Commit cdb70f3f authored by Dave Hansen's avatar Dave Hansen Committed by Al Viro

[PATCH] r/o bind mounts: write counts for touch_atime()

Remove handling of NULL mnt while we are at it - that can't happen these days.
Acked-by: default avatarAl Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarDave Hansen <haveblue@us.ibm.com>
Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent a761a1c0
......@@ -1199,42 +1199,37 @@ void touch_atime(struct vfsmount *mnt, struct dentry *dentry)
struct inode *inode = dentry->d_inode;
struct timespec now;
if (inode->i_flags & S_NOATIME)
if (mnt_want_write(mnt))
return;
if (inode->i_flags & S_NOATIME)
goto out;
if (IS_NOATIME(inode))
return;
goto out;
if ((inode->i_sb->s_flags & MS_NODIRATIME) && S_ISDIR(inode->i_mode))
return;
/*
* We may have a NULL vfsmount when coming from NFSD
*/
if (mnt) {
if (mnt->mnt_flags & MNT_NOATIME)
return;
if ((mnt->mnt_flags & MNT_NODIRATIME) && S_ISDIR(inode->i_mode))
return;
goto out;
if (mnt->mnt_flags & MNT_RELATIME) {
/*
* With relative atime, only update atime if the
* previous atime is earlier than either the ctime or
* mtime.
*/
if (timespec_compare(&inode->i_mtime,
&inode->i_atime) < 0 &&
timespec_compare(&inode->i_ctime,
&inode->i_atime) < 0)
return;
}
if (mnt->mnt_flags & MNT_NOATIME)
goto out;
if ((mnt->mnt_flags & MNT_NODIRATIME) && S_ISDIR(inode->i_mode))
goto out;
if (mnt->mnt_flags & MNT_RELATIME) {
/*
* With relative atime, only update atime if the previous
* atime is earlier than either the ctime or mtime.
*/
if (timespec_compare(&inode->i_mtime, &inode->i_atime) < 0 &&
timespec_compare(&inode->i_ctime, &inode->i_atime) < 0)
goto out;
}
now = current_fs_time(inode->i_sb);
if (timespec_equal(&inode->i_atime, &now))
return;
goto out;
inode->i_atime = now;
mark_inode_dirty_sync(inode);
out:
mnt_drop_write(mnt);
}
EXPORT_SYMBOL(touch_atime);
......
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