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-rw-r--r--source3/libsmb/clireadwrite.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/source3/libsmb/clireadwrite.c b/source3/libsmb/clireadwrite.c
index 0c79da9f84..d77875bae5 100644
--- a/source3/libsmb/clireadwrite.c
+++ b/source3/libsmb/clireadwrite.c
@@ -402,11 +402,12 @@ ssize_t cli_write(struct cli_state *cli,
mpx = 1;
}
- if (!client_is_signing_on(cli) &&
+ if (write_mode == 0 &&
+ !client_is_signing_on(cli) &&
(cli->posix_capabilities & CIFS_UNIX_LARGE_WRITE_CAP) &&
(cli->capabilities & CAP_LARGE_FILES)) {
/* Only do massive writes if we can do them direct
- * with no signing. */
+ * with no signing - not on a pipe. */
writesize = CLI_SAMBA_MAX_POSIX_LARGE_WRITEX_SIZE;
} else if (cli->capabilities & CAP_LARGE_READX) {
if (cli->is_samba) {