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charset="us-ascii" Content-ID: <5D13729F1F2ACD44A07E9894FB8EA387@namprd15.prod.outlook.com> Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-MS-Exchange-CrossTenant-Network-Message-Id: 49f663c1-64c4-4000-e87c-08d704d646bf X-MS-Exchange-CrossTenant-originalarrivaltime: 10 Jul 2019 01:31:05.6067 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 8ae927fe-1255-47a7-a2af-5f3a069daaa2 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: guro@fb.com X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR15MB3050 X-OriginatorOrg: fb.com X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2019-07-10_01:,, signatures=0 X-Proofpoint-Spam-Details: rule=fb_default_notspam policy=fb_default score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1907100016 X-FB-Internal: deliver 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 Tue, Jul 09, 2019 at 02:59:42PM +0900, Minchan Kim wrote: > Hi Roman, >=20 >=20 > On Wed, May 15, 2019 at 8:51 AM Roman Gushchin wrote: > > > > Vmalloc() is getting more and more used these days (kernel stacks, > > bpf and percpu allocator are new top users), and the total % > > of memory consumed by vmalloc() can be pretty significant > > and changes dynamically. > > > > /proc/meminfo is the best place to display this information: > > its top goal is to show top consumers of the memory. > > > > Since the VmallocUsed field in /proc/meminfo is not in use > > for quite a long time (it has been defined to 0 by the > > commit a5ad88ce8c7f ("mm: get rid of 'vmalloc_info' from > > /proc/meminfo")), let's reuse it for showing the actual > > physical memory consumption of vmalloc(). > > > > Signed-off-by: Roman Gushchin > > Acked-by: Johannes Weiner > > Acked-by: Vlastimil Babka > Acked-by: Minchan Kim >=20 > How it's going on? > Android needs this patch since it has gathered vmalloc pages from > /proc/vmallocinfo. It's too slow. >=20 Andrew, can you, please, pick this one? It has been in the mm tree already, but then it was dropped because of some other non-related patches in the series conflicted with some x86 changes. This patch is useful by itself, and doesn't depend on anything else. Thanks!