Author: avg
Date: Tue Feb 18 13:58:55 2014
New Revision: 262156
URL: http://svnweb.freebsd.org/changeset/base/262156
Log:
MFC r250149: In case ZFS doesn't use UMA for buffers there's no need to waste
memory
Modified:
stable/9/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zio.c
Directory Properties:
stable/9/sys/ (props changed)
stable/9/sys/cddl/contrib/opensolaris/ (props changed)
Modified: stable/9/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zio.c
==============================================================================
--- stable/9/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zio.c Tue Feb
18 13:49:03 2014 (r262155)
+++ stable/9/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zio.c Tue Feb
18 13:58:55 2014 (r262156)
@@ -130,6 +130,8 @@ zio_init(void)
sizeof (zio_t), 0, NULL, NULL, NULL, NULL, NULL, 0);
zio_link_cache = kmem_cache_create("zio_link_cache",
sizeof (zio_link_t), 0, NULL, NULL, NULL, NULL, NULL, 0);
+ if (!zio_use_uma)
+ goto out;
/*
* For small buffers, we want a cache for each multiple of
@@ -193,6 +195,7 @@ zio_init(void)
if (zio_data_buf_cache[c - 1] == NULL)
zio_data_buf_cache[c - 1] = zio_data_buf_cache[c];
}
+out:
/*
* The zio write taskqs have 1 thread per cpu, allow 1/2 of the taskqs
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