[PATCH v5 03/22] cachefiles: introduce on-demand read mode

[David Howells]

Matthew Wilcox <willy at infradead.org> wrote:

> Why do you have a separate rwlock when the xarray already has its own
> spinlock?  This is usually a really bad idea.

Jeffle wants to hold a lock across the CACHEFILES_DEAD check and the xarray
access.

However, he tells xarray to do a GFP_KERNEL alloc whilst holding the rwlock:-/

David