11 files changed, 43 insertions, 64 deletions

diff --git a/Documentation/filesystems/9p.txt b/Documentation/filesystems/9p.txt
index b22abba78fed..13de64c7f0ab 100644
--- a/Documentation/filesystems/9p.txt
+++ b/Documentation/filesystems/9p.txt
@@ -25,6 +25,8 @@ Other applications are described in the following papers:
                 http://xcpu.org/papers/cellfs-talk.pdf
         * PROSE I/O: Using 9p to enable Application Partitions
                 http://plan9.escet.urjc.es/iwp9/cready/PROSE_iwp9_2006.pdf
+        * VirtFS: A Virtualization Aware File System pass-through
+                http://goo.gl/3WPDg
 
 USAGE
 =====
@@ -130,31 +132,20 @@ OPTIONS
 RESOURCES
 =========
 
-Our current recommendation is to use Inferno (http://www.vitanuova.com/nferno/index.html)
-as the 9p server.  You can start a 9p server under Inferno by issuing the
-following command:
-   ; styxlisten -A tcp!*!564 export '#U*'
+Protocol specifications are maintained on github:
+http://ericvh.github.com/9p-rfc/
 
-The -A specifies an unauthenticated export.  The 564 is the port # (you may
-have to choose a higher port number if running as a normal user).  The '#U*'
-specifies exporting the root of the Linux name space.  You may specify a
-subset of the namespace by extending the path: '#U*'/tmp would just export
-/tmp.  For more information, see the Inferno manual pages covering styxlisten
-and export.
+9p client and server implementations are listed on
+http://9p.cat-v.org/implementations
 
-A Linux version of the 9p server is now maintained under the npfs project
-on sourceforge (http://sourceforge.net/projects/npfs).  The currently
-maintained version is the single-threaded version of the server (named spfs)
-available from the same SVN repository.
+A 9p2000.L server is being developed by LLNL and can be found
+at http://code.google.com/p/diod/
 
 There are user and developer mailing lists available through the v9fs project
 on sourceforge (http://sourceforge.net/projects/v9fs).
 
-A stand-alone version of the module (which should build for any 2.6 kernel)
-is available via (http://github.com/ericvh/9p-sac/tree/master)
-
-News and other information is maintained on SWiK (http://swik.net/v9fs)
-and the Wiki (http://sf.net/apps/mediawiki/v9fs/index.php).
+News and other information is maintained on a Wiki.
+(http://sf.net/apps/mediawiki/v9fs/index.php).
 
 Bug reports may be issued through the kernel.org bugzilla 
 (http://bugzilla.kernel.org)
diff --git a/Documentation/filesystems/Locking b/Documentation/filesystems/Locking
index 61b31acb9176..57d827d6071d 100644
--- a/Documentation/filesystems/Locking
+++ b/Documentation/filesystems/Locking
@@ -104,7 +104,7 @@ of the locking scheme for directory operations.
 prototypes:
         struct inode *(*alloc_inode)(struct super_block *sb);
         void (*destroy_inode)(struct inode *);
-        void (*dirty_inode) (struct inode *);
+        void (*dirty_inode) (struct inode *, int flags);
         int (*write_inode) (struct inode *, struct writeback_control *wbc);
         int (*drop_inode) (struct inode *);
         void (*evict_inode) (struct inode *);
@@ -126,7 +126,7 @@ locking rules:
                         s_umount
 alloc_inode:
 destroy_inode:
-dirty_inode:                            (must not sleep)
+dirty_inode:
 write_inode:
 drop_inode:                             !!!inode->i_lock!!!
 evict_inode:
diff --git a/Documentation/filesystems/configfs/configfs_example_explicit.c b/Documentation/filesystems/configfs/configfs_example_explicit.c
index fd53869f5633..1420233dfa55 100644
--- a/Documentation/filesystems/configfs/configfs_example_explicit.c
+++ b/Documentation/filesystems/configfs/configfs_example_explicit.c
@@ -464,9 +464,8 @@ static int __init configfs_example_init(void)
         return 0;
 
 out_unregister:
-        for (; i >= 0; i--) {
+        for (i--; i >= 0; i--)
                 configfs_unregister_subsystem(example_subsys[i]);
-        }
 
         return ret;
 }
@@ -475,9 +474,8 @@ static void __exit configfs_example_exit(void)
 {
         int i;
 
