Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core

Fixes and improvements for perf/core:

. Overhaul the tools/ makefiles, gluing them to the top level Makefile, from
  Borislav Petkov.

. Move the UI files from tools/perf/util/ui/ to tools/perf/ui/. Also move
  the GTK+ browser to tools/perf/ui/gtk/, from Namhyung Kim.

. Only fallback to sw cycles counter on ENOENT for the hw cycles, from
  Robert Richter

. Trivial fixes from Robert Richter

. Handle the autogenerated bison/flex files better, from Namhyung and Jiri Olsa.

. Navigate jump instructions in the annotate browser, just press enter or ->,
  still needs support for a jump navigation history, i.e. to go back.

. Search string in the annotate browser: same keys as vim:
     / forward
     n next backward/forward
     ? backward

. Clarify number of events/samples in the report header, from Ashay Rane

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>

1 files changed, 8 insertions, 3 deletions

diff --git a/include/linux/fs.h b/include/linux/fs.h
index 69cd5bb640f5..fa63f1b46103 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -389,6 +389,7 @@ struct inodes_stat_t {
 #include <linux/prio_tree.h>
 #include <linux/init.h>
 #include <linux/pid.h>
+#include <linux/bug.h>
 #include <linux/mutex.h>
 #include <linux/capability.h>
 #include <linux/semaphore.h>
@@ -1459,6 +1460,7 @@ struct super_block {
         u8 s_uuid[16];                          /* UUID */
 
         void                    *s_fs_info;     /* Filesystem private info */
+        unsigned int            s_max_links;
         fmode_t                 s_mode;
 
         /* Granularity of c/m/atime in ns.
@@ -1811,11 +1813,11 @@ static inline void inode_inc_iversion(struct inode *inode)
        spin_unlock(&inode->i_lock);
 }
 
-extern void touch_atime(struct vfsmount *mnt, struct dentry *dentry);
+extern void touch_atime(struct path *);
 static inline void file_accessed(struct file *file)
 {
         if (!(file->f_flags & O_NOATIME))
-                touch_atime(file->f_path.mnt, file->f_path.dentry);
+                touch_atime(&file->f_path);
 }
 
 int sync_inode(struct inode *inode, struct writeback_control *wbc);
@@ -2304,7 +2306,10 @@ extern struct inode * igrab(struct inode *);
 extern ino_t iunique(struct super_block *, ino_t);
 extern int inode_needs_sync(struct inode *inode);
 extern int generic_delete_inode(struct inode *inode);
-extern int generic_drop_inode(struct inode *inode);
+static inline int generic_drop_inode(struct inode *inode)
+{
+        return !inode->i_nlink || inode_unhashed(inode);
+}
 
 extern struct inode *ilookup5_nowait(struct super_block *sb,
                 unsigned long hashval, int (*test)(struct inode *, void *),