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thin: dmeventd plugins support more minors

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Kernel supports upto 1M (20bit) minors.
TODO: convert to hash to reduce memory requirements
This commit is contained in:
Zdenek Kabelac 2014-04-17 13:26:45 +02:00
parent 47a60369a0
commit 0b6d6bfb77
2 changed files with 3 additions and 1 deletions
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1
WHATS_NEW_DM
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@ -1,5 +1,6 @@
Version 1.02.88 -
=================================
Increase bitset size for minors for thin dmeventd plugin.
Version 1.02.85 - 10th April 2014
=================================

3
daemons/dmeventd/plugins/thin/dmeventd_thin.c
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@ -218,7 +218,8 @@ static int _umount_device(char *buffer, unsigned major, unsigned minor,
*/
static void _umount(struct dm_task *dmt, const char *device)
{
static const size_t MINORS = 4096;
/* TODO: Convert to use hash to reduce memory usage */
static const size_t MINORS = (1U << 20); /* 20 bit */
struct mountinfo_s data = {
.device = device,
};