| Message ID | 20240224135256.830413-1-chengming.zhou@linux.dev |
|---|---|
| State | New |
| Headers | show |
| Series | usb: isp1760: remove SLAB_MEM_SPREAD flag usage | expand |
On 2024/2/24 21:52, chengming.zhou@linux.dev wrote: > From: Chengming Zhou <zhouchengming@bytedance.com> > > The SLAB_MEM_SPREAD flag is already a no-op as of 6.8-rc1, remove > its usage so we can delete it from slab. No functional change. Update changelog to make it clearer: The SLAB_MEM_SPREAD flag used to be implemented in SLAB, which was removed as of v6.8-rc1, so it became a dead flag since the commit 16a1d968358a ("mm/slab: remove mm/slab.c and slab_def.h"). And the series[1] went on to mark it obsolete to avoid confusion for users. Here we can just remove all its users, which has no functional change. [1] https://lore.kernel.org/all/20240223-slab-cleanup-flags-v2-1-02f1753e8303@suse.cz/ Thanks! > > Signed-off-by: Chengming Zhou <zhouchengming@bytedance.com> > --- > drivers/usb/isp1760/isp1760-hcd.c | 8 +++----- > 1 file changed, 3 insertions(+), 5 deletions(-) > > diff --git a/drivers/usb/isp1760/isp1760-hcd.c b/drivers/usb/isp1760/isp1760-hcd.c > index 76862ba40f35..0e5e4cb74c87 100644 > --- a/drivers/usb/isp1760/isp1760-hcd.c > +++ b/drivers/usb/isp1760/isp1760-hcd.c > @@ -2521,21 +2521,19 @@ static const struct hc_driver isp1760_hc_driver = { > int __init isp1760_init_kmem_once(void) > { > urb_listitem_cachep = kmem_cache_create("isp1760_urb_listitem", > - sizeof(struct urb_listitem), 0, SLAB_TEMPORARY | > - SLAB_MEM_SPREAD, NULL); > + sizeof(struct urb_listitem), 0, SLAB_TEMPORARY, NULL); > > if (!urb_listitem_cachep) > return -ENOMEM; > > qtd_cachep = kmem_cache_create("isp1760_qtd", > - sizeof(struct isp1760_qtd), 0, SLAB_TEMPORARY | > - SLAB_MEM_SPREAD, NULL); > + sizeof(struct isp1760_qtd), 0, SLAB_TEMPORARY, NULL); > > if (!qtd_cachep) > goto destroy_urb_listitem; > > qh_cachep = kmem_cache_create("isp1760_qh", sizeof(struct isp1760_qh), > - 0, SLAB_TEMPORARY | SLAB_MEM_SPREAD, NULL); > + 0, SLAB_TEMPORARY, NULL); > > if (!qh_cachep) > goto destroy_qtd;
Hey Zhou, many thanks for the patch. Chengming Zhou <chengming.zhou@linux.dev> writes: > On 2024/2/24 21:52, chengming.zhou@linux.dev wrote: >> From: Chengming Zhou <zhouchengming@bytedance.com> >> >> The SLAB_MEM_SPREAD flag is already a no-op as of 6.8-rc1, remove >> its usage so we can delete it from slab. No functional change. > > Update changelog to make it clearer: > > The SLAB_MEM_SPREAD flag used to be implemented in SLAB, which was > removed as of v6.8-rc1, so it became a dead flag since the commit > 16a1d968358a ("mm/slab: remove mm/slab.c and slab_def.h"). And the > series[1] went on to mark it obsolete to avoid confusion for users. > Here we can just remove all its users, which has no functional change. > > [1] https://lore.kernel.org/all/20240223-slab-cleanup-flags-v2-1-02f1753e8303@suse.cz/ With this changelog, you can add my tag: Acked-by: Rui Miguel Silva <rui.silva@linaro.org> Cheers, Rui > > Thanks! > >> >> Signed-off-by: Chengming Zhou <zhouchengming@bytedance.com> >> --- >> drivers/usb/isp1760/isp1760-hcd.c | 8 +++----- >> 1 file changed, 3 insertions(+), 5 deletions(-) >> >> diff --git a/drivers/usb/isp1760/isp1760-hcd.c b/drivers/usb/isp1760/isp1760-hcd.c >> index 76862ba40f35..0e5e4cb74c87 100644 >> --- a/drivers/usb/isp1760/isp1760-hcd.c >> +++ b/drivers/usb/isp1760/isp1760-hcd.c >> @@ -2521,21 +2521,19 @@ static const struct hc_driver isp1760_hc_driver = { >> int __init isp1760_init_kmem_once(void) >> { >> urb_listitem_cachep = kmem_cache_create("isp1760_urb_listitem", >> - sizeof(struct urb_listitem), 0, SLAB_TEMPORARY | >> - SLAB_MEM_SPREAD, NULL); >> + sizeof(struct urb_listitem), 0, SLAB_TEMPORARY, NULL); >> >> if (!urb_listitem_cachep) >> return -ENOMEM; >> >> qtd_cachep = kmem_cache_create("isp1760_qtd", >> - sizeof(struct isp1760_qtd), 0, SLAB_TEMPORARY | >> - SLAB_MEM_SPREAD, NULL); >> + sizeof(struct isp1760_qtd), 0, SLAB_TEMPORARY, NULL); >> >> if (!qtd_cachep) >> goto destroy_urb_listitem; >> >> qh_cachep = kmem_cache_create("isp1760_qh", sizeof(struct isp1760_qh), >> - 0, SLAB_TEMPORARY | SLAB_MEM_SPREAD, NULL); >> + 0, SLAB_TEMPORARY, NULL); >> >> if (!qh_cachep) >> goto destroy_qtd;
On Mon, Feb 26, 2024 at 11:02:24AM +0800, Chengming Zhou wrote: > On 2024/2/24 21:52, chengming.zhou@linux.dev wrote: > > From: Chengming Zhou <zhouchengming@bytedance.com> > > > > The SLAB_MEM_SPREAD flag is already a no-op as of 6.8-rc1, remove > > its usage so we can delete it from slab. No functional change. > > Update changelog to make it clearer: > > The SLAB_MEM_SPREAD flag used to be implemented in SLAB, which was > removed as of v6.8-rc1, so it became a dead flag since the commit > 16a1d968358a ("mm/slab: remove mm/slab.c and slab_def.h"). And the > series[1] went on to mark it obsolete to avoid confusion for users. > Here we can just remove all its users, which has no functional change. Please submit a version 2 with this updated changelog. thanks, greg k-h
diff --git a/drivers/usb/isp1760/isp1760-hcd.c b/drivers/usb/isp1760/isp1760-hcd.c index 76862ba40f35..0e5e4cb74c87 100644 --- a/drivers/usb/isp1760/isp1760-hcd.c +++ b/drivers/usb/isp1760/isp1760-hcd.c @@ -2521,21 +2521,19 @@ static const struct hc_driver isp1760_hc_driver = { int __init isp1760_init_kmem_once(void) { urb_listitem_cachep = kmem_cache_create("isp1760_urb_listitem", - sizeof(struct urb_listitem), 0, SLAB_TEMPORARY | - SLAB_MEM_SPREAD, NULL); + sizeof(struct urb_listitem), 0, SLAB_TEMPORARY, NULL); if (!urb_listitem_cachep) return -ENOMEM; qtd_cachep = kmem_cache_create("isp1760_qtd", - sizeof(struct isp1760_qtd), 0, SLAB_TEMPORARY | - SLAB_MEM_SPREAD, NULL); + sizeof(struct isp1760_qtd), 0, SLAB_TEMPORARY, NULL); if (!qtd_cachep) goto destroy_urb_listitem; qh_cachep = kmem_cache_create("isp1760_qh", sizeof(struct isp1760_qh), - 0, SLAB_TEMPORARY | SLAB_MEM_SPREAD, NULL); + 0, SLAB_TEMPORARY, NULL); if (!qh_cachep) goto destroy_qtd;