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|ee9b37ae||mjg||Feb. 21, 2021, 9:05 p.m.||jail: fix build after the previous commit|
|f7496dca||jamie||Feb. 21, 2021, 6:55 p.m.||jail: Change the locking around pr_ref and pr_uref
Require both the prison mutex and allprison_lock when pr_ref or pr_uref go to/from zero. Adding a non-first or removing a non-last reference remain lock-free. This means that a shared hold on allprison_lock is sufficient for prison_isalive() to be useful, which removes a number of cases of lock/check/unlock on the prison mutex. Expand the locking in kern_jail_set() to keep allprison_lock held exclusive until the new prison is valid, thus making invalid prisons invisible to any thread holding allprison_lock (except of course the one creating or destroying the prison). This renders prison_isvalid() nearly redundant, now used only in asserts. Differential Revision: https://reviews.freebsd.org/D28419 Differential Revision: https://reviews.freebsd.org/D28458cgit
|b963ce45||tuexen||Feb. 21, 2021, 4:13 p.m.||sctp: improve computation of an alternate net
Espeially handle the case where the net passed in is about to be deleted and therefore not in the list of nets anymore. MFC after: 3 days Reported by: email@example.com
|5ac83902||tuexen||Feb. 21, 2021, 12:06 p.m.||sctp: clear a pointer to a net which will be removed
MFC after: 3 dayscgit
|8b723968||kib||Feb. 21, 2021, 9:38 a.m.||ext2fs: clear write cluster tracking on truncation|
|2bfd8992||kib||Feb. 21, 2021, 9:38 a.m.||vnode: move write cluster support data to inodes.
The data is only needed by filesystems that 1. use buffer cache 2. utilize clustering write support. Requested by: mjg Reviewed by: asomers (previous version), fsu (ext2 parts), mckusick Tested by: pho Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D28679cgit
|d485c77f||kib||Feb. 21, 2021, 9:38 a.m.||Remove #define _KERNEL hacks from libprocstat
Make sys/buf.h, sys/pipe.h, sys/fs/devfs/devfs*.h headers usable in userspace, assuming that the consumer has an idea what it is for. Unhide more material from sys/mount.h and sys/ufs/ufs/inode.h, sys/ufs/ufs/ufsmount.h for consumption of userspace tools, with the same caveat. Remove unacceptable hack from usr.sbin/makefs which relied on sys/buf.h being unusable in userspace, where it override struct buf with its own definition. Instead, provide struct m_buf and struct m_vnode and adapt code to use local variants. Reviewed by: mckusick Tested by: pho Sponsored by: The FreeBSD Foundation Differential revision: https://reviews.freebsd.org/D28679cgit
|750ea20d||kib||Feb. 21, 2021, 9:38 a.m.||Delete dead CLUSTERDEBUG config option.|
|e6bb49f1||bapt||Feb. 21, 2021, 5:09 a.m.||pci_vendors: update to 2021.02.20|
|c9cb66f0||bapt||Feb. 21, 2021, 5:06 a.m.||termcap: add an entry for the foot terminal
MFC after: 3 dayscgit
|81174cd8||mjg||Feb. 21, 2021, 12:43 a.m.||vfs: employ vfs_ref_from_vp in statfs and fstatfs|
|a15f787a||mjg||Feb. 21, 2021, 12:43 a.m.||vfs: add vfs_ref_from_vp|
|5fa12fe0||mjg||Feb. 21, 2021, 12:43 a.m.||amd64: implement strlen in assembly, take 2
Tested with glibc test suite. The C variant in libkern performs excessive branching to find the zero byte instead of using the bsfq instruction. The same code patched to use it is still slower than the routine implemented here as the compiler keeps neglecting to perform certain optimizations (like using leaq). On top of that the routine can be used as a starting point for copyinstr which operates on words intead of bytes. The previous attempt had an instance of swapped operands to andq when dealing with fully aligned case, which had a side effect of breaking the code for certain corner cases. Noted by jrtc27. Sample results: $(perl -e "print 'A' x 3"): stock: 211198039 patched:338626619 asm: 465609618 $(perl -e "print 'A' x 100"): stock: 83151997 patched: 98285919 asm: 120719888 Reviewed by: jhb, kib Differential Revision: https://reviews.freebsd.org/D28779cgit
|6e1d1bfc||jamie||Feb. 20, 2021, 10:38 p.m.||jail: Improve locking when removing prisons|
|a8e431e1||rscheff||Feb. 20, 2021, 7:11 p.m.||PRR: use accurate rfc6675_pipe when enabled|