Make VOP_LINK return directory still locked and referenced.

Ride 7.99.10 bump.

Replace tmpfs_pool custom allocator code with a simpler layer for memory
accounting. Use wired memory (which can be limited) for meta-data, and
kmem(9) for string allocations.

Close PR/31944. Fix

Replace tmpfs_pool custom allocator code with a simpler layer for memory
accounting. Use wired memory (which can be limited) for meta-data, and
kmem(9) for string allocations.

Close PR/31944. Fix PR/38361 while here. OK ad@.

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Audit kqueue notifications. The reference behavior is taken from MFS and
is represented in the regression tests.

Exporting tmpfs file systems through NFS now works. Sure, file handles are
not persistent across reboots but neither are those of MFS, which we are
trying to replace. We should probably warn the us

Exporting tmpfs file systems through NFS now works. Sure, file handles are
not persistent across reboots but neither are those of MFS, which we are
trying to replace. We should probably warn the user somehow, but not
prevent him doing this if he really wants to.

While here add a "reply" to the code-style change item.

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add one code style and one knote-related item

Synchronize NFS status with reality. After yamt@ changes (I think with the
implementation of getpages and putpages and the use of UBC in the read and
write operations), the worst problem has gone aw

Synchronize NFS status with reality. After yamt@ changes (I think with the
implementation of getpages and putpages and the use of UBC in the read and
write operations), the worst problem has gone away which was a panic when
a file's contents were modified in the original file system and then read
through the NFS mount point.

Also remove the entry about optimization. While tmpfs still has room for
improvement, it has become a lot better lately, thanks to the string pools
and the changes yamt@ did in the anonymous objects handling.

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Fix typo, add missing parenthesis.

Kill the tmpfs(9) manual page; it was just documenting internal details of
tmpfs' "API" and was already rotting.

Instead, merge all the relevant comments into the code. This includes
acknowledgemen

Kill the tmpfs(9) manual page; it was just documenting internal details of
tmpfs' "API" and was already rotting.

Instead, merge all the relevant comments into the code. This includes
acknowledgements to Google's Summer of Code 2005 program (they were in the
AUTHORS section of tmpfs(9) before), so all the files need to be changed
to include this sentence alongside the title. (Note that this was not a
requirement of the program.)

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