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| author | Paul Eggert <eggert@cs.ucla.edu> | 2007-02-22 19:09:35 +0100 |
|---|---|---|
| committer | Jim Meyering <jim@meyering.net> | 2007-02-22 19:09:35 +0100 |
| commit | 4e73fea3e3b6fb721b91bb81e5357fb805eb590d (patch) | |
| tree | 9bd24b61c9e42d7f2053e34711373e29309b866a /doc | |
| parent | c450b625b4351aa5ab87a4334f95b6a24f3a0022 (diff) | |
| download | coreutils-4e73fea3e3b6fb721b91bb81e5357fb805eb590d.tar.xz | |
Honor dd's noatime flag if possible, even if not supported on build fs
* doc/coreutils.texi (dd invocation): Warn that noatime might not be
reliable.
* src/dd.c (flags, usage): Look at O_NOATIME, not
HAVE_WORKING_O_NOATIME, to decide whether to support the noatime
flag, so that dd attempts O_NOATIME even if the build file system
does not support it. Problem reported by Jim Meyering today in
bug-coreutils.
* tests/dd/misc: Generate a warning, not a failure, if noatime
exists but fails.
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/coreutils.texi | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/doc/coreutils.texi b/doc/coreutils.texi index 1a2dba43e..04c1b4e1e 100644 --- a/doc/coreutils.texi +++ b/doc/coreutils.texi @@ -7442,6 +7442,8 @@ Use non-blocking I/O. @opindex noatime @cindex access time Do not update the file's access time. +Some older file systems silently ignore this flag, so it is a good +idea to test it on your files before relying on it. @item noctty @opindex noctty |