Messages in this thread |  | | Date | Thu, 4 Jan 2001 22:08:21 +0100 | From | Stefan Traby <> | Subject | Re: Journaling: Surviving or allowing unclean shutdown? |
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On Thu, Jan 04, 2001 at 07:21:04PM +0000, Stephen C. Tweedie wrote:
> ext3 does the recovery automatically during mount(8), so user space > will never see an unrecovered filesystem. (There are filesystem flags > set by the journal code to make sure that an unrecovered filesystem > never gets mounted by a kernel which doesn't know how to do the > appropriate recovery.)
I did not follow the ext3 development recently, how did you solve the "read-only mount(2) (optionally on write protected media)" issue ?
Does the mount fail, or does the code virtually replays (without writing) only ?
I think any other action (only replaying on rw mount and presenting a broken filesystem on ro) is quite fatal, at least if I think of a replay on -remount,rw :)
Also, an unconditional hidden replay even if "ro" is specified is not nice.
This is especially critical on root filesystem, because there is IMHO no way to specify mount arguments to the "/" mount, except ro/rw.
--
ciao - Stefan
" ( cd /lib ; ln -s libBrokenLocale-2.2.so libNiedersachsen.so ) " Stefan Traby Linux/ia32 fax: +43-3133-6107-9 Mitterlasznitzstr. 13 Linux/alpha phone: +43-3133-6107-2 8302 Nestelbach Linux/sparc http://www.hello-penguin.com Austria mailto://st.traby@opengroup.org Europe mailto://stefan@hello-penguin.com - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/
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