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-rw-r--r--module/zfs/arc.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/module/zfs/arc.c b/module/zfs/arc.c
index d6244d19e..25fdbdd2b 100644
--- a/module/zfs/arc.c
+++ b/module/zfs/arc.c
@@ -6519,11 +6519,11 @@ arc_init(void)
* If it has been set by a module parameter, take that.
* Otherwise, use a percentage of physical memory defined by
* zfs_dirty_data_max_percent (default 10%) with a cap at
- * zfs_dirty_data_max_max (default 25% of physical memory).
+ * zfs_dirty_data_max_max (default 4G or 25% of physical memory).
*/
if (zfs_dirty_data_max_max == 0)
- zfs_dirty_data_max_max = allmem *
- zfs_dirty_data_max_max_percent / 100;
+ zfs_dirty_data_max_max = MIN(4ULL * 1024 * 1024 * 1024,
+ allmem * zfs_dirty_data_max_max_percent / 100);
if (zfs_dirty_data_max == 0) {
zfs_dirty_data_max = allmem *