+- add patches.fixes/linux-post-2.6.3-20040220

[linux-flexiantxendom0-3.2.10.git] / fs / dcache.c

diff --git a/fs/dcache.c b/fs/dcache.c
index 95941d7..aa81a3a 100644 (file)
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -1531,6 +1531,16 @@ out:
        return ino;
 }
 
+static __initdata unsigned long dhash_entries;
+static int __init set_dhash_entries(char *str)
+{
+       if (!str)
+               return 0;
+       dhash_entries = simple_strtoul(str, &str, 0);
+       return 1;
+}
+__setup("dhash_entries=", set_dhash_entries);
+
 static void __init dcache_init(unsigned long mempages)
 {
        struct hlist_head *d;
@@ -1556,11 +1566,13 @@ static void __init dcache_init(unsigned long mempages)
        
        set_shrinker(DEFAULT_SEEKS, shrink_dcache_memory);
 
-#if PAGE_SHIFT < 13
-       mempages >>= (13 - PAGE_SHIFT);
-#endif
-       mempages *= sizeof(struct hlist_head);
-       for (order = 0; ((1UL << order) << PAGE_SHIFT) < mempages; order++)
+       if (!dhash_entries)
+               dhash_entries = PAGE_SHIFT < 13 ?
+                               mempages >> (13 - PAGE_SHIFT) :
+                               mempages << (PAGE_SHIFT - 13);
+
+       dhash_entries *= sizeof(struct hlist_head);
+       for (order = 0; ((1UL << order) << PAGE_SHIFT) < dhash_entries; order++)
                ;
 
        do {