Commit Graph

761 Commits

Author SHA1 Message Date
pfg
2df96408cc Replace GPLd headers from the Maestro3 driver with BSD licensed
versions derived from /usr/ports/audio/oss.

The particular headers used were taken from the
attic/drv/oss_allegro directory and are mostly identical
to the previous files.

The Maestro3 driver is now free from the GPL.

NOTE: due to lack of testers this driver is being
considered for deprecation and removal.

PR:		kern/153920
Approved by:	jhb (mentor)
MFC after:	2 weeks
2012-01-20 22:37:10 +00:00
mckusick
af2e331939 Make sure all intermediate variables holding mount flags (mnt_flag)
and that all internal kernel calls passing mount flags are declared
as uint64_t so that flags in the top 32-bits are not lost.

MFC after: 2 weeks
2012-01-17 01:08:01 +00:00
uqs
d61d88a310 Convert files to UTF-8 2012-01-15 13:23:18 +00:00
pfg
42fe35cfd7 Replace GPL'd headers in the emu10kx snd driver code.
This uses the emuxkireg.h already used in the emu10k1
snd driver. Special thanks go to Alexander Motin as
he was able to find some errors and reverse engineer
some wrong values in the emuxkireg header.

The emu10kx driver is now free from the GPL.

PR:		153901
Tested by:	mav, joel
Approved by:	jhb (mentor)
MFC after:	2 weeks
2012-01-11 21:17:14 +00:00
ed
ab210c8f2f Use strchr() and strrchr().
It seems strchr() and strrchr() are used more often than index() and
rindex(). Therefore, simply migrate all kernel code to use it.

For the XFS code, remove an empty line to make the code identical to
the code in the Linux kernel.
2012-01-02 12:12:10 +00:00
ed
0c56cf839d Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.
The SYSCTL_NODE macro defines a list that stores all child-elements of
that node. If there's no SYSCTL_DECL macro anywhere else, there's no
reason why it shouldn't be static.
2011-11-07 15:43:11 +00:00
ed
e97eae1577 Mark MALLOC_DEFINEs static that have no corresponding MALLOC_DECLAREs.
This means that their use is restricted to a single C file.
2011-11-07 06:44:47 +00:00
rwatson
4af919b491 Second-to-last commit implementing Capsicum capabilities in the FreeBSD
kernel for FreeBSD 9.0:

Add a new capability mask argument to fget(9) and friends, allowing system
call code to declare what capabilities are required when an integer file
descriptor is converted into an in-kernel struct file *.  With options
CAPABILITIES compiled into the kernel, this enforces capability
protection; without, this change is effectively a no-op.

Some cases require special handling, such as mmap(2), which must preserve
information about the maximum rights at the time of mapping in the memory
map so that they can later be enforced in mprotect(2) -- this is done by
narrowing the rights in the existing max_protection field used for similar
purposes with file permissions.

In namei(9), we assert that the code is not reached from within capability
mode, as we're not yet ready to enforce namespace capabilities there.
This will follow in a later commit.

Update two capability names: CAP_EVENT and CAP_KEVENT become
CAP_POST_KEVENT and CAP_POLL_KEVENT to more accurately indicate what they
represent.

Approved by:	re (bz)
Submitted by:	jonathan
Sponsored by:	Google Inc
2011-08-11 12:30:23 +00:00
uqs
1eb41d92b5 Fix typo in unused function name
Submitted by:	arundel
2011-05-22 09:58:48 +00:00
rmacklem
fbb8a5e8ec Add a lock flags argument to the VFS_FHTOVP() file system
method, so that callers can indicate the minimum vnode
locking requirement. This will allow some file systems to choose
to return a LK_SHARED locked vnode when LK_SHARED is specified
for the flags argument. This patch only adds the flag. It
does not change any file system to use it and all callers
specify LK_EXCLUSIVE, so file system semantics are not changed.

Reviewed by:	kib
2011-05-22 01:07:54 +00:00
brucec
6d9b42b486 Fix typos - remove duplicate "the".
PR:	bin/154928
Submitted by:	Eitan Adler <lists at eitanadler.com>
MFC after: 	3 days
2011-02-21 09:01:34 +00:00
kib
7980fb6d3a Remove prtactive variable and related printf()s in the vop_inactive
and vop_reclaim() methods. They seems to be unused, and the reported
situation is normal for the forced unmount.

