genesi/linux-legacy
1
0
Fork 0
mirror of https://github.com/genesi/linux-legacy.git synced 2026-05-18 17:46:45 +00:00
Code Issues Packages Projects Releases Wiki Activity

block: do_mounts - accept root=<non-existant partition>

Browse Source 
Some devices, like md, may create partitions only at first access,
so allow root= to be set to a valid non-existant partition of an
existing disk. This applies only to non-initramfs root mounting.

This fixes a regression from 2.6.24 which did allow this to happen and
broke some users machines :(

Acked-by: Neil Brown <neilb@suse.de>
Tested-by: Joao Luis Meloni Assirati <assirati@nonada.if.usp.br>
Cc: stable <stable@kernel.org>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Kay Sievers
2008-05-06 22:31:33 +02:00
committed by Greg Kroah-Hartman
parent 9604006d28
commit 30f2f0eb4b
3 changed files with 34 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
block/genhd.c
View File

@@ -653,7 +653,7 @@ void genhd_media_change_notify(struct gendisk *disk)
EXPORT_SYMBOL_GPL(genhd_media_change_notify);
#endif /* 0 */
dev_t blk_lookup_devt(const char *name)
dev_t blk_lookup_devt(const char *name, int part)
{
struct device *dev;
dev_t devt = MKDEV(0, 0);
@@ -661,7 +661,11 @@ dev_t blk_lookup_devt(const char *name)
mutex_lock(&block_class_lock);
list_for_each_entry(dev, &block_class.devices, node) {
if (strcmp(dev->bus_id, name) == 0) {
devt = dev->devt;
struct gendisk *disk = dev_to_disk(dev);
if (part < disk->minors)
devt = MKDEV(MAJOR(dev->devt),
MINOR(dev->devt) + part);
break;
}
}
@@ -669,7 +673,6 @@ dev_t blk_lookup_devt(const char *name)
return devt;
}
EXPORT_SYMBOL(blk_lookup_devt);
struct gendisk *alloc_disk(int minors)