Commit Graph

566 Commits

Author SHA1 Message Date
Poul-Henning Kamp
4d453ef101 Properly vector all bwrite() and BUF_WRITE() calls through the same path
and s/BUF_WRITE()/bwrite()/ since it now does the same as bwrite().
2004-03-11 18:02:36 +00:00
Poul-Henning Kamp
2b348f7429 Remove unused mnt_reservedvnlist field. 2004-03-11 16:59:57 +00:00
Poul-Henning Kamp
651b11eaf2 Remove unused second arg to vfinddev().
Don't call addaliasu() on VBLK nodes.
2004-03-11 16:33:11 +00:00
Tim J. Robbins
3722550aa6 Enforce the file size limit in VOP_WRITE() as well as VOP_TRUNCATE();
pointed out by bde.
2004-02-19 09:06:06 +00:00
Tim J. Robbins
ba122e68e0 Add partial support for large (>4GB) files on ext2 filesystems. This
support is partial in that it will refuse to create large files on
filesystems that haven't been upgraded to EXT2_DYN_REV or that don't
have the EXT2_FEATURE_RO_COMPAT_LARGE_FILE flag set in the superblock.

MFC after:	2 weeks
2004-02-18 14:08:25 +00:00
Bruce Evans
053791db10 Fixed misspellings of "ext2_*" as "ufs_*" and " "ext2fs_*", and of
"independent" as "dependent" Fixed some other relatively minor wording
and formatting errors.
2004-02-15 08:19:42 +00:00
Bruce Evans
175aef1cdb Removed support for the unsupported option READONLY. It just forced
dishonoring of requests for read-write mounts.
2004-02-15 07:15:58 +00:00
Bruce Evans
2211aa126a MFffs (ffs_vfsops.c 1.76 (part of the big soft updates commit): lock
the vnode around calls to vinvalbuf()).  Apparently no one has tested
ext2fs with DEBUG_VOP_LOCKS.  Vnode locking for vinvalbuf() might not
be required in non-soft-updates cases, but it is now asserted.

MFffs (uncommitted related and nearby cleanups: don't unlock the vnode
after vinvalbuf() only to have to relock it almost immediately; don't
refer to devices classified by vn_isdisk() as block devices).
2004-02-13 20:23:16 +00:00
Bruce Evans
e7a4845084 Fixed longstanding brokenness of inode updates. The waitfor flag was
dishonored in rev.1.1 by commenting out the code that honored it.  This
gave the worst disadvantages of async mounts in an uncontrollable way.

Honoring the flag costs about 50% in real time in worst cases on a new
but not very fast ATA drive with write caching (probably more on drives
without write caching).  The old misbehavior can be recovered using
async mounts after implementing them in mount_ext2fs(8) (just put the
MNT_ASYNC flag in mount_ext2fs's table of supported options like it
is in mount's table).
2004-02-13 17:49:03 +00:00
Bruce Evans
67406320ff MFffs (ffs_vfsops.c 1.227: clean up open mode bandaid). This reduces
gratuitous differences with ffs a little.
2004-02-12 17:54:58 +00:00
John Baldwin
91d5354a2c Locking for the per-process resource limits structure.
- struct plimit includes a mutex to protect a reference count.  The plimit
  structure is treated similarly to struct ucred in that is is always copy
  on write, so having a reference to a structure is sufficient to read from
  it without needing a further lock.
- The proc lock protects the p_limit pointer and must be held while reading
  limits from a process to keep the limit structure from changing out from
  under you while reading from it.
- Various global limits that are ints are not protected by a lock since
  int writes are atomic on all the archs we support and thus a lock
  wouldn't buy us anything.
- All accesses to individual resource limits from a process are abstracted
  behind a simple lim_rlimit(), lim_max(), and lim_cur() API that return
  either an rlimit, or the current or max individual limit of the specified
  resource from a process.
- dosetrlimit() was renamed to kern_setrlimit() to match existing style of
  other similar syscall helper functions.
- The alpha OSF/1 compat layer no longer calls getrlimit() and setrlimit()
  (it didn't used the stackgap when it should have) but uses lim_rlimit()
  and kern_setrlimit() instead.
- The svr4 compat no longer uses the stackgap for resource limits calls,
  but uses lim_rlimit() and kern_setrlimit() instead.
- The ibcs2 compat no longer uses the stackgap for resource limits.  It
  also no longer uses the stackgap for accessing sysctl's for the
  ibcs2_sysconf() syscall but uses kernel_sysctl() instead.  As a result,
  ibcs2_sysconf() no longer needs Giant.
- The p_rlimit macro no longer exists.

Submitted by:	mtm (mostly, I only did a few cleanups and catchups)
Tested on:	i386
Compiled on:	alpha, amd64
2004-02-04 21:52:57 +00:00
Tim J. Robbins
3215f33192 Copy workaround from FFS: open device for write access even if
the user requests a read-only mount. This is necessary because we
don't do the VOP_OPEN again if they upgrade a read-only mount to
read-write.

