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path: root/fs/ext4/ext4_common.c
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* ext4: Fix handling of sparse filesStefan Brüns2016-11-21-16/+15
| | | | | | | | | | A sparse file may have regions not mapped by any extents, at the start or at the end of the file, or anywhere between, thus not finding a matching extent region is never an error. Found by python filesystem tests. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
* ext4: Only write journal entries for modified blocks in unlink_filenameStefan Brüns2016-10-24-10/+13
| | | | | | | | | Instead of creating a journal entry for each directory block, even if the block is unmodified, only log the modified block. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
* ext4: Fix handling of direntlen in unlink_filenameStefan Brüns2016-10-24-28/+17
| | | | | | | | | | | | | | | | The direntlen checks were quite bogus, i.e. the loop termination used "len + offset == blocksize" (exact match only), and checked for a direntlen less than 0. The latter can never happen as the len is unsigned, this has been reported by Coverity, CID 153384. Use the same code as in search_dir for directory traversal. This code has the correct checks for direntlen >= sizeof(struct dirent), and offset < blocksize. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> Reported-by: Coverity (CID: 153383, 153384) Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
* ext4: cleanup unlink_filename functionStefan Brüns2016-10-24-14/+15
| | | | | | | | Use the same variable names as in search_dir, to make purpose of variables more obvious. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> Reviewed-by: Tom Rini <trini@konsulko.com>
* ext4: Revert rejection of 64bit enabled ext4 fsStefan Brüns2016-09-23-9/+0
| | | | | | | Enable mounting of ext4 fs with 64bit feature, as it is supported now. These had been disabled in 6f94ab6656ceffb3f2a972c8de4c554502b6f2b7. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
* ext4: Respect group descriptor size when adjusting free countsStefan Brüns2016-09-23-12/+41
| | | | | | Also adjust high 16/32 bits when free inode/block counts are modified. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
* ext4: Use helper function to access group descriptor and its fieldsStefan Brüns2016-09-23-60/+65
| | | | | | | | The descriptor size is variable, thus array indices are not generically applicable. The larger group descriptors also contain e.g. high parts of block numbers, which have to be read and written. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
* ext4: Use correct descriptor size when reading the block group descriptorStefan Brüns2016-09-23-4/+4
| | | | | | | The correct descriptor size must be used when calculating offsets, and also to read the correct amount of data. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
* ext4: Add helper functions for block group descriptor field accessStefan Brüns2016-09-23-0/+82
| | | | | | | | | The helper functions encapsulate access of the block group descriptors, independent of group descriptor size. The helpers also deal with the endianess of the fields, and with split fields like free_blocks/ free_blocks_high. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
* ext4: determine group descriptor size for 64bit featureStefan Brüns2016-09-23-4/+14
| | | | | | | If EXT4_FEATURE_INCOMPAT_64BIT is set, the descriptor can be read from the superblocks, otherwise it defaults to 32. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
* ext4: Correct block number handling, empty block vs. error codeStefan Brüns2016-09-23-3/+3
| | | | | | | | | | | | | | | | | | | read_allocated block may return block number 0, which is just an indicator a chunk of the file is not backed by a block, i.e. it is sparse. During file deletions, just continue with the next logical block, for other operations treat blocknumber <= 0 as an error. For writes, blocknumber 0 should never happen, as U-Boot always allocates blocks for the whole file. Reading already handles this correctly, i.e. the read buffer is 0-fillled. Not treating block 0 as sparse block leads to FS corruption, e.g. ./sandbox/u-boot -c 'host bind 0 ./sandbox/test/fs/3GB.ext4.img ; ext4write host 0 0 /2.5GB.file 1 ' The 2.5GB.file from the fs test is actually a sparse file. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
* ext4: Avoid out-of-bounds access of block bitmapStefan Brüns2016-09-23-22/+12
| | | | | | | | | | | | If the blocksize is 1024, count is initialized with 1. Incrementing count by 8 will never match (count == fs->blksz * 8), and ptr may be incremented beyond the buffer end if the bitmap is filled. Add the startblock offset after the loop. Remove the second loop, as only the first iteration will be done. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
* ext4: After completely filled group, scan next group from the beginningStefan Brüns2016-09-23-3/+5
