Re: [PATCH] btrfs: make sure we stay inside the bvec during __btrfs_lookup_bio_sums

2016-03-21 Thread Chandan Rajendra
On Monday 21 Mar 2016 11:00:14 Chris Mason wrote: > Hi everyone, > > I realized last week that CONFIG_DEBUG_PAGEALLOC had dropped out of my > config, and hit a crash inside __btrfs_lookup_bio_sums once I enabled it > again. It's hard for this bug to cause problems because Chandan's inner > loop

[PATCH] btrfs: make sure we stay inside the bvec during __btrfs_lookup_bio_sums

2016-03-21 Thread Chris Mason
Hi everyone, I realized last week that CONFIG_DEBUG_PAGEALLOC had dropped out of my config, and hit a crash inside __btrfs_lookup_bio_sums once I enabled it again. It's hard for this bug to cause problems because Chandan's inner loop is always done at the same time the outer loop is done.