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| author | Wei Yang <richard.weiyang@gmail.com> | 2024-05-25 04:30:40 +0200 |
|---|---|---|
| committer | Mike Rapoport (IBM) <rppt@kernel.org> | 2024-06-05 09:28:10 +0200 |
| commit | 922306a253e20ad5d0c4b8479d2dc5df9f325a04 (patch) | |
| tree | 06c2b48ecc4d7b9c08a894129f24d301147cff47 /mm/mm_init.c | |
| parent | mm/memblock: fix a typo in description of for_each_mem_region() (diff) | |
| download | linux-922306a253e20ad5d0c4b8479d2dc5df9f325a04.tar.xz linux-922306a253e20ad5d0c4b8479d2dc5df9f325a04.zip | |
mm/mm_init.c: move nr_initialised reset down a bit
We don't need to count nr_initialised in two cases:
* for low zones that are always populated
* after first_deferred_pfn is detected
Let's move the nr_initialised reset down a bit to reduce some comparison
of prev_end_pfn and end_pfn.
Signed-off-by: Wei Yang <richard.weiyang@gmail.com>
Link: https://lore.kernel.org/r/20240525023040.13509-3-richard.weiyang@gmail.com
Signed-off-by: Mike Rapoport (IBM) <rppt@kernel.org>
Diffstat (limited to 'mm/mm_init.c')
| -rw-r--r-- | mm/mm_init.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/mm/mm_init.c b/mm/mm_init.c index 2dfb87841fdb..bdbd800b0436 100644 --- a/mm/mm_init.c +++ b/mm/mm_init.c @@ -676,6 +676,14 @@ defer_init(int nid, unsigned long pfn, unsigned long end_pfn) if (early_page_ext_enabled()) return false; + + /* Always populate low zones for address-constrained allocations */ + if (end_pfn < pgdat_end_pfn(NODE_DATA(nid))) + return false; + + if (NODE_DATA(nid)->first_deferred_pfn != ULONG_MAX) + return true; + /* * prev_end_pfn static that contains the end of previous zone * No need to protect because called very early in boot before smp_init. @@ -685,12 +693,6 @@ defer_init(int nid, unsigned long pfn, unsigned long end_pfn) nr_initialised = 0; } - /* Always populate low zones for address-constrained allocations */ - if (end_pfn < pgdat_end_pfn(NODE_DATA(nid))) - return false; - - if (NODE_DATA(nid)->first_deferred_pfn != ULONG_MAX) - return true; /* * We start only with one section of pages, more pages are added as * needed until the rest of deferred pages are initialized. |