Posix ACL support for ext 2/3 filesystems (1/5)

This patch (as well as the following two) implements core ACL support. This set of convenience functions is used by the ext2/3 filesystem, and may be useful to other filesystems that wish to use "struct posix_acl" as their internal representation of acl's. User mode tools which support this interface may be found at http://acl.bestbits.at

These patches require that the extended attribute patches be applied first.

# This is a BitKeeper generated patch for the following project:
# Project Name: Linux kernel tree
#

# fs/Config.in              |    5 
# fs/Makefile               |    1 
# fs/posix_acl.c            |  412 ++++++++++++++++++++++++++++++++++++++++++++++
# include/linux/posix_acl.h |   87 +++++++++

# 4 files changed, 505 insertions(+)
#
# The following is the BitKeeper ChangeSet Log
# --------------------------------------------
# 02/10/18 [email protected] 1.812
# Port of 0.8.50 acl patch to 2.5
#
# This patch (as well as the following two) implements core ACL support. # This set of convenience functions is used by the ext2/3 filesystem,

# and may be useful to other filesystems that wish to use "struct posix_acl"
# as their internal representation of acl's.  User mode tools which
# support this interface may be found at http://acl.bestbits.at
# --------------------------------------------
#
diff -Nru a/fs/Config.in b/fs/Config.in
--- a/fs/Config.in	Fri Oct 18 14:27:31 2002
+++ b/fs/Config.in	Fri Oct 18 14:27:31 2002
@@ -195,6 +195,11 @@
    fi
 fi

+# Posix ACL utility routines (for now, only ext2/ext3)
+if [ "$CONFIG_EXT2_FS_POSIX_ACL" = "y" -o "$CONFIG_EXT3_FS_POSIX_ACL" = "y" ]; then
+ define_bool CONFIG_FS_POSIX_ACL y
+fi
+
mainmenu_option next_comment
comment 'Partition Types'
source fs/partitions/Config.in

diff -Nru a/fs/Makefile b/fs/Makefile
@@ -31,6 +31,7 @@
 obj-$(CONFIG_BINFMT_ELF)	+= binfmt_elf.o
 
 obj-$(CONFIG_FS_MBCACHE)	+= mbcache.o
+obj-$(CONFIG_FS_POSIX_ACL)	+= posix_acl.o
 
 obj-$(CONFIG_QUOTA)		+= dquot.o
 obj-$(CONFIG_QFMT_V1)		+= quota_v1.o