mirror of
git://sourceware.org/git/lvm2.git
synced 2024-12-22 17:35:59 +03:00
25b733809a
Lots of changes/very little testing so far => there'll be bugs!
Use 'vgcreate -M text' to create a volume group with its metadata stored
in text files. Text format metadata changes should be reasonably atomic,
with a (basic) automatic recovery mechanism if the system crashes while a
change is in progress.
Add a metadata section to lvm.conf to specify multiple directories if
you want (recommended) to keep multiple copies of the metadata (eg on
different filesystems).
e.g. metadata {
dirs = ["/etc/lvm/metadata1","/usr/local/lvm/metadata2"]
}
Plenty of refinements still in the pipeline.
71 lines
1.2 KiB
C
71 lines
1.2 KiB
C
/*
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* Copyright (C) 2001 Sistina Software (UK) Limited.
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*
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* This file is released under the LGPL.
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*/
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#include "filter-composite.h"
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#include "dbg_malloc.h"
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#include "log.h"
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#include <stdarg.h>
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static int _and_p(struct dev_filter *f, struct device *dev)
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{
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struct dev_filter **filters = (struct dev_filter **) f->private;
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while (*filters) {
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if (!(*filters)->passes_filter(*filters, dev))
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return 0;
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filters++;
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}
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return 1;
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}
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static void _destroy(struct dev_filter *f)
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{
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struct dev_filter **filters = (struct dev_filter **) f->private;
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while (*filters) {
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(*filters)->destroy(*filters);
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filters++;
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}
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dbg_free(f->private);
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dbg_free(f);
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}
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struct dev_filter *composite_filter_create(int n, ...)
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{
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struct dev_filter **filters = dbg_malloc(sizeof(*filters) * (n + 1));
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struct dev_filter *cf;
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va_list ap;
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int i;
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if (!filters) {
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stack;
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return NULL;
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}
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if (!(cf = dbg_malloc(sizeof(*cf)))) {
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stack;
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dbg_free(filters);
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return NULL;
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}
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va_start(ap, n);
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for (i = 0; i < n; i++) {
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struct dev_filter *f = va_arg(ap, struct dev_filter *);
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filters[i] = f;
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}
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filters[i] = NULL;
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va_end(ap);
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cf->passes_filter = _and_p;
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cf->destroy = _destroy;
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cf->private = filters;
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return cf;
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}
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