[PATCH drm-next 1/2] vmalloc: Add atomic_vmap

Markus Elfring Markus.Elfring at web.de
Wed Mar 5 17:08:57 UTC 2025


> Some drivers can use vmap in drm_panic, however, vmap is sleepable and
> takes locks. Since drm_panic will vmap in panic handler, atomic_vmap
> requests pages with GFP_ATOMIC and maps KVA without locks and sleep.

See also:
https://web.git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/submitting-patches.rst?h=v6.14-rc5#n94

Regards,
Markus


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