From: Jan Kara <jack@suse.cz> To: Dan Williams <dan.j.williams@intel.com> Cc: Jan Kara <jack@suse.cz>, Matthew Wilcox <mawilcox@microsoft.com>, x86@kernel.org, linux-kernel@vger.kernel.org, linux-nvdimm@lists.01.org, dm-devel@redhat.com, Ingo Molnar <mingo@redhat.com>, viro@zeniv.linux.org.uk, "H. Peter Anvin" <hpa@zytor.com>, linux-fsdevel@vger.kernel.org, Thomas Gleixner <tglx@linutronix.de>, hch@lst.de Subject: Re: [PATCH v3 09/14] x86, libnvdimm, pmem: move arch_invalidate_pmem() to libnvdimm Date: Wed, 14 Jun 2017 12:49:12 +0200 [thread overview] Message-ID: <20170614104912.GC21506@quack2.suse.cz> (raw) In-Reply-To: <149703987543.20620.15705330305343743783.stgit@dwillia2-desk3.amr.corp.intel.com> On Fri 09-06-17 13:24:35, Dan Williams wrote: > Kill this globally defined wrapper and move to libnvdimm so that we can > ultimately remove include/linux/pmem.h. > > Cc: <x86@kernel.org> > Cc: Jan Kara <jack@suse.cz> > Cc: Jeff Moyer <jmoyer@redhat.com> > Cc: Ingo Molnar <mingo@redhat.com> > Cc: Christoph Hellwig <hch@lst.de> > Cc: "H. Peter Anvin" <hpa@zytor.com> > Cc: Thomas Gleixner <tglx@linutronix.de> > Cc: Matthew Wilcox <mawilcox@microsoft.com> > Cc: Ross Zwisler <ross.zwisler@linux.intel.com> > Signed-off-by: Dan Williams <dan.j.williams@intel.com> Looks good to me. You can add: Reviewed-by: Jan Kara <jack@suse.cz> Honza > --- > drivers/nvdimm/claim.c | 3 ++- > drivers/nvdimm/pmem.c | 2 +- > drivers/nvdimm/pmem.h | 3 +++ > include/linux/pmem.h | 19 ------------------- > 4 files changed, 6 insertions(+), 21 deletions(-) > > diff --git a/drivers/nvdimm/claim.c b/drivers/nvdimm/claim.c > index b8b9c8ca7862..d2e16c0401df 100644 > --- a/drivers/nvdimm/claim.c > +++ b/drivers/nvdimm/claim.c > @@ -14,6 +14,7 @@ > #include <linux/sizes.h> > #include <linux/pmem.h> > #include "nd-core.h" > +#include "pmem.h" > #include "pfn.h" > #include "btt.h" > #include "nd.h" > @@ -272,7 +273,7 @@ static int nsio_rw_bytes(struct nd_namespace_common *ndns, > cleared /= 512; > badblocks_clear(&nsio->bb, sector, cleared); > } > - invalidate_pmem(nsio->addr + offset, size); > + arch_invalidate_pmem(nsio->addr + offset, size); > } else > rc = -EIO; > } > diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c > index 3b87702d46bb..68737bc68a07 100644 > --- a/drivers/nvdimm/pmem.c > +++ b/drivers/nvdimm/pmem.c > @@ -71,7 +71,7 @@ static int pmem_clear_poison(struct pmem_device *pmem, phys_addr_t offset, > badblocks_clear(&pmem->bb, sector, cleared); > } > > - invalidate_pmem(pmem->virt_addr + offset, len); > + arch_invalidate_pmem(pmem->virt_addr + offset, len); > > return rc; > } > diff --git a/drivers/nvdimm/pmem.h b/drivers/nvdimm/pmem.h > index 9137ec80b85f..d579c7095a45 100644 > --- a/drivers/nvdimm/pmem.h > +++ b/drivers/nvdimm/pmem.h > @@ -10,6 +10,9 @@ > static inline void arch_wb_cache_pmem(void *addr, size_t size) > { > } > +static inline void arch_invalidate_pmem(void *addr, size_t size) > +{ > +} > #endif > > /* this definition is in it's own header for tools/testing/nvdimm to consume */ > diff --git a/include/linux/pmem.h b/include/linux/pmem.h > index 33ae761f010a..559c00848583 100644 > --- a/include/linux/pmem.h > +++ b/include/linux/pmem.h > @@ -30,11 +30,6 @@ static inline void arch_memcpy_to_pmem(void *dst, const void *src, size_t n) > { > BUG(); > } > - > -static inline void arch_invalidate_pmem(void *addr, size_t size) > -{ > - BUG(); > -} > #endif > > static inline bool arch_has_pmem_api(void) > @@ -61,18 +56,4 @@ static inline void memcpy_to_pmem(void *dst, const void *src, size_t n) > else > memcpy(dst, src, n); > } > - > -/** > - * invalidate_pmem - flush a pmem range from the cache hierarchy > - * @addr: virtual start address > - * @size: bytes to invalidate (internally aligned to cache line size) > - * > - * For platforms that support clearing poison this flushes any poisoned > - * ranges out of the cache > - */ > -static inline void invalidate_pmem(void *addr, size_t size) > -{ > - if (arch_has_pmem_api()) > - arch_invalidate_pmem(addr, size); > -} > #endif /* __PMEM_H__ */ > -- Jan Kara <jack@suse.com> SUSE Labs, CR _______________________________________________ Linux-nvdimm mailing list Linux-nvdimm@lists.01.org https://lists.01.org/mailman/listinfo/linux-nvdimm
WARNING: multiple messages have this Message-ID (diff)
From: Jan Kara <jack@suse.cz> To: Dan Williams <dan.j.williams@intel.com> Cc: linux-nvdimm@lists.01.org, Jan Kara <jack@suse.cz>, dm-devel@redhat.com, Matthew Wilcox <mawilcox@microsoft.com>, x86@kernel.org, linux-kernel@vger.kernel.org, hch@lst.de, Jeff Moyer <jmoyer@redhat.com>, Ingo Molnar <mingo@redhat.com>, viro@zeniv.linux.org.uk, "H. Peter Anvin" <hpa@zytor.com>, linux-fsdevel@vger.kernel.org, Thomas Gleixner <tglx@linutronix.de>, Ross Zwisler <ross.zwisler@linux.intel.com> Subject: Re: [PATCH v3 09/14] x86, libnvdimm, pmem: move arch_invalidate_pmem() to libnvdimm Date: Wed, 14 Jun 2017 12:49:12 +0200 [thread overview] Message-ID: <20170614104912.GC21506@quack2.suse.cz> (raw) In-Reply-To: <149703987543.20620.15705330305343743783.stgit@dwillia2-desk3.amr.corp.intel.com> On Fri 09-06-17 13:24:35, Dan Williams wrote: > Kill this globally defined wrapper and move to libnvdimm so that we can > ultimately remove include/linux/pmem.h. > > Cc: <x86@kernel.org> > Cc: Jan Kara <jack@suse.cz> > Cc: Jeff Moyer <jmoyer@redhat.com> > Cc: Ingo Molnar <mingo@redhat.com> > Cc: Christoph Hellwig <hch@lst.de> > Cc: "H. Peter Anvin" <hpa@zytor.com> > Cc: Thomas Gleixner <tglx@linutronix.de> > Cc: Matthew Wilcox <mawilcox@microsoft.com> > Cc: Ross Zwisler <ross.zwisler@linux.intel.com> > Signed-off-by: Dan Williams <dan.j.williams@intel.com> Looks good to me. You can add: Reviewed-by: Jan Kara <jack@suse.cz> Honza > --- > drivers/nvdimm/claim.c | 3 ++- > drivers/nvdimm/pmem.c | 2 +- > drivers/nvdimm/pmem.h | 3 +++ > include/linux/pmem.h | 19 ------------------- > 4 files changed, 6 insertions(+), 21 deletions(-) > > diff --git a/drivers/nvdimm/claim.c b/drivers/nvdimm/claim.c > index b8b9c8ca7862..d2e16c0401df 100644 > --- a/drivers/nvdimm/claim.c > +++ b/drivers/nvdimm/claim.c > @@ -14,6 +14,7 @@ > #include <linux/sizes.h> > #include <linux/pmem.h> > #include "nd-core.h" > +#include "pmem.h" > #include "pfn.h" > #include "btt.h" > #include "nd.h" > @@ -272,7 +273,7 @@ static int nsio_rw_bytes(struct nd_namespace_common *ndns, > cleared /= 512; > badblocks_clear(&nsio->bb, sector, cleared); > } > - invalidate_pmem(nsio->addr + offset, size); > + arch_invalidate_pmem(nsio->addr + offset, size); > } else > rc = -EIO; > } > diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c > index 3b87702d46bb..68737bc68a07 100644 > --- a/drivers/nvdimm/pmem.c > +++ b/drivers/nvdimm/pmem.c > @@ -71,7 +71,7 @@ static int pmem_clear_poison(struct pmem_device *pmem, phys_addr_t