[Bugme-new] [Bug 6772] New: truncate() updates timestamps even if
file size does not change
bugme-daemon at bugzilla.kernel.org
bugme-daemon at bugzilla.kernel.org
Fri Jun 30 00:00:17 PDT 2006
http://bugzilla.kernel.org/show_bug.cgi?id=6772
Summary: truncate() updates timestamps even if file size does not
change
Kernel Version: 2.6.17
Status: NEW
Severity: normal
Owner: xfs-masters at oss.sgi.com
Submitter: michael.kerrisk at gmx.net
Most recent kernel where this bug did not occur: unknown
Distribution: SUSE 10.0
Hardware Environment: x86
Software Environment:
Problem Description:
POSIX requires that truncate() only change the ctime and mtime on the file if
the file size actually changes (see "man 3p truncate"). On ext2 and ext3, this
seems to work as required.
However, ox XFS, truncate() changes the timestamps of the file even if the file
size remains unchanged. This should not happen.
Steps to reproduce:
Something like the following can be used to test:
...
int main(int argc, char *argv[])
{
if (truncate(argv[1], atoi(argv[2])) == -1)
perror("truncate")
}
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