The 4.5 kernel has been released

Linus has released the 4.5 kernel. "So this is later on a Sunday than my usual schedule, because I just couldn't make up my mind whether I should do another rc8 or not, and kept just waffling about it. In the end, I obviously decided not to, but it could have gone either way." Some of the headline features from the development cycle are dm-verity forward error correction, optional mandatory locking, the new copy_file_range() system call, the SOCK_DESTROY operation, another set of persistent-memory improvements, extended address-space layout randomization on 32-bit systems, the MADV_FREE option for madvise(), the UBSAN checker tool, some extensions to epoll_wait(), project quotas for the ext4 filesystem, and more.

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