u-boot.git/fs/ext4, branch v2014.01

ext4fs: fix "invalid extent block" error

2014-01-20T15:09:40+00:00

For files where we actually have extent indexes following
an extent header (ext_block->eh_depth != 0), the do/while
loop from ext4fs_get_extent_block() does not select the
proper extent index structure.

For example, if we have:

ext_block->eh_depth = 1
ext_block->eh_entries = 1
fileblock = 0
index[0].ei_block = 0

the do/while loop will exit with i set to 0 and the
ext4fs_get_extent_block() function will return 0, even if
there was a valid extent index structure following the
header.

Signed-off-by: Ionut Nicu 
Signed-off-by: Mathias Rulf

ext4fs: use EXT2_BLOCK_SIZE instead of fs->blksz

2014-01-20T15:09:40+00:00

Using fs->blksz in ext4fs_get_extent_block() is not
correct since fs->blksz is not initialized on the
read path. Use EXT2_BLOCK_SIZE() instead which will
produce the desired output.

Signed-off-by: Ionut Nicu 
Signed-off-by: Mathias Rulf

fs/ext4: fix calling put_ext4 with truncated offset

2014-01-20T15:09:38+00:00

Curently, we are using 32 bit multiplication to calculate the offset,
so the result will always be 32 bit.
This can silently cause file system corruption when performing a write
operation on partition larger than 4 GiB.

This patch address the issue by simply promoting the terms to 64 bit,
and let compilers decide how to do the multiplication efficiently.

Signed-off-by: Ma Haijun

fs/ext4: fix partition size get truncated in calculation

2014-01-20T15:09:38+00:00

It may cause file system corruption when do a write operation.
This issue only affects boards that use 32 bit lbaint_t.

Signed-off-by: Ma Haijun

fs: descend into sub directories when it is necessary

2013-11-17T19:11:34+00:00

Signed-off-by: Masahiro Yamada

fs: convert makefiles to Kbuild style

2013-10-31T17:26:01+00:00

Signed-off-by: Masahiro Yamada

Add GPL-2.0+ SPDX-License-Identifier to source files

2013-07-24T13:44:38+00:00

Signed-off-by: Wolfgang Denk 
[trini: Fixup common/cmd_io.c]
Signed-off-by: Tom Rini

ext4fs: le32_to_cpu() used on a 16-bit field

2013-07-22T14:09:30+00:00

Fix reading ext4_extent_header struture on BE machines.  Some 16 bit
fields where converted to 32 bit fields, due to the byte swap on BE
machines the containing value was corrupted. Therefore reading ext4
filesystems on BE machines where broken before.

Signed-off-by: Rommel Custodio 
[sent via git-send-email; rework commit message]
Signed-off-by: Andreas Bießmann 
Reviewed-by: Simon Glass 
Tested-by: Simon Glass 
Tested-by: Lukasz Majewski

Fix ext2/ext4 filesystem accesses beyond 2TiB

2013-07-15T21:06:13+00:00

With CONFIG_SYS_64BIT_LBA, lbaint_t gets defined as a 64-bit type,
which is required to represent block numbers for storage devices that
exceed 2TiB (the block size usually is 512B), e.g. recent hard drives

We now use lbaint_t for partition offset to reflect the lbaint_t change,
and access partitions beyond or crossing the 2.1TiB limit.
This required changes to signature of ext4fs_devread(), and type of all
variables relatives to block sector.

ext2/ext4 fs uses logical block represented by a 32 bit value. Logical
block is a multiple of device block sector. To avoid overflow problem
when calling ext4fs_devread(), we need to cast the sector parameter.

Signed-off-by: Frédéric Leroy

ext4: assign get_fs()->dev_desc before using it

2013-05-24T14:04:23+00:00

Commit 50ce4c0 "fs/ext4: Support device block sizes != 512 bytes"
modified ext4fs_set_blk_dev() to calculate total_sect based on
get_fs()->dev_desc->log2blksz rather than SECTOR_SIZE. However, this
value wasn't yet assigned. Move the assignment earlier so the code
doesn't crash or hang.

Cc: Egbert Eich 
Tested-by: Tom Rini 
Signed-off-by: Stephen Warren