Messages in this thread | | | Date | Wed, 23 Jul 2014 15:30:28 +0300 | From | "Kirill A. Shutemov" <> | Subject | Re: [PATCH v8 00/22] Support ext4 on NV-DIMMs |
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On Tue, Jul 22, 2014 at 03:47:48PM -0400, Matthew Wilcox wrote: > One of the primary uses for NV-DIMMs is to expose them as a block device > and use a filesystem to store files on the NV-DIMM. While that works, > it currently wastes memory and CPU time buffering the files in the page > cache. We have support in ext2 for bypassing the page cache, but it > has some races which are unfixable in the current design. This series > of patches rewrite the underlying support, and add support for direct > access to ext4.
Matthew, as discussed before, your patchset make exessive use of i_mmap_mutex. Are you going to address this later? Or what's the plan?
-- Kirill A. Shutemov
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