ptr_ring: drop duplicated tail zeroing code

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We have some rather subtle code around zeroing tail entries, minimizing
cache bouncing.  Let's put it all in one place.

Doing this also reduces the text size slightly, e.g. for
drivers/vhost/net.o
  Before: text: 15,114 bytes
  After: text: 15,082 bytes

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Link: https://patch.msgid.link/adb9d941de4a2b619ddb2be271a9939849e70687.1758690291.git.mst@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

...

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Michael S. Tsirkin 2025-09-24 01:27:07 -04:00 • committed by Jakub Kicinski

parent 8d5868f8c1

commit 4e9510f162

1 changed files with 24 additions and 18 deletions

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42

include/linux/ptr_ring.h

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