Michal Hocko 19809c2da2 mm, vmalloc: use __GFP_HIGHMEM implicitly ... __vmalloc* allows users to provide gfp flags for the underlying allocation. This API is quite popular $ git grep "=[[:space:]]__vmalloc\|return[[:space:]]*__vmalloc" | wc -l 77 The only problem is that many people are not aware that they really want to give __GFP_HIGHMEM along with other flags because there is really no reason to consume precious lowmemory on CONFIG_HIGHMEM systems for pages which are mapped to the kernel vmalloc space. About half of users don't use this flag, though. This signals that we make the API unnecessarily too complex. This patch simply uses __GFP_HIGHMEM implicitly when allocating pages to be mapped to the vmalloc space. Current users which add __GFP_HIGHMEM are simplified and drop the flag. Link: http://lkml.kernel.org/r/20170307141020.29107-1-mhocko@kernel.org Signed-off-by: Michal Hocko <mhocko@suse.com> Reviewed-by: Matthew Wilcox <mawilcox@microsoft.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: David Rientjes <rientjes@google.com> Cc: Cristopher Lameter <cl@linux.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2017-05-08 17:15:13 -07:00
..
bcache	drivers/md/bcache/super.c: use kvmalloc	2017-05-08 17:15:13 -07:00
persistent-data	dm block manager: remove an unused argument from dm_block_manager_create()	2017-04-27 17:08:41 -04:00
bitmap.c	md: fix several trivial typos in comments	2017-03-23 22:54:57 -07:00
bitmap.h	md: move bitmap_destroy to the beginning of __md_stop	2017-03-16 16:55:58 -07:00
dm-bio-prison-v1.c	dm bio prison v2: new interface for the bio prison	2017-03-07 11:30:16 -05:00
dm-bio-prison-v1.h	dm bio prison v2: new interface for the bio prison	2017-03-07 11:30:16 -05:00
dm-bio-prison-v2.c	dm bio prison v2: new interface for the bio prison	2017-03-07 11:30:16 -05:00
dm-bio-prison-v2.h	dm bio prison v2: new interface for the bio prison	2017-03-07 11:30:16 -05:00
dm-bio-record.h
dm-bufio.c	mm, vmalloc: use __GFP_HIGHMEM implicitly	2017-05-08 17:15:13 -07:00
dm-bufio.h	dm bufio: add sector start offset to dm-bufio interface	2017-03-07 13:28:33 -05:00
dm-builtin.c	dm: move request-based code out to dm-rq.[hc]	2016-06-10 15:15:44 -04:00
dm-cache-background-tracker.c	dm cache: significant rework to leverage dm-bio-prison-v2	2017-03-07 13:28:31 -05:00
dm-cache-background-tracker.h	dm cache: significant rework to leverage dm-bio-prison-v2	2017-03-07 13:28:31 -05:00
dm-cache-block-types.h	linux: drop __bitwise__ everywhere	2016-12-16 00:13:41 +02:00
dm-cache-metadata.c	dm cache metadata: fail operations if fail_io mode has been established	2017-05-05 14:40:13 -04:00
dm-cache-metadata.h	dm cache: significant rework to leverage dm-bio-prison-v2	2017-03-07 13:28:31 -05:00
dm-cache-policy-internal.h	dm cache: significant rework to leverage dm-bio-prison-v2	2017-03-07 13:28:31 -05:00
dm-cache-policy-smq.c	dm cache policy smq: cleanup free_target_met() and clean_target_met()	2017-05-04 10:27:47 -04:00
dm-cache-policy.c
dm-cache-policy.h	dm cache: significant rework to leverage dm-bio-prison-v2	2017-03-07 13:28:31 -05:00
dm-cache-target.c	- A major update for DM cache that reduces the latency for deciding	2017-05-03 10:31:20 -07:00
dm-core.h	libnvdimm for 4.12	2017-05-05 18:49:20 -07:00
dm-crypt.c	- A major update for DM cache that reduces the latency for deciding	2017-05-03 10:31:20 -07:00
dm-delay.c	dm: mark targets that pass integrity data	2017-04-24 12:04:32 -04:00
dm-era-target.c	dm block manager: remove an unused argument from dm_block_manager_create()	2017-04-27 17:08:41 -04:00
dm-exception-store.c
dm-exception-store.h
dm-flakey.c	dm flakey: introduce "error_writes" feature	2016-12-13 15:01:31 -05:00
dm-integrity.c	dm integrity: use previously calculated log2 of sectors_per_block	2017-04-27 12:16:32 -04:00
dm-io.c	dm: support REQ_OP_WRITE_ZEROES	2017-04-08 11:25:38 -06:00
dm-ioctl.c	drivers/md/dm-ioctl.c: use kvmalloc rather than opencoded variant	2017-05-08 17:15:13 -07:00
dm-kcopyd.c	dm kcopyd: switch to use REQ_OP_WRITE_ZEROES	2017-04-08 11:25:38 -06:00
dm-linear.c	libnvdimm for 4.12	2017-05-05 18:49:20 -07:00
dm-log-userspace-base.c
dm-log-userspace-transfer.c
dm-log-userspace-transfer.h
