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ubports_kernel_google_msm/fs/btrfs
Liu Bo 15d1ff8111 Btrfs: fix deadlock during allocating chunks
This deadlock comes from xfstests 251.

We'll hold the chunk_mutex throughout the whole of a chunk allocation.
But if we find that we've used up system chunk space, we need to allocate a
new system chunk, but this will lead to a recursion of chunk allocation and end
up with a deadlock on chunk_mutex.
So instead we need to allocate the system chunk first if we find we're in ENOSPC.

Signed-off-by: Liu Bo <liubo2009@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2012-03-29 09:57:44 -04:00
..
2011-07-26 16:49:47 -07:00
2012-01-16 22:04:49 +02:00
2011-10-20 18:10:50 +02:00