Merge branch 'perf/core' into perf/uprobes

Merge in latest upstream (and the latest perf development tree),
to prepare for tooling changes, and also to pick up v3.4 MM
changes that the uprobes code needs to take care of.

Signed-off-by: Ingo Molnar <mingo@kernel.org>

1 files changed, 1 insertions, 91 deletions

diff --git a/fs/nfs/pagelist.c b/fs/nfs/pagelist.c
index 5668f7c54c4..d21fceaa9f6 100644
--- a/fs/nfs/pagelist.c
+++ b/fs/nfs/pagelist.c
@@ -13,6 +13,7 @@
 #include <linux/file.h>
 #include <linux/sched.h>
 #include <linux/sunrpc/clnt.h>
+#include <linux/nfs.h>
 #include <linux/nfs3.h>
 #include <linux/nfs4.h>
 #include <linux/nfs_page.h>
@@ -106,36 +107,6 @@ void nfs_unlock_request(struct nfs_page *req)
 	nfs_release_request(req);
 }
 
-/**
- * nfs_set_page_tag_locked - Tag a request as locked
- * @req:
- */
-int nfs_set_page_tag_locked(struct nfs_page *req)
-{
-	if (!nfs_lock_request_dontget(req))
-		return 0;
-	if (test_bit(PG_MAPPED, &req->wb_flags))
-		radix_tree_tag_set(&NFS_I(req->wb_context->dentry->d_inode)->nfs_page_tree, req->wb_index, NFS_PAGE_TAG_LOCKED);
-	return 1;
-}
-
-/**
- * nfs_clear_page_tag_locked - Clear request tag and wake up sleepers
- */
-void nfs_clear_page_tag_locked(struct nfs_page *req)
-{
-	if (test_bit(PG_MAPPED, &req->wb_flags)) {
-		struct inode *inode = req->wb_context->dentry->d_inode;
-		struct nfs_inode *nfsi = NFS_I(inode);
-
-		spin_lock(&inode->i_lock);
-		radix_tree_tag_clear(&nfsi->nfs_page_tree, req->wb_index, NFS_PAGE_TAG_LOCKED);
-		nfs_unlock_request(req);
-		spin_unlock(&inode->i_lock);
-	} else
-		nfs_unlock_request(req);
-}
-
 /*
  * nfs_clear_request - Free up all resources allocated to the request
  * @req:
@@ -425,67 +396,6 @@ void nfs_pageio_cond_complete(struct nfs_pageio_descriptor *desc, pgoff_t index)
 	}
 }
 
-#define NFS_SCAN_MAXENTRIES 16
-/**
- * nfs_scan_list - Scan a list for matching requests
- * @nfsi: NFS inode
- * @dst: Destination list
- * @idx_start: lower bound of page->index to scan
- * @npages: idx_start + npages sets the upper bound to scan.
- * @tag: tag to scan for
- *
- * Moves elements from one of the inode request lists.
- * If the number of requests is set to 0, the entire address_space
- * starting at index idx_start, is scanned.
- * The requests are *not* checked to ensure that they form a contiguous set.
- * You must be holding the inode's i_lock when calling this function
- */
-int nfs_scan_list(struct nfs_inode *nfsi,
-		struct list_head *dst, pgoff_t idx_start,
-		unsigned int npages, int tag)
-{
-	struct nfs_page *pgvec[NFS_SCAN_MAXENTRIES];
-	struct nfs_page *req;
-	pgoff_t idx_end;
-	int found, i;
-	int res;
-	struct list_head *list;
-
-	res = 0;
-	if (npages == 0)
-		idx_end = ~0;
-	else
-		idx_end = idx_start + npages - 1;
-
-	for (;;) {
-		found = radix_tree_gang_lookup_tag(&nfsi->nfs_page_tree,
-				(void **)&pgvec[0], idx_start,
-				NFS_SCAN_MAXENTRIES, tag);
-		if (found <= 0)
-			break;
-		for (i = 0; i < found; i++) {
-			req = pgvec[i];
-			if (req->wb_index > idx_end)
-				goto out;
-			idx_start = req->wb_index + 1;
-			if (nfs_set_page_tag_locked(req)) {
-				kref_get(&req->wb_kref);
-				radix_tree_tag_clear(&nfsi->nfs_page_tree,
-						req->wb_index, tag);
-				list = pnfs_choose_commit_list(req, dst);
-				nfs_list_add_request(req, list);
-				res++;
-				if (res == INT_MAX)
-					goto out;
-			}
-		}
-		/* for latency reduction */
-		cond_resched_lock(&nfsi->vfs_inode.i_lock);
-	}
-out:
-	return res;
-}
-
 int __init nfs_init_nfspagecache(void)
 {
 	nfs_page_cachep = kmem_cache_create("nfs_page",