On Thu, Oct 18, 2018 at 04:23:13PM -0400, Josef Bacik wrote:
> From: Johannes Weiner
>
> Reads can take a long time, and if anybody needs to take a write lock on
> the mmap_sem it'll block any subsequent readers to the mmap_sem while
> the read is outstanding, which could cause long delays. Inst
From: Johannes Weiner
Reads can take a long time, and if anybody needs to take a write lock on
the mmap_sem it'll block any subsequent readers to the mmap_sem while
the read is outstanding, which could cause long delays. Instead drop
the mmap_sem if we do any reads at all.
Signed-off-by: Johann