MFC after:   1 week
X-MFC-note:  keep prtactive symbol in vfs_subr.c
2010-11-19 21:17:34 +00:00
kib
4036cd070d The r184588 changed the layout of struct export_args, causing an ABI
breakage for old mount(2) syscall, since most struct <filesystem>_args
embed export_args. The mount(2) is supposed to provide ABI
compatibility for pre-nmount mount(8) binaries, so restore ABI to
pre-r184588.

Requested and reviewed by:	bde
MFC after:    2 weeks
2010-10-10 07:05:47 +00:00
jhb
d4890c88b0 Add dedicated routines to toggle lockmgr flags such as LK_NOSHARE and
LK_CANRECURSE after a lock is created.  Use them to implement macros that
otherwise manipulated the flags directly.  Assert that the associated
lockmgr lock is exclusively locked by the current thread when manipulating
these flags to ensure the flag updates are safe.  This last change required
some minor shuffling in a few filesystems to exclusively lock a brand new
vnode slightly earlier.

Reviewed by:	kib
MFC after:	3 days
2010-08-20 19:46:50 +00:00
trasz
402e3baade Move checking against RLIMIT_FSIZE into one place, vn_rlimit_fsize().
Reviewed by:	kib
2010-05-05 16:44:25 +00:00
lulf
8ab7715033 Bring in the ext2fs work done by Aditya Sarawgi during and after Google Summer
of Code 2009:

- BSDL block and inode allocation policies for ext2fs. This involves the use
  FFS1 style block and inode allocation for ext2fs. Preallocation was removed
  since it was GPL'd.
- Make ext2fs MPSAFE by introducing locks to per-mount datastructures.
- Fixes for kern/122047 PR.
- Various small bugfixes.
- Move out of gnu/ directory.

Sponsored by:   Google Inc.
Submitted by:	Aditya Sarawgi <sarawgi.aditya AT SPAMFREE gmail DOT com>
2010-01-14 14:30:54 +00:00
mbr
7450f52a57 Remove extraneous semicolons, no functional changes.
Submitted by:	Marc Balmer <marc@msys.ch>
MFC after:	1 week
2010-01-07 21:01:37 +00:00
trasz
c74ecb3d07 Remove unused code. 2009-12-03 18:16:14 +00:00
jh
62779a0a26 File flags handling fixes for ext2fs:
- Disallow setting of flags not supported by ext2fs.
- Map EXT2_APPEND_FL to SF_APPEND.
- Map EXT2_IMMUTABLE_FL to SF_IMMUTABLE.
- Map EXT2_NODUMP_FL to UF_NODUMP.

Note that ext2fs doesn't support user settable append and immutable flags.
EXT2_NODUMP_FL is an user settable flag also on Linux.

PR:		kern/122047
Reported by:	Ighighi
Submitted by:	Aditya Sarawgi (original version)
Reviewed by:	bde
Approved by:	trasz (mentor)
2009-11-05 04:51:38 +00:00
rdivacky
56ea66b4d9 Fix the build by using proper format.
Pointy hat: me
Approved by: kib
2009-06-25 16:48:13 +00:00
rdivacky
fdb650857e Switch cmd argument of ioctl to u_long as elsewhere in the kernel.
Propagate this change down the callchain.

Approved by:	kan (maintainer)
Approved by:	ed (mentor)
2009-06-25 08:52:20 +00:00
kib
b8351fcda2 Do not use casts (int *)0 and (struct thread *)0 for the arguments of
vn_rdwr, use NULL.

Reviewed by:	jhb
MFC after:	1 week
2009-06-16 15:13:45 +00:00
kib
754aba6b97 Fix r193923 by noting that type of a_fp is struct file *, not int.
It was assumed that r193923 was trivial change that cannot be done
wrong.

MFC after:	2 weeks
2009-06-10 14:24:31 +00:00
kib
2a37bc559b s/a_fdidx/a_fp/ for VOP_OPEN comments that inline struct vop_open_args
definition.

Discussed with:	bde
MFC after:	2 weeks
2009-06-10 14:09:05 +00:00
stas
cd4e8f2232 - Outindent long printf lines instead of splitting them in the
middle of senetences. This also makes the code more consistent
  with the corresponding FFS code.
- Use 2-space sentences breaks consistently.

