[PATCH] comments on locking of task->comm

Add some comments about task->comm, to explain what it is near its definition
and provide some important pointers to its uses.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 3 insertions, 1 deletions

diff --git a/fs/exec.c b/fs/exec.c
index 52acff3f44f0..e56ee2437025 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -869,9 +869,11 @@ int flush_old_exec(struct linux_binprm * bprm)
         if (current->euid == current->uid && current->egid == current->gid)
                 current->mm->dumpable = 1;
         name = bprm->filename;
+
+        /* Copies the binary name from after last slash */
         for (i=0; (ch = *(name++)) != '\0';) {
                 if (ch == '/')
-                        i = 0;
+                        i = 0; /* overwrite what we wrote */
                 else
                         if (i < (sizeof(tcomm) - 1))
                                 tcomm[i++] = ch;