * inode_set_ctime_current - set the ctime to current_time
  * @inode: inode
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 7110d6dc9aab..8e271c9e4a00 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1608,10 +1608,8 @@ static inline struct timespec64 inode_set_mtime(struct inode *inode,
 	return inode_set_mtime_to_ts(inode, ts);
 }

-static inline struct timespec64 inode_get_ctime(const struct inode *inode)
-{
-	return ktime_to_timespec64(inode->__i_ctime);
-}
+struct timespec64 inode_get_ctime(const struct inode *inode);
+struct timespec64 inode_set_ctime_to_ts(struct inode *inode, struct timespec64 ts);

 static inline time64_t inode_get_ctime_sec(const struct inode *inode)
 {
@@ -1623,13 +1621,6 @@ static inline long inode_get_ctime_nsec(const struct inode *inode)
 	return inode_get_ctime(inode).tv_nsec;
 }

-static inline struct timespec64 inode_set_ctime_to_ts(struct inode *inode,
-						      struct timespec64 ts)
-{
-	inode->__i_ctime = ktime_set(ts.tv_sec, ts.tv_nsec);
-	return ts;
-}
-
 /**
  * inode_set_ctime - set the ctime in the inode
  * @inode: inode in which to set the ctime

-- 
2.45.2