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2016-09-23ext4: Update ext2/3/4 superblock, group descriptor and inode structuresStefan Brüns
Most importantly, the superblock provides the used group descriptor size, which is required for the EXT4_FEATURE_INCOMPAT_64BIT. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
2016-09-23ext4: Use correct value for inode size even on revision 0 filesystemsStefan Brüns
fs->inodesz is already correctly (i.e. dependent on fs revision) initialized in ext4fs_mount. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
2016-09-23ext4: fix endianess problems in ext4 write supportMichael Walle
All fields were accessed directly instead of using the proper byte swap functions. Thus, ext4 write support was only usable on little-endian architectures. Fix this. Signed-off-by: Michael Walle <michael@walle.cc>
2016-09-23ext4: use kernel names for byte swapsMichael Walle
Instead of __{be,le}{16,32}_to_cpu use {be,le}{16,32}_to_cpu. Signed-off-by: Michael Walle <michael@walle.cc>
2016-09-23ext4: change structure fields to __le/__be typesMichael Walle
Change all the types of ext2/4 fields to little endian types and all the JBD fields to big endian types. Now we can use sparse (make C=1) to check for statements where we need byteswaps. Signed-off-by: Michael Walle <michael@walle.cc>
2013-07-24Add GPL-2.0+ SPDX-License-Identifier to source filesWolfgang Denk
Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
2013-07-15Fix ext2/ext4 filesystem accesses beyond 2TiBFrederic Leroy
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 <fredo@starox.org>
2013-05-10fs/ext4: Support device block sizes != 512 bytesEgbert Eich
The 512 byte block size was hard coded in the ext4 file systems. Large harddisks today support bigger block sizes typically 4096 bytes. This patch removes this limitation. Signed-off-by: Egbert Eich <eich@suse.com>
2012-10-29fs: add filesystem switch libary, implement ls and fsload commandsStephen Warren
Implement "ls" and "fsload" commands that act like {fat,ext2}{ls,load}, and transparently handle either file-system. This scheme could easily be extended to other filesystem types; I only didn't do it for zfs because I don't have any filesystems of that type to test with. Replace the implementation of {fat,ext[24]}{ls,load} with this new code too. Signed-off-by: Stephen Warren <swarren@nvidia.com>
2012-09-25cmd_extX: use common get_device_and_partition functionRob Herring
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 <rob.herring@calxeda.com>
2012-08-09ext4fs write supportUma Shankar
Signed-off-by: Uma Shankar <uma.shankar@samsung.com> Signed-off-by: Manjunatha C Achar <a.manjunatha@samsung.com> Signed-off-by: Iqbal Shareef <iqbal.ams@samsung.com> Signed-off-by: Hakgoo Lee <goodguy.lee@samsung.com>
2012-08-09ext4fs ls load supportUma Shankar
Signed-off-by: Uma Shankar <uma.shankar@samsung.com> Signed-off-by: Manjunatha C Achar <a.manjunatha@samsung.com> Signed-off-by: Iqbal Shareef <iqbal.ams@samsung.com> Signed-off-by: Hakgoo Lee <goodguy.lee@samsung.com>