-        for (i = 0; example_subsys[i]; i++) {
+        for (i = 0; example_subsys[i]; i++)
                 configfs_unregister_subsystem(example_subsys[i]);
-        }
 }
 
 module_init(configfs_example_init);
diff --git a/Documentation/filesystems/configfs/configfs_example_macros.c b/Documentation/filesystems/configfs/configfs_example_macros.c
index d8e30a0378aa..327dfbc640a9 100644
--- a/Documentation/filesystems/configfs/configfs_example_macros.c
+++ b/Documentation/filesystems/configfs/configfs_example_macros.c
@@ -427,9 +427,8 @@ static int __init configfs_example_init(void)
         return 0;
 
 out_unregister:
-        for (; i >= 0; i--) {
+        for (i--; i >= 0; i--)
                 configfs_unregister_subsystem(example_subsys[i]);
-        }
 
         return ret;
 }
@@ -438,9 +437,8 @@ static void __exit configfs_example_exit(void)
 {
         int i;
 
-        for (i = 0; example_subsys[i]; i++) {
+        for (i = 0; example_subsys[i]; i++)
                 configfs_unregister_subsystem(example_subsys[i]);
-        }
 }
 
 module_init(configfs_example_init);
diff --git a/Documentation/filesystems/ext4.txt b/Documentation/filesystems/ext4.txt
index c79ec58fd7f6..3ae9bc94352a 100644
--- a/Documentation/filesystems/ext4.txt
+++ b/Documentation/filesystems/ext4.txt
@@ -226,10 +226,6 @@ acl			Enables POSIX Access Control Lists support.
 noacl                   This option disables POSIX Access Control List
                         support.
 
-reservation
-
-noreservation
-
 bsddf           (*)     Make 'df' act like BSD.
 minixdf                 Make 'df' act like Minix.
 
diff --git a/Documentation/filesystems/nfs/idmapper.txt b/Documentation/filesystems/nfs/idmapper.txt
index b9b4192ea8b5..9c8fd6148656 100644
--- a/Documentation/filesystems/nfs/idmapper.txt
+++ b/Documentation/filesystems/nfs/idmapper.txt
@@ -47,8 +47,8 @@ request-key will find the first matching line and corresponding program.  In
 this case, /some/other/program will handle all uid lookups and
 /usr/sbin/nfs.idmap will handle gid, user, and group lookups.
 
-See <file:Documentation/keys-request-keys.txt> for more information about the
-request-key function.
+See <file:Documentation/security/keys-request-keys.txt> for more information
+about the request-key function.
 
 
 =========
diff --git a/Documentation/filesystems/ocfs2.txt b/Documentation/filesystems/ocfs2.txt
index 9ed920a8cd79..7618a287aa41 100644
--- a/Documentation/filesystems/ocfs2.txt
+++ b/Documentation/filesystems/ocfs2.txt
@@ -46,9 +46,15 @@ errors=panic		Panic and halt the machine if an error occurs.
 intr            (*)     Allow signals to interrupt cluster operations.
 nointr                  Do not allow signals to interrupt cluster
                         operations.
+noatime                 Do not update access time.
+relatime(*)             Update atime if the previous atime is older than
+                        mtime or ctime
+strictatime             Always update atime, but the minimum update interval
+                        is specified by atime_quantum.
 atime_quantum=60(*)     OCFS2 will not update atime unless this number
                         of seconds has passed since the last update.
-                        Set to zero to always update atime.
+                        Set to zero to always update atime. This option need
+                        work with strictatime.
 data=ordered    (*)     All data are forced directly out to the main file
                         system prior to its metadata being committed to the
                         journal.
diff --git a/Documentation/filesystems/proc.txt b/Documentation/filesystems/proc.txt
index b0b814d75ca1..f48178024067 100644
--- a/Documentation/filesystems/proc.txt
+++ b/Documentation/filesystems/proc.txt
@@ -574,6 +574,12 @@ The contents of each smp_affinity file is the same by default:
   > cat /proc/irq/0/smp_affinity
   ffffffff
 
+There is an alternate interface, smp_affinity_list which allows specifying
+a cpu range instead of a bitmask:
+
+  > cat /proc/irq/0/smp_affinity_list
+  1024-1031
+
 The default_smp_affinity mask applies to all non-active IRQs, which are the
 IRQs which have not yet been allocated/activated, and hence which lack a
 /proc/irq/[0-9]* directory.
@@ -583,12 +589,13 @@ reports itself as being attached. This hardware locality information does not
 include information about any possible driver locality preference.
 
 prof_cpu_mask specifies which CPUs are to be profiled by the system wide
-profiler. Default value is ffffffff (all cpus).
+profiler. Default value is ffffffff (all cpus if there are only 32 of them).
 
