u-boot.git/fs/ext4, branch v2013.04

Consolidate bool type

2013-04-01T20:33:52+00:00

'bool' is defined in random places. This patch consolidates them into a
single header file include/linux/types.h, using stdbool.h introduced in C99.

All other #define, typedef and enum are removed. They are all consistent with
true = 1, false = 0.

Replace FALSE, False with false. Replace TRUE, True with true.
Skip *.py, *.php, lib/* files.

Signed-off-by: York Sun

fs: Move ls and read methods into ext4, fat

2013-03-04T19:19:56+00:00

It doesn't make a lot of sense to have these methods in fs.c. They are
filesystem-specific, not generic code. Add each to the relevant
filesystem and remove the associated #ifdefs in fs.c.

Signed-off-by: Simon Glass 
Reviewed-by: Tom Rini

ext4: Split write support into its own file

2013-03-04T19:19:56+00:00

This code seems to be entirely othogonal, so remove the #ifdef and put
the condition in the Makefile instead.

Signed-off-by: Simon Glass

fs:ext4:write: Initialize cache aligned filename buffer

2012-12-07T15:47:53+00:00

The filename buffer is allocated dynamically. It must be cache aligned.
Moreover, it is necessary to erase its content before we use it for
file name operations.

This prevents from corruption of written file names.

Signed-off-by: Lukasz Majewski 
Signed-off-by: Kyungmin Park

fs:ext4:fix: Code refactoring to suppress compiler warnings

2012-12-07T15:47:53+00:00

Several fixes to suppress compiler's (eldk-5.[12].x  gcc 4.6)
warning  [-Wunused-but-set-variable]

Signed-off-by: Lukasz Majewski 
Signed-off-by: Kyungmin Park

fs:ext4:write: Store block device descriptor in file system structure

2012-12-07T15:47:52+00:00

The device block descriptor (block_dev_desc_t) )shall be stored at
ext4 early code (at ext4fs_set_blk_dev in this case) to be available
for latter use (like put_ext4()).

Signed-off-by: Lukasz Majewski 
Signed-off-by: Kyungmin Park

fs:ext4:write: Add lldiv and do_div to perform 64-32 bits division

2012-12-07T15:47:52+00:00

The ext4write code has been using direct calls to 64-32 division
(/ and %).

Officially supported u-boot toolchains (eldk-5.[12].x) generate calls
to __aeabi_uldivmod(), which is niether defined in the toolchain libs
nor u-boot source tree.

Due to that, when the ext4write command has been executed, "undefined
instruction" execption was generated (since the __aeabi_uldivmod()
is not provided).

To fix this error, lldiv() for division and do_div() for modulo have
been used.

Those two functions are recommended for performing 64-32 bit number
division in u-boot.

Signed-off-by: Lukasz Majewski 
Signed-off-by: Kyungmin Park

fs: separate CONFIG_FS_{FAT, EXT4} from CONFIG_CMD_{FAT, EXT*}

2012-10-29T21:21:19+00:00

This makes the FAT and ext4 filesystem implementations build if
CONFIG_FS_{FAT,EXT4} are defined, rather than basing the build on
whether CONFIG_CMD_{FAT,EXT*} are defined. This will allow the
filesystems to be built separately from the filesystem-specific commands
that use them. This paves the way for the creation of filesystem-generic
commands that used the filesystems, without requiring the filesystem-
specific commands.

Minor documentation changes are made for this change.

The new config options are automatically selected by the old config
options to retain backwards-compatibility.

Signed-off-by: Stephen Warren 
Reviewed-by: Benoît Thébaudeau

ext4: Rename block group descriptor table from gd to bgd

2012-10-04T01:21:33+00:00

On x86 machines gd is unfortunately a #define, so we should avoid using
gd for anything. This patch changes uses of gd to bgd so that ext4fs
can be used on x86.

A better fix would be to remove the #define in x86, but I'm not sure
how to do that.

Signed-off-by: Simon Glass

cmd_extX: use common get_device_and_partition function

2012-09-25T21:46:55+00:00

Convert ext2/4 load, ls, and write functions to use common device and
partition parsing function. With the common function "dev:part" can come
from the environment and a '-' can be used in that case.

Signed-off-by: Rob Herring