Messages in this thread | | | Subject | Re: [PATCH 3.16 0/2] Fix FUSE read/write deadlock on stream-like files | From | Ben Hutchings <> | Date | Sun, 07 Jul 2019 15:03:45 +0100 |
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On Sun, 2019-06-09 at 15:41 +0000, Kirill Smelkov wrote: > Hello stable team, > > Please consider applying the following 2 patches to Linux-3.16 stable > tree. The patches fix regression introduced in 3.14 where both read and > write started to run under lock taken, which resulted in FUSE (and many > other drivers) deadlocks for cases where stream-like files are used with > read and write being run simultaneously. > > Please see complete problem description in upstream commit 10dce8af3422 > ("fs: stream_open - opener for stream-like files so that read and write > can run simultaneously without deadlock"). > > The actual FUSE fix (upstream commit bbd84f33652f "fuse: Add > FOPEN_STREAM to use stream_open()") was merged into 5.2 with `Cc: > stable@vger.kernel.org # v3.14+` mark and is already included into 5.1, > 5.0 and 4.19 stable trees. However for some reason it is not (yet ?) > included into 4.14, 4.9, 4.4, 3.18 and 3.16 trees. > > The patches fix a real problem into which my FUSE filesystem ran, and > which also likely affects OSSPD (full details are in the patches > description). Please consider including the fixes into 3.16 (as well as > into other stable trees - I'm sending corresponding series separately - > - one per tree). [...]
I've queued these up for 3.16, thanks.
Ben.
-- Ben Hutchings Time is nature's way of making sure that everything doesn't happen at once.
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