git: kernel -- Add O_FRNONBLOCKING, to allow reads which do not
commit 638e2d2dbe6f53c8cedaba64a0c882abf747f667
Author: Venkatesh Srinivas <me@endeavour.zapto.org>
Date: Wed Feb 23 07:12:20 2011 -0800
kernel -- Add O_FRNONBLOCKING, to allow reads which do not block on disk accesses.
Using extpread() or extpreadv() with O_FRNONBLOCKING on HAMMER file systems now allows
reads to return EWOULDBLOCK when the requested data is not in the buffer cache.
Summary of changes:
sys/kern/vfs_vnops.c | 4 +++-
sys/sys/fcntl.h | 3 ++-
sys/sys/vnode.h | 1 +
sys/vfs/hammer/hammer_vnops.c | 3 +++
4 files changed, 9 insertions(+), 2 deletions(-)
http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/638e2d2dbe6f53c8cedaba64a0c882abf747f667
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