Hello David: > > Subject: [PATCH] Revert "jffs2: Fix lock acquisition order bug in > > jffs2_write_begin" > > http://article.gmane.org/gmane.linux.drivers.mtd/62951 > > > > This is a patch revising my original patch, which I sent to linux-mtd on > > 10-Nov-2015. I didn't see a response yet, but it's one of the outstanding > > patches above. > > That looks necessary but not sufficient. I think we need this > (untested) patch on top of it, to ensure that we *always* take the page > lock before f->sem? > > Please could you try what's in the tree at > http://git.infradead.org/users/dwmw2/jffs2-fixes.git I have been using a variant of Deng Chao's patch here for a long time, so that one has been tested quite a bit: http://lists.infradead.org/pipermail/linux-mtd/2013-August/048352.html. The problem with that patch was that it modified mm/filemap.c and include/linux/pagemap.h, which we were not too happy about. Your patch looks much simpler, and I will definitely test it. It may take a few days, though, as I have to unearth the test scripts, and find a time slot for testing. Best regards, Thomas Betker -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
