diff options
Diffstat (limited to 'lib/util/iov_buf.c')
| -rw-r--r-- | lib/util/iov_buf.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/util/iov_buf.c b/lib/util/iov_buf.c index 82a4af5323..d260b2fea8 100644 --- a/lib/util/iov_buf.c +++ b/lib/util/iov_buf.c @@ -75,6 +75,10 @@ bool iov_advance(struct iovec **iov, int *iovcnt, size_t n) /* * Skip 0-length iovec's + * + * There might be empty buffers at the end of iov. Next time we do a + * readv/writev based on this iov would give 0 transferred bytes, also + * known as EPIPE. So we need to be careful discarding them. */ while ((cnt > 0) && (v->iov_len == 0)) { |