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[PATCH] fuse: add O_NONBLOCK support to FUSE device

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I don't like duplicating the connected and list_empty tests in fuse_dev_readv,
but this seemed cleaner than adding the f_flags test to request_wait.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Jeff Dike 2006-04-10 22:54:53 -07:00 committed by Linus Torvalds
parent 385a17bfc3
commit e5ac1d1e70
1 changed files with 6 additions and 0 deletions
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6
fs/fuse/dev.c
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@ -619,6 +619,12 @@ static ssize_t fuse_dev_readv(struct file *file, const struct iovec *iov,
err = -EPERM;
if (!fc)
goto err_unlock;
err = -EAGAIN;
if ((file->f_flags & O_NONBLOCK) && fc->connected &&
list_empty(&fc->pending))
goto err_unlock;
request_wait(fc);
err = -ENODEV;
if (!fc->connected)