offset, > badblocks_clear(&pmem->bb, sector, cleared); > } > > - invalidate_pmem(pmem->virt_addr + offset, len); > + arch_invalidate_pmem(pmem->virt_addr + offset, len); > > return rc; > } > diff --git a/drivers/nvdimm/pmem.h b/drivers/nvdimm/pmem.h > index 9137ec80b85f..d579c7095a45 100644 > --- a/drivers/nvdimm/pmem.h > +++ b/drivers/nvdimm/pmem.h > @@ -10,6 +10,9 @@ > static inline void arch_wb_cache_pmem(void *addr, size_t size) > { > } > +static inline void arch_invalidate_pmem(void *addr, size_t size) > +{ > +} > #endif > > /* this definition is in it's own header for tools/testing/nvdimm to consume */ > diff --git a/include/linux/pmem.h b/include/linux/pmem.h > index 33ae761f010a..559c00848583 100644 > --- a/include/linux/pmem.h > +++ b/include/linux/pmem.h > @@ -30,11 +30,6 @@ static inline void arch_memcpy_to_pmem(void *dst, const void *src, size_t n) > { > BUG(); > } > - > -static inline void arch_invalidate_pmem(void *addr, size_t size) > -{ > - BUG(); > -} > #endif > > static inline bool arch_has_pmem_api(void) > @@ -61,18 +56,4 @@ static inline void memcpy_to_pmem(void *dst, const void *src, size_t n) > else > memcpy(dst, src, n); > } > - > -/** > - * invalidate_pmem - flush a pmem range from the cache hierarchy > - * @addr: virtual start address > - * @size: bytes to invalidate (internally aligned to cache line size) > - * > - * For platforms that support clearing poison this flushes any poisoned > - * ranges out of the cache > - */ > -static inline void invalidate_pmem(void *addr, size_t size) > -{ > - if (arch_has_pmem_api()) > - arch_invalidate_pmem(addr, size); > -} > #endif /* __PMEM_H__ */ > -- Jan Kara <jack@suse.com> SUSE Labs, CR
next prev parent reply other threads:[~2017-06-14 10:47 UTC|newest] Thread overview: 117+ messages / expand[flat|nested] mbox.gz Atom feed top 2017-06-09 20:23 [PATCH v3 00/14] pmem: stop abusing __copy_user_nocache(), and other reworks Dan Williams 2017-06-09 20:23 ` Dan Williams 2017-06-09 20:23 ` Dan Williams 2017-06-09 20:23 ` [PATCH v3 01/14] x86, uaccess: introduce copy_from_iter_flushcache for pmem / cache-bypass operations Dan Williams 2017-06-09 20:23 ` Dan Williams 2017-06-09 20:23 ` Dan Williams 2017-06-18 8:28 ` Christoph Hellwig 2017-06-18 8:28 ` Christoph Hellwig 2017-06-18 8:28 ` Christoph Hellwig 2017-06-19 2:02 ` Dan Williams 2017-06-19 2:02 ` Dan Williams 2017-06-19 2:02 ` Dan Williams 2017-06-09 20:23 ` [PATCH v3 02/14] dm: add ->copy_from_iter() dax operation support Dan Williams 2017-06-09 20:23 ` Dan Williams 2017-06-09 20:23 ` Dan Williams 2017-06-15 0:46 ` Kani, Toshimitsu 2017-06-15 0:46 ` Kani, Toshimitsu 2017-06-15 0:46 ` Kani, Toshimitsu 2017-06-15 1:21 ` Kani, Toshimitsu 2017-06-15 1:21 ` Kani, Toshimitsu 2017-06-18 8:37 ` Christoph Hellwig 2017-06-18 8:37 ` Christoph Hellwig 2017-06-18 8:37 ` Christoph Hellwig 2017-06-19 2:04 ` Dan Williams 2017-06-19 2:04 ` Dan Williams 2017-06-19 2:04 ` Dan Williams 2017-06-09 20:24 ` [PATCH v3 03/14] filesystem-dax: convert to dax_copy_from_iter() Dan Williams 2017-06-09 20:24 ` Dan Williams 2017-06-09 20:24 ` Dan Williams 2017-06-14 10:58 ` Jan Kara 2017-06-14 10:58 ` Jan Kara 2017-06-14 10:58 ` Jan Kara 2017-06-09 20:24 ` [PATCH v3 04/14] dax, pmem: introduce an optional 'flush' dax_operation Dan Williams 2017-06-09 20:24 ` Dan Williams 2017-06-09 20:24 ` Dan Williams 2017-06-14 10:57 ` Jan Kara 2017-06-14 10:57 ` Jan Kara 2017-06-14 10:57 ` Jan Kara 2017-06-09 