openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

9p: read only once on O_NONBLOCK 

A proper way to handle O_NONBLOCK would be making the requests and
responses happen asynchronously, but this would require serious code
refactoring.

Link: http://lkml.kernel.org/r/20200205003457.24340-2-l29ah@cock.li
Signed-off-by: Sergey Alirzaev <l29ah@cock.li>
Signed-off-by: Dominique Martinet <dominique.martinet@cea.fr>
This commit is contained in:
Sergey Alirzaev 2020-02-05 03:34:57 +03:00 committed by Dominique Martinet
parent 388f6966b0
commit 52cbee2a57
1 changed files with 4 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
fs/9p/vfs_file.c
View File

@ -388,6 +388,9 @@ v9fs_file_read_iter(struct kiocb *iocb, struct iov_iter *to)
p9_debug(P9_DEBUG_VFS, "count %zu offset %lld\n",
iov_iter_count(to), iocb->ki_pos);
if (iocb->ki_filp->f_flags & O_NONBLOCK)
ret = p9_client_read_once(fid, iocb->ki_pos, to, &err);
else
ret = p9_client_read(fid, iocb->ki_pos, to, &err);
if (!ret)
return err;