From: Andrei Vagin <ava...@virtuozzo.com> A return value of 0 means end of input, so we need to stop reading from this descriptor.
https://jira.sw.ru/browse/PSBM-68732 Cc: Dmitry Safonov <dsafo...@virtuozzo.com> Signed-off-by: Andrei Vagin <ava...@virtuozzo.com> --- criu/page-xfer.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/criu/page-xfer.c b/criu/page-xfer.c index 6e64f2d..947487e 100644 --- a/criu/page-xfer.c +++ b/criu/page-xfer.c @@ -106,6 +106,11 @@ static int write_pages_to_server(struct page_xfer *xfer, return -1; } + if (ret == 0) { + pr_err("A pipe was closed unexpectedly\n"); + return -1; + } + pr_debug("\tSpliced: %lu bytes sent\n", (unsigned long)ret); left -= ret; } @@ -186,6 +191,10 @@ static int write_pages_loc(struct page_xfer *xfer, pr_perror("Unable to spice data"); return -1; } + if (ret == 0) { + pr_err("A pipe was closed unexpectedly"); + return -1; + } curr += ret; if (curr == len) break; @@ -581,6 +590,10 @@ static int page_server_add(int sk, struct page_server_iov *pi) pr_perror("Can't read from socket"); return -1; } + if (chunk == 0) { + pr_err("The socket was closed unexpectedly\n"); + return -1; + } if (lxfer->write_pages(lxfer, cxfer.p[0], chunk)) return -1; -- 2.9.4 _______________________________________________ Devel mailing list Devel@openvz.org https://lists.openvz.org/mailman/listinfo/devel
