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| author | goggin, edward <egoggin@emc.com> | 2006-01-06 00:20:01 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-01-06 08:34:00 -0800 |
| commit | 81f1777a55e8c631b61e5fa5980fb7a2004287af (patch) | |
| tree | e63c43ce8951e316f21a85554d867dd25a2ceb6c /drivers/md/dm-ioctl.c | |
| parent | d229a9589ff3b988d3f999cdcfa350f97a372673 (diff) | |
| download | linux-3.10-81f1777a55e8c631b61e5fa5980fb7a2004287af.tar.gz linux-3.10-81f1777a55e8c631b61e5fa5980fb7a2004287af.tar.bz2 linux-3.10-81f1777a55e8c631b61e5fa5980fb7a2004287af.zip | |
[PATCH] device-mapper ioctl: event on rename
After changing the name of a mapped device, trigger a dm event. (For
userspace multipath tools.)
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/md/dm-ioctl.c')
| -rw-r--r-- | drivers/md/dm-ioctl.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c index 07d44e19536..3e327db5731 100644 --- a/drivers/md/dm-ioctl.c +++ b/drivers/md/dm-ioctl.c @@ -270,6 +270,7 @@ static int dm_hash_rename(const char *old, const char *new) { char *new_name, *old_name; struct hash_cell *hc; + struct dm_table *table; /* * duplicate new. @@ -317,6 +318,15 @@ static int dm_hash_rename(const char *old, const char *new) /* rename the device node in devfs */ register_with_devfs(hc); + /* + * Wake up any dm event waiters. + */ + table = dm_get_table(hc->md); + if (table) { + dm_table_event(table); + dm_table_put(table); + } + up_write(&_hash_lock); kfree(old_name); return 0; |