Suggested by:	bde
2009-06-07 08:42:26 +00:00
stas
673e1d1fc9 - Remove unused sparc64-bitops.h file. Our ext2fs code doesn't use
sparc64-specific bitops implemetations and relies on generic ones.
  Furthermore, bitops implementations present in sparc64-bitops.h
  are written in C similarly to generic bitops.
2009-06-03 17:30:10 +00:00
stas
25e7b6da03 - Style(9) improvements.
- Convert all K&R definitions to ANSI equialents.
- Retire bsd_malloc and bsd_free macros and
  use malloc/free directly.
- Drop some unused debugging calls.

This commit brings no functional changes.
2009-06-03 14:18:37 +00:00
stas
d6b21c236c - Sync our copies of ext2fs Linux headers to current Linux versions.
Minimize differencies between our ext2fs headers and relevant Linux
  versions by using EXT2_SB macro to access the superblock fields. Most
  of the differencies in access to these fields are now hidden inside
  this macro.
- Rename the s_db_per_group field of ext2fs_sb_info to s_gdb_count
  to reflect the similar change in Linux headers. New name also seem
  to be more appropriate for this field.
- Use proper types for s_first_inode and s_inode_size in-core superblock
  fields. Now they reflec types used in the on-disk superblock version.
- Add support for older filesystem revisions that doesn't have proper
  s_first_ino and s_inode_size fields in the on-disk superblock. In these
  cases predefined values for these fields are used.
- Add simple sanity checks for s_first_inode and s_inode_size correctness.

Reviewed by:	bde (previous version)
MFC after:	2 weeks
2009-06-03 13:25:50 +00:00
kan
35f48e9de6 Remove empty files and do nto try to build them.
Apparently, they are problematic for CTF users.

PR:	119298
Submitted by: Julian H. Stacey
2009-05-18 17:20:24 +00:00
attilio
902219327c FreeBSD right now support 32 CPUs on all the architectures at least.
With the arrival of 128+ cores it is necessary to handle more than that.
One of the first thing to change is the support for cpumask_t that needs
to handle more than 32 bits masking (which happens now).  Some places,
however, still assume that cpumask_t is a 32 bits mask.
Fix that situation by using always correctly cpumask_t when needed.

While here, remove the part under STOP_NMI for the Xen support as it
is broken in any case.

Additively make ipi_nmi_pending as static.

Reviewed by:	jhb, kmacy
Tested by:	Giovanni Trematerra <giovanni dot trematerra at gmail dot com>
2009-05-14 17:43:00 +00:00
attilio
1dcb84131b Remove the thread argument from the FSD (File-System Dependent) parts of
the VFS.  Now all the VFS_* functions and relating parts don't want the
context as long as it always refers to curthread.

In some points, in particular when dealing with VOPs and functions living
in the same namespace (eg. vflush) which still need to be converted,
pass curthread explicitly in order to retain the old behaviour.
Such loose ends will be fixed ASAP.

While here fix a bug: now, UFS_EXTATTR can be compiled alone without the
UFS_EXTATTR_AUTOSTART option.

VFS KPI is heavilly changed by this commit so thirdy parts modules needs
to be recompiled.  Bump __FreeBSD_version in order to signal such
situation.
2009-05-11 15:33:26 +00:00
kib
7ad4235008 Fix two issues with bufdaemon, often causing the processes to hang in
the "nbufkv" sleep.

First, ffs background cg group block write requests a new buffer for
the shadow copy. When ffs_bufwrite() is called from the bufdaemon due
to buffers shortage, requesting the buffer deadlock bufdaemon.
Introduce a new flag for getnewbuf(), GB_NOWAIT_BD, to request getblk
to not block while allocating the buffer, and return failure
instead. Add a flag argument to the geteblk to allow to pass the flags
to getblk(). Do not repeat the getnewbuf() call from geteblk if buffer
allocation failed and either GB_NOWAIT_BD is specified, or geteblk()
is called from bufdaemon (or its helper, see below). In
ffs_bufwrite(), fall back to synchronous cg block write if shadow
block allocation failed.

