1 files changed, 0 insertions, 149 deletions

diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index ec254bff1893..8e2c8f36eba3 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -49,34 +49,6 @@
 
 #define NFSDDBG_FACILITY		NFSDDBG_FILEOP
 
-
-/*
- * This is a cache of readahead params that help us choose the proper
- * readahead strategy. Initially, we set all readahead parameters to 0
- * and let the VFS handle things.
- * If you increase the number of cached files very much, you'll need to
- * add a hash table here.
- */
-struct raparms {
-	struct raparms		*p_next;
-	unsigned int		p_count;
-	ino_t			p_ino;
-	dev_t			p_dev;
-	int			p_set;
-	struct file_ra_state	p_ra;
-	unsigned int		p_hindex;
-};
-
-struct raparm_hbucket {
-	struct raparms		*pb_head;
-	spinlock_t		pb_lock;
-} ____cacheline_aligned_in_smp;
-
-#define RAPARM_HASH_BITS	4
-#define RAPARM_HASH_SIZE	(1<<RAPARM_HASH_BITS)
-#define RAPARM_HASH_MASK	(RAPARM_HASH_SIZE-1)
-static struct raparm_hbucket	raparm_hash[RAPARM_HASH_SIZE];
-
 /* 
  * Called from nfsd_lookup and encode_dirent. Check if we have crossed 
  * a mount point.
@@ -822,67 +794,6 @@ nfsd_open_verified(struct svc_rqst *rqstp, struct svc_fh *fhp, umode_t type,
 	return err;
 }
 
-
-
-struct raparms *
-nfsd_init_raparms(struct file *file)
-{
-	struct inode *inode = file_inode(file);
-	dev_t dev = inode->i_sb->s_dev;
-	ino_t ino = inode->i_ino;
-	struct raparms	*ra, **rap, **frap = NULL;
-	int depth = 0;
-	unsigned int hash;
-	struct raparm_hbucket *rab;
-
-	hash = jhash_2words(dev, ino, 0xfeedbeef) & RAPARM_HASH_MASK;
-	rab = &raparm_hash[hash];
-
-	spin_lock(&rab->pb_lock);
-	for (rap = &rab->pb_head; (ra = *rap); rap = &ra->p_next) {
-		if (ra->p_ino == ino && ra->p_dev == dev)
-			goto found;
-		depth++;
-		if (ra->p_count == 0)
-			frap = rap;
-	}
-	depth = nfsdstats.ra_size;
-	if (!frap) {	
-		spin_unlock(&rab->pb_lock);
-		return NULL;
-	}
-	rap = frap;
-	ra = *frap;
-	ra->p_dev = dev;
-	ra->p_ino = ino;
-	ra->p_set = 0;
-	ra->p_hindex = hash;
-found:
-	if (rap != &rab->pb_head) {
-		*rap = ra->p_next;
-		ra->p_next   = rab->pb_head;
-		rab->pb_head = ra;
-	}
-	ra->p_count++;
-	nfsdstats.ra_depth[depth*10/nfsdstats.ra_size]++;
-	spin_unlock(&rab->pb_lock);
-
-	if (ra->p_set)
-		file->f_ra = ra->p_ra;
-	return ra;
-}
-
-void nfsd_put_raparams(struct file *file, struct raparms *ra)
-{
-	struct raparm_hbucket *rab = &raparm_hash[ra->p_hindex];
-
-	spin_lock(&rab->pb_lock);
-	ra->p_ra = file->f_ra;
-	ra->p_set = 1;
-	ra->p_count--;
-	spin_unlock(&rab->pb_lock);
-}
-
 /*
  * Grab and keep cached pages associated with a file in the svc_rqst
  * so that they can be passed to the network sendmsg/sendpage routines
@@ -2094,63 +2005,3 @@ nfsd_permission(struct svc_rqst *rqstp, struct svc_export *exp,
 
 	return err? nfserrno(err) : 0;
 }
-
-void
-nfsd_racache_shutdown(void)
-{
-	struct raparms *raparm, *last_raparm;
-	unsigned int i;
-
-	dprintk("nfsd: freeing readahead buffers.\n");
-
-	for (i = 0; i < RAPARM_HASH_SIZE; i++) {
-		raparm = raparm_hash[i].pb_head;
-		while(raparm) {
-			last_raparm = raparm;
-			raparm = raparm->p_next;
-			kfree(last_raparm);
-		}
-		raparm_hash[i].pb_head = NULL;
-	}
-}
-/*
- * Initialize readahead param cache
- */
-int
-nfsd_racache_init(int cache_size)
-{
-	int	i;
-	int	j = 0;
-	int	nperbucket;
-	struct raparms **raparm = NULL;
-
-
-	if (raparm_hash[0].pb_head)
-		return 0;
-	nperbucket = DIV_ROUND_UP(cache_size, RAPARM_HASH_SIZE);
-	nperbucket = max(2, nperbucket);
-	cache_size = nperbucket * RAPARM_HASH_SIZE;
-
-	dprintk("nfsd: allocating %d readahead buffers.\n", cache_size);
-
-	for (i = 0; i < RAPARM_HASH_SIZE; i++) {
-		spin_lock_init(&raparm_hash[i].pb_lock);
-
-		raparm = &raparm_hash[i].pb_head;
-		for (j = 0; j < nperbucket; j++) {
-			*raparm = kzalloc(sizeof(struct raparms), GFP_KERNEL);
-			if (!*raparm)
-				goto out_nomem;
-			raparm = &(*raparm)->p_next;
-		}
-		*raparm = NULL;
-	}
-
-	nfsdstats.ra_size = cache_size;
-	return 0;
-
-out_nomem:
-	dprintk("nfsd: kmalloc failed, freeing readahead buffers\n");
-	nfsd_racache_shutdown();
-	return -ENOMEM;
-}