Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  perf sched: Fix build failure on sparc
  perf bench: Add "all" pseudo subsystem and "all" pseudo suite
  perf tools: Introduce perf_session class
  perf symbols: Ditch dso->find_symbol
  perf symbols: Allow lookups by symbol name too
  perf symbols: Add missing "Variables" entry to map_type__name
  perf symbols: Add support for 'variable' symtabs
  perf symbols: Introduce ELF counterparts to symbol_type__is_a
  perf symbols: Introduce symbol_type__is_a
  perf symbols: Rename kthreads to kmaps, using another abstraction for it
  perf tools: Allow building for ARM
  hw-breakpoints: Handle bad modify_user_hw_breakpoint off-case return value
  perf tools: Allow cross compiling
  tracing, slab: Fix no callsite ifndef CONFIG_KMEMTRACE
  tracing, slab: Define kmem_cache_alloc_notrace ifdef CONFIG_TRACING

Trivial conflict due to different fixes to modify_user_hw_breakpoint()
in include/linux/hw_breakpoint.h

1 files changed, 11 insertions, 60 deletions

diff --git a/tools/perf/util/data_map.c b/tools/perf/util/data_map.c
index 59b65d0bd7c1..6d46dda53a29 100644
--- a/tools/perf/util/data_map.c
+++ b/tools/perf/util/data_map.c
@@ -129,23 +129,16 @@ out:
         return err;
 }
 
-int mmap_dispatch_perf_file(struct perf_header **pheader,
-                            const char *input_name,
-                            int force,
-                            int full_paths,
-                            int *cwdlen,
-                            char **cwd)
+int perf_session__process_events(struct perf_session *self,
+                                 int full_paths, int *cwdlen, char **cwd)
 {
         int err;
-        struct perf_header *header;
         unsigned long head, shift;
         unsigned long offset = 0;
-        struct stat input_stat;
         size_t  page_size;
         u64 sample_type;
         event_t *event;
         uint32_t size;
-        int input;
         char *buf;
 
         if (curr_handler == NULL) {
@@ -155,56 +148,19 @@ int mmap_dispatch_perf_file(struct perf_header **pheader,
 
         page_size = getpagesize();
 
-        input = open(input_name, O_RDONLY);
-        if (input < 0) {
-                pr_err("Failed to open file: %s", input_name);
-                if (!strcmp(input_name, "perf.data"))
-                        pr_err("  (try 'perf record' first)");
-                pr_err("\n");
-                return -errno;
-        }
-
-        if (fstat(input, &input_stat) < 0) {
-                pr_err("failed to stat file");
-                err = -errno;
-                goto out_close;
-        }
-
-        err = -EACCES;
-        if (!force && input_stat.st_uid && (input_stat.st_uid != geteuid())) {
-                pr_err("file: %s not owned by current user or root\n",
-                        input_name);
-                goto out_close;
-        }
-
-        if (input_stat.st_size == 0) {
-                pr_info("zero-sized file, nothing to do!\n");
-                goto done;
-        }
-
-        err = -ENOMEM;
-        header = perf_header__new();
-        if (header == NULL)
-                goto out_close;
-
-        err = perf_header__read(header, input);
-        if (err < 0)
-                goto out_delete;
-        *pheader = header;
-        head = header->data_offset;
-
-        sample_type = perf_header__sample_type(header);
+        head = self->header.data_offset;
+        sample_type = perf_header__sample_type(&self->header);
 
         err = -EINVAL;
         if (curr_handler->sample_type_check &&
             curr_handler->sample_type_check(sample_type) < 0)
-                goto out_delete;
+                goto out_err;
 
         if (!full_paths) {
                 if (getcwd(__cwd, sizeof(__cwd)) == NULL) {
                         pr_err("failed to get the current directory\n");
                         err = -errno;
-                        goto out_delete;
+                        goto out_err;
                 }
                 *cwd = __cwd;
                 *cwdlen = strlen(*cwd);
@@ -219,11 +175,11 @@ int mmap_dispatch_perf_file(struct perf_header **pheader,
 
 remap:
         buf = mmap(NULL, page_size * mmap_window, PROT_READ,
-                   MAP_SHARED, input, offset);
+                   MAP_SHARED, self->fd, offset);
         if (buf == MAP_FAILED) {
                 pr_err("failed to mmap file\n");
                 err = -errno;
-                goto out_delete;
+                goto out_err;
         }
 
 more:
@@ -273,19 +229,14 @@ more:
 
         head += size;
 
-        if (offset + head >= header->data_offset + header->data_size)
+        if (offset + head >= self->header.data_offset + self->header.data_size)
                 goto done;
 
-        if (offset + head < (unsigned long)input_stat.st_size)
+        if (offset + head < self->size)
                 goto more;
 
 done:
         err = 0;
-out_close:
-        close(input);
-
+out_err:
         return err;
-out_delete:
-        perf_header__delete(header);
-        goto out_close;
 }