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Issue of the Implementation # L0168

Brief

ufs: deadlocks introduced by sb mutex merge

Detailed Description

Commit 0244756edc4b ("ufs: sb mutex merge + mutex_destroy") introduces deadlocks in ufs_new_inode() and ufs_free_inode(). Most callers of that functions acqure the mutex by themselves and ufs_{new,free}_inode() do that via lock_ufs(), i.e we have an unavoidable double lock.

Component

linux-kernel 3.16

Accepted

https://lkml.org/lkml/2014/9/1/618
commit

Status

Fixed in kernel 3.17-rc4

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