The U-Boot ext4 support has some bugs which either cause U-Boot crashes or lead to filesystem corruption.

This series goes on top of the endian patch series by Michael Walle. It has been rebased against v4 of the series.

The first 13 patches have already been reviewed, last 3 patches are new. Revieved-by has been added as appropriate.

Stefan Brüns (16): ext4: fix possible crash on directory traversal, ignore deleted entries ext4: propagate error if creation of directory entry fails ext4: Do not crash when trying to grow a directory using extents ext4: Scan all directory blocks for space when inserting a new entry ext4: Avoid corruption of directories with hash tree indexes ext4: Scan all directory blocks when looking up an entry ext4: Only update number of of unused inodes if GDT_CSUM feature is set ext4: Do not clear zalloc'ed buffers a second time ext4: After completely filled group, scan next group from the beginning ext4: Avoid out-of-bounds access of block bitmap ext4: Fix memory leak in case of failure ext4: Use correct value for inode size even on revision 0 filesystems ext4: initialize full inode for inodes bigger than 128 bytes ext4: remove duplicated block release code for extents ext4: Correct block number handling, empty block vs. error code ext4: Fix memory leak of journal buffer if block is updated multiple times

fs/ext4/ext4_common.c | 288 +++++++++++++++++++++---------------------------- fs/ext4/ext4_common.h | 2 +- fs/ext4/ext4_journal.c | 6 +- fs/ext4/ext4_write.c | 147 ++++++++++--------------- include/ext4fs.h | 3 +- include/ext_common.h | 2 - 6 files changed, 190 insertions(+), 258 deletions(-)

v2: Updated: ext4: fix possible crash on directory traversal, ignore deleted entries - Fix bad filename compare on delete, used substring only

v3: Added: ext4: Scan all directory blocks for space when inserting a new entry ext4: Only update number of of unused inodes if GDT_CSUM feature is set ext4: Do not clear zalloc'ed buffers a second time ext4: After completely filled group, scan next group from the beginning ext4: Avoid out-of-bounds access of block bitmap ext4: Fix memory leak in case of failure ext4: Use correct value for inode size even on revision 0 filesystems ext4: initialize full inode for inodes bigger than 128 bytes ext4: remove duplicated block release code for extents

Updated: ext4: Scan all directory blocks when looking up an entry - use parent_inode instead of g_parent_inode when determining directory size

v4: Updated: ext4: Scan all directory blocks when looking up an entry - fix directory scan, direntname was advanced by offset instead of direntlen Problem reported by Thomas Schaefer Thomas.Schaefer@kontron.com

v5: Added: ext4: remove duplicated block release code for extents ext4: Correct block number handling, empty block vs. error code ext4: Fix memory leak of journal buffer if block is updated multiple times

Updated: ext4: initialize full inode for inodes bigger than 128 bytes - fix memory corruption if sizeof(struct ext2_inode) != fs->inodesz Problem reported by Thomas Schaefer Thomas.Schaefer@kontron.com