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overlayfs: convert to ctime accessor functions

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In later patches, we're going to change how the inode's ctime field is
used. Switch to using accessor functions instead of raw accesses of
inode->i_ctime.

Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: Jan Kara <jack@suse.cz>
Message-Id: <20230705190309.579783-64-jlayton@kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
Jeff Layton 2023-07-05 15:01:31 -04:00 committed by Christian Brauner
parent 0971a799b1
commit 9aa7111523
2 changed files with 6 additions and 3 deletions
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7
fs/overlayfs/file.c
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@ -239,6 +239,7 @@ static loff_t ovl_llseek(struct file *file, loff_t offset, int whence)
static void ovl_file_accessed(struct file *file)
{
struct inode *inode, *upperinode;
struct timespec64 ctime, uctime;
if (file->f_flags & O_NOATIME)
return;
@ -249,10 +250,12 @@ static void ovl_file_accessed(struct file *file)
if (!upperinode)
return;
ctime = inode_get_ctime(inode);
uctime = inode_get_ctime(upperinode);
if ((!timespec64_equal(&inode->i_mtime, &upperinode->i_mtime) ||
!timespec64_equal(&inode->i_ctime, &upperinode->i_ctime))) {
!timespec64_equal(&ctime, &uctime))) {
inode->i_mtime = upperinode->i_mtime;
inode->i_ctime = upperinode->i_ctime;
inode_set_ctime_to_ts(inode, uctime);
}
touch_atime(&file->f_path);

2
fs/overlayfs/util.c
View File

@ -1202,6 +1202,6 @@ void ovl_copyattr(struct inode *inode)
inode->i_mode = realinode->i_mode;
inode->i_atime = realinode->i_atime;
inode->i_mtime = realinode->i_mtime;
inode->i_ctime = realinode->i_ctime;
inode_set_ctime_to_ts(inode, inode_get_ctime(realinode));
i_size_write(inode, i_size_read(realinode));
}