89 lines
2.8 KiB
Diff
89 lines
2.8 KiB
Diff
mount/mount.8 | 7 +++++++
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mount/mount.c | 15 +++++++++++++--
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mount/mount_constants.h | 3 +++
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3 files changed, 23 insertions(+), 2 deletions(-)
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Index: util-linux-2.12r/mount/mount.8
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===================================================================
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--- util-linux-2.12r.orig/mount/mount.8
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+++ util-linux-2.12r/mount/mount.8
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@@ -572,6 +572,10 @@ This option implies the options
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(unless overridden by subsequent options, as in the option line
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.BR group,dev,suid ).
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.TP
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+.B hotplug
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+Do not report errors for this device if it doesn't exist.
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+.BR fcntl (2).
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+.TP
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.B mand
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Allow mandatory locks on this filesystem. See
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.BR fcntl (2).
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@@ -599,6 +603,9 @@ Do not allow direct execution of any bin
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(Until recently it was possible to run binaries anyway using a command like
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/lib/ld*.so /mnt/binary. This trick fails since Linux 2.4.25 / 2.6.0.)
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.TP
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+.B nohotplug
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+Report an error if the device does not exist.
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+.TP
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.B nomand
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Do not allow mandatory locks on this filesystem.
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.TP
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Index: util-linux-2.12r/mount/mount.c
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===================================================================
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--- util-linux-2.12r.orig/mount/mount.c
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+++ util-linux-2.12r/mount/mount.c
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@@ -162,9 +162,14 @@ static const struct opt_map opt_map[] =
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{ "diratime", 0, 1, MS_NODIRATIME }, /* Update dir access times */
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{ "nodiratime", 0, 0, MS_NODIRATIME },/* Do not update dir access times */
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#endif
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+#ifdef MS_HOTPLUG
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+ { "hotplug", 0, 0, MS_HOTPLUG }, /* Don't fail if ENOENT on dev */
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+#endif
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{ NULL, 0, 0, 0 }
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};
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+static int option_hotplug; /* can not invent our own MS_FLAGS */
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+
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static const char *opt_loopdev, *opt_vfstype,
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*opt_speed, *opt_comment;
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@@ -265,6 +270,10 @@ parse_opt(const char *opt, int *mask, ch
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for (om = opt_map; om->opt != NULL; om++)
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if (streq (opt, om->opt)) {
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+ if (om->mask & MS_HOTPLUG) {
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+ option_hotplug = 1;
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+ return;
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+ }
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if (om->inv)
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*mask &= ~om->mask;
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else
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@@ -958,9 +967,11 @@ nosigblock:
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else if (stat (node, &statbuf))
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error (_("mount: mount point %s is a symbolic link to nowhere"),
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node);
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- else if (stat (spec, &statbuf))
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+ else if (stat (spec, &statbuf)) {
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+ if (option_hotplug)
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+ goto out;
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error (_("mount: special device %s does not exist"), spec);
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- else {
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+ } else {
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errno = mnt_err;
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perror("mount");
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}
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Index: util-linux-2.12r/mount/mount_constants.h
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===================================================================
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--- util-linux-2.12r.orig/mount/mount_constants.h
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+++ util-linux-2.12r/mount/mount_constants.h
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@@ -57,6 +57,9 @@ if we have a stack or plain mount - moun
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#ifndef MS_VERBOSE
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#define MS_VERBOSE 0x8000 /* 32768 */
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#endif
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+
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+#define MS_HOTPLUG (1<<18) /* Don't fail if ENOENT on the dev, mount internal */
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+
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/*
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* Magic mount flag number. Had to be or-ed to the flag values.
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*/
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