parisc/unaligned: Rewrite inline assembly of emulate_ldh()

[linux-2.6-microblaze.git] / fs / dcache.c

diff --git a/fs/dcache.c b/fs/dcache.c
index 7d24ff7..c84269c 100644 (file)
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -84,6 +84,8 @@ const struct qstr empty_name = QSTR_INIT("", 0);
 EXPORT_SYMBOL(empty_name);
 const struct qstr slash_name = QSTR_INIT("/", 1);
 EXPORT_SYMBOL(slash_name);
+const struct qstr dotdot_name = QSTR_INIT("..", 2);
+EXPORT_SYMBOL(dotdot_name);
 
 /*
  * This is the single most critical data structure when it comes
@@ -113,10 +115,13 @@ static inline struct hlist_bl_head *in_lookup_hash(const struct dentry *parent,
        return in_lookup_hashtable + hash_32(hash, IN_LOOKUP_SHIFT);
 }
 
-
-/* Statistics gathering. */
-struct dentry_stat_t dentry_stat = {
-       .age_limit = 45,
+struct dentry_stat_t {
+       long nr_dentry;
+       long nr_unused;
+       long age_limit;         /* age in seconds */
+       long want_pages;        /* pages requested by system */
+       long nr_negative;       /* # of unused negative dentries */
+       long dummy;             /* Reserved for future use */
 };
 
 static DEFINE_PER_CPU(long, nr_dentry);
@@ -124,6 +129,10 @@ static DEFINE_PER_CPU(long, nr_dentry_unused);
 static DEFINE_PER_CPU(long, nr_dentry_negative);
 
 #if defined(CONFIG_SYSCTL) && defined(CONFIG_PROC_FS)
+/* Statistics gathering. */
+static struct dentry_stat_t dentry_stat = {
+       .age_limit = 45,
+};
 
 /*
  * Here we resort to our own counters instead of using generic per-cpu counters
@@ -165,14 +174,32 @@ static long get_nr_dentry_negative(void)
        return sum < 0 ? 0 : sum;
 }
 
-int proc_nr_dentry(struct ctl_table *table, int write, void *buffer,
-                  size_t *lenp, loff_t *ppos)
+static int proc_nr_dentry(struct ctl_table *table, int write, void *buffer,
+                         size_t *lenp, loff_t *ppos)
 {
        dentry_stat.nr_dentry = get_nr_dentry();
        dentry_stat.nr_unused = get_nr_dentry_unused();
        dentry_stat.nr_negative = get_nr_dentry_negative();
        return proc_doulongvec_minmax(table, write, buffer, lenp, ppos);
 }
+
+static struct ctl_table fs_dcache_sysctls[] = {
+       {
+               .procname       = "dentry-state",
+               .data           = &dentry_stat,
+               .maxlen         = 6*sizeof(long),
+               .mode           = 0444,
+               .proc_handler   = proc_nr_dentry,
+       },
+       { }
+};
+
+static int __init init_fs_dcache_sysctls(void)
+{
+       register_sysctl_init("fs", fs_dcache_sysctls);
+       return 0;
+}
+fs_initcall(init_fs_dcache_sysctls);
 #endif
 
 /*