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SubjectRe: [PATCH v2] VFS: Handle lazytime in do_mount()
On Tue, Sep 19, 2017 at 12:37:24PM +0200, Markus Trippelsdorf wrote:
> Since commit e462ec50cb5fa ("VFS: Differentiate mount flags (MS_*) from
> internal superblock flags") the lazytime mount option didn't get passed
> on anymore.
>
> Fix the issue by handling the option in do_mount().
>
> Signed-off-by: Markus Trippelsdorf <markus@trippelsdorf.de>
> ---
> fs/namespace.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/fs/namespace.c b/fs/namespace.c
> index 54059b142d6b..b633838b8f02 100644
> --- a/fs/namespace.c
> +++ b/fs/namespace.c
> @@ -2823,7 +2823,8 @@ long do_mount(const char *dev_name, const char __user *dir_name,
> SB_MANDLOCK |
> SB_DIRSYNC |
> SB_SILENT |
> - SB_POSIXACL);
> + SB_POSIXACL |
> + SB_LAZYTIME);

Looks good. Although I still think that this can be per mountpoint options.

Regardless of that, you can add
Reviewed-by: Lukas Czerner <lczerner@redhat.com>

>
> if (flags & MS_REMOUNT)
> retval = do_remount(&path, flags, sb_flags, mnt_flags,
> --
> Markus

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