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Ohhoon Kwon fc1f5e980a mm: sparse: pass section_nr to find_memory_block 
With CONFIG_SPARSEMEM_EXTREME enabled, __section_nr() which converts
mem_section to section_nr could be costly since it iterates all section
roots to check if the given mem_section is in its range.

On the other hand, __nr_to_section() which converts section_nr to
mem_section can be done in O(1).

Let's pass section_nr instead of mem_section ptr to find_memory_block() in
order to reduce needless iterations.

Link: https://lkml.kernel.org/r/20210707150212.855-3-ohoono.kwon@samsung.com
Signed-off-by: Ohhoon Kwon <ohoono.kwon@samsung.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Mike Rapoport <rppt@linux.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Cc: Baoquan He <bhe@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-09-03 09:58:14 -07:00
..
firmware_loader
firmware_loader: fix use-after-free in firmware_fallback_sysfs
2021-07-29 17:22:15 +02:00
power
PM: domains: Improve runtime PM performance state handling
2021-08-25 20:15:54 +02:00
regmap
regmap: mdio: Reject invalid addresses
2021-06-14 15:00:29 +01:00
test
device property: Remove some casts in property-entry-test
2021-06-23 16:37:21 -06:00
arch_numa.c
arch_numa: fix common code printing of phys_addr_t
2021-02-18 23:18:04 -08:00
arch_topology.c
arch_topology: Avoid use-after-free for scale_freq_data
2021-07-01 07:32:14 +05:30
attribute_container.c
driver core: attribute_container: fix W=1 warnings
2021-05-14 13:37:10 +02:00
auxiliary.c
driver core: auxiliary bus: Fix memory leak when driver_register() fail
2021-07-21 16:36:06 +02:00
base.h
driver core: Export device_driver_attach()
2021-06-21 15:29:24 -06:00
bus.c
driver core: Flow the return code from ->probe() through to sysfs bind
2021-06-21 15:29:24 -06:00
cacheinfo.c
drivers core: Use sysfs_emit for shared_cpu_map_show and shared_cpu_list_show
2020-10-02 13:24:40 +02:00
class.c
drivers: base: fix some kernel-doc markups
2020-11-09 18:56:49 +01:00
component.c
component: Rename 'dev' to 'parent'
2021-05-27 15:49:59 +02:00
container.c
…
core.c
PCI/MSI: Protect msi_desc::masked for multi-MSI
2021-08-10 10:59:20 +02:00
cpu.c
drivers/base: Constify static attribute_group structs
2021-06-04 15:06:28 +02:00
dd.c
drivers core: Fix oops when driver probe fails
2021-07-27 14:44:43 +02:00
devcoredump.c
devcoredump: remove contact information
2021-06-04 15:05:44 +02:00
devres.c
devres: Enable trace events
2021-06-15 17:14:36 +02:00
devtmpfs.c
devtmpfs: actually reclaim some init memory
2021-03-23 14:57:35 +01:00
driver.c
drivers: base: Convert to printk alias functions
2020-07-10 14:16:44 +02:00
firmware.c
…
hypervisor.c
…
init.c
driver core: auxiliary bus: Fix calling stage for auxiliary bus init
2021-02-11 08:43:03 +01:00
isa.c
isa: Make the remove callback for isa drivers return void
2021-01-26 07:42:27 +01:00
Kconfig
RISC-V Patches for the 5.12 Merge Window
2021-02-26 10:28:35 -08:00
Makefile
devres: Enable trace events
2021-06-15 17:14:36 +02:00
map.c
…
memory.c
mm: sparse: pass section_nr to find_memory_block
2021-09-03 09:58:14 -07:00
module.c
…
node.c
Driver core changes for 5.14-rc1
2021-07-05 13:51:41 -07:00
pinctrl.c
…
platform-msi.c
platform-msi: fix kernel-doc warnings
2021-04-02 16:40:08 +02:00
platform.c
drivers/base: Constify static attribute_group structs
2021-06-04 15:06:28 +02:00
property.c
Driver core changes for 5.14-rc1
2021-07-05 13:51:41 -07:00
soc.c
soc: fix comment for freeing soc_dev_attr
2020-12-09 19:46:31 +01:00
swnode.c
software node: Handle software node injection to an existing device properly
2021-06-23 19:34:58 +02:00
syscore.c
syscore: Use pm_pr_dbg() for syscore_{suspend,resume}()
2020-09-08 13:32:06 +02:00
topology.c
drivers core: Miscellaneous changes for sysfs_emit
2020-10-02 13:12:07 +02:00
trace.c
devres: Enable trace events
2021-06-15 17:14:36 +02:00
trace.h
devres: Enable trace events
2021-06-15 17:14:36 +02:00
transport_class.c
scsi: drivers: base: Propagate errors through the transport component
2020-01-15 22:55:37 -05:00