From: Jeff Garzik <email@example.com>
Date: Mon, 16 Sep 2002 19:48:37 -0400
I dunno when it happened, but 2.5.x now returns EINVAL for all
In 2.4.x, if sendpage is NULL, file_send_actor in mm/filemap.c faked a
call to fops->write().
In 2.5.x, if sendpage is NULL, EINVAL is unconditionally returned.
What if source and destination file and offsets match?
Sounds like 2.4.x might deadlock.
In fact it sounds similar to the "read() with buf pointed to same
page in MAP_WRITE mmap()'d area" deadlock we had ages ago.
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This archive was generated by hypermail 2b29 : Mon Sep 23 2002 - 22:00:18 EST