Commit graph

23 commits

Author SHA1 Message Date
Wolfgang Denk
0cf207ec01 WS cleanup: remove SPACE(s) followed by TAB
Signed-off-by: Wolfgang Denk <wd@denx.de>
2021-09-30 09:08:16 -04:00
Marek Behún
c65365d7ad fs: btrfs: change directory list output to be aligned as before
Since commit 325dd1f642 ("fs: btrfs: Use btrfs_iter_dir() to ...")
when btrfs is listing a directory, the output is not aligned:

  <SYMLINK>         15  Wed Sep 09 13:20:03 2020  boot.scr -> @/boot/boot.scr
  <DIR>          0  Tue Feb 02 12:42:09 2021  @
  <FILE>        108  Tue Feb 02 12:54:04 2021  1.info

Return back to how it was displayed previously, i.e.:

  <SYM>         15  Wed Sep 09 13:20:03 2020  boot.scr -> @/boot/boot.scr
  <DIR>          0  Tue Feb 02 12:42:09 2021  @
  <   >        108  Tue Feb 02 12:54:04 2021  1.info

Instead of '<FILE>', print '<   >', as ext4 driver.

If an unknown directory item type is encountered, we will print the type
number left padded with spaces, enclosed by '?', instead of '<' and '>',
i.e.:

  ? 30?        .............................  name

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Fixes: 325dd1f642 ("fs: btrfs: Use btrfs_iter_dir() to replace ...")
Cc: David Sterba <dsterba@suse.com>
Cc: Qu Wenruo <wqu@suse.com>
Cc: Tom Rini <trini@konsulko.com>
Reviewed-by: Qu Wenruo <wqu@suse.com>
2021-02-24 16:51:48 -05:00
Marek Behún
e4cecb5667 fs: btrfs: skip xattrs in directory listing
Skip xattrs in directory listing. U-Boot filesystem drivers do not list
xattrs.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Cc: David Sterba <dsterba@suse.com>
Cc: Qu Wenruo <wqu@suse.com>
Cc: Tom Rini <trini@konsulko.com>
Reviewed-by: Qu Wenruo <wqu@suse.com>
2021-02-24 16:51:48 -05:00
Qu Wenruo
4891c4e595 fs: btrfs: initialize @ret to 0 to prevent uninitialized return value
In show_dir() if we hit a ROOT_ITEM, we can exit with uninitialized
@ret.

Fix it by initializing it to 0.

Reported-by: Coverity CID 312955
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
2020-11-19 09:45:49 -05:00
Naoki Hayama
09f2107a5f fs: btrfs: Fix typo in error message
%s/occured/occurred/

Signed-off-by: Naoki Hayama <naoki.hayama@lineo.co.jp>
Reviewed-by: Marek Behún <kabel@kernel.org>
Reviewed-by: Qu Wenruo <wqu@suse.com>
2020-10-22 11:26:14 -04:00
Qu Wenruo
5573c20fad fs: btrfs: Cleanup the old implementation
This cleans up the now unneeded code from the old btrfs implementation.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
2020-09-07 21:00:36 -04:00
Qu Wenruo
e3427184f3 fs: btrfs: Implement btrfs_file_read()
This version of btrfs_file_read() has the following new features:
- Tries all mirrors
- More handling on unaligned size
- Better compressed extent handling
  The old implementation doesn't handle compressed extent with offset
  properly: we need to read out the whole compressed extent, then
  decompress the whole extent, and only then copy the requested part.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
2020-09-07 21:00:36 -04:00
Qu Wenruo
0cc8fc65c1 fs: btrfs: Rename btrfs_file_read() and its callees to avoid name conflicts
Rename btrfs_file_read() and its callees to avoid name conflicts with
the incoming new code.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
2020-09-07 20:57:27 -04:00
Qu Wenruo
5bbb68d5f0 fs: btrfs: Use btrfs_lookup_path() to implement btrfs_exists() and btrfs_size()
After this the only remaining function that still utilizes
__btrfs_lookup_path() is btrfs_read().

Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
2020-09-07 20:57:27 -04:00
Qu Wenruo
325dd1f642 fs: btrfs: Use btrfs_iter_dir() to replace btrfs_readdir()
Use extent buffer based infrastructure to re-implement btrfs_readdir().

Along this rework, some small corner cases fixed:
- Subvolume tree mtime
  Mtime of a subvolume tree is recorded in its root item, since there is
  no INODE_ITEM for it.
  This needs extra search from tree root.

- Output the unknown type
  If the DIR_ITEM is corrupted, at least don't try to access the memory
  out of boundary.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
2020-09-07 20:57:27 -04:00
Qu Wenruo
cafffc50ad fs: btrfs: Rename path resolve related functions to avoid name conflicts
Since the old code is using __btrfs_path/__btrfs_root which is different
from the regular extent buffer based one, we add "__" prefix for the old
implementation to avoid name conflicts for the incoming crossport.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
2020-09-07 20:57:27 -04:00
Qu Wenruo
f06bfcf54d fs: btrfs: Crossport open_ctree_fs_info() from btrfs-progs
open_ctree_fs_info() is the main entry point to open btrfs.

