cxl/memdev: Hold memdev lock during memdev poison injection/clear

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cxl_dpa_to_region() assumes that it is running a context where it is not
racing changes to "cxlmd->dev.driver". Acquire the memdev device lock in
the debugfs entry points to preclude debugfs usage racing cxl_mem driver
detach.

Suggested-by: Dan Williams <djbw@kernel.org>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Alison Schofield <alison.schofield@intel.com>
Reviewed-by: Dan Williams <djbw@kernel.org>
Signed-off-by: Li Ming <ming.li@zohomail.com>
Link: https://patch.msgid.link/20260423111949.177399-1-ming.li@zohomail.com
Signed-off-by: Dave Jiang <dave.jiang@intel.com>

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Li Ming 2026-04-23 19:19:49 +08:00 • committed by Dave Jiang

parent e43ffb69e0

commit 574eda81d0

1 changed files with 10 additions and 0 deletions

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drivers/cxl/mem.c

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