20:24 ` [PATCH v3 05/14] dm: add ->flush() dax operation support Dan Williams 2017-06-09 20:24 ` Dan Williams 2017-06-09 20:24 ` Dan Williams 2017-06-15 1:44 ` Kani, Toshimitsu 2017-06-15 1:44 ` Kani, Toshimitsu 2017-06-15 1:44 ` Kani, Toshimitsu 2017-06-09 20:24 ` [PATCH v3 06/14] filesystem-dax: convert to dax_flush() Dan Williams 2017-06-09 20:24 ` Dan Williams 2017-06-09 20:24 ` Dan Williams 2017-06-14 10:56 ` Jan Kara 2017-06-14 10:56 ` Jan Kara 2017-06-14 10:56 ` Jan Kara 2017-06-09 20:24 ` [PATCH v3 07/14] x86, dax: replace clear_pmem() with open coded memset + dax_ops->flush Dan Williams 2017-06-09 20:24 ` Dan Williams 2017-06-09 20:24 ` Dan Williams 2017-06-14 10:55 ` Jan Kara 2017-06-14 10:55 ` Jan Kara 2017-06-14 10:55 ` Jan Kara 2017-06-09 20:24 ` [PATCH v3 08/14] x86, dax, libnvdimm: move wb_cache_pmem() to libnvdimm Dan Williams 2017-06-09 20:24 ` Dan Williams 2017-06-09 20:24 ` Dan Williams 2017-06-12 0:29 ` [PATCH v4 " Dan Williams 2017-06-12 0:29 ` Dan Williams 2017-06-14 10:54 ` [PATCH v3 " Jan Kara 2017-06-14 10:54 ` Jan Kara 2017-06-14 16:49 ` Dan Williams 2017-06-14 16:49 ` Dan Williams 2017-06-14 16:49 ` Dan Williams 2017-06-15 8:11 ` Jan Kara 2017-06-15 8:11 ` Jan Kara 2017-06-15 8:11 ` Jan Kara 2017-06-18 8:40 ` Christoph Hellwig 2017-06-18 8:40 ` Christoph Hellwig 2017-06-18 8:40 ` Christoph Hellwig 2017-06-19 2:06 ` Dan Williams 2017-06-19 2:06 ` Dan Williams 2017-06-19 2:06 ` Dan Williams 2017-06-09 20:24 ` [PATCH v3 09/14] x86, libnvdimm, pmem: move arch_invalidate_pmem() " Dan Williams 2017-06-09 20:24 ` Dan Williams 2017-06-09 20:24 ` Dan Williams 2017-06-14 10:49 ` Jan Kara [this message] 2017-06-14 10:49 ` Jan Kara 2017-06-09 20:24 ` [PATCH v3 10/14] pmem: remove global pmem api Dan Williams 2017-06-09 20:24 ` Dan Williams 2017-06-09 20:24 ` Dan Williams 2017-06-14 10:48 ` Jan Kara 2017-06-14 10:48 ` Jan Kara 2017-06-14 10:48 ` Jan Kara 2017-06-09 20:24 ` [PATCH v3 11/14] libnvdimm, pmem: fix persistence warning Dan Williams 2017-06-09 20:24 ` Dan Williams 2017-06-09 20:24 ` Dan Williams 2017-06-09 20:24 ` [PATCH v3 12/14] libnvdimm, nfit: enable support for volatile ranges Dan Williams 2017-06-09 20:24 ` Dan Williams 2017-06-09 20:24 ` Dan Williams 2017-06-09 20:24 ` [PATCH v3 13/14] filesystem-dax: gate calls to dax_flush() on QUEUE_FLAG_WC Dan Williams 2017-06-09 20:24 ` Dan Williams 2017-06-09 20:24 ` Dan Williams 2017-06-14 10:46 ` Jan Kara 2017-06-14 10:46 ` Jan Kara 2017-06-14 16:49 ` Dan Williams 2017-06-14 16:49 ` Dan Williams 2017-06-14 16:49 ` Dan Williams 2017-06-14 23:11 ` [PATCH v4 13/14] libnvdimm, pmem: gate cache management on QUEUE_FLAG_WC in pmem_dax_flush() Dan Williams 2017-06-14 23:11 ` Dan Williams 2017-06-15 8:09 ` Jan Kara 2017-06-15 8:09 ` Jan Kara 2017-06-18 8:45 ` [PATCH v3 13/14] filesystem-dax: gate calls to dax_flush() on QUEUE_FLAG_WC Christoph Hellwig 2017-06-18 8:45 ` Christoph Hellwig 2017-06-18 8:45 ` Christoph Hellwig 2017-06-19 2:07 ` Dan Williams 2017-06-19 2:07 ` Dan Williams 2017-06-19 2:07 ` Dan Williams 2017-06-09 20:25 ` [PATCH v3 14/14] libnvdimm, pmem: disable dax flushing when pmem is fronting a volatile region Dan Williams 2017-06-09 20:25 ` Dan Williams 2017-06-09 20:25 ` Dan Williams 2017-06-09 23:21 ` Dan Williams 2017-06-09 23:21 ` Dan Williams 2017-06-10 17:54 ` [PATCH v4 " Dan Williams 2017-06-10 17:54 ` Dan Williams
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