diff mbox series

[09/17] initrd: remove the BLKFLSBUF call in handle_initrd

Message ID 20200709151814.110422-10-hch@lst.de (mailing list archive)
State New, archived
Headers show
Series [01/17] init: remove the bstat helper | expand

Commit Message

Christoph Hellwig July 9, 2020, 3:18 p.m. UTC 
BLKFLSBUF used to be overloaded for the ramdisk driver to free the whole
ramdisk, which was completely different behavior compared to all other
drivers.  But this magic overload got removed in commit ff26956875c2
("brd: remove support for BLKFLSBUF"), so this call is entirely
pointless now.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 init/do_mounts_initrd.c | 9 ---------
 1 file changed, 9 deletions(-)
diff mbox series

Patch

diff --git a/init/do_mounts_initrd.c b/init/do_mounts_initrd.c
index d72beda824aa79..e4f88e9e1c0839 100644
--- a/init/do_mounts_initrd.c
+++ b/init/do_mounts_initrd.c
@@ -115,21 +115,12 @@  static void __init handle_initrd(void)
 	if (!error)
 		printk("okay\n");
 	else {
-		int fd = ksys_open("/dev/root.old", O_RDWR, 0);
 		if (error == -ENOENT)
 			printk("/initrd does not exist. Ignored.\n");
 		else
 			printk("failed\n");
 		printk(KERN_NOTICE "Unmounting old root\n");
 		ksys_umount("/old", MNT_DETACH);
-		printk(KERN_NOTICE "Trying to free ramdisk memory ... ");
-		if (fd < 0) {
-			error = fd;
-		} else {
-			error = ksys_ioctl(fd, BLKFLSBUF, 0);
-			ksys_close(fd);
-		}
-		printk(!error ? "okay\n" : "failed\n");
 	}
 }