Messages in this thread | | | Date | Fri, 28 Nov 2003 00:09:37 +0100 | From | "J.A. Magallon" <> | Subject | Locking over NFS |
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Hi all...
Is locking via lockf/fcntl supposed to work over NFS mounted volumes in 2.4 ? I can't get it to work, even if kernel [lockd] is running in the server. Server locks the file, and client gets an error:
annwn:~/dev/lk> lockf 10000 locked <switch term> annwn:~/dev/lk> bpsh 0 lockf lockf:F_LOCK: No locks available
lockf.c:
#include <unistd.h> #include <fcntl.h> #include <stdio.h>
int main(int argc, char** argv) { int fd;
fd = open("lock",O_RDWR); if (fd<0) perror("open");
if (lockf(fd,F_LOCK,0)<0) perror("lockf:F_LOCK"); else printf("locked\n"); fflush(stdout);
if (argc>1) sleep(atoi(argv[1]));
if (lockf(fd,F_ULOCK,0)<0) perror("lockf:F_ULOCK"); else printf("unlocked\n"); fflush(stdout);
return 0; }
TIA
-- J.A. Magallon <jamagallon()able!es> \ Software is like sex: werewolf!able!es \ It's better when it's free Mandrake Linux release 10.0 (Cooker) for i586 Linux 2.4.23-rc5-jam1 (gcc 3.3.1 (Mandrake Linux 9.2 3.3.1-4mdk)) - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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