linux-toradex.git/fs/ufs/util.h, branch v3.7.2

ufs: use little-endian bitops

2011-03-24T02:46:19+00:00

As a preparation for removing ext2 non-atomic bit operations from
asm/bitops.h.  This converts ext2 non-atomic bit operations to
little-endian bit operations.

Signed-off-by: Akinobu Mita 
Cc: Evgeniy Dushistov 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

remove SWRITE* I/O types

2010-08-18T05:09:01+00:00

These flags aren't real I/O types, but tell ll_rw_block to always
lock the buffer instead of giving up on a failed trylock.

Instead add a new write_dirty_buffer helper that implements this semantic
and use it from the existing SWRITE* callers.  Note that the ll_rw_block
code had a bug where it didn't promote WRITE_SYNC_PLUG properly, which
this patch fixes.

In the ufs code clean up the helper that used to call ll_rw_block
to mirror sync_dirty_buffer, which is the function it implements for
compound buffers.

Signed-off-by: Christoph Hellwig 
Signed-off-by: Al Viro

clean up write_begin usage for directories in pagecache

2010-08-09T20:47:31+00:00

For filesystem that implement directories in pagecache we call
block_write_begin with an already allocated page for this code, while the
normal regular file write path uses the default block_write_begin behaviour.

Get rid of the __foofs_write_begin helper and opencode the normal write_begin
call in foofs_write_begin, while adding a new foofs_prepare_chunk helper for
the directory code.  The added benefit is that foofs_prepare_chunk has
a much saner calling convention.

Note that the interruptible flag passed into block_write_begin is always
ignored if we already pass in a page (see next patch for details), and
we never were doing truncations of exessive blocks for this case either so we
can switch directly to block_write_begin_newtrunc.

Signed-off-by: Christoph Hellwig 
Signed-off-by: Al Viro

ufs: fix parenthesisation in ufs_set_fs_state()

2008-02-24T01:12:13+00:00

This bug snuck in with

commit 252e211e90ce56bf005cb533ad5a297c18c19407
Author: Mark Fortescue 
Date:   Tue Oct 16 23:26:31 2007 -0700

    Add in SunOS 4.1.x compatible mode for UFS

Signed-off-by: Roel Kluin <12o3l@tiscali.nl>
Acked-by: Evgeniy Dushistov 
Cc: Mark Fortescue 
Cc: 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Add in SunOS 4.1.x compatible mode for UFS

2007-10-17T15:42:49+00:00

Add in support for SunOS 4.1.x flavor of BSD 4.2 UFS filing system Macros have
been put in to alow suport for the old static table Cylinder Groups but this
implementation does not use them yet.

This also fixes Solaris UFS filing system access by disabling fast symbolic
links as Sun's version of UFS does not support on-disk fast symbolic links.

Tested by:
  Ppartitioning a new disk using SunOS 4.1.1, creating a UFS filing system on
  one of the partitions and writing some files to the filing system.
  Using Linux-2.6.22 (patched) to read the files and then write a shed load of
  files to the UFS partition.
  Using SunOS 4.1.1 to verify the filing system is OK and to check the files.
The test host is a sun4c SS1 Clone.

[akpm@linux-foundation.org: coding style fixes]
[adobriyan@gmail.com: fix oops]
Signed-off-by: Mark Fortescue 
Cc: Evgeniy Dushistov 
Signed-off-by: Alexey Dobriyan 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

ufs: convert to new aops

2007-10-16T16:42:57+00:00

Signed-off-by: Nick Piggin 
Cc: Evgeniy Dushistov 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] ufs2 write: block allocation update

2007-02-12T17:48:40+00:00

Patch adds ability to work with 64bit metadata, this made by replacing work
with 32bit pointers by inline functions.

Signed-off-by: Evgeniy Dushistov 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] fs: ufs add missing bracket

2006-12-07T16:39:44+00:00

Signed-off-by: Mariusz Kozlowski 
Cc: Evgeniy Dushistov 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] ufs: truncate should allocate block for last byte

2006-07-01T16:56:03+00:00

This patch fixes buggy behaviour of UFS
in such kind of scenario:
open(, O_TRUNC...)
ftruncate(, 1024)
ftruncate(, 0)

Such a scenario causes ufs_panic and remount read-only.  This happen
because of according to specification UFS should always allocate block for
last byte, and many parts of our implementation rely on this, but
`ufs_truncate' doesn't care about this.

To make possible return error code and to know about old size, this patch
removes `truncate' from ufs inode_operations and uses `setattr' method to
call ufs_truncate.

Signed-off-by: Evgeniy Dushistov 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] ufs: ubh_ll_rw_block cleanup

2006-06-25T17:01:04+00:00

In ufs code there is function: ubh_ll_rw_block, it has parameter how many
ufs_buffer_head it should handle, but it always called with "1" on the place
of this parameter.  This patch removes unused parameter of "ubh_ll_wr_block".

Signed-off-by: Evgeniy Dushistov 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds