tree c07c789d1a075d460c4effad4acddb1f4fdfee9f
parent ec181b7f30bdae2fbbba1c0dd76aeaad89c7963e
parent 8d67743653dce5a0e7aa500fcccb237cde7ad88e
author Linus Torvalds <torvalds@linux-foundation.org> 1584302152 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1584302152 -0700
mergetag object 8d67743653dce5a0e7aa500fcccb237cde7ad88e
 type commit
 tag locking-urgent-2020-03-15
 tagger Thomas Gleixner <tglx@linutronix.de> 1584283803 +0100
 
 Fix for yet another subtle futex issue. The futex code used ihold() to
 prevent inodes from vanishing, but ihold() does not guarantee inode
 persistence. Replace the inode pointer with a per boot, machine wide,
 unique inode identifier. The second commit fixes the breakage of the hash
 mechanism whihc causes a 100% performance regression.
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Merge tag 'locking-urgent-2020-03-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull futex fix from Thomas Gleixner:
 "Fix for yet another subtle futex issue.

  The futex code used ihold() to prevent inodes from vanishing, but
  ihold() does not guarantee inode persistence. Replace the inode
  pointer with a per boot, machine wide, unique inode identifier.

  The second commit fixes the breakage of the hash mechanism which
  causes a 100% performance regression"

* tag 'locking-urgent-2020-03-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  futex: Unbreak futex hashing
  futex: Fix inode life-time issue