src/sys/compat/linux/linux_getcwd.c, branch releng/6.1

MFC Rev 1.21

2006-03-13T03:04:04+00:00

VFS SMP fixes, stack api, softupdates fixes.

Sponsored by:	Isilon Systems, Inc.
Approved by:	re (scottl)

Add Giant around linux_getcwd_common() in linux_getcwd().

2005-07-09T12:34:49+00:00

Approved by:	re (scottl)

- Change all filesystems and vfs_cache to relock the dvp once the child is

2005-04-13T10:59:09+00:00

   locked in the ISDOTDOT case.  Se vfs_lookup.c r1.79 for details.

Sponsored by:	Isilon Systems, Inc.

- Initial cn_lkflags to LK_EXCLUSIVE.

2005-03-29T10:16:12+00:00

Sponsored by:	Isilon Systems, Inc.

Match the LINUX32's style with existing style

2005-01-14T04:44:56+00:00

Submitted by:	Jung-uk Kim 

Use positive, not negative logic.

Changes to MI Linux emulation code necessary to run 32-bit Linux binaries

2004-08-16T07:28:16+00:00

on AMD64, and the general case where the emulated platform has different
size pointers than we use natively:
- declare certain structure members as l_uintptr_t and use the new PTRIN
  and PTROUT macros to convert to and from native pointers.
- declare some structures __packed on amd64 when the layout would differ
  from that used on i386.
- include  instead of 
  if compiling with COMPAT_LINUX32. This will need to be revisited before
  32-bit and 64-bit Linux emulation support can coexist in the same kernel.
- other small scattered changes.

This should be a no-op on i386 and Alpha.

Add a MAC check for VOP_LOOKUP() in the Linux getwcd() implementation.

2003-11-17T18:57:20+00:00

Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, Network Associates Laboratories

Use __FBSDID().

2003-06-10T21:29:12+00:00

Backout the getcwd changes, a more comprehensive effort will be needed.

2003-03-20T10:40:45+00:00

(This commit certainly increases the need for a wash&clean of vfs_cache.c,

2003-03-17T12:21:08+00:00

but I decided that it was important for this patch to not bit-rot, and
since it is mainly moving code around, the total amount of entropy is
epsilon /phk)

This is a patch to move the common parts of linux_getcwd() back into
kern/vfs_cache.c so that the standard FreeBSD libc getcwd() can use it's
extended functionality.  The linux syscall linux_getcwd() in
compat/linux/linux_getcwd.c has been rewritten to use it too.  It should
be possible to simplify libc's getcwd() after this.  No doubt this code
needs some cleaning up, since I've left in the sysctl variables I used
for debugging.

PR:	48169
Submitted by:	James Whitwell