Noticed by:	bde
2004-01-24 08:43:06 +00:00
Alexander Kabaev
6bd39fe978 Spell magic '16' number as IO_SEQSHIFT. 2004-01-19 20:03:43 +00:00
David E. O'Brien
076fcd1776 This commit was generated by cvs2svn to compensate for changes in r124361,
which included commits to RCS files with non-trunk default branches.
2004-01-11 03:34:02 +00:00
David E. O'Brien
fbee6927b8 Vendor import emu10k1.h from version 1.0.1 of the ALSA driver.
ftp://ftp.alsa-project.org/pub/driver/alsa-driver-1.0.1.tar.bz2
  or http://www.alsa-project.org/alsa/cvs/alsa-kernel/include/emu10k1.h
2004-01-11 03:34:02 +00:00
David E. O'Brien
2511c244ad Sync with Creative's 8010.h rev 1.51. 2004-01-09 06:38:11 +00:00
David E. O'Brien
a554deb2a8 Dike out some very Linux-specific parts that we can't compile with.
Also protect AC97_MUTE which is also defined in our own ac97.h.
2004-01-09 05:08:32 +00:00
David E. O'Brien
fca6c85647 Vendor import revision 1.9 of ac97_codec.h (we renamed the file) from
http://cvs.sourceforge.net/viewcvs.py/emu10k1/emu10k1/ac97_codec.h
2004-01-09 05:05:04 +00:00
David E. O'Brien
03adcebca3 This commit was generated by cvs2svn to compensate for changes in r124273,
which included commits to RCS files with non-trunk default branches.
2004-01-09 05:05:04 +00:00
Bruce Evans
6e347ed298 Fixed a reference to a nonexistent variable in previous commit. Renaming
of ffs_reload()'s mountp parameter to mp in rev.1.28 of ffs_vnops.c
had not been merged here.

ext2fs_reload() is still missing locking from not merging other changes
to ffs_reload(), but none of these is related to recent locking changes.
2003-11-05 11:56:58 +00:00
Alexander Kabaev
ca430f2e92 Remove mntvnode_mtx and replace it with per-mountpoint mutex.
Introduce two new macros MNT_ILOCK(mp)/MNT_IUNLOCK(mp) to
operate on this mutex transparently.

Eventually new mutex will be protecting more fields in
struct mount, not only vnode list.

Discussed with: jeff
2003-11-05 04:30:08 +00:00
Marcel Moolenaar
63e69c75fb Remove alpha-bitops.h now that it's unused. It's in the attic if
we want it again.
2003-11-03 07:10:53 +00:00
Alexander Kabaev
45d45c6cde Use VOP_UNLOCK/vrele instead of vput. td was erecived as a parameter
and one cannot be sure it is equal to curthread.
2003-11-03 04:46:19 +00:00
Alexander Kabaev
cb9ddc80ae Take care not to call vput if thread used in corresponding vget
wasn't curthread, i.e. when we receive a thread pointer to use
as a function argument. Use VOP_UNLOCK/vrele in these cases.

The only case there td != curthread known at the moment is
boot() calling sync with thread0 pointer.

This fixes the panic on shutdown people have reported.
2003-11-02 04:52:53 +00:00
Alexander Kabaev
492c1e68fb Temporarily undo parts of the stuct mount locking commit by jeff.
It is unsafe to hold a mutex across vput/vrele calls.

This will be redone when a better locking strategy is agreed upon.

Discussed with: jeff
2003-11-01 05:51:54 +00:00
Marcel Moolenaar
3c6441a736 Fix the alpha tinderbox. The alpha specific bitops used by the bitmap
code has the typical branch prediction detour, which creates cross-
section branches. A LINT kernel is apparently large enough nowadays
that the .text and .text2 sections cannot always be layed-out so that
branches between them reach.
The fix is to stop using the alpha-specific bitops and instead use
the portable implementation used by all platforms other than alpha
and i386.
2003-10-29 07:35:53 +00:00
Poul-Henning Kamp
2c18019f14 DuH!
bp->b_iooffset (the spot on the disk), not bp->b_offset (the offset in
the file)
2003-10-18 14:10:28 +00:00
Poul-Henning Kamp
60efe2c932 Initialize bp->b_offset before calling VOP_[SPEC]STRATEGY() 2003-10-18 11:08:04 +00:00
Jeff Roberson
6acdfd69be - File systems that wish to inspect the vnode contents or their private
v_data field before calling vget/vn_lock must check VI_XLOCK manually to
   be sure that v_data is still valid.  Implement this check in two places
   here.
2003-10-05 06:43:03 +00:00
Jeff Roberson
fcde834c1f - Don't cache_purge() in ext2_reclaim. vclean() does it for us so
this is redundant.
2003-10-05 02:44:22 +00:00
Jeff Roberson
80cd3a0804 - Don't use vrecycle() call vgonel() directly after grabing the vnode
interlock.  We do this so that we still hold the interlock when we lock
   the vnode later.  This prevents races with the mnt vnode list.
2003-10-04 16:09:40 +00:00
Jeff Roberson
7637e5854b - Clean-up comments that refer to the use of B_LOCKED. 2003-08-28 00:56:39 +00:00
Jeff Roberson
7abc12de03 - In LCK_BUF() simply change the owner of the buf to the kernel.
- In ULCK_BUF we no longer need to acquire the lock, just write the buf out.
 - The combination of these changes eliminates one more use of B_LOCKED which
   is in the way of making the buffer cache SMP safe.  In the long term
   ext2fs should probably not try to optimize the use of their metadata bufs
   with a private cache.  This will starve the rest of the system for buffers
   in the extreme case.

