Linus Torvalds 34d5a4b336 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. -----BEGIN PGP SIGNATURE----- iQJHBAABCgAxFiEEQp8+kY+LLUocC4bMphj1TA10mKEFAl5uQJsTHHRnbHhAbGlu dXRyb25peC5kZQAKCRCmGPVMDXSYoYp4EAC5fr/AyRaIn/AEIZUmoyK6ELUaknfH Z788avxDB/t5GkzC9A2dMpybYi78tzLSAEfB8jYgwbrqExapVtiqvjGZ1RIi3HoN f/DWLnOb2s+yYQ3BQlHu4RdKONEzCqBwKFpElGRv3JzCY8Qeh5cQBzdqzvOEFmYw P7DJVtJRZ2dud7AzJ+xk6KuNIKCT2F7Djmtop6nq1EVw0J/2oYOVgQu76APBj7cj 32srLmpP4xcQiJmWLC5ksXKiZrMPnyNfwXhHFufNvJ2Re6+Wf8mmglqG/5DmA+Ns Sq3L7D7yXwtWQZ8Po1qnWhPDZVXQbWzHyTn4YAMJAK7yoO7mut8jgECt+A8vf4L+ hsc41c6THfdCQQ9gmxLL+c08nZGlmvIC4/1RsihNZ3kd2o4k6Ah9xFp8lBFcpjWd 7tuhakNqJvUOvB34t2AYqzMFbZ/FJG+QNGyIW0bTUn4YIgRPxI/zsdMxqGVBZ4oN 0iuy1kPLGbGAnLU9thkiVMmAyaPesuiB6f+mmzobEUgGI35GrCJi6a4YaTG1sqFn Gl8oPzcU2n+DWbVBfJrVFHJye7oi78kCw6wpNLBCJQp8NP8doAH0Sgspglg52E/p G4GGLz0vGauHBC5wQ3WYiGLImWbzC1dwKdcNE7dhuTgXbhz8ChVlOSU9Fu4+pGpq 6URL6DVTLwDZPg== =e2iB -----END PGP SIGNATURE----- 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		2020-03-15 12:55:52 -07:00
..
acpi	ACPI fixes for 5.6-rc4	2020-02-28 09:02:18 -08:00
asm-generic
clocksource
crypto	crypto: x86/curve25519 - support assemblers with no adx support	2020-03-05 18:28:09 +11:00
drm	drm/dp_mst: Use full_pbn instead of available_pbn for bandwidth checks	2020-03-12 19:07:24 -04:00
dt-bindings
keys
kunit
kvm
linux	Fix for yet another subtle futex issue. The futex code used ihold() to	2020-03-15 12:55:52 -07:00
math-emu
media
misc
net	fib: add missing attribute validation for tun_id	2020-03-03 13:28:48 -08:00
pcmcia
ras
rdma
scsi
soc	net: mscc: ocelot: properly account for VLAN header length when setting MRU	2020-03-09 18:58:17 -07:00
sound	ASoC: Fixes for v5.6	2020-03-07 07:24:36 +01:00
target
trace
uapi	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-03-12 16:19:19 -07:00
vdso
video
xen	xen/xenbus: fix locking	2020-03-05 09:42:23 -06:00