From: Donald Buczek <buczek@molgen.mpg.de>
To: linux-nfs@vger.kernel.org
Subject: open after unlink tries to open old file
Date: Fri, 10 Mar 2017 14:55:09 +0100 [thread overview]
Message-ID: <ae2f9a9e-65b0-9fe5-a148-4ec698df91d0@molgen.mpg.de> (raw)
I see this code
#include <stdlib.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#define FILENAME "test.dat"
int main() {
int i;
int fd;
unlink(FILENAME);
for (i=0;i<1000;i++) {
printf("%d\n",i);
if ((fd=open(FILENAME,O_WRONLY+O_CREAT,0))==-1) {
perror("open");
exit(1);
}
if (close(fd)==-1) {
perror("close");
exit(1);
}
if (unlink(FILENAME)==-1) {
perror("unlink");
exit(1);
}
}
}
failing most of the time in NFS-mounted directories:
buczek@theinternet:~$ uname -a
Linux theinternet.molgen.mpg.de 4.4.52.mx64.142 #1 SMP Fri Mar 3
21:25:00 CET 2017 x86_64 GNU/Linux
buczek@theinternet:~$ nfs_test
0
1
2
3
4
open: Permission denied
buczek@theinternet:~$
but I fail to find an answer to the question, whether this is supposed
to work or not. Is this a bug or a caching feature?
Thanks
Donald
--
Donald Buczek
buczek@molgen.mpg.de
Tel: +49 30 8413 1433
next reply other threads:[~2017-03-10 14:02 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-10 13:55 Donald Buczek [this message]
2017-03-24 15:22 ` open after unlink tries to open old file Donald Buczek
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