git: kernel - Fix read event on file for select/poll API
commit 57b24f4ee66aaaa59b54e9577b93253cf435672f
Author: Matthew Dillon <dillon@apollo.backplane.com>
Date: Sun Aug 22 15:30:08 2010 -0700
kernel - Fix read event on file for select/poll API
* select/poll have always returned an immediate read event on regular
files, but kqueue is expected to only return a EVFILT_READ event
when not sitting at the file EOF.
* The kernel adds a NOTE_OLDAPI flag which filter functions can use to
discern between select/poll and kqueue related knotes.
* Adjust filesystem filter function to always return an immediate
event for reads via select/poll.
* Fixes guile, which for some reason beyond our ken select()'s for a
read event on a file.
Reported-by: Johannes Hofmann <johannes.hofmann@gmx.de>
Summary of changes:
sys/kern/sys_generic.c | 12 ++++++------
sys/sys/event.h | 4 ++++
sys/vfs/gnu/ext2fs/ext2_vnops.c | 7 +++++--
sys/vfs/hammer/hammer_vnops.c | 11 +++++------
sys/vfs/ufs/ufs_vnops.c | 6 +++++-
5 files changed, 25 insertions(+), 15 deletions(-)
http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/57b24f4ee66aaaa59b54e9577b93253cf435672f
--
DragonFly BSD source repository