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    ufs: sb mutex merge + mutex_destroy · 0244756e
    Fabian Frederick 提交于
    Commit 788257d6 ("ufs: remove the BKL") replaced BKL with mutex
    protection using functions lock_ufs, unlock_ufs and struct mutex 'mutex'
    in sb_info.
    
    Commit b6963327 ("ufs: drop lock/unlock super") removed lock/unlock
    super and added struct mutex 's_lock' in sb_info.
    
    Those 2 mutexes are generally locked/unlocked at the same time except in
    allocation (balloc, ialloc).
    
    This patch merges the 2 mutexes and propagates first commit solution.
    It also adds mutex destruction before kfree during ufs_fill_super
    failure and ufs_put_super.
    
    [akpm@linux-foundation.org: avoid ifdefs, return -EROFS not -EINVAL]
    Signed-off-by: NFabian Frederick <fabf@skynet.be>
    Cc: Evgeniy Dushistov <dushistov@mail.ru>
    Cc: "Chen, Jet" <jet.chen@intel.com>
    Cc: Wu Fengguang <fengguang.wu@intel.com>
    Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
    Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
    0244756e
ialloc.c 9.0 KB