Commit Graph

912 Commits

Author SHA1 Message Date
Semen Ustimenko
13866b3fd2 Fix a typo in my recently added comment: s/beleived/believed/
Submitted by:	keramida
2002-06-06 20:43:03 +00:00
Alfred Perlstein
ba5a4d6c02 Backout/modify previous revision:
"empty default cases shouldn't be removed, they should have a break;
  statement added to them."

Requested by: billf
2002-06-01 20:54:21 +00:00
Alfred Perlstein
37e1dd483d Silence warnings, remove some empty 'default' switch cases. 2002-06-01 20:40:42 +00:00
Semen Ustimenko
f576a00d1b Remove lock from ffs_vget introduced by v1.24. Instead of locking the
vnode creation globaly, we allow processes to create vnodes concurently.
In case of concurent creation of vnode for the one ino, we allow processes
to race and then check who wins.

Assuming that concurent creation of vnode for same ino is really rare case,
this is belived to be an improvement, as it just allows concurent creation
of vnodes.

Idea by:	bp
Reviewed by:	dillon
MFC after:	1 month
2002-05-30 22:04:17 +00:00
Robert Watson
2bab796d96 Remove IFS from 5.0-CURRENT. This facilitates introducing UFS2 as
IFS had its fingers deep in the belly of the UFS/FFS split.  IFS
will be reimplemented by the maintainer at a later date.

Requested by:	adrian (maintainer)
2002-05-19 00:11:08 +00:00
Ian Dowse
ed6ca8732c Fix two casts to "daddr_t *" that should have been "ufs_daddr_t *". 2002-05-18 19:03:00 +00:00
Ian Dowse
e116910b8d Fix a typo where sizeof(daddr_t) was specified instead of sizeof(doff_t).
Now that daddr_t is 64-bit, this caused hash blocks to be allocated
twice as large as they need to be.
2002-05-18 18:58:27 +00:00
Ian Dowse
00b162d018 Remove um_i_effnlink_valid, i_spare[] and the ufsmount_u and inode_u
unions, since these were only necessary when ext2fs used ufs code.

Reviewed by:	mckusick
2002-05-18 18:51:14 +00:00
Poul-Henning Kamp
8fdbc99b69 Fix ufs_daddr_t/daddr_t type problems.
Sponsored by:	DARPA & NAI labs.
2002-05-17 18:59:53 +00:00
Poul-Henning Kamp
c7ffbdd995 Call ufs_bmaparray() with right parameter type.
Sponsored by: DARPA & NAI Labs.
2002-05-17 18:53:29 +00:00
Tom Rhodes
d394511de3 More s/file system/filesystem/g 2002-05-16 21:28:32 +00:00
Poul-Henning Kamp
98b0c78978 Make daddr_t and u_daddr_t 64bits wide.
Retire daddr64_t and use daddr_t instead.

Sponsored by:	DARPA & NAI Labs.
2002-05-14 11:09:43 +00:00
Poul-Henning Kamp
05f4ff5da1 Remove register keyword.
Sponsored by:	DARPA & NAI Labs.
Submitted by:	mckusick
2002-05-13 09:22:31 +00:00
Poul-Henning Kamp
2b2df79fad Remove two "register" and a blank line.
Submitted by:	mckusick
Sponsored by:	DARPA & NAI Labs.
2002-05-12 22:54:48 +00:00
Poul-Henning Kamp
7110af7577 ARGH! SBLOCK is not unused. Try to get this right.
BBSIZE belongs in <sys/disklabel.h> (but shouldn't be a constant).

Define SBLOCK again, using the right math.

Sponsored by: DARPA & NAI Labs.
2002-05-12 20:21:40 +00:00
Poul-Henning Kamp
7cb71b749c Remove #define for BBOFF, it is assumed == 0 so many places that we might
as well forget about it.  In fact the only thing which used it was the
SBOFF macro.

Sponsored by: DARPA & NAI Labs.
2002-05-12 20:00:21 +00:00
Poul-Henning Kamp
16910634dd Remove unused BBLOCK and SBLOCK #defines.
Sponsored by: DARPA & NAI Labs.
2002-05-12 19:56:31 +00:00
Alan Cox
c0b6bbb80b o Condition the compilation and use of vm_freeze_copyopts()
on ENABLE_VFS_IOOPT.
2002-05-06 05:45:57 +00:00
Poul-Henning Kamp
d08961bec3 Move some UFS related stuff home where it belongs. 2002-05-05 20:04:33 +00:00
Jeff Roberson
5df148630f Include systm.h so panic(9) is defined when doing DEBUG_ALL_VFS_LOCKS. 2002-05-04 02:40:37 +00:00
Poul-Henning Kamp
afe564a200 Name ufs_vop_[gs]etextattr() consistently with the rest of our VOPs and
put then in the ufs_vnops where they belong, rather than in the ffs_vnops.

