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Btrfs: make sure we update latest_bdev
authorChris Mason <chris.mason@oracle.com>
Tue, 21 Feb 2012 01:53:43 +0000 (20:53 -0500)
committerChris Mason <chris.mason@oracle.com>
Thu, 23 Feb 2012 15:43:45 +0000 (10:43 -0500)
commita6b0d5c8dbfd428717fc4db4c36757783f391c7b
treefc3faaed8b1cf93c7dbe60af4c950be5edd9c8adtree
parentfe66a05a06795bd3b788404d69ea7709f46a1609commit | diff
Btrfs: make sure we update latest_bdev

When we are setting up the mount, we close all the
devices that were not actually part of the metadata we found.

But, we don't make sure that one of those devices wasn't
fs_devices->latest_bdev, which means we can do a use after free
on the one we closed.

This updates latest_bdev as it goes.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
fs/btrfs/disk-io.c diff | blob | history
fs/btrfs/volumes.c diff | blob | history
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