Return to Makefile CVS log

Up to [Development] / xfs-cmds / dmapi / libdm

dm_handle_to_path() will now work in most cases, and in the other cases
there's just a little more grunt work that has to be done in the library.  If
the directory that contains some component of the path has never had a lookup
performed on it, then the kernel won't have that dir in its dcache.  In that
case it'll create an anonymous dentry for the filesystem's root dir, and the
library detects that this happened.

If the library detects that an anonymous dentry was created, then it returns
an error indicating that it didn't find the path.  Before I take this another
step, I'd like to know if this scenario happens in actual practice.  I'm
betting the directory of interest has almost always been loaded into the
dcache by a user process before the HSM uses dm_handle_to_path().  We'll see.

It seems that ioctl(XFS_IOC_OPEN_BY_HANDLE) would have the same restriction,
though it looks like it's never used in a case where the path hasn't already
been accessed.

This mod also removes libdm's dependence on libhandle.
Do not look for libhandle.

#
# Copyright (c) 2000 Silicon Graphics, Inc.  All Rights Reserved.
# 
# This program is free software; you can redistribute it and/or modify it
# under the terms of version 2 of the GNU General Public License as
# published by the Free Software Foundation.
# 
# This program is distributed in the hope that it would be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# 
# Further, this software is distributed without any warranty that it is
# free of the rightful claim of any third person regarding infringement
# or the like.  Any license provided herein, whether implied or
# otherwise, applies only to this software file.  Patent licenses, if
# any, provided herein do not apply to combinations of this program with
# other software, or any other product whatsoever.
# 
# You should have received a copy of the GNU General Public License along
# with this program; if not, write the Free Software Foundation, Inc., 59
# Temple Place - Suite 330, Boston MA 02111-1307, USA.
# 
# Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
# Mountain View, CA  94043, or:
# 
# http://www.sgi.com 
# 
# For further information regarding this notice, see: 
# 
# http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
#

TOPDIR = ..
include $(TOPDIR)/include/builddefs

LTLIBRARY = libdm.la
#LDLIBS = -lhandle
LT_CURRENT = 0
LT_REVISION = 2
LT_AGE = 0

HFILES = dmapi_lib.h
CFILES = dmapi_lib.c dm_attr.c dm_bulkattr.c dm_config.c dm_dmattr.c \
	 dm_event.c dm_handle.c dm_handle2path.c dm_hole.c dm_mountinfo.c \
	 dm_region.c dm_right.c dm_rdwr.c dm_session.c

default: $(LTLIBRARY)

include $(BUILDRULES)

install: default
	$(INSTALL_LTLIB)

install-dev: default
	$(INSTALL_LTLIB_DEV)