Ok'ed by:	rwatson
Sponsored by:	DARPA & NAI Labs.
2002-05-03 08:40:33 +00:00
Poul-Henning Kamp
d65b3c73d7 Use vop_panic() instead of our home-rolled version. 2002-05-02 19:15:52 +00:00
Alfred Perlstein
5a6ce14c42 Remove support for using soon to be retired "special" poll(2) ops.
Replace with kevent(2) ops.

This is untested, but the code would rot even further if this wasn't
applied.  I've chosen to apply this to prompt some cleanup.

Submitted by: bde
2002-04-18 14:52:28 +00:00
Jeff Roberson
5dacf95488 Don't peak into the malloc_type structure for limits. The desired vnodes
check should be sufficient.  This is required for the pending removal of
malloc_type limits.
2002-04-15 03:35:35 +00:00
Poul-Henning Kamp
2dd527b3ac Move generic disk ioctls from <sys/disklabel.h> to <sys/disk.h>.
Sponsored by:	DARPA & NAI Labs
2002-04-08 09:20:07 +00:00
John Baldwin
6008862bc2 Change callers of mtx_init() to pass in an appropriate lock type name. In
most cases NULL is passed, but in some cases such as network driver locks
(which use the MTX_NETWORK_LOCK macro) and UMA zone locks, a name is used.

Tested on:	i386, alpha, sparc64
2002-04-04 21:03:38 +00:00
Poul-Henning Kamp
a463023d6d Move the FFS parameter MAXFRAG from <sys/param.h> to <ufs/ffs/fs.h>
Sponsored by:	DARPA & NAI Labs.
2002-04-03 20:39:27 +00:00
Poul-Henning Kamp
46a67eaced Use DIOCGSECTORSIZE instead of the bogus DIOCGPART ioctl. 2002-04-02 11:23:14 +00:00
John Baldwin
44731cab3b Change the suser() API to take advantage of td_ucred as well as do a
general cleanup of the API.  The entire API now consists of two functions
similar to the pre-KSE API.  The suser() function takes a thread pointer
as its only argument.  The td_ucred member of this thread must be valid
so the only valid thread pointers are curthread and a few kernel threads
such as thread0.  The suser_cred() function takes a pointer to a struct
ucred as its first argument and an integer flag as its second argument.
The flag is currently only used for the PRISON_ROOT flag.

Discussed on:	smp@
2002-04-01 21:31:13 +00:00
Bruce Evans
0508986cce In ffs_mountffs(), set mnt_iosize_max to si_iosize_max unconditionally
provided the latter is nonzero.  At this point, the former is a fairly
arbitrary default value (DFTPHYS), so changing it to any reasonable
value specified by the device driver is safe.  Using the maximum of
these limits broke ffs clustered i/o for devices whose si_iosize_max
is < DFLTPHYS.  Using the minimum would break device drivers' ability
to increase the active limit from DFTLPHYS up to MAXPHYS.

Copied the code for this and the associated (unnecessary?) fixup of
mp_iosize_max to all other filesystems that use clustering (ext2fs and
msdosfs).  It was completely missing.

PR:		36309
MFC-after:	1 week
2002-03-30 15:12:57 +00:00
David Malone
527f5ce021 Two minor changes to dirhash, which result in some marginal benchmark
improvements.

1) If deleting an entry results in a chain of deleted slots ending in an
   empty slot, then we can be a bit more aggressive about marking slots as
   empty.

2) The last stage of the FNV hash is to xor the last byte of data
   into the hash. This means that filenames which differ only in
   the last byte will be placed close to one another in the hash
   table, which forms longer chains. To work around this common
   case, we also hash in the address of the dirhash structure.

     news/cancel = news/articles/control/cancel for a tradspool inn server
     squid2 = squid level 2 directory (dirs called 00->FF)
     squid3 = squid level 3 directory (files called 00001F00->00001FFF)

                             mean #probes for
                  home dir  mh inbox  news/cancel  tmp    squid2  squid3
old   successful  1.02      3.19      4.07         1.10    7.85   2.06
new   successful  1.04      1.32      1.27         1.04    1.93   1.17

old unsuccessful  1.08      4.50      5.37         1.17   10.76   2.69
new unsuccessful  1.08      1.73      1.64         1.17    2.89   1.37