Since r107847, buffer write assumes that vnode owning the buffer is
locked. The second problem is that buffer cache may accumulate many
buffers belonging to limited number of vnodes. With such workload,
quite often threads that own the mentioned vnodes locks are trying to
read another block from the vnodes, and, due to buffer cache
exhaustion, are asking bufdaemon for help. Bufdaemon is unable to make
any substantial progress because the vnodes are locked.

Allow the threads owning vnode locks to help the bufdaemon by doing
the flush pass over the buffer cache before getnewbuf() is going to
uninterruptible sleep. Move the flushing code from buf_daemon() to new
helper function buf_do_flush(), that is called from getnewbuf().  The
number of buffers flushed by single call to buf_do_flush() from
getnewbuf() is limited by new sysctl vfs.flushbufqtarget.  Prevent
recursive calls to buf_do_flush() by marking the bufdaemon and threads
that temporarily help bufdaemon by TDP_BUFNEED flag.

In collaboration with:	pho
Reviewed by:	 tegge (previous version)
Tested by:	 glebius, yandex ...
MFC after:	 3 weeks
2009-03-16 15:39:46 +00:00
das
ab8f6aab1a Don't declare bin_search() as an inline function, since there's no
inline definition of it.
2009-03-08 06:14:33 +00:00
ed
322413c46c Add memmove() to the kernel, making the kernel compile with Clang.
When copying big structures, LLVM generates calls to memmove(), because
it may not be able to figure out whether structures overlap. This caused
linker errors to occur. memmove() is now implemented using bcopy().
Ideally it would be the other way around, but that can be solved in the
future. On ARM we don't do add anything, because it already has
memmove().

Discussed on:	arch@
Reviewed by:	rdivacky
2009-02-28 16:21:25 +00:00
stas
963ae12224 - Eliminate warnings in debug print macros by explicitly converting all
field to unsigned long.
2009-01-18 15:10:46 +00:00
stas
4bddbf2189 - Whitespace fixes.
- s_bmask field doesn't exist.
- Use correct flags in debug printf.
2009-01-18 14:54:46 +00:00
stas
4a91cd2088 - Obtain inode sizes and location of the first inode based on the contents
of superblock rather than using hardcoded values. This fixes ext2fs on
  filesystems with inode sized other than 128.

Submitted by:	Alex Lyashkov <Alexey.Lyashkov@Sun.COM> (based on)
MFC after:	2 weeks
2009-01-18 14:04:56 +00:00
kib
67a76167a4 Do not incorrectly add the low 5 bits of the offset to the resulting
position of the found zero bit.

Submitted by:	Jaakko Heinonen <jh saunalahti fi>
MFC after:	2 weeks
2009-01-04 15:56:49 +00:00
trasz
b2515a861b According to phk@, VOP_STRATEGY should never, _ever_, return
anything other than 0.  Make it so.  This fixes
"panic: VOP_STRATEGY failed bp=0xc320dd90 vp=0xc3b9f648",
encountered when writing to an orphaned filesystem.  Reason
for the panic was the following assert:
KASSERT(i == 0, ("VOP_STRATEGY failed bp=%p vp=%p", bp, bp->b_vp));
at vfs_bio:bufstrategy().

Reviewed by:	scottl, phk
Approved by:	rwatson (mentor)
Sponsored by:	FreeBSD Foundation
2008-12-16 21:13:11 +00:00
trasz
7f8309245b Adapt to accmode_t changes.
Approved by:	rwatson (mentor), kan
2008-11-14 09:58:16 +00:00
attilio
e1f493235e Improve VFS locking:
- Implement real draining for vfs consumers by not relying on the
  mnt_lock and using instead a refcount in order to keep track of lock
  requesters.
- Due to the change above, remove the mnt_lock lockmgr because it is now
  useless.
- Due to the change above, vfs_busy() is no more linked to a lockmgr.
  Change so its KPI by removing the interlock argument and defining 2 new
  flags for it: MBF_NOWAIT which basically replaces the LK_NOWAIT of the
  old version (which was unlinked from the lockmgr alredy) and
  MBF_MNTLSTLOCK which provides the ability to drop the mountlist_mtx
  once the mnt interlock is held (ability still desired by most consumers).
- The stub used into vfs_mount_destroy(), that allows to override the
  mnt_ref if running for more than 3 seconds, make it totally useless.
  Remove it as it was thought to work into older versions.
  If a problem of "refcount held never going away" should appear, we will
  need to fix properly instead than trust on such hackish solution.
- Fix a bug where returning (with an error) from dounmount() was still
  leaving the MNTK_MWAIT flag on even if it the waiters were actually
  woken up. Just a place in vfs_mount_destroy() is left because it is
  going to recycle the structure in any case, so it doesn't matter.
- Remove the markercnt refcount as it is useless.