| | | | | | | | | | | | | | | | | | | | The last free block of a block group may be in its middle. After it has been allocated, the next block group should be scanned from its beginning. The following command triggers the bad behaviour (on a blocksize 1024 fs): ./sandbox/u-boot -c 'i=0; host bind 0 ./disk.raw ; while test $i -lt 260 ; do echo $i; setexpr i $i + 1; ext4write host 0:2 0 /X${i} 0x1450; done ; ext4write host 0:2 0 /X240 0x2000 ; ' When 'X240' is extended from 5200 byte to 8192 byte, the new blocks should start from the first free block (8811), but it uses the blocks 8098-8103 and 16296-16297 -- 8103 + 1 + 8192 = 16296. This can be shown with debugfs, commands 'ffb' and 'stat X240'. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
* ext4: Do not clear zalloc'ed buffers a second timeStefan Brüns2016-09-23-3/+0
| | | | | | | | | zero_buffer is never written, thus clearing it is pointless. journal_buffer is completely initialized by ext4fs_devread (or in case of failure, not used). Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
* ext4: Only update number of of unused inodes if GDT_CSUM feature is setStefan Brüns2016-09-23-7/+7
| | | | | | | | | | e2fsck warns about "Group descriptor 0 marked uninitialized without feature set." The bg_itable_unused field is only defined if FEATURE_RO_COMPAT_GDT_CSUM is set, and should be set (kept) zero otherwise. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
* ext4: Scan all directory blocks when looking up an entryStefan Brüns2016-09-23-44/+40
| | | | | | | | | Scanning only the direct blocks of the directory file may falsely report an existing file as nonexisting, and worse can also lead to creation of a duplicate entry on file creation. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
* ext4: Scan all directory blocks for space when inserting a new entryStefan Brüns2016-09-23-44/+30
| | | | | | | | | | | Previously, only the last directory block was scanned for available space. Instead, scan all blocks back to front, and if no sufficient space is found, eventually append a new block. Blocks are only appended if the directory does not use extents or the new block would require insertion of indirect blocks, as the old code does. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
* ext4: Do not crash when trying to grow a directory using extentsStefan Brüns2016-09-23-1/+6
| | | | | | | | | | | | | The following command crashes u-boot: ./sandbox/u-boot -c 'i=0; host bind 0 ./sandbox/test/fs/3GB.ext4.img ; while test $i -lt 200 ; do echo $i; setexpr i $i + 1; ext4write host 0 0 /foobar${i} 0; done' Previously, the code updated the direct_block even for extents, and fortunately crashed before pushing garbage to the disk. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
* ext4: propagate error if creation of directory entry failsStefan Brüns2016-09-23-6/+6
| | | | | | | | In case the dir entry creation failed, ext4fs_write would later overwrite a random inode, as inodeno was never initialized. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
* ext4: fix possible crash on directory traversal, ignore deleted entriesStefan Brüns2016-09-23-37/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | The following command triggers a segfault in search_dir: ./sandbox/u-boot -c 'host bind 0 ./sandbox/test/fs/3GB.ext4.img ; ext4write host 0 0 /./foo 0x10' The following command triggers a segfault in check_filename: ./sandbox/u-boot -c 'host bind 0 ./sandbox/test/fs/3GB.ext4.img ; ext4write host 0 0 /. 0x10' "." is the first entry in the directory, thus previous_dir is NULL. The whole previous_dir block in search_dir seems to be a bad copy from check_filename(...). As the changed data is not written to disk, the statement is mostly harmless, save the possible NULL-ptr reference. Typically a file is unlinked by extending the direntlen of the previous entry. If the entry is the first entry in the directory block, it is invalidated by setting inode=0. The inode==0 case is hard to trigger without crafted filesystems. It only hits if the first entry in a directory block is deleted and later a lookup for the entry (by name) is done. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
* ext4: fix wrong usage of le32_to_cpu()Michael Walle2016-09-23-1/+1
| | | | | | | le32_to_cpu() must only convert the revision_level and not the boolean result. Signed-off-by: Michael Walle <michael@walle.cc>
* ext4: fix endianess problems in ext4 write supportMichael Walle2016-09-23-124/+158
| | | | | | | | 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>
* ext4: use kernel names for byte swapsMichael Walle2016-09-23-45/+45
| | | | | | Instead of __{be,le}{16,32}_to_cpu use {be,le}{16,32}_to_cpu. Signed-off-by: Michael Walle <michael@walle.cc>
* ext4: Refuse to mount filesystems with 64bit feature setTom Rini2016-08-05-0/+10
