Linux kernel 3.15 has been released. This release resumes much faster in systems with hard disks, it adds support for cross-renaming two files atomically, it adds new fallocate(2) modes that allow to remove the range of a file or set it to zero, it adds a new file locking API, the memory management adapts better to working set size changes, it improves FUSE write performance, it adds support for the LZ4 algorithm in the zram memory compressor, it allows to load 64-bit kernels from 32-bit EFI firmware, it adds support for x86 AVX-512 vector instructions; it also adds new drivers; and many other small improvements. Here's the full list of changes.
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