This patch modifies VFS ABI and breaks KPI for vfs_busy() so manpages and
__FreeBSD_version will be modified accordingly.

Discussed with:	kib
Tested by:	pho
2008-11-02 10:15:42 +00:00
trasz
0ad8692247 Introduce accmode_t. This is required for NFSv4 ACLs - it will be neccessary
to add more V* constants, and the variables changed by this patch were often
being assigned to mode_t variables, which is 16 bit.

Approved by:	rwatson (mentor)
2008-10-28 13:44:11 +00:00
kib
41033a8f94 Garbage-collect ext2_kqfilter vop that is now a copy of vop_stdkqfilter(). 2008-10-28 12:15:11 +00:00
des
66f807ed8b Retire the MALLOC and FREE macros. They are an abomination unto style(9).
MFC after:	3 months
2008-10-23 15:53:51 +00:00
attilio
b8bf37e585 Remove the struct thread unuseful argument from bufobj interface.
In particular following functions KPI results modified:
- bufobj_invalbuf()
- bufsync()

and BO_SYNC() "virtual method" of the buffer objects set.
Main consumers of bufobj functions are affected by this change too and,
in particular, functions which changed their KPI are:
- vinvalbuf()
- g_vfs_close()

Due to the KPI breakage, __FreeBSD_version will be bumped in a later
commit.

As a side note, please consider just temporary the 'curthread' argument
passing to VOP_SYNC() (in bufsync()) as it will be axed out ASAP

Reviewed by:	kib
Tested by:	Giovanni Trematerra <giovanni dot trematerra at gmail dot com>
2008-10-10 21:23:50 +00:00
kib
a127656dea fdescfs, devfs, mqueuefs, nfs, portalfs, pseudofs, tmpfs and xfs
initialize the vattr structure in VOP_GETATTR() with VATTR_NULL(),
vattr_null() or by zeroing it. Remove these to allow preinitialization
of fields work in vn_stat(). This is needed to get birthtime initialized
correctly.

Submitted by:   Jaakko Heinonen <jh saunalahti fi>
Discussed on:   freebsd-fs
MFC after:	1 month
2008-09-20 19:50:52 +00:00
kib
81d455e702 Initialize va_flags and va_filerev properly in VOP_GETATTR(). Don't
initialize va_vaflags and va_spare because they are not part of the
VOP_GETATTR() API. Also don't initialize birthtime to ctime or zero.

Submitted by:   Jaakko Heinonen <jh saunalahti fi>
Reviewed by:	bde
Discussed on:   freebsd-fs
MFC after:	1 month
2008-09-20 19:46:45 +00:00
kib
039c5da1b2 Garbage-collect vn_write_suspend_wait().
Suggested and reviewed by:	tegge
Tested by:	pho
MFC after:	1 month
2008-09-16 11:09:26 +00:00
sam
05a7094fc1 Make ddb command registration dynamic so modules can extend
the command set (only so long as the module is present):
o add db_command_register and db_command_unregister to add and remove
  commands, respectively
o replace linker sets with SYSINIT's (and SYSUINIT's) that register
  commands
o expose 3 list heads: db_cmd_table, db_show_table, and db_show_all_table
  for registering top-level commands, show operands, and show all operands,
  respectively

While here also:
o sort command lists
o add DB_ALIAS, DB_SHOW_ALIAS, and DB_SHOW_ALL_ALIAS to add aliases
  for existing commands
o add "show all trace" as an alias for "show alltrace"
o add "show all locks" as an alias for "show alllocks"

Submitted by:	Guillaume Ballet <gballet@gmail.com> (original version)
Reviewed by:	jhb
MFC after:	1 month
2008-09-15 22:45:14 +00:00
trasz
9303940ffe Remove VSVTX, VSGID and VSUID. This should be a no-op,
as VSVTX == S_ISVTX, VSGID == S_ISGID and VSUID == S_ISUID.

Approved by:	rwatson (mentor)
2008-09-10 13:16:41 +00:00