Discussed with:	bde (A long time ago..)
Tested on:	md disk/x86
2003-08-28 00:52:23 +00:00
Marcel Moolenaar
cc56683de7 Change of plans: Add ext2_bitops.h with generic and portable
implementations. Use those on platforms that don't have MD
headers. Remove the ia64 MD header. We're going to use the C
implementation there.

Suggested by: bde
2003-08-25 01:39:47 +00:00
Marcel Moolenaar
fcf18c7375 Add compilation support for extfs on ia64, primarily to support LINT.
The functions in ia64-bitops.h merely call panic() for now. They need
to be implemented some day, just not today.
2003-08-23 03:58:11 +00:00
Poul-Henning Kamp
a8d43c90af Add a "int fd" argument to VOP_OPEN() which in the future will
contain the filedescriptor number on opens from userland.

The index is used rather than a "struct file *" since it conveys a bit
more information, which may be useful to in particular fdescfs and /dev/fd/*

For now pass -1 all over the place.
2003-07-26 07:32:23 +00:00
Peter Wemm
a35b33869d Initiate de-orbit burn for fpu-less operation. 386+387 is still
theoretically supportable, but you'd really be happier with FreeBSD 2.1.8
on it.
2003-07-22 08:11:17 +00:00
Poul-Henning Kamp
cefb5754dd Add the same KASSERT to all VOP_STRATEGY and VOP_SPECSTRATEGY implementations
to check that the buffer points to the correct vnode.
2003-06-15 18:53:00 +00:00
Poul-Henning Kamp
7652131bee Initialize struct vfsops C99-sparsely.
Submitted by:   hmp
Reviewed by:	phk
2003-06-12 20:48:38 +00:00
David E. O'Brien
dfbebb8f61 Vendor import emu10k1.h from version 0.9.4 of the ALSA driver (which
includes some needed Audigy support).  This can be found at
ftp://ftp.alsa-project.org/pub/driver/alsa-driver-0.9.4.tar.bz2
and http://www.alsa-project.org/alsa/cvs/alsa-kernel/include/emu10k1.h
2003-06-07 20:54:30 +00:00
David E. O'Brien
1021f44ab9 This commit was generated by cvs2svn to compensate for changes in r115990,
which included commits to RCS files with non-trunk default branches.
2003-06-07 20:54:30 +00:00
Poul-Henning Kamp
5eed219cef Remove extra ';'
Found by:       FlexeLint
2003-05-31 18:52:38 +00:00
David E. O'Brien
318444e86f Vendor import revision 1.8 of ac97_codec.h (we renamed the file) from
http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/emu10k1/emu10k1/ac97_codec.h
2003-04-21 02:27:52 +00:00
David E. O'Brien
915dbb90f2 This commit was generated by cvs2svn to compensate for changes in r113778,
which included commits to RCS files with non-trunk default branches.
2003-04-21 02:27:52 +00:00
David E. O'Brien
b18e94c0ba Vendor import revision 1.51 of 8010.h (we renamed the file) from
http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/emu10k1/emu10k1/8010.h.
This includes some Audigy support.
2003-04-18 04:17:08 +00:00
David E. O'Brien
aca6bb0d8c Sync with Creative's 8010.h rev 1.39. 2003-04-18 04:13:38 +00:00
David E. O'Brien
11e9b2d70a Vendor import revision 1.39 of 8010.h (we renamed the file) from
http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/emu10k1/emu10k1/8010.h.
Rev 1.39 best matches our rev 1.3.
2003-04-18 03:57:22 +00:00
John Baldwin
8804bf6b03 Use local struct proc variables to reduce repeated td->td_proc dereferences
and improve readability.
2003-04-17 22:02:47 +00:00
Jeff Roberson
f5f0dee483 - Lock the buf before clearing flags. 2003-03-13 07:07:16 +00:00
Jeff Roberson
7261f5f68e - Add a new 'flags' parameter to getblk().
- Define one flag GB_LOCK_NOWAIT that tells getblk() to pass the LK_NOWAIT
   flag to the initial BUF_LOCK().  This will eventually be used in cases
   were we want to use a buffer only if it is not currently in use.
 - Convert all consumers of the getblk() api to use this extra parameter.

Reviwed by:	arch
Not objected to by:	mckusick
2003-03-04 00:04:44 +00:00