shaba/lvm2
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Currently if clvmd is running and user issues vgscan,

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the device cache file is dumped both in vgscan and clvmd process.

Unfortunately, clvmd calls lvmcache_label_scan,
it properly destroys persistent filter, but during
persistent_filter_dump it merges old cache content back!

This causes that change in filters is not properly propagated
into device cache after vgscan on cluster.
(Only new devices are added.)

https://bugzilla.redhat.com/show_bug.cgi?id=591861
This commit is contained in:
Milan Broz 2010-05-13 13:04:03 +00:00
parent 1540955fc6
commit 9ad39e546b
5 changed files with 6 additions and 5 deletions
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1
WHATS_NEW
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@ -1,5 +1,6 @@
Version 2.02.65 -
=================================
Do not merge old device cache after we run full scan. (2.02.56)
Add pkgconfigdir Makefile variable for make install override.
Switch usage of Libs.private: to Requires.private: in devmapper.pc, lvm2app.pc.
Use field Requires.private: for devmapper-event.pc.

2
lib/cache/lvmcache.c vendored
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@ -567,7 +567,7 @@ int lvmcache_label_scan(struct cmd_context *cmd, int full_scan)
* device cache for the benefit of short-lived processes.
*/
if (full_scan == 2 && cmd->is_long_lived && cmd->dump_filter)
persistent_filter_dump(cmd->filter);
persistent_filter_dump(cmd->filter, 0);
r = 1;

2
lib/commands/toolcontext.c
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@ -1341,7 +1341,7 @@ int refresh_toolcontext(struct cmd_context *cmd)
void destroy_toolcontext(struct cmd_context *cmd)
{
if (cmd->dump_filter)
persistent_filter_dump(cmd->filter);
persistent_filter_dump(cmd->filter, 1);
archive_exit(cmd);
backup_exit(cmd);

4
lib/filters/filter-persistent.c
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@ -168,7 +168,7 @@ static void _write_array(struct pfilter *pf, FILE *fp, const char *path,
fprintf(fp, "\n\t]\n");
}
int persistent_filter_dump(struct dev_filter *f)
int persistent_filter_dump(struct dev_filter *f, int merge_existing)
{
struct pfilter *pf;
char *tmp_file;
@ -220,7 +220,7 @@ int persistent_filter_dump(struct dev_filter *f)
/*
* If file contents changed since we loaded it, merge new contents
*/
if (info.st_ctime != pf->ctime)
if (merge_existing && info.st_ctime != pf->ctime)
/* Keep cft open to avoid losing lock */
persistent_filter_load(f, &cft);

2
lib/filters/filter-persistent.h
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@ -23,6 +23,6 @@ struct dev_filter *persistent_filter_create(struct dev_filter *f,
int persistent_filter_wipe(struct dev_filter *f);
int persistent_filter_load(struct dev_filter *f, struct config_tree **cft_out);
int persistent_filter_dump(struct dev_filter *f);
int persistent_filter_dump(struct dev_filter *f, int merge_existing);
#endif