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Use vmem_alloc() for zfs_ioc_userspace_many()

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The default buffer size when requesting multiple quota entries
is 100 times the zfs_useracct_t size.  In practice this works out
to exactly 27200 bytes.  Since this will be a short lived buffer
in a non-performance critical path it is preferable to vmem_alloc()
the needed memory.
This commit is contained in:
Brian Behlendorf 2011-05-20 14:23:18 -07:00
parent 4804b739e1
commit 2b8cad6159
1 changed files with 2 additions and 2 deletions
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4
module/zfs/zfs_ioctl.c
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@ -4094,7 +4094,7 @@ zfs_ioc_userspace_many(zfs_cmd_t *zc)
if (error) if (error)
return (error); return (error);
buf = kmem_alloc(bufsize, KM_SLEEP); buf = vmem_alloc(bufsize, KM_SLEEP);
error = zfs_userspace_many(zsb, zc->zc_objset_type, &zc->zc_cookie, error = zfs_userspace_many(zsb, zc->zc_objset_type, &zc->zc_cookie,
buf, &zc->zc_nvlist_dst_size); buf, &zc->zc_nvlist_dst_size);
@ -4104,7 +4104,7 @@ zfs_ioc_userspace_many(zfs_cmd_t *zc)
(void *)(uintptr_t)zc->zc_nvlist_dst, (void *)(uintptr_t)zc->zc_nvlist_dst,
zc->zc_nvlist_dst_size); zc->zc_nvlist_dst_size);
} }
kmem_free(buf, bufsize); vmem_free(buf, bufsize);
zfs_sb_rele(zsb, FTAG); zfs_sb_rele(zsb, FTAG);
return (error); return (error);