[dm-devel] Re: [PATCH 2.6.19 5/5] fs: freeze_bdev with semaphore not mutex

[Alan Cox]

Ar Iau, 2006-11-09 am 22:17 +0100, ysgrifennodd Pavel Machek:
> Why not simply &~ PF_NOFREEZE on that particular process? Filesystems
> are free to use threads/work queues/whatever, but refrigerator should
> mean "no writes to filesystem" for them...

You can't go around altering the flags of another process - what locking
are you relying upon for this ?