From: Dave Airlie <airlied@redhat.com>
Date: Wed, 25 Mar 2026 23:41:26 +0000 (+1000)
Subject: BackMerge tag 'v7.0-rc4' into drm-next
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=13c072b8e91a5ccb5855ca1ba6fe3ea467dbf94d;p=thirdparty%2Fkernel%2Flinux.git

BackMerge tag 'v7.0-rc4' into drm-next

Linux 7.0-rc4

Needed for rust tree.

Signed-off-by: Dave Airlie <airlied@redhat.com>
---

13c072b8e91a5ccb5855ca1ba6fe3ea467dbf94d
diff --cc include/linux/mmu_notifier.h
index dcdfdf1e0b39d,8450e18a87c26..0da15adb4aac0
--- a/include/linux/mmu_notifier.h
+++ b/include/linux/mmu_notifier.h
@@@ -233,33 -233,8 +233,33 @@@ struct mmu_notifier 
  	unsigned int users;
  };
  
 +/**
 + * struct mmu_interval_notifier_finish - mmu_interval_notifier two-pass abstraction
 + * @link: Lockless list link for the notifiers pending pass list
 + * @notifier: The mmu_interval_notifier for which the finish pass is called.
 + *
 + * Allocate, typically using GFP_NOWAIT in the interval notifier's start pass.
 + * Note that with a large number of notifiers implementing two passes,
 + * allocation with GFP_NOWAIT will become increasingly likely to fail, so consider
 + * implementing a small pool instead of using kmalloc() allocations.
 + *
 + * If the implementation needs to pass data between the start and the finish passes,
 + * the recommended way is to embed struct mmu_interval_notifier_finish into a larger
 + * structure that also contains the data needed to be shared. Keep in mind that
 + * a notifier callback can be invoked in parallel, and each invocation needs its
 + * own struct mmu_interval_notifier_finish.
 + *
 + * If allocation fails, then the &mmu_interval_notifier_ops->invalidate_start op
 + * needs to implements the full notifier functionality. Please refer to its
 + * documentation.
 + */
 +struct mmu_interval_notifier_finish {
 +	struct llist_node link;
 +	struct mmu_interval_notifier *notifier;
 +};
 +
  /**
-  * struct mmu_interval_notifier_ops
+  * struct mmu_interval_notifier_ops - callback for range notification
   * @invalidate: Upon return the caller must stop using any SPTEs within this
   *              range. This function can sleep. Return false only if sleeping
   *              was required but mmu_notifier_range_blockable(range) is false.