[PATCH 00/41] fs/adfs updates for 5.6

[PATCH 00/41] fs/adfs updates for 5.6

[Russell King - ARM Linux admin]

Hi,

This patch series updates the fs/adfs code in the kernel (which still
has users!)

- update inode timestamps to centisecond resolution time, as per the
  native format.
- consolidate and clean up map scanning code.
- consolidate and clean up and modernise directory handling code.
- restructure directory handling code to better improve the rudimentary
  write support we have.
- fix inode dropping; otherwise updates are lost on umount.
- add support for E and E+ format image files.

Patches based on v5.4; there have been no changes to fs/adfs during the
merge window.

This is also available from:

   git://git.armlinux.org.uk/~rmk/linux-arm.git adfs

with head SHA1 8901af013ecd.

 Documentation/filesystems/adfs.txt |  24 +++
 fs/adfs/adfs.h                     |  32 ++--
 fs/adfs/dir.c                      | 314 +++++++++++++++++++++++++--------
 fs/adfs/dir_f.c                    | 302 +++++++++-----------------------
 fs/adfs/dir_f.h                    |  52 +++---
 fs/adfs/dir_fplus.c                | 345 +++++++++++++++++++++----------------
 fs/adfs/dir_fplus.h                |   6 +-
 fs/adfs/inode.c                    |  64 +++----
 fs/adfs/map.c                      | 247 +++++++++++++++++++-------
 fs/adfs/super.c                    | 267 ++++++++++------------------
 10 files changed, 913 insertions(+), 740 deletions(-)

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTC broadband for 0.8mile line in suburbia: sync at 12.1Mbps down 622kbps up
According to speedtest.net: 11.9Mbps down 500kbps up

[PATCH 41/41] Documentation: update adfs filesystem documentation

[Russell King]

Add an introduction to adfs to its documentation detailing which formats
are supported by the module.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
---
 Documentation/filesystems/adfs.txt | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/Documentation/filesystems/adfs.txt b/Documentation/filesystems/adfs.txt
index 5949766353f7..0baa8e8c1fc1 100644
--- a/Documentation/filesystems/adfs.txt
+++ b/Documentation/filesystems/adfs.txt
@@ -1,3 +1,27 @@
+Filesystems supported by ADFS
+-----------------------------
+
+The ADFS module supports the following Filecore formats which have:
+
+- new maps
+- new directories or big directories
+
+In terms of the named formats, this means we support:
+
+- E and E+, with or without boot block
+- F and F+
+
+We fully support reading files from these filesystems, and writing to
+existing files within their existing allocation.  Essentially, we do
+not support changing any of the filesystem metadata.
+
+This is intended to support loopback mounted Linux native filesystems
+on a RISC OS Filecore filesystem, but will allow the data within files
+to be changed.
+
+If write support (ADFS_FS_RW) is configured, we allow rudimentary
+directory updates, specifically updating the access mode and timestamp.
+
 Mount options for ADFS
 ----------------------
 
-- 
2.20.1