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-rw-r--r--lib/hashtable.c12
1 files changed, 8 insertions, 4 deletions
diff --git a/lib/hashtable.c b/lib/hashtable.c
index b747f1f..57802cf 100644
--- a/lib/hashtable.c
+++ b/lib/hashtable.c
@@ -45,6 +45,9 @@
# include <linux/string.h>
#endif
+#ifndef CONFIG_ENV_MIN_ENTRIES /* minimum number of entries */
+#define CONFIG_ENV_MIN_ENTRIES 64
+#endif
#ifndef CONFIG_ENV_MAX_ENTRIES /* maximum number of entries */
#define CONFIG_ENV_MAX_ENTRIES 512
#endif
@@ -647,13 +650,14 @@ int himport_r(struct hsearch_data *htab,
* (CONFIG_ENV_SIZE). This heuristics will result in
* unreasonably large numbers (and thus memory footprint) for
* big flash environments (>8,000 entries for 64 KB
- * envrionment size), so we clip it to a reasonable value
- * (which can be overwritten in the board config file if
- * needed).
+ * envrionment size), so we clip it to a reasonable value.
+ * On the other hand we need to add some more entries for free
+ * space when importing very small buffers. Both boundaries can
+ * be overwritten in the board config file if needed.
*/
if (!htab->table) {
- int nent = size / 8;
+ int nent = CONFIG_ENV_MIN_ENTRIES + size / 8;
if (nent > CONFIG_ENV_MAX_ENTRIES)
nent = CONFIG_ENV_MAX_ENTRIES;