On Fri, Jul 16, 2021 at 2:41 AM Guoqing Jiang <guoqing.jiang@xxxxxxxxx> wrote:
>
>
>
> On 7/15/21 11:15 AM, Jia He wrote:
> > After the behavior of '%pD' is changed to print the full path of file,
> > the log printing can be simplified.
> >
> > Given the space with proper length would be allocated in vprintk_store(),
> > it is worthy of dropping kmalloc()/kfree() to avoid additional space
> > allocation. The error case is well handled in d_path_unsafe(), the error
> > string would be copied in '%pD' buffer, no need to additionally handle
> > IS_ERR().
> >
> > Cc: Song Liu <song@xxxxxxxxxx>
> > Cc: linux-raid@xxxxxxxxxxxxxxx
> > Cc: linux-kernel@xxxxxxxxxxxxxxx
> > Signed-off-by: Jia He <justin.he@xxxxxxx>
> > ---
> > drivers/md/md-bitmap.c | 13 ++-----------
> > 1 file changed, 2 insertions(+), 11 deletions(-)
> >
> > diff --git a/drivers/md/md-bitmap.c b/drivers/md/md-bitmap.c
> > index e29c6298ef5c..a82f1c2ef83c 100644
> > --- a/drivers/md/md-bitmap.c
> > +++ b/drivers/md/md-bitmap.c
> > @@ -862,21 +862,12 @@ static void md_bitmap_file_unmap(struct bitmap_storage *store)
> > */
> > static void md_bitmap_file_kick(struct bitmap *bitmap)
> > {
> > - char *path, *ptr = NULL;
> > -
> > if (!test_and_set_bit(BITMAP_STALE, &bitmap->flags)) {
> > md_bitmap_update_sb(bitmap);
> >
> > if (bitmap->storage.file) {
> > - path = kmalloc(PAGE_SIZE, GFP_KERNEL);
> > - if (path)
> > - ptr = file_path(bitmap->storage.file,
> > - path, PAGE_SIZE);
> > -
> > - pr_warn("%s: kicking failed bitmap file %s from array!\n",
> > - bmname(bitmap), IS_ERR(ptr) ? "" : ptr);
> > -
> > - kfree(path);
> > + pr_warn("%s: kicking failed bitmap file %pD from array!\n",
> > + bmname(bitmap), bitmap->storage.file);
This is neat!
Acked-by: Song Liu <song@xxxxxxxxxx>
> > } else
> > pr_warn("%s: disabling internal bitmap due to errors\n",
> > bmname(bitmap));
>
> Looks good, Acked-by: Guoqing Jiang <guoqing.jiang@xxxxxxxxx>
