u-boot.git/fs/ext4, branch v2017.05

ext4: Fix comparision of unsigned expression with < 0

2017-04-27T20:49:09+00:00

In file ext4fs.c funtion ext4fs_read_file() compares an
unsigned expression with < 0 like below

	lbaint_t blknr;
	blknr = read_allocated_block(&(node->inode), i);
	if (blknr < 0)
		return -1;

blknr is of type ulong/uint64_t. read_allocated_block() returns
long int. So comparing blknr with < 0 will always be false. Instead
declare blknr as long int.

Similarly ext4/dev.c does a similar comparison. Drop the redundant
comparison.

Signed-off-by: Lokesh Vutla 
Reviewed-by: Tom Rini

fs/ext4: Initialize group descriptor size for revision level 0 filesystems

2016-12-27T16:24:18+00:00

genext2fs creates revision level 0 filesystems, which are not readable
by u-boot due to the initialized group descriptor size field.
f798b1dda1c5de818b806189e523d1b75db7e72d

Reported-by: Kever Yang 
Reported-by: FrostyBytes@protonmail.com
Signed-off-by: Stefan Brüns 
Tested-by: Kever Yang

ext4: Allow reading files with non-zero offset, clamp read len

2016-11-21T19:07:27+00:00

Support was already implemented, but not hooked up. This fixes several
fails in the test cases.

Signed-off-by: Stefan Brüns 
Acked-by: Stephen Warren

ext4: Fix handling of sparse files

2016-11-21T19:07:27+00:00

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

ext4: Only write journal entries for modified blocks in unlink_filename

2016-10-24T12:04:37+00:00

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 
Reviewed-by: Tom Rini 
Reviewed-by: Lukasz Majewski

ext4: Fix handling of direntlen in unlink_filename

2016-10-24T12:04:36+00:00

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 
Reported-by: Coverity (CID: 153383, 153384)
Reviewed-by: Tom Rini 
Reviewed-by: Lukasz Majewski

ext4: cleanup unlink_filename function

2016-10-24T12:04:36+00:00

Use the same variable names as in search_dir, to make purpose of variables
more obvious.

Signed-off-by: Stefan Brüns 
Reviewed-by: Tom Rini

treewide: replace #include with

2016-09-23T21:55:42+00:00

Now, arch/${ARCH}/include/asm/errno.h and include/linux/errno.h have
the same content.  (both just wrap )

Replace all include directives for  with .

Signed-off-by: Masahiro Yamada 
[trini: Fixup include/clk.]
Signed-off-by: Tom Rini

ext4: Revert rejection of 64bit enabled ext4 fs

2016-09-23T13:20:16+00:00

Enable mounting of ext4 fs with 64bit feature, as it is supported now.
These had been disabled in 6f94ab6656ceffb3f2a972c8de4c554502b6f2b7.

Signed-off-by: Stefan Brüns

ext4: Respect group descriptor size when adjusting free counts

2016-09-23T13:20:16+00:00

Also adjust high 16/32 bits when free inode/block counts are modified.

Signed-off-by: Stefan Brüns