Reviewed by:	iedowse
MFC after:	2 weeks
2002-03-20 17:58:02 +00:00
Jeff Roberson
e2f8f8a6b6 Remove references to vm_zone.h and switch over to the new uma API. 2002-03-20 08:48:07 +00:00
Alfred Perlstein
6f1e855112 Remove __P. 2002-03-19 22:40:48 +00:00
Bruce Evans
367b50a28f Fixed some printf format errors (hopefully all of the remaining daddr64_t
ones for GENERIC, and all others on the same line as those).  Reformat
the printfs if necessary to avoid new long lones or old format printf
errors.
2002-03-19 04:09:21 +00:00
Kirk McKusick
a0595d0249 Add a flags parameter to VFS_VGET to pass through the desired
locking flags when acquiring a vnode. The immediate purpose is
to allow polling lock requests (LK_NOWAIT) needed by soft updates
to avoid deadlock when enlisting other processes to help with
the background cleanup. For the future it will allow the use of
shared locks for read access to vnodes. This change touches a
lot of files as it affects most filesystems within the system.
It has been well tested on FFS, loopback, and CD-ROM filesystems.
only lightly on the others, so if you find a problem there, please
let me (mckusick@mckusick.com) know.
2002-03-17 01:25:47 +00:00
Kirk McKusick
0d2af52141 Introduce the new 64-bit size disk block, daddr64_t. Change
the bio and buffer structures to have daddr64_t bio_pblkno,
b_blkno, and b_lblkno fields which allows access to disks
larger than a Terabyte in size. This change also requires
that the VOP_BMAP vnode operation accept and return daddr64_t
blocks. This delta should not affect system operation in
any way. It merely sets up the necessary interfaces to allow
the development of disk drivers that work with these larger
disk block addresses. It also allows for the development of
UFS2 which will use 64-bit block addresses.
2002-03-15 18:49:47 +00:00
David E. O'Brien
f0c8652ed4 Quiet a warning on the Alpha. 2002-03-15 04:06:10 +00:00
Kirk McKusick
9721068f95 This corrects the first of two known deadlock conditions that
come from the presence of a snapshot file.
2002-03-14 01:21:13 +00:00
Ian Dowse
23bd68a426 Fix a bug in ufsdirhash_adjfree() that caused it to incorrectly
update the free-space statistics in some cases. The problem affected
directory blocks when the free space dropped below the size of the
maximum allowed entry size. When this happened, the free-space
summary information could claim that there are no further blocks
that can fit a maximum-size entry, even if there are.

The effect of this bug is that the directory may be enlarged even
though there is space within the directory for the new entry. This
wastes disk space and has a negative impact on performance.

Fix it by correctly computing the dh_firstfree array index, adding
a helper macro for clarity. Put an extra sanity check into
ufsdirhash_checkblock() to detect the situation in future.

Found by:	dwmalone
Reviewed by:	dwmalone
MFC after:	1 week
2002-03-11 19:13:22 +00:00
Poul-Henning Kamp
063f776327 I missed one VOP_CLOSE in the previous commit.
Pointed out by:	bde
2002-03-11 16:27:04 +00:00
Poul-Henning Kamp
3dbceccb78 As a XXX bandaid open the mounted device READ/WRITE even if we only mount
read-only.

The trouble here is that we don't reopen the device in read/write mode
when we remount in read/write mode resulting in a filesystem sending
write requests to a device which was only opened read/only.

I'm not quite sure how such a reopen would best be done and defer
the problem to more agile hackers.
2002-03-11 13:53:00 +00:00
Robert Watson
409b188022 Update DBA for NAI. We have several. We used the wrong one. :-) 2002-03-07 17:49:06 +00:00
Brian Feldman
9d9737ecb2 Add new errno ``ENOATTR''. 2002-03-07 15:13:44 +00:00
Matthew Dillon
2cfaf1e315 cleanup readability syntax prior to ongoing b_resid work commits.
MFC after:	1 day
2002-03-06 00:44:30 +00:00
John Baldwin
fdcc1cc09f Use thread0.td_ucred instead of proc0.p_ucred. This change is cosmetic
and isn't strictly required.  However, it lowers the number of false
positives found when grep'ing the kernel sources for p_ucred to ensure
proper locking.
2002-02-27 19:18:10 +00:00
John Baldwin
a854ed9893 Simple p_ucred -> td_ucred changes to start using the per-thread ucred
reference.
2002-02-27 18:32:23 +00:00
Poul-Henning Kamp
986066d065 Replace bowrite() with BUF_WRITE in ufs.
Remove bowrite(), it is now unused.

This is the first step in getting entirely rid of BIO_ORDERED which is
a generally accepted evil thing.

Approved by:	mckusick
2002-02-22 09:03:00 +00:00
Robert Watson
15b27e726e o Minor style fix on #endif, missing '_' in comment. 2002-02-20 15:44:43 +00:00
Poul-Henning Kamp
68edc1b939 Make v_addpollinfo() visible and non-inline.
Have callers only call it as needed.
Add necessary call in ufs_kqfilter().

Test-case found by:	Andrew Gallatin <gallatin@cs.duke.edu>
2002-02-18 16:18:02 +00:00
Poul-Henning Kamp
4b55dbe36b Move the stuff related to select and poll out of struct vnode.
The use of the zone allocator may or may not be overkill.
There is an XXX: over in ufs/ufs/ufs_vnops.c that jlemon may need
to revisit.

This shaves about 60 bytes of struct vnode which on my laptop means
600k less RAM used for vnodes.
2002-02-17 21:15:36 +00:00