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* Revert "ext4fs: Add ext4 extent cache for read operations"Tom Rini2014-02-261-3/+0
| | | | | | | | | | This reverts commit fc0fc50f38a4d7d0554558076a79dfe8b0d78cd5. The author has asked on the mailing list that we revert this for now as it breaks write support. Reported-by: Łukasz Majewski <l.majewski@samsung.com> Signed-off-by: Tom Rini <trini@ti.com>
* ext4fs: Add ext4 extent cache for read operationsIonut Nicu2014-02-211-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In an ext4 filesystem, the inode corresponding to a file has a 60-byte area which contains an extent header structure and up to 4 extent structures (5 x 12 bytes). For files that need more than 4 extents to be represented (either files larger than 4 x 128MB = 512MB or smaller files but very fragmented), ext4 creates extent index structures. Each extent index points to a 4KB physical block where one extent header and additional 340 extents could be stored. The current u-boot ext4 code is very inefficient when it tries to load a file which has extent indexes. For each logical file block the code will read over and over again the same blocks of 4096 bytes from the disk. Since the extent tree in a file is always the same, we can cache the extent structures in memory before actually starting to read the file. This patch creates a simple linked list of structures holding information about all the extents used to represent a file. The list is sorted by the logical block number (ee_block) so that we can easily find the proper extent information for any file block. Without this patch, a 69MB file which had just one extent index pointing to a block with another 6 extents was read in approximately 3 minutes. With this patch applied the same file can be read in almost 20 seconds. Signed-off-by: Ionut Nicu <ioan.nicu.ext@nsn.com>
* Add GPL-2.0+ SPDX-License-Identifier to source filesWolfgang Denk2013-07-241-13/+1
| | | | | | Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
* fs/ext4: Support device block sizes != 512 bytesEgbert Eich2013-05-101-1/+1
| | | | | | | | | 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>
* Consolidate bool typeYork Sun2013-04-011-2/+0
| | | | | | | | | | | | | '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 <yorksun@freescale.com>
* fs: separate CONFIG_FS_{FAT, EXT4} from CONFIG_CMD_{FAT, EXT*}Stephen Warren2012-10-291-2/+2
| | | | | | | | | | | | | | | | | | 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 <swarren@nvidia.com> Reviewed-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
* cmd_extX: use common get_device_and_partition functionRob Herring2012-09-251-1/+0
| | | | | | | | 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>
* ext4: cache-align buffers so the invalidation worksStephen Warren2012-09-201-1/+6
| | | | | | | | | | | | | | | | | | | | | DMA buffer cache invalidation requires that buffers have cache-aligned buffer locations and sizes. Use memalign() and ALLOC_CACHE_ALIGN_BUFFER() to ensure this. On Tegra at least, without this fix, the following fail commands fail in u-boot-master/ext4, but succeeded at the branch's branch point in u-boot/master. With this fix, the commands work again: ext2ls mmc 0:1 / ext2load mmc 0:1 /boot/zImage Cc: Uma Shankar <uma.shankar@samsung.com> Cc: Manjunatha C Achar <a.manjunatha@samsung.com> Cc: Iqbal Shareef <iqbal.ams@samsung.com> Cc: Hakgoo Lee <goodguy.lee@samsung.com> Cc: Wolfgang Denk <wd@denx.de> Cc: Tom Rini <trini@ti.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
* ext4fs write supportUma Shankar2012-08-091-0/+25
| | | | | | | 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>
* ext4fs ls load supportUma Shankar2012-08-091-0/+63
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>
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