u-boot.git/disk, branch v2016.05-rc3

iso: Allow 512 byte sector size

2016-04-18T21:11:35+00:00

Real CD-ROMs are pretty obsolete these days. Usually people still keep
iso files around, but just put them on USB sticks or SD cards and expect
them to "just work".

To support this use case with El Torito images, add support for 512 byte
sector size to the iso parsing code.

Signed-off-by: Alexander Graf

iso: Start with partition 1

2016-04-18T21:11:34+00:00

The generic partition code treats partition 0 as "whole disk". So
we should start with partition 1 as the first partition in the iso
partition table.

Signed-off-by: Alexander Graf

iso: Make little endian and 64bit safe

2016-04-18T21:11:33+00:00

The iso partition table implementation has a few endian and 64bit
problems. Clean it up a bit to become endian and bitness safe.

Signed-off-by: Alexander Graf

dm: part: fix missing driver name in debug print

2016-04-14T17:51:39+00:00

Fixes the following warning with PART_DEBUG enabled:
disk/part.c: In function ‘get_partition_info’:
disk/part.c:372:3: warning: format ‘%s’ expects a matching ‘char *’ argument [-Wformat]

Signed-off-by: Nishanth Menon

drivers: block: add block device cache

2016-04-01T21:18:27+00:00

Add a block device cache to speed up repeated reads of block devices by
various filesystems.

This small amount of cache can dramatically speed up filesystem
operations by skipping repeated reads of common areas of a block
device (typically directory structures).

This has shown to have some benefit on FAT filesystem operations of
loading a kernel and RAM disk, but more dramatic benefits on ext4
filesystems when the kernel and/or RAM disk are spread across
multiple extent header structures as described in commit fc0fc50.

The cache is implemented through a minimal list (block_cache) maintained
in most-recently-used order and count of the current number of entries
(cache_count). It uses a maximum block count setting to prevent copies
of large block reads and an upper bound on the number of cached areas.

The maximum number of entries in the cache defaults to 32 and the maximum
number of blocks per cache entry has a default of 2, which has shown to
produce the best results on testing of ext4 and FAT filesystems.

The 'blkcache' command (enabled through CONFIG_CMD_BLOCK_CACHE) allows
changing these values and can be used to tune for a particular filesystem
layout.

Signed-off-by: Eric Nelson

part_efi: Drop NULL check in part_get_info_efi()

2016-03-22T16:16:19+00:00

This cannot be NULL since part_get_info() calls this function and requires
it to be non-NULL.

Reported-by: Coverity (CID: 138497)

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

part_efi: Drop the NULL check on dev_desc in part_print_efi()

2016-03-22T16:16:19+00:00

This cannot be NULL since part_print() calls this function and requires it
to be non-NULL.

Reported-by: Coverity (CID: 138498)
Signed-off-by: Simon Glass 
Reviewed-by: Tom Rini

part_iso: Drop the customer unaligned access functions

2016-03-22T16:16:18+00:00

One of these is causing a coverity warning. Drop these functions and use the
standard U-Boot ones instead.

Reported-by: Coverity (CID: 138499)

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

disk/part.c: Expose list of available block drivers

2016-03-15T19:19:22+00:00

We have a pretty nice and generic interface to ask for a specific block
device. However, that one is still based around the magic notion that
we know the driver name.

In order to be able to write fully generic disk access code, expose the
currently internal list to other source files so that they can scan through
all available block drivers.

Signed-off-by: Alexander Graf 
Reviewed-by: Simon Glass 
Tested-by: Simon Glass

part: Rename test_part_xx() and print_part_xx()

2016-03-14T21:34:50+00:00

Rename these functions so that part_ is at the start. This more clearly
identifies these functions as partition functions.

Signed-off-by: Simon Glass