Re: [PATCH 2/9] mm: khugepaged: fix radix tree node leak in shmem collapse error path

2016-11-17 Thread Jan Kara
On Thu 17-11-16 14:11:31, Johannes Weiner wrote: > The radix tree counts valid entries in each tree node. Entries stored > in the tree cannot be removed by simpling storing NULL in the slot or > the internal counters will be off and the node never gets freed again. > > When collapsing a shmem

Re: [PATCH 2/9] mm: khugepaged: fix radix tree node leak in shmem collapse error path

2016-11-17 Thread Jan Kara
On Thu 17-11-16 14:11:31, Johannes Weiner wrote: > The radix tree counts valid entries in each tree node. Entries stored > in the tree cannot be removed by simpling storing NULL in the slot or > the internal counters will be off and the node never gets freed again. > > When collapsing a shmem

Re: [PATCH 2/9] mm: khugepaged: fix radix tree node leak in shmem collapse error path

2016-11-17 Thread Kirill A. Shutemov
On Thu, Nov 17, 2016 at 02:11:31PM -0500, Johannes Weiner wrote: > The radix tree counts valid entries in each tree node. Entries stored > in the tree cannot be removed by simpling storing NULL in the slot or > the internal counters will be off and the node never gets freed again. > > When

Re: [PATCH 2/9] mm: khugepaged: fix radix tree node leak in shmem collapse error path

2016-11-17 Thread Kirill A. Shutemov
On Thu, Nov 17, 2016 at 02:11:31PM -0500, Johannes Weiner wrote: > The radix tree counts valid entries in each tree node. Entries stored > in the tree cannot be removed by simpling storing NULL in the slot or > the internal counters will be off and the node never gets freed again. > > When