leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

initrd: remove the BLKFLSBUF call in handle_initrd

Browse Source 
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 ff26956875
("brd: remove support for BLKFLSBUF"), so this call is entirely
pointless now.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Christoph Hellwig 2020-06-07 17:40:30 +02:00
parent c8376994c8
commit 899ac10cc0
1 changed files with 0 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
init/do_mounts_initrd.c
View File

@ -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");
}
}