1 files changed, 7 insertions, 2 deletions

diff --git a/Documentation/filesystems/Locking b/Documentation/filesystems/Locking
index c2992bc54f2f..680fb566b928 100644
--- a/Documentation/filesystems/Locking
+++ b/Documentation/filesystems/Locking
@@ -92,7 +92,6 @@ prototypes:
         void (*destroy_inode)(struct inode *);
         void (*dirty_inode) (struct inode *);
         int (*write_inode) (struct inode *, int);
-        void (*put_inode) (struct inode *);
         void (*drop_inode) (struct inode *);
         void (*delete_inode) (struct inode *);
         void (*put_super) (struct super_block *);
@@ -115,7 +114,6 @@ alloc_inode:		no	no	no
 destroy_inode:          no
 dirty_inode:            no                              (must not sleep)
 write_inode:            no
-put_inode:              no
 drop_inode:             no                              !!!inode_lock!!!
 delete_inode:           no
 put_super:              yes     yes     no
@@ -512,6 +510,7 @@ prototypes:
         void (*close)(struct vm_area_struct*);
         int (*fault)(struct vm_area_struct*, struct vm_fault *);
         int (*page_mkwrite)(struct vm_area_struct *, struct page *);
+        int (*access)(struct vm_area_struct *, unsigned long, void*, int, int);
 
 locking rules:
                 BKL     mmap_sem        PageLocked(page)
@@ -519,6 +518,7 @@ open:		no	yes
 close:          no      yes
 fault:          no      yes
 page_mkwrite:   no      yes             no
+access:         no      yes
 
         ->page_mkwrite() is called when a previously read-only page is
 about to become writeable. The file system is responsible for
@@ -527,6 +527,11 @@ taking to lock out truncate, the page range should be verified to be
 within i_size. The page mapping should also be checked that it is not
 NULL.
 
+        ->access() is called when get_user_pages() fails in
+acces_process_vm(), typically used to debug a process through
+/proc/pid/mem or ptrace.  This function is needed only for
+VM_IO | VM_PFNMAP VMAs.
+
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                         Dubious stuff