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| author | dchagin <dchagin@FreeBSD.org> | 2016-04-02 06:18:19 +0000 |
|---|---|---|
| committer | dchagin <dchagin@FreeBSD.org> | 2016-04-02 06:18:19 +0000 |
| commit | bb89744b6e6dd53145b3b109086ae0ff2acbb71f (patch) | |
| tree | d7b59c82b1409f3d7bb08d801776cb836f007069 | |
| parent | 63a98b35e794424aa8319138b025955acf776027 (diff) | |
| download | FreeBSD-src-bb89744b6e6dd53145b3b109086ae0ff2acbb71f.zip FreeBSD-src-bb89744b6e6dd53145b3b109086ae0ff2acbb71f.tar.gz | |
MFC r297297:
When write(2) on eventfd object fails with the error EAGAIN do not return the number of bytes written.
| -rw-r--r-- | sys/compat/linux/linux_event.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sys/compat/linux/linux_event.c b/sys/compat/linux/linux_event.c index a089d43..8d704aa 100644 --- a/sys/compat/linux/linux_event.c +++ b/sys/compat/linux/linux_event.c @@ -748,6 +748,8 @@ retry: if (UINT64_MAX - efd->efd_count <= count) { if ((efd->efd_flags & LINUX_O_NONBLOCK) != 0) { mtx_unlock(&efd->efd_lock); + /* Do not not return the number of bytes written */ + uio->uio_resid += sizeof(eventfd_t); return (EAGAIN); } error = mtx_sleep(&efd->efd_count, &efd->efd_lock, |
