Re: [PATCH 0/10 v5] block: Fix block device shutdown related races

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Hello,

Am Donnerstag, 23. März 2017, 01:36:52 BRT schrieb Jan Kara:
> this is a series with the remaining patches (on top of 4.11-rc2) to fix
> several different races and issues I've found when testing device shutdown
> and reuse. The first patch fixes possible (theoretical) problems when
> opening of a block device races with shutdown of a gendisk structure.
> Patches 2-8 fix oops that is triggered by __blkdev_put() calling
> inode_detach_wb() too early (the problem reported by Thiago). Patches 9 and
> 10 fix oops due to a bug in gendisk code where get_gendisk() can return
> already freed gendisk structure (again triggered by Omar's stress test).
> 
> All patches got reviewed by Tejun and also tested by Thiago (thanks!). Jens,
> can you please queue these fixes for the next merge window? Thanks!

Lekshmi tested these patches on top of v4.11-rc4 and they worked fine.
Sorry for the delay, it takes at least 72h of running time to be sure we're 
not hitting the race condition, and I had trouble with v4.11-rc2.

-- 
Thiago Jung Bauermann
IBM Linux Technology Center




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