Remove my middle name.

sys: Remove $FreeBSD$: two-line .h pattern

Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/

pseudofs: Microoptimize struct pfs_node

Since 81167243b the size of struct pfs_node is 280 bytes, so the kernel
memory allocator takes memory from 384 bytes sized bucket. However, the
length of the

pseudofs: Microoptimize struct pfs_node

Since 81167243b the size of struct pfs_node is 280 bytes, so the kernel
memory allocator takes memory from 384 bytes sized bucket. However, the
length of the node name is mostly short, e.g., for Linux emulation layer
it is up to 16 bytes. The size of struct pfs_node w/o pfs_name is 152
bytes, i.e., we have 104 bytes left to fit the node name into the 256
bytes-sized bucket.

Reviewed by: des
Differential revision: https://reviews.freebsd.org/D39381
MFC after: 1 month

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Add sbuf streaming mode to pseudofs(9), use in linprocfs(5)

Add a pseudofs node flag 'PFS_AUTODRAIN', which automatically emits sbuf
contents to the caller when the sbuf buffer fills. This is only

Add sbuf streaming mode to pseudofs(9), use in linprocfs(5)

Add a pseudofs node flag 'PFS_AUTODRAIN', which automatically emits sbuf
contents to the caller when the sbuf buffer fills. This is only
permissible if the corresponding PFS node fill function can sleep
whenever it appends to the sbuf.

linprocfs' /proc/self/maps node happens to meet this requirement.
Streaming out the file as it is composed avoids truncating the output
and also avoids preallocating a very large buffer.

Reviewed by: markj; earlier version: emaste, kib, trasz
Differential Revision: https://reviews.freebsd.org/D27047

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Merge ^/head r352319 through r352435.

Make pseudofs(9) create directory entries in order, instead
of the reverse.

This fixes Linux sysctl(8) binary - it assumes the first two
directory entries are always "." and "..". There might be oth

Make pseudofs(9) create directory entries in order, instead
of the reverse.

This fixes Linux sysctl(8) binary - it assumes the first two
directory entries are always "." and "..". There might be other
Linux apps affected by this.

NB it might be a good idea to rewrite it using queue(3).

Reviewed by: kib
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D21550

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MFhead@r344527

Merge ^/head r344178 through r344512.

PFS: Bump NAMELEN and don't require clients to be sleepable

- debugfs consumers expect to be able to export names more than 48 characters

- debugfs consumers expect to be able to hold locks across

PFS: Bump NAMELEN and don't require clients to be sleepable

- debugfs consumers expect to be able to export names more than 48 characters

- debugfs consumers expect to be able to hold locks across calls and are able
to handle allocation failures

Reviewed by: hps@
MFC after: 1 week
Sponsored by: iX Systems
Differential Revision: https://reviews.freebsd.org/D19256

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Make it easier for filesystems to count themselves as jail-enabled,
by doing most of the work in a new function prison_add_vfs in kern_jail.c
Now a jail-enabled filesystem need only mark itself with

Make it easier for filesystems to count themselves as jail-enabled,
by doing most of the work in a new function prison_add_vfs in kern_jail.c
Now a jail-enabled filesystem need only mark itself with VFCF_JAIL, and
the rest is taken care of. This includes adding a jail parameter like
allow.mount.foofs, and a sysctl like security.jail.mount_foofs_allowed.
Both of these used to be a static list of known filesystems, with
predefined permission bits.

Reviewed by: kib
Differential Revision: D14681

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sys/fs: further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error

sys/fs: further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

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Merge ^/head r323559 through r325504.

MFhead@r324884

Delete declarations of struct pfs_bitmap, removed in r143841.

MFC after: 1 week

MFhead@r322451

Merge ^/head r321383 through r322397.

MFhead@r322057

Bump the maximum file name length in pseudofs filesystems to 48.

The previous limit of 24 was somewhat restrictive, and with this change
ceil(log2(sizeof(struct pfs_node))) is the same as before in

Bump the maximum file name length in pseudofs filesystems to 48.

The previous limit of 24 was somewhat restrictive, and with this change
ceil(log2(sizeof(struct pfs_node))) is the same as before in both the ILP32
and LP64 models, so the malloc zone used for allocations of struct pfs_node
is the same as before.

Approved by: des

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MFhead@r320180

Merge ^/head r319973 through 321382.

Merge ^/head r320042 through r320397.

PFS_DELEN is the sum of the permanent part of the struct dirent and
fixed size for the name buffer PFS_NAMELEN.
As r318736 was commited (ino64 project) the size of the permanent part
of the struct di

PFS_DELEN is the sum of the permanent part of the struct dirent and
fixed size for the name buffer PFS_NAMELEN.
As r318736 was commited (ino64 project) the size of the permanent part
of the struct dirent was changed, so calulate PFS_DELEN properly.

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Merge ^/head r303250 through r304235.

Remove Giant asserts. Update comment.

Owning Giant in the init/uninit is accidental due to the moment where
VFS modules initialization is performed, and is not enforced by the
VFS interface. The G

Remove Giant asserts. Update comment.

Owning Giant in the init/uninit is accidental due to the moment where
VFS modules initialization is performed, and is not enforced by the
VFS interface. The Giant lock does not prevent a parallel execution
of the code, it is VFS which implements the proper protocol.

Approved by: des (pseudofs maintainer)
Sponsored by: The FreeBSD Foundation
MFC after: 1 week

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Some style changes. Fix a typo in comment.

Approved by: des (pseudofs maintainer)
Sponsored by: The FreeBSD Foundation
MFC after: 1 week