dm-log-writes.c	Merge branch 'for-4.9/block' of git://git.kernel.dk/linux-block	2016-10-07 14:42:05 -07:00
dm-log.c	block,fs: use REQ_* flags directly	2016-11-01 09:43:26 -06:00
dm-mpath.c	- A major update for DM cache that reduces the latency for deciding	2017-05-03 10:31:20 -07:00
dm-mpath.h
dm-path-selector.c
dm-path-selector.h
dm-queue-length.c
dm-raid.c	- A major update for DM cache that reduces the latency for deciding	2017-05-03 10:31:20 -07:00
dm-raid1.c	block: remove the discard_zeroes_data flag	2017-04-08 11:25:38 -06:00
dm-region-hash.c	block: rename bio bi_rw to bi_opf	2016-08-07 14:41:02 -06:00
dm-round-robin.c	dm round robin: revert "use percpu 'repeat_count' and 'current_path'"	2017-02-17 00:54:09 -05:00
dm-rq.c	Merge branch 'for-linus' of git://git.kernel.dk/linux-block	2017-05-06 11:25:08 -07:00
dm-rq.h	dm: always defer request allocation to the owner of the request_queue	2017-01-27 15:08:35 -07:00
dm-service-time.c
dm-snap-persistent.c	block,fs: use REQ_* flags directly	2016-11-01 09:43:26 -06:00
dm-snap-transient.c
dm-snap.c	dm: teach dm-targets to use a dax_device + dax_operations	2017-04-25 13:20:36 -07:00
dm-stats.c	mm: introduce kv[mz]alloc helpers	2017-05-08 17:15:12 -07:00
dm-stats.h
dm-stripe.c	libnvdimm for 4.12	2017-05-05 18:49:20 -07:00
dm-switch.c
dm-sysfs.c	dm: move request-based code out to dm-rq.[hc]	2016-06-10 15:15:44 -04:00
dm-table.c	- A major update for DM cache that reduces the latency for deciding	2017-05-03 10:31:20 -07:00
dm-target.c	libnvdimm for 4.12	2017-05-05 18:49:20 -07:00
dm-thin-metadata.c	dm block manager: remove an unused argument from dm_block_manager_create()	2017-04-27 17:08:41 -04:00
dm-thin-metadata.h	dm thin: fix a race condition between discarding and provisioning a block	2016-07-20 12:43:35 -04:00
dm-thin.c	- A major update for DM cache that reduces the latency for deciding	2017-05-03 10:31:20 -07:00
dm-uevent.c
dm-uevent.h
dm-verity-fec.c	- A major update for DM cache that reduces the latency for deciding	2017-05-03 10:31:20 -07:00
dm-verity-fec.h	dm verity fec: limit error correction recursion	2017-03-16 09:37:31 -04:00
dm-verity-target.c	dm verity: switch to using asynchronous hash crypto API	2017-04-24 15:37:04 -04:00
dm-verity.h	dm verity: switch to using asynchronous hash crypto API	2017-04-24 15:37:04 -04:00
dm-zero.c	block: rename bio bi_rw to bi_opf	2016-08-07 14:41:02 -06:00
dm.c	libnvdimm for 4.12	2017-05-05 18:49:20 -07:00
dm.h	dm: introduce enum dm_queue_mode to cleanup related code	2017-04-27 17:08:44 -04:00
faulty.c	md: fast clone bio in bio_clone_mddev()	2017-02-15 11:24:54 -08:00
Kconfig	- DM cache metadata fixes to short-circuit operations that require the	2017-05-05 19:31:06 -07:00
linear.c	Merge branch 'md-next' into md-linus	2017-05-01 14:09:21 -07:00
linear.h	md linear: fix a race between linear_add() and linear_congested()	2017-02-13 09:17:50 -08:00
Makefile	- A major update for DM cache that reduces the latency for deciding	2017-05-03 10:31:20 -07:00
md-cluster.c	md-cluster: Fix a memleak in an error handling path	2017-04-14 08:08:29 -07:00
md-cluster.h	md-cluster: add the support for resize	2017-03-16 16:55:50 -07:00
md.c	md: handle read-only member devices better.	2017-04-20 13:25:51 -07:00
md.h	Merge branch 'md-next' into md-linus	2017-05-01 14:09:21 -07:00
multipath.c	md: support REQ_OP_WRITE_ZEROES	2017-04-08 11:25:38 -06:00
multipath.h
raid0.c	Merge branch 'md-next' into md-linus	2017-05-01 14:09:21 -07:00
raid0.h
raid1.c	Merge branch 'md-next' into md-linus	2017-05-01 14:09:21 -07:00
raid1.h	md/raid1: Use a new variable to count flighting sync requests	2017-04-27 14:01:16 -07:00
raid5-cache.c	- A major update for DM cache that reduces the latency for deciding	2017-05-03 10:31:20 -07:00
raid5-log.h	raid5-ppl: use resize_stripes() when enabling or disabling ppl	2017-04-10 12:00:49 -07:00
raid5-ppl.c	raid5-ppl: use a single mempool for ppl_io_unit and header_page	2017-04-11 14:56:46 -07:00
raid5.c	Merge branch 'md-next' into md-linus	2017-05-01 14:09:21 -07:00
raid5.h	- A major update for DM cache that reduces the latency for deciding	2017-05-03 10:31:20 -07:00
raid10.c	Merge branch 'md-next' into md-linus	2017-05-01 14:09:21 -07:00
raid10.h	md/raid10: simplify the splitting of requests.	2017-04-11 10:13:02 -07:00