This version is a simplfied version of __open_ctree_fd() of btrfs-progs,
the main differences are:
- Parameters on how to specify a block device
  Instead of @fd and @path, U-Boot uses blk_desc and disk_partition_t.

- Remove open_ctree flags
  There won't be multiple open ctree modes in U-Boot.

Otherwise functions structures are all kept the same.

With open_ctree_fs_info() implemented, also introduce the global
current_fs_info pointer to show the current opened btrfs.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
2020-09-07 20:57:27 -04:00
Qu Wenruo
57f24f1073 fs: btrfs: Crossport btrfs_read_sys_array() and btrfs_read_chunk_tree()
These two functions play a big role in btrfs bootstrap.

The following function is removed:
- Seed device support

Although in theory we can still support multiple devices, we don't have
a facility in U-Boot to do device scan without opening them.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
2020-09-07 20:57:27 -04:00
Qu Wenruo
207011b81e fs: btrfs: Rename btrfs_root to __btrfs_root
This is to avoid naming conflicts between extent buffer based
btrfs_root.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
2020-09-07 20:57:27 -04:00
Qu Wenruo
4aebb99486 fs: btrfs: Crossport btrfs_read_dev_super() from btrfs-progs
This patch uses generic code from btrfs-progs to read one super block
from block device.

To support the btrfs-progs coding style, the following is also
crossported:
- BTRFS_SETGET_FUNC for btrfs_super_block
- btrfs_check_super() function
- Move btrfs_read_superblock() to disk-io.[ch]
  Since super.c only contains pretty small amount of code, and
  the extra check will be covered in later root read patches.

Differences between this implementation and btrfs-progs:
- No sbflags/sb_bytenr support
  Since we only need to read the primary super block (like kernel),
  sbflags/sb_bytenr used by super block recovery is not needed.

This also changes the following behavior of U-Boot btrfs:
- Only reads the primary super block
  The old implementation reads all 3 super blocks, and also one
  non-existing backup.
  This is not correct, especially if there is another filesystem created
  on the device but old superblocks are not rewritten.

  Just like kernel, we only check the primary super block.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
[trini: Change error to be a define in compat.h]
Signed-off-by: Tom Rini <trini@konsulko.com>
2020-09-07 20:57:27 -04:00
Qu Wenruo
565a4147d1 fs: btrfs: Add more checksum algorithms
This mostly crossports crypto/hash.[ch] from btrfs-progs.

The differences are:
- No blake2 support
  No blake2 related library in U-Boot yet.

- Use uboot xxhash/sha256 directly
  No need to implement the code as U-Boot has already provided the
  interface.

This adds the support for the following csums:
- SHA256
- XXHASH

Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
2020-09-07 20:57:27 -04:00
Qu Wenruo
3b4b40c0d6 fs: btrfs: Sync btrfs_btree.h from kernel
This version includes all needed on-disk format from kernel.

Only need to modify the include headers for U-Boot, everything else is
untouched.

Also, since U-Boot btrfs is using a different endian convert timing (at
tree block read time), it needs some forced type conversion before
proper crossport.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
2020-09-07 20:57:27 -04:00
Simon Glass
0528979fa7 part: Drop disk_partition_t typedef
We should not be using typedefs and these make it harder to use
forward declarations (to reduce header file inclusions). Drop the typedef.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-18 17:33:33 -04:00
Simon Glass
ba06b3c50b common: Drop uuid.h from common header
Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-18 14:53:28 -04:00
Marek Behún
cd22e34c11 fs: btrfs: fix btrfs methods return values on failure
The btrfs implementation methods .ls(), .size() and .read() returns 1 on
failure, but the command handlers expect values <0 on failure.

For example if given a nonexistent path, the load command currently
returns success, and hush scripting does not work.

Fix this by setting return values of these methods to -1 instead of 1 on
failure.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
2019-05-03 07:30:31 -04:00
Tom Rini
83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00
Marek Behún
22fc7b6cd6 fs: btrfs: Remove unused debug code left from development
Signed-off-by: Marek Behun <marek.behun@nic.cz>
2018-04-06 17:04:33 -04:00
Marek Behún
0c936ee319 fs: btrfs: Add U-Boot fs handlers.
Signed-off-by: Marek Behun <marek.behun@nic.cz>

 create mode 100644 fs/btrfs/Kconfig
 create mode 100644 fs/btrfs/Makefile
 create mode 100644 fs/btrfs/btrfs.c
 create mode 100644 include/btrfs.h
2017-10-02 21:52:18 -04:00