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Commit Graph

22 Commits

Author SHA1 Message Date
Ian Lepore
7668336c8e Add a divisor parameter to twiddle() so that callers can request that output
only happen on every Nth call.  Update the existing twiddle() calls done in
various IO loops to roughly reflect the relative IO sizes.  That is, tftp
and nfs call twiddle() on every 1K block, ufs on every filesystem block,
so the network calls now use a much larger divisor than disk IO calls.

Also add a new twiddle_divisor() function that allows an application to set
a global divisor that is applied on top of the per-call divisors.  Nothing
calls this yet, but loader(8) will be using it to further throttle the
cursor for slow serial consoles.
2014-12-22 20:42:36 +00:00
Alexander Motin
637871ea97 Move pos++ out of the complicated equation, introduced at r240780.
There is an oppinion that result of that equation is compiler-specific.

Submitted by:	dt71@gmx.com, kientzle
Reviewed by:	rmacklem
MFC after:	3 days
2013-07-01 17:23:13 +00:00
Kevin Lo
b7b6a643aa Revert r240850 and remove redundant NULL check before free(3).
free(3) handles NULL parameter fine.

Reviewed by:	kib, Garrett Cooper
2012-09-24 05:24:10 +00:00
Kevin Lo
6e427123e2 Avoid NULL dereference 2012-09-23 08:38:06 +00:00
Alexander Motin
4b1b92312e Make nfs_readdir() more careful about using response data, cached in global
buffer. For now it fixes bug when following `ls` command will return data
from previous one aborted by pager. Also it should allow to read several
directories same time, for example, for recursive tracerse.
2012-09-21 13:25:50 +00:00
Alexander Motin
e34e909b1f Don't use global nfs_root_node variable as per-file storage. There are
fields that should be file-specific.
2012-09-21 12:19:36 +00:00
Rick Macklem
de5f647070 Modify lib/libstand/nfs.c to use NFSv3 instead of NFSv2.
This allows the nfs_getrootfh() function to return the
correct file handle size to pxe.c for pxeboot. It also
results in NFSv2 no longer being used by default anywhere
in FreeBSD. If built with OLD_NFSV2 defined, the old
code that predated this patch will be built and NFSv2
will be used.

Tested by:	danny at cs.huji.ac.il
MFC after:	2 weeks
2010-09-02 01:00:13 +00:00
Ed Maste
e47a3e5df0 ANSIfy, whitespace and comment adjustments, to simplify comparing these
files with NetBSD / OpenBSD versions.
2009-09-13 21:51:01 +00:00
Luigi Rizzo
24d96d62cc use the correct variable in a debug message. 2008-11-21 09:14:29 +00:00
Doug Rabson
472f4537e6 On i386, don't try to do network-type stuff if the device name is'nt pxeN. 2008-04-05 15:03:29 +00:00
John Baldwin
fb6b710c39 Clean up error handling in libstand filesystem code to be more consistent:
- bzipfs and gzipfs now properly return errno values directly from their
  read routines rather than returning -1.
- missing errno values on error returns for the seek routines on almost
  all filesystems were added.
- fstat() now returns -1 if an error occurs rather than ignoring it.
- nfs's readdir() routine now reports valid errno values if an error or
  EOF occurs rather than EPERM  (It was just returning 0 for success and
  1 for failure).
- nullfs used the wrong semantics for every function besides close() and
  seek().  Getting it right for close() appears to be an accident at that.
- read() for buffered files no longer returns 0 (EOF) if an error occurs,
  but returns -1 instead.
2004-01-21 20:12:23 +00:00
Marcel Moolenaar
9c73bdcf24 Fix a machine check abort caused by the EFI loader trying to open a
file in the NFS file system when the underlying device is not a
network device. A Sparc64 specific hack for this exact problem was
already present (nfs.c:1.9, tftp.c:1.10), but the problem is not
specific to Sparc64. The hack has been promoted to a non-i386 test
because on non-i386 architectures it's either impossible to have
non-network devices coexist in the same loader with the NFS FS, or
network and non-network device coexist and NFS filesystems can only
be used on top of network devices. I believe i386 pxeboot is where
this does not hold.

The root cause of this problem is in open.c where each file system
is tried until no more file systems exist or a file system returns
success. There's no notion of a list of valid file systems given
the underlying device and the non-existence of a file can cause
the invalid combination to be tried.
2003-03-03 00:58:47 +00:00
Jake Burkholder
f739b33f57 Stash various networking paramters in the environment for the kernel
to pick up, ala pxe.
2002-07-31 20:17:06 +00:00
Jake Burkholder
f9751ec2cd Add a hack (kludge?) to avoid trying to access files backed by disk
devices as though they were backed by network devices.
2002-07-07 23:01:36 +00:00
David E. O'Brien
be04b6d190 Remove 'register' keyword. 2002-03-21 23:39:28 +00:00
Matthew Dillon
e74b6a84ce Add __FBSDID()s to libstand 2001-09-30 22:28:01 +00:00
Mike Smith
6910d080a2 Expose the NFS root node, so that an evil consumer can use it to get the
NFS filehandle for the root mount.
2000-09-05 22:11:41 +00:00
Paul Saab
db667a40a5 Add readdir support to the NFS filesystem in libstand. 2000-05-01 15:03:52 +00:00
Paul Saab
f12d45d9d6 Do not attempt to free a nfs node if it is the root node. The root
node is statically allocated and is not guarded, so free will panic
in nfs_close.
2000-05-01 10:53:21 +00:00
Jonathan Lemon
efb8ff8532 Add a readdir function to the loader fsops vector, and implement the
functionality for some of the filesystesms.
2000-04-29 20:47:10 +00:00
Mike Smith
4ce36a791b Path arguments to *_open functions should be const, but we were mangling
them.

Submitted by:	write-protected text segment in BTX
1998-09-18 22:58:01 +00:00
Mike Smith
6b4f575cb1 This is libstand; a support library for standalone executables (eg. bootstrap
modules).
Obtained from: NetBSD, with some architectural changes and many additions.
1998-08-20 08:19:55 +00:00