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Patch from Paul Fox to improve mount's error handling behavior, which I beat

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on a bit.
This commit is contained in:
Rob Landley 2006-06-21 03:53:33 +00:00
parent dbfb5a3cb7
commit 0cc2c2c289
1 changed files with 16 additions and 21 deletions
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37
util-linux/mount.c
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@ -256,9 +256,9 @@ static int mount_it_now(struct mntent *mp, int vfsflags, char *filteropts)
// Mount one directory. Handles NFS, loopback, autobind, and filesystem type
// detection. Returns 0 for success, nonzero for failure.
static int singlemount(struct mntent *mp)
static int singlemount(struct mntent *mp, int ignore_busy)
{
int rc = 1, vfsflags;
int rc = -1, vfsflags;
char *loopFile = 0, *filteropts = 0;
llist_t *fl = 0;
struct stat st;
@ -277,14 +277,14 @@ static int singlemount(struct mntent *mp)
{
if (nfsmount(mp->mnt_fsname, mp->mnt_dir, &vfsflags, &filteropts, 1)) {
bb_perror_msg("nfsmount failed");
return 1;
goto report_error;
} else {
// Strangely enough, nfsmount() doesn't actually mount() anything.
mp->mnt_type = "nfs";
rc = mount_it_now(mp, vfsflags, filteropts);
if (ENABLE_FEATURE_CLEAN_UP) free(filteropts);
return rc;
goto report_error;
}
}
@ -354,10 +354,14 @@ static int singlemount(struct mntent *mp)
free(mp->mnt_fsname);
}
}
report_error:
if (rc && errno == EBUSY && ignore_busy) rc = 0;
if (rc < 0)
bb_perror_msg("Mounting %s on %s failed", mp->mnt_fsname, mp->mnt_dir);
return rc;
}
// Parse options, if necessary parse fstab/mtab, and call singlemount for
// each directory to be mounted.
@ -365,7 +369,7 @@ int mount_main(int argc, char **argv)
{
char *cmdopts = bb_xstrdup(""), *fstabname, *fstype=0, *storage_path=0;
FILE *fstab;
int i, opt, all = FALSE, rc = 1;
int i, opt, all = FALSE, rc = 0;
struct mntent mtpair[2], *mtcur = mtpair;
/* parse long options, like --bind and --move. Note that -o option
@ -447,7 +451,7 @@ int mount_main(int argc, char **argv)
mtpair->mnt_dir = argv[optind+1];
mtpair->mnt_type = fstype;
mtpair->mnt_opts = cmdopts;
rc = singlemount(mtpair);
rc = singlemount(mtpair, 0);
goto clean_up;
}
@ -491,10 +495,10 @@ int mount_main(int argc, char **argv)
mtcur = mtnext;
mtcur->mnt_opts=bb_xstrdup(mtcur->mnt_opts);
append_mount_options(&(mtcur->mnt_opts),cmdopts);
rc = singlemount(mtcur);
rc = singlemount(mtcur, 0);
free(mtcur->mnt_opts);
}
break;
goto clean_up;
}
/* If we're trying to mount something specific and this isn't it,
@ -529,14 +533,9 @@ int mount_main(int argc, char **argv)
// Mount this thing.
rc = singlemount(mtcur);
if(rc) {
// Don't whine about already mounted fs when mounting all.
// Note: we should probably change return value to indicate
// failure, without causing a duplicate error message.
if (errno != EBUSY) bb_perror_msg("Mounting %s on %s failed",
mtcur->mnt_fsname, mtcur->mnt_dir);
rc = 0;
if (singlemount(mtcur, 1)) {
/* Count number of failed mounts */
rc++;
}
}
}
@ -549,9 +548,5 @@ clean_up:
free(cmdopts);
}
if(rc)
bb_perror_msg("Mounting %s on %s failed",
mtcur->mnt_fsname, mtcur->mnt_dir);
return rc;
}