| | | | | | | | | | | | | | | | With e2fsprogs after 1.43 the 64bit and metadata_csum features are enabled by default. The metadata_csum feature changes how ext4_group_desc->bg_checksum is calculated, which would break write support. The 64bit feature however introduces changes such that it cannot be read by implementations that do not support it. Since we do not support this, we must not mount it. Cc: Stephen Warren <swarren@nvidia.com> Cc: Simon Glass <sjg@chromium.org> Cc: Lukasz Majewski <l.majewski@samsung.com> Cc: Stefan Roese <sr@denx.de> Reported-by: Andrew Bradford <andrew.bradford@kodakalaris.com> Signed-off-by: Tom Rini <trini@konsulko.com>
* fs: ext4: fix symlink read functionRonald Zachariah2016-05-02-1/+1
| | | | | | | | | | The function ext4fs_read_symlink was unable to handle a symlink which had target name of exactly 60 characters. Signed-off-by: Ronald Zachariah <rozachar@cisco.com> Signed-off-by: Stefan Roese <sr@denx.de> Reviewed-by: Stephen Warren <swarren@nvidia.com> Cc: Tom Rini <trini@konsulko.com>
* dm: block: Adjust device calls to go through helpers functionSimon Glass2016-03-14-18/+9
| | | | | | | | | | | | To ease conversion to driver model, add helper functions which deal with calling each block device method. With driver model we can reimplement these functions with the same arguments. Use inline functions to avoid increasing code size on some boards. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Stephen Warren <swarren@nvidia.com>
* ext4_common.c: Clean up failure cases in alloc_triple_indirect_blockTom Rini2016-01-13-5/+10
| | | | | | | | | | As noted by Coverity, when we have an error in alloc_triple_indirect_block we will leak ti_pbuff_start_addr as it's not being freed. Further inspection here shows that we could also leak ti_cbuff_start_addr in one corner case so free that as well. Reported-by: Coverity (CID 131205, 131206) Signed-off-by: Tom Rini <trini@konsulko.com>
* block: pass block dev not num to read/write/erase()Stephen Warren2016-01-13-5/+5
| | | | | | | | | | | This will allow the implementation to make use of data in the block_dev structure beyond the base device number. This will be useful so that eMMC block devices can encompass the HW partition ID rather than treating this out-of-band. Equally, the existence of the priv field is crying out for this patch to exist. Signed-off-by: Stephen Warren <swarren@nvidia.com> Reviewed-by: Tom Rini <trini@konsulko.com>
* fs: ext4: Prevent infinite loop in ext4fs_iterate_dirThomas Fitzsimmons2015-11-23-0/+5
| | | | | | | | | | | | | | | | | | | If the ext3 journal gets out of sync with what is written on disk, for example because of an unexpected power cut, ext4fs_read_file can return an all-zero directory entry. In that case, ext4fs_iterate_dir would infinite loop. This patch detects when a directory entry's direntlen member is 0 and returns a failure status, which breaks out of the infinite loop. As a result, U-Boot will not find files that may subsequently be recovered when the journal is replayed. This is better behaviour than hanging in an infinite loop, but as a further improvement maybe U-Boot could interpret the ext3 journal and actually find the unsynced entries. Signed-off-by: Thomas Fitzsimmons <fitzsim@cisco.com> Reviewed-by: Stefan Roese <sr@denx.de>
* fs: ext4: fix symlink read functionGary Bisson2015-09-11-1/+1
| | | | | | | Since last API changes for files >2GB, the read of symlink is broken as ext4fs_read_file now returns 0 instead of the length of the actual read. Signed-off-by: Gary Bisson <gary.bisson@boundarydevices.com>
* ext4: fix leak in check_filename()Stephen Warren2015-09-11-2/+3
| | | | | | | | | root_first_block_buffer should be free()d in all cases, not just when an error occurs. Fix the success exit path of the function to do this. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Lukasz Majewski <l.majewski@samsung.com> Tested-by: Lukasz Majewski <l.majewski@samsung.com>
* ext4: free allocations by parse_path()Stephen Warren2015-09-11-2/+6
| | | | | | | | | | | | | | parse_path() malloc()s the entries in the array it's passed. Those allocations must be free()d by the caller, ext4fs_get_parent_inode_num(). Add code to do this. For this to work, all the array entries must be dynamically allocated, rather than a mix of dynamic and static allocations. Fix parse_path() not to over-write arr[0] with a pointer to statically allocated data. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Lukasz Majewski <l.majewski@samsung.com> Tested-by: Lukasz Majewski <l.majewski@samsung.com>
* Move ALLOC_CACHE_ALIGN_BUFFER() to the new memalign.h headerSimon Glass2015-09-11-0/+1
| | | | | | | Now that we have a new header file for cache-aligned allocation, we should move the stack-based allocation macro there also. Signed-off-by: Simon Glass <sjg@chromium.org>
* ext4: Prepare API change for files greater than 2GBSuriyan Ramasami2014-11-23-11/+13
| | | | | | | | | Change the internal EXT4 functions to use loff_t for offsets. Signed-off-by: Suriyan Ramasami <suriyan.r@gmail.com> Acked-by: Simon Glass <sjg@chromium.org> [trini: Update common/spl/spl_ext.c] Signed-off-by: Tom Rini <trini@ti.com>
* ext4: Use inttypes for printf() stringSimon Glass2014-10-27-1/+2
