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| author | Sergey Alirzaev <l29ah@cock.li> | 2020-02-05 03:34:57 +0300 |
|---|---|---|
| committer | Dominique Martinet <dominique.martinet@cea.fr> | 2020-03-27 09:29:56 +0000 |
| commit | 52cbee2a5768d1cf6051286490be43e1712674b3 (patch) | |
| tree | 7e6c6c46869b9c1b64d251d3720853cfd9042f4f /fs/9p | |
| parent | 388f6966b05746e80e809984231b06e93aa5d891 (diff) | |
| download | lwn-52cbee2a5768d1cf6051286490be43e1712674b3.tar.gz lwn-52cbee2a5768d1cf6051286490be43e1712674b3.zip | |
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>
Diffstat (limited to 'fs/9p')
| -rw-r--r-- | fs/9p/vfs_file.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c index fe7f0bd2048e..92cd1d80218d 100644 --- a/fs/9p/vfs_file.c +++ b/fs/9p/vfs_file.c @@ -388,7 +388,10 @@ 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); - ret = p9_client_read(fid, iocb->ki_pos, to, &err); + 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; |