diff options
| author | Jeff Layton <jlayton@kernel.org> | 2023-07-05 14:58:10 -0400 |
|---|---|---|
| committer | Christian Brauner <brauner@kernel.org> | 2023-07-10 10:08:03 +0200 |
| commit | 9b6304c1d53745c300b86f202d0dcff395e2d2db (patch) | |
| tree | f5be837e36a68df3b34c3f8f4d9f48e279f11d0e /fs/inode.c | |
| parent | bc2390f2c8843f342ba72bea0ee549b0d6976463 (diff) | |
fs: add ctime accessors infrastructure
struct timespec64 has unused bits in the tv_nsec field that can be used
for other purposes. In future patches, we're going to change how the
inode->i_ctime is accessed in certain inodes in order to make use of
them. In order to do that safely though, we'll need to eradicate raw
accesses of the inode->i_ctime field from the kernel.
Add new accessor functions for the ctime that we use to replace them.
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Message-Id: <20230705185812.579118-2-jlayton@kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Diffstat (limited to 'fs/inode.c')
| -rw-r--r-- | fs/inode.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/fs/inode.c b/fs/inode.c index 8fefb69e1f84..aac5cdcf5e89 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -2502,6 +2502,22 @@ struct timespec64 current_time(struct inode *inode) EXPORT_SYMBOL(current_time); /** + * inode_set_ctime_current - set the ctime to current_time + * @inode: inode + * + * Set the inode->i_ctime to the current value for the inode. Returns + * the current value that was assigned to i_ctime. + */ +struct timespec64 inode_set_ctime_current(struct inode *inode) +{ + struct timespec64 now = current_time(inode); + + inode_set_ctime(inode, now.tv_sec, now.tv_nsec); + return now; +} +EXPORT_SYMBOL(inode_set_ctime_current); + +/** * in_group_or_capable - check whether caller is CAP_FSETID privileged * @idmap: idmap of the mount @inode was found from * @inode: inode to check |