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Date: Sat, 21 Apr 2007 10:06:28 +0200 From: Miklos Szeredi <miklos@...redi.hu> To: akpm@...ux-foundation.org CC: serue@...ibm.com, viro@....linux.org.uk, linuxram@...ibm.com, ebiederm@...ssion.com, linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org, containers@...ts.osdl.org Subject: Re: [patch 1/8] add user mounts to the kernel > > From: Miklos Szeredi <mszeredi@...e.cz> > > > > Add ownership information to mounts. > > > > A new mount flag, MS_SETUSER is used to make a mount owned by a user. > > If this flag is specified, then the owner will be set to the current > > real user id and the mount will be marked with the MNT_USER flag. On > > remount don't preserve previous owner, and treat MS_SETUSER as for a > > new mount. The MS_SETUSER flag is ignored on mount move. > > So is a modified mount(8) needed? If so, is there some convenient way > in which testers can get hold of it? I haven't yet added this to mount(8). I'll do that and post patches. There's an ultra sophisticated mount tester program I use. It's slightly user unfriendly... Miklos ---- #include <stdio.h> #include <stdlib.h> #include <string.h> #include <sys/mount.h> int main(int argc, char *argv[]) { int res; int un = (strrchr(argv[0], '/') ?: argv[0] - 1)[1] == 'u'; if ((un && argc != 3) || (!un && argc != 6)) { fprintf(stderr, "usage: %s %s\n", argv[0], un ? "dir flags" : "dev dir type flags opts"); return 1; } if (un) res = umount2(argv[1], atoi(argv[2])); else res = mount(argv[1], argv[2], argv[3], atoi(argv[4]), argv[5]); if (res == -1) { perror(argv[0]); return 1; } return 0; } - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.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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