libzfs: migrate single-use libzfs_set_pipe_max() to libzfs_core

Notably, this also means that the pipe is expanded before each
dataset is received, so updates to /p/s/f/pipe-max-size are reflected
for each new dataset

Reviewed-by: Brian Behlendorf <[email protected]>
Reviewed-by: Rich Ercolani <[email protected]>
Reviewed-by: Paul Dagnelie <[email protected]>
Signed-off-by: Ahelenia Ziemiańska <[email protected]>
Closes #13133

2 files changed, 0 insertions, 58 deletions

diff --git a/lib/libzfs/os/freebsd/libzfs_compat.c b/lib/libzfs/os/freebsd/libzfs_compat.c
index ce2dcef00..f5be2b90b 100644
--- a/lib/libzfs/os/freebsd/libzfs_compat.c
+++ b/lib/libzfs/os/freebsd/libzfs_compat.c
@@ -38,12 +38,6 @@
 #define	ZFS_KMOD	"openzfs"
 #endif
 
-void
-libzfs_set_pipe_max(int infd)
-{
-	/* FreeBSD automatically resizes */
-	(void) infd;
-}
 
 static int
 execvPe(const char *name, const char *path, char * const *argv,
diff --git a/lib/libzfs/os/linux/libzfs_sendrecv_os.c b/lib/libzfs/os/linux/libzfs_sendrecv_os.c
deleted file mode 100644
index 593c38ec6..000000000
--- a/lib/libzfs/os/linux/libzfs_sendrecv_os.c
+++ /dev/null
@@ -1,52 +0,0 @@
-/*
- * CDDL HEADER START
- *
- * The contents of this file are subject to the terms of the
- * Common Development and Distribution License (the "License").
- * You may not use this file except in compliance with the License.
- *
- * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
- * or http://www.opensolaris.org/os/licensing.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- *
- * When distributing Covered Code, include this CDDL HEADER in each
- * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
- * If applicable, add the following below this CDDL HEADER, with the
- * fields enclosed by brackets "[]" replaced with your own identifying
- * information: Portions Copyright [yyyy] [name of copyright owner]
- *
- * CDDL HEADER END
- */
-
-
-#include <libzfs.h>
-
-#include "../../libzfs_impl.h"
-
-#ifndef F_SETPIPE_SZ
-#define	F_SETPIPE_SZ (F_SETLEASE + 7)
-#endif /* F_SETPIPE_SZ */
-
-#ifndef F_GETPIPE_SZ
-#define	F_GETPIPE_SZ (F_GETLEASE + 7)
-#endif /* F_GETPIPE_SZ */
-
-void
-libzfs_set_pipe_max(int infd)
-{
-	FILE *procf = fopen("/proc/sys/fs/pipe-max-size", "re");
-
-	if (procf != NULL) {
-		unsigned long max_psize;
-		long cur_psize;
-		if (fscanf(procf, "%lu", &max_psize) > 0) {
-			cur_psize = fcntl(infd, F_GETPIPE_SZ);
-			if (cur_psize > 0 &&
-			    max_psize > (unsigned long) cur_psize)
-				fcntl(infd, F_SETPIPE_SZ,
-				    max_psize);
-		}
-		fclose(procf);
-	}
-}