]> www.infradead.org Git - users/jedix/linux-maple.git/commit
mm/sparse: nr_pages won't be 0
authorWei Yang <richard.weiyang@gmail.com>
Wed, 19 Jun 2024 01:06:09 +0000 (01:06 +0000)
committerAndrew Morton <akpm@linux-foundation.org>
Thu, 4 Jul 2024 02:30:19 +0000 (19:30 -0700)
commit861dd8b9e34fc3fc05762a952ad8dd701dc0f0f1
treeecbe4cb37b865314ed1bd54ad87d28ac4e336246
parent5cea5666e4b556f4daa414a7379790ce8d225a48
mm/sparse: nr_pages won't be 0

Function subsection_map_init() is only used in free_area_init() in the
loop of for_each_mem_pfn_range().  And we are sure in each iteration of
for_each_mem_pfn_range(), start_pfn < end_pfn.

So nr_pages is not possible to be 0 and we can remove the check.

Link: https://lkml.kernel.org/r/20240619010612.20740-1-richard.weiyang@gmail.com
Signed-off-by: Wei Yang <richard.weiyang@gmail.com>
Cc: Mike Rapoport (IBM) <rppt@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
mm/sparse.c