mm: replace __GFP_NO_CODETAG with ALLOC_NO_CODETAG

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Now that alloc_pages has an entrypoint that allows passing alloc_flags, we
can take advantage of this to start removing GFP flags that are only used
for mm-internal stuff.

This requires also plumbing the alloc_flags into some more of the
allocator code, in particular __alloc_pages[_noprof]() gets an alloc_flags
arg to go along with its callees, and we now need to pass those flags
deeper into the allocator so they can reach the alloc_tag code.

While moving the flag definition into page_alloc.h, also update the
comment per Hao's suggestion.

No functional change intended.

Link: https://lore.kernel.org/all/b4916118-3537-4e19-8bc8-1d103dd0d225@linux.dev/
Link: https://lore.kernel.org/20260703-alloc-trylock-v5-15-c87b714e19d3@google.com
Signed-off-by: Brendan Jackman <jackmanb@google.com>
Reviewed-by: Vlastimil Babka (SUSE) <vbabka@kernel.org>
Tested-by: Hao Ge <hao.ge@linux.dev>
Acked-by: Hao Ge <hao.ge@linux.dev>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

...

This commit is contained in:

Brendan Jackman 2026-07-03 12:31:55 +00:00 • committed by Andrew Morton

parent a4f6c0f83d

commit 6372aac4d4

6 changed files with 55 additions and 46 deletions

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4

include/linux/alloc_tag.h

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23

mm/alloc_tag.c

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4

mm/compaction.c

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52

mm/page_alloc.c

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14

mm/page_alloc.h

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4

mm/page_frag_cache.c

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