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Wysocki" , Baoquan He , Wei Yang Subject: Re: [PATCH v1 1/5] drivers/base/memory: rename MMOP_ONLINE_KEEP to MMOP_ONLINE Message-ID: <20200311141728.iav3lh3hcki5p7zc@master> Reply-To: Wei Yang References: <20200311123026.16071-1-david@redhat.com> <20200311123026.16071-2-david@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200311123026.16071-2-david@redhat.com> User-Agent: NeoMutt/20170113 (1.7.2) X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Wed, Mar 11, 2020 at 01:30:22PM +0100, David Hildenbrand wrote: >The name is misleading. Let's just name it like the online_type name we >expose to user space ("online"). > >Add some documentation to the types. > >Cc: Greg Kroah-Hartman >Cc: Andrew Morton >Cc: Michal Hocko >Cc: Oscar Salvador >Cc: "Rafael J. Wysocki" >Cc: Baoquan He >Cc: Wei Yang >Signed-off-by: David Hildenbrand Reviewed-by: Wei Yang >--- > drivers/base/memory.c | 9 +++++---- > include/linux/memory_hotplug.h | 6 +++++- > 2 files changed, 10 insertions(+), 5 deletions(-) > >diff --git a/drivers/base/memory.c b/drivers/base/memory.c >index 6448c9ece2cb..8c5ce42c0fc3 100644 >--- a/drivers/base/memory.c >+++ b/drivers/base/memory.c >@@ -216,7 +216,7 @@ static int memory_subsys_online(struct device *dev) > * attribute and need to set the online_type. > */ > if (mem->online_type < 0) >- mem->online_type = MMOP_ONLINE_KEEP; >+ mem->online_type = MMOP_ONLINE; > > ret = memory_block_change_state(mem, MEM_ONLINE, MEM_OFFLINE); > >@@ -251,7 +251,7 @@ static ssize_t state_store(struct device *dev, struct device_attribute *attr, > else if (sysfs_streq(buf, "online_movable")) > online_type = MMOP_ONLINE_MOVABLE; > else if (sysfs_streq(buf, "online")) >- online_type = MMOP_ONLINE_KEEP; >+ online_type = MMOP_ONLINE; > else if (sysfs_streq(buf, "offline")) > online_type = MMOP_OFFLINE; > else { >@@ -262,7 +262,7 @@ static ssize_t state_store(struct device *dev, struct device_attribute *attr, > switch (online_type) { > case MMOP_ONLINE_KERNEL: > case MMOP_ONLINE_MOVABLE: >- case MMOP_ONLINE_KEEP: >+ case MMOP_ONLINE: > /* mem->online_type is protected by device_hotplug_lock */ > mem->online_type = online_type; > ret = device_online(&mem->dev); >@@ -342,7 +342,8 @@ static ssize_t valid_zones_show(struct device *dev, > } > > nid = mem->nid; >- default_zone = zone_for_pfn_range(MMOP_ONLINE_KEEP, nid, start_pfn, nr_pages); >+ default_zone = zone_for_pfn_range(MMOP_ONLINE, nid, start_pfn, >+ nr_pages); > strcat(buf, default_zone->name); > > print_allowed_zone(buf, nid, start_pfn, nr_pages, MMOP_ONLINE_KERNEL, >diff --git a/include/linux/memory_hotplug.h b/include/linux/memory_hotplug.h >index f4d59155f3d4..261dbf010d5d 100644 >--- a/include/linux/memory_hotplug.h >+++ b/include/linux/memory_hotplug.h >@@ -47,9 +47,13 @@ enum { > > /* Types for control the zone type of onlined and offlined memory */ > enum { >+ /* Offline the memory. */ > MMOP_OFFLINE = -1, >- MMOP_ONLINE_KEEP, >+ /* Online the memory. Zone depends, see default_zone_for_pfn(). */ >+ MMOP_ONLINE, >+ /* Online the memory to ZONE_NORMAL. */ > MMOP_ONLINE_KERNEL, >+ /* Online the memory to ZONE_MOVABLE. */ > MMOP_ONLINE_MOVABLE, > }; > >-- >2.24.1 -- Wei Yang Help you, Help me