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| author | Jim Meyering <jim@meyering.net> | 1994-10-29 04:49:55 +0000 |
|---|---|---|
| committer | Jim Meyering <jim@meyering.net> | 1994-10-29 04:49:55 +0000 |
| commit | 1fd77b2ddfd44d1150c73f675adca8ca8b483ad1 (patch) | |
| tree | d9d50f663c6a840c1d7b4f65275dc5547036977f /src/df.c | |
| parent | 2ef20008e86d403130dc4e4b3a9287cc7dd472e4 (diff) | |
| download | coreutils-1fd77b2ddfd44d1150c73f675adca8ca8b483ad1.tar.xz | |
.
Diffstat (limited to 'src/df.c')
| -rw-r--r-- | src/df.c | 18 |
1 files changed, 13 insertions, 5 deletions
@@ -81,8 +81,11 @@ static int posix_format; /* If nonzero, invoke the `sync' system call before getting any usage data. Using this option can make df very slow, especially with many or very - busy disks. */ -static int require_sync; + busy disks. Default to non-zero because the sync call does make a + difference on some systems -- SunOs4.1.3, for one. I have been assured + that it is *not* necessary on Linux, so there should be a way to + configure this. FIXME. */ +static int require_sync = 1; /* Nonzero if errors have occurred. */ static int exit_status; @@ -132,7 +135,8 @@ static struct option const long_options[] = {"kilobytes", no_argument, &kilobyte_blocks, 1}, {"portability", no_argument, &posix_format, 1}, {"print-type", no_argument, &print_type, 1}, - {"sync", no_argument, 0, 's'}, + {"sync", no_argument, 0, 129}, + {"no-sync", no_argument, 0, 130}, {"type", required_argument, 0, 't'}, {"exclude-type", required_argument, 0, 'x'}, {"help", no_argument, &show_help, 1}, @@ -181,9 +185,12 @@ main (argc, argv) case 'P': posix_format = 1; break; - case 's': + case 129: require_sync = 1; break; + case 130: + require_sync = 0; + break; case 't': add_fs_type (optarg); break; @@ -515,7 +522,8 @@ usage (status) -a, --all include filesystems having 0 blocks\n\ -i, --inodes list inode information instead of block usage\n\ -k, --kilobytes use 1024 blocks, not 512 despite POSIXLY_CORRECT\n\ - -s, --sync invoke sync system call before getting usage info\n\ + --sync invoke sync before getting usage info (default)\n\ + --no-sync do not invoke sync before getting usage info\n\ -t, --type=TYPE limit the listing to TYPE filesystems type\n\ -x, --exclude-type=TYPE limit the listing to not TYPE filesystems type\n\ -v (ignored)\n\ |