 The way IRQs are routed is handled by the IO-APIC, and it's Round Robin
 between all the CPUs which are allowed to handle it. As usual the kernel has
 more info than you and does a better job than you, so the defaults are the
-best choice for almost everyone.
+best choice for almost everyone.  [Note this applies only to those IO-APIC's
+that support "Round Robin" interrupt distribution.]
 
 There are  three  more  important subdirectories in /proc: net, scsi, and sys.
 The general  rule  is  that  the  contents,  or  even  the  existence of these
@@ -836,7 +843,6 @@ Provides counts of softirq handlers serviced since boot time, for each cpu.
  TASKLET:          0          0          0        290
    SCHED:      27035      26983      26971      26746
  HRTIMER:          0          0          0          0
-     RCU:       1678       1769       2178       2250
 
 
 1.3 IDE devices in /proc/ide
diff --git a/Documentation/filesystems/ubifs.txt b/Documentation/filesystems/ubifs.txt
index d7b13b01e980..8e4fab639d9c 100644
--- a/Documentation/filesystems/ubifs.txt
+++ b/Documentation/filesystems/ubifs.txt
@@ -115,28 +115,8 @@ ubi.mtd=0 root=ubi0:rootfs rootfstype=ubifs
 Module Parameters for Debugging
 ===============================
 
-When UBIFS has been compiled with debugging enabled, there are 3 module
+When UBIFS has been compiled with debugging enabled, there are 2 module
 parameters that are available to control aspects of testing and debugging.
-The parameters are unsigned integers where each bit controls an option.
-The parameters are:
-
-debug_msgs      Selects which debug messages to display, as follows:
-
-                Message Type                            Flag value
-
-                General messages                        1
-                Journal messages                        2
-                Mount messages                          4
-                Commit messages                         8
-                LEB search messages                     16
-                Budgeting messages                      32
-                Garbage collection messages             64
-                Tree Node Cache (TNC) messages          128
-                LEB properties (lprops) messages        256
-                Input/output messages                   512
-                Log messages                            1024
-                Scan messages                           2048
-                Recovery messages                       4096
 
 debug_chks      Selects extra checks that UBIFS can do while running:
 
@@ -154,11 +134,9 @@ debug_tsts	Selects a mode of testing, as follows:
 
                 Test mode                               Flag value
 
-                Force in-the-gaps method                2
                 Failure mode for recovery testing       4
 
-For example, set debug_msgs to 5 to display General messages and Mount
-messages.
+For example, set debug_chks to 3 to enable general and TNC checks.
 
 
 References
diff --git a/Documentation/filesystems/vfs.txt b/Documentation/filesystems/vfs.txt
index 21a7dc467bba..88b9f5519af9 100644
--- a/Documentation/filesystems/vfs.txt
+++ b/Documentation/filesystems/vfs.txt
@@ -211,7 +211,7 @@ struct super_operations {
         struct inode *(*alloc_inode)(struct super_block *sb);
         void (*destroy_inode)(struct inode *);
 
-        void (*dirty_inode) (struct inode *);
+        void (*dirty_inode) (struct inode *, int flags);
         int (*write_inode) (struct inode *, int);
         void (*drop_inode) (struct inode *);
         void (*delete_inode) (struct inode *);
diff --git a/Documentation/filesystems/xfs.txt b/Documentation/filesystems/xfs.txt
index 7bff3e4f35df..3fc0c31a6f5d 100644
--- a/Documentation/filesystems/xfs.txt
+++ b/Documentation/filesystems/xfs.txt
@@ -39,6 +39,12 @@ When mounting an XFS filesystem, the following options are accepted.
         drive level write caching to be enabled, for devices that
         support write barriers.
 
+  discard
+        Issue command to let the block device reclaim space freed by the
+        filesystem.  This is useful for SSD devices, thinly provisioned
+        LUNs and virtual machine images, but may have a performance
+        impact.  This option is incompatible with the nodelaylog option.
+
   dmapi
         Enable the DMAPI (Data Management API) event callouts.
         Use with the "mtpt" option.