| | | | | | | On 64-bit platforms (like sandbox) 64-bit integers may be 'long' rather than 'long long'. Use the inttypes header to avoid compiler warnings. Signed-off-by: Simon Glass <sjg@chromium.org>
* fs: ext4: fix writing zero-length filesStephen Warren2014-06-19-3/+1
| | | | | | | | | | | | | ext4fs_allocate_blocks() always allocates at least one block for a file. If the file size is zero, this causes total_remaining_blocks to underflow, which then causes an apparent hang while 2^32 blocks are allocated. To solve this, check that total_remaining_blocks is non-zero as part of the loop condition (i.e. before each loop) rather than at the end of the loop. Signed-off-by: Stephen Warren <swarren@nvidia.com>
* fs:ext4:write:fix: Reinitialize global variables after updating a fileŁukasz Majewski2014-05-12-9/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This bug shows up when file stored on the ext4 file system is updated. The ext4fs_delete_file() is responsible for deleting file's (e.g. uImage) data. However some global data (especially ext4fs_indir2_block), which is used during file deletion are left unchanged. The ext4fs_indir2_block pointer stores reference to old ext4 double indirect allocated blocks. When it is unchanged, after file deletion, ext4fs_write_file() uses the same pointer (since it is already initialized - i.e. not NULL) to return number of blocks to write. This trunks larger file when previous one was smaller. Lets consider following scenario: 1. Flash target with ext4 formatted boot.img (which has uImage [*] on itself) 2. Developer wants to upload their custom uImage [**] - When new uImage [**] is smaller than the [*] - everything works correctly - we are able to store the whole smaller file with corrupted ext4fs_indir2_block pointer - When new uImage [**] is larger than the [*] - theCRC is corrupted, since truncation on data stored at eMMC was done. 3. When uImage CRC error appears, then reboot and LTHOR/DFU reflashing causes proper setting of ext4fs_indir2_block() and after that uImage[**] is successfully stored (correct uImage [*] metadata is stored at an eMMC on the first flashing). Due to above the bug was very difficult to reproduce. This patch sets default values for all ext4fs_indir* pointers/variables. Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
* fs:ext4:cleanup: Remove superfluous codeŁukasz Majewski2014-05-12-4/+2
| | | | | | | | | Code responsible for handling situation when ext4 has block size of 1024B can be ordered to take less space. This patch does that for ext4 common and write files. Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
* ext4fs: fix "invalid extent block" errorIonut Nicu2014-01-20-1/+1
| | | | | | | | | | | | | | | | | | | | | | 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 <ioan.nicu.ext@nsn.com> Signed-off-by: Mathias Rulf <mathias.rulf@nsn.com>
* ext4fs: use EXT2_BLOCK_SIZE instead of fs->blkszIonut Nicu2014-01-20-2/+2
| | | | | | | | | | 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 <ioan.nicu.ext@nsn.com> Signed-off-by: Mathias Rulf <mathias.rulf@nsn.com>
* fs/ext4: fix calling put_ext4 with truncated offsetMa Haijun2014-01-20-17/+17
| | | | | | | | | | | | 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 <mahaijuns@gmail.com>
* Add GPL-2.0+ SPDX-License-Identifier to source filesWolfgang Denk2013-07-24-13/+1
| | | | | | Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
* ext4fs: le32_to_cpu() used on a 16-bit fieldRommel Custodio2013-07-22-6/+6
| | | | | | | | | | | | | | 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 <sessyargc+uboot@gmail.com> [sent via git-send-email; rework commit message] Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org> Tested-by: Lukasz Majewski <l.majewski@samsung.com>
* Fix ext2/ext4 filesystem accesses beyond 2TiBFrederic Leroy2013-07-15-21/+27
| | | | | | | | | | | | | | | | | 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>
* fs/ext4: Support device block sizes != 512 bytesEgbert Eich2013-05-10-19/+23
| | | | | | | | | 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>
* fs:ext4:fix: Code refactoring to suppress compiler warningsŁukasz Majewski2012-12-07-4/+10
| | | | | | | | Several fixes to suppress compiler's (eldk-5.[12].x gcc 4.6) warning [-Wunused-but-set-variable] Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
* fs: separate CONFIG_FS_{FAT, EXT4} from CONFIG_CMD_{FAT, EXT*}Stephen Warren2012-10-29-1/+1
| | | | | | | | | | | | | | | | | | 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>
* ext4: Rename block group descriptor table from gd to bgdSimon Glass2012-10-03-41/+44
| | | | | | | | | | | 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 <sjg@chromium.org>
* ext4: cache-align buffers so the invalidation worksStephen Warren2012-09-20-1/+1
| | | | | | | | | | | | | | | | | | | | | 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 Shankar2012-08-09-0/+1353
| | | | | | | 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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