diff -urNp coreutils-8.9-orig/doc/coreutils.texi coreutils-8.9/doc/coreutils.texi --- coreutils-8.9-orig/doc/coreutils.texi 2011-01-01 22:19:23.000000000 +0100 +++ coreutils-8.9/doc/coreutils.texi 2011-01-04 17:38:33.323888382 +0100 @@ -10306,6 +10306,13 @@ pseudo-file-systems, such as automounter Scale sizes by @var{size} before printing them (@pxref{Block size}). For example, @option{-BG} prints sizes in units of 1,073,741,824 bytes. +@itemx --direct +@opindex --direct +@cindex direct statfs for a file +Do not resolve mount point and show statistics directly for a file. It can be +especially useful for NFS mount points if there is a boundary between two +storage policies behind the mount point. + @itemx --total @opindex --total @cindex grand total of disk size, usage and available space diff -urNp coreutils-8.9-orig/src/df.c coreutils-8.9/src/df.c --- coreutils-8.9-orig/src/df.c 2011-01-01 22:19:23.000000000 +0100 +++ coreutils-8.9/src/df.c 2011-01-04 17:38:33.324887614 +0100 @@ -109,6 +109,9 @@ static bool print_type; /* If true, print a grand total at the end. */ static bool print_grand_total; +/* If true, show statistics for a file instead of mount point. */ +static bool direct_statfs; + /* Grand total data. */ static struct fs_usage grand_fsu; @@ -117,13 +120,15 @@ static struct fs_usage grand_fsu; enum { NO_SYNC_OPTION = CHAR_MAX + 1, - SYNC_OPTION + SYNC_OPTION, + DIRECT_OPTION }; static struct option const long_options[] = { {"all", no_argument, NULL, 'a'}, {"block-size", required_argument, NULL, 'B'}, + {"direct", no_argument, NULL, DIRECT_OPTION}, {"inodes", no_argument, NULL, 'i'}, {"human-readable", no_argument, NULL, 'h'}, {"si", no_argument, NULL, 'H'}, @@ -204,7 +209,10 @@ print_header (void) human_readable (output_block_size, buf, opts, 1, 1)); } - fputs (_(" Mounted on\n"), stdout); + if (direct_statfs) + fputs (_(" File\n"), stdout); + else + fputs (_(" Mounted on\n"), stdout); } /* Is FSTYPE a type of file system that should be listed? */ @@ -646,6 +654,17 @@ show_point (const char *point, const str static void show_entry (char const *name, struct stat const *statp) { + if (direct_statfs) + { + char *resolved = canonicalize_file_name (name); + if (resolved) + { + show_dev (NULL, resolved, NULL, NULL, false, false, NULL); + free (resolved); + return; + } + } + if ((S_ISBLK (statp->st_mode) || S_ISCHR (statp->st_mode)) && show_disk (name)) return; @@ -714,6 +733,7 @@ Mandatory arguments to long options are -B, --block-size=SIZE scale sizes by SIZE before printing them. E.g.,\n\ `-BM' prints sizes in units of 1,048,576 bytes.\n\ See SIZE format below.\n\ + --direct show statistics for a file instead of mount point\n\ --total produce a grand total\n\ -h, --human-readable print sizes in human readable format (e.g., 1K 234M 2G)\ \n\ @@ -790,6 +810,9 @@ main (int argc, char **argv) xstrtol_fatal (e, oi, c, long_options, optarg); } break; + case DIRECT_OPTION: + direct_statfs = true; + break; case 'i': inode_format = true; break; @@ -850,6 +873,13 @@ main (int argc, char **argv) } } + if (direct_statfs && show_local_fs) + { + error (0, 0, _("options --direct and --local (-l) are mutually " + "exclusive")); + usage (EXIT_FAILURE); + } + if (human_output_opts == -1) { if (posix_format) diff -urNp coreutils-8.9-orig/tests/df/direct coreutils-8.9/tests/df/direct --- coreutils-8.9-orig/tests/df/direct 1970-01-01 01:00:00.000000000 +0100 +++ coreutils-8.9/tests/df/direct 2011-01-04 17:38:33.328138905 +0100 @@ -0,0 +1,55 @@ +#!/bin/sh +# Ensure "df --direct" works as documented + +# Copyright (C) 2010 Free Software Foundation, Inc. + +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . + +. "${srcdir=.}/init.sh"; path_prepend_ ../src +print_ver_ df + +df || skip_test_ "df fails" + +DIR=`pwd` || framework_failure +FILE="$DIR/file" +touch "$FILE" || framework_failure +echo "$FILE" > file_exp || framework_failure +echo "Mounted on" > header_mounted_exp || framework_failure +echo "File" > header_file_exp || framework_failure + +fail=0 + +df --portability "$FILE" > df_out || fail=1 +df --portability --direct "$FILE" > df_direct_out || fail=1 +df --portability --direct --local "$FILE" > /dev/null 2>&1 && fail=1 + +# check df header +$AWK '{ if (NR==1) print $6 " " $7; }' df_out > header_mounted_out \ + || framework_failure +$AWK '{ if (NR==1) print $6; }' df_direct_out > header_file_out \ + || framework_failure +compare header_mounted_out header_mounted_exp || fail=1 +compare header_file_out header_file_exp || fail=1 + +# check df output (without --direct) +$AWK '{ if (NR==2) print $6; }' df_out > file_out \ + || framework_failure +compare file_out file_exp && fail=1 + +# check df output (with --direct) +$AWK '{ if (NR==2) print $6; }' df_direct_out > file_out \ + || framework_failure +compare file_out file_exp || fail=1 + +Exit $fail diff -urNp coreutils-8.9-orig/tests/Makefile.am coreutils-8.9/tests/Makefile.am --- coreutils-8.9-orig/tests/Makefile.am 2011-01-04 17:37:57.837887753 +0100 +++ coreutils-8.9/tests/Makefile.am 2011-01-04 17:38:33.326913944 +0100 @@ -352,6 +352,7 @@ TESTS = \ dd/stderr \ dd/unblock \ dd/unblock-sync \ + df/direct \ df/total-verify \ du/2g \ du/8gb \