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From: wysochanski@sourceware.org To: lvm-devel@redhat.com, lvm2-cvs@sourceware.org Subject: LVM2/lib/cache lvmcache.c lvmcache.h Date: Wed, 19 May 2010 11:52:00 -0000 [thread overview] Message-ID: <20100519115208.24733.qmail@sourceware.org> (raw) CVSROOT: /cvs/lvm2 Module name: LVM2 Changes by: wysochanski@sourceware.org 2010-05-19 11:52:08 Modified files: lib/cache : lvmcache.c lvmcache.h Log message: Add pvid_from_devname() lvmcache function. Add supporting function for mappings from devname -> pvid -> vgname. Patches: http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/lib/cache/lvmcache.c.diff?cvsroot=lvm2&r1=1.89&r2=1.90 http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/lib/cache/lvmcache.h.diff?cvsroot=lvm2&r1=1.31&r2=1.32 --- LVM2/lib/cache/lvmcache.c 2010/05/19 02:08:50 1.89 +++ LVM2/lib/cache/lvmcache.c 2010/05/19 11:52:07 1.90 @@ -757,6 +757,25 @@ return NULL; } +const char *pvid_from_devname(struct cmd_context *cmd, + const char *devname) +{ + struct device *dev; + struct label *label; + + if (!(dev = dev_cache_get(devname, cmd->filter))) { + log_error("%s: Couldn't find device. Check your filters?", + devname); + return NULL; + } + + if (!(label_read(dev, &label, UINT64_C(0)))) + return NULL; + + return dev->pvid; +} + + static int _free_vginfo(struct lvmcache_vginfo *vginfo) { struct lvmcache_vginfo *primary_vginfo, *vginfo2; --- LVM2/lib/cache/lvmcache.h 2010/05/19 02:36:33 1.31 +++ LVM2/lib/cache/lvmcache.h 2010/05/19 11:52:07 1.32 @@ -96,6 +96,8 @@ const char *vgname_from_vgid(struct dm_pool *mem, const char *vgid); struct device *device_from_pvid(struct cmd_context *cmd, struct id *pvid, unsigned *scan_done_once); +const char *pvid_from_devname(struct cmd_context *cmd, + const char *dev_name); int vgs_locked(void); int vgname_is_locked(const char *vgname);
next reply other threads:[~2010-05-19 11:52 UTC|newest] Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top 2010-05-19 11:52 wysochanski [this message] -- strict thread matches above, loose matches on Subject: below -- 2010-10-25 13:02 zkabelac 2010-05-19 11:52 wysochanski 2005-10-27 17:41 agk
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