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See "man memfd_create" for more information of what memfd is. This adds support for memfd open files, that are not not memory mapped. * We add a new kind of file: MEMFD. * We add two image types MEMFD_FILE, and MEMFD_INODE. MEMFD_FILE contains usual file information (e.g., position). MEMFD_INODE contains the memfd name, and a shmid identifier referring to the content. * We reuse the shmem facilities for dumping memfd content as it would be easier to support incremental checkpoints in the future. Signed-off-by: Nicolas Viennot <Nicolas.Viennot@twosigma.com> |
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