summaryrefslogtreecommitdiff
path: root/fs/btrfs/ctree.c
AgeCommit message (Collapse)Author
2020-05-18common: Drop log.h from common headerSimon Glass
Move this header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org>
2019-04-26fs: btrfs: fix btrfs_search_tree invalid resultsPierre Bourdon
btrfs_search_tree should return the first item in the tree that is greater or equal to the searched item. The search algorithm did not properly handle the edge case where the searched item is higher than the last item of the node but lower than the first item of the next node. Instead of properly returning the first item of the next node, it was returning an invalid path pointer (pointing to a non-existent item after the last item of the node + 1). This fixes two issues in the btrfs driver: - Looking for a ROOT_ITEM could fail if it was the first item of its leaf node. - Iterating through DIR_INDEX entries (for readdir) could fail if the first DIR_INDEX entry was the first item of a leaf node. Signed-off-by: Pierre Bourdon <delroth@gmail.com> Cc: Marek Behun <marek.behun@nic.cz>
2018-10-08fs: btrfs: Fix tree traversal with btrfs_next_slot()Yevgeny Popovych
When traversing slots in a btree (via btrfs_path) with btrfs_next_slot(), we didn't correctly identify that the last slot in the leaf was reached and we should jump to the next leaf. This could lead to any kind of runtime errors or corruptions, like: * file data not being read at all, or is read partially * file is read but is corrupted * (any) metadata being corrupted or not read at all, etc The easiest way to reproduce this is to read a large enough file that its EXTENT_DATA items don't fit into a single leaf. Signed-off-by: Yevgeny Popovych <yevgenyp@pointgrab.com> Cc: Marek Behun <marek.behun@nic.cz> Tested-by: Marek Behún <marek.behun@nic.cz>
2018-09-30fs: btrfs: Fix cache alignment bugsMarek Vasut
The btrfs implementation passes cache-unaligned buffers into the block layer, which triggers cache alignment problems down in the block device drivers. Align the buffers to prevent this. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Marek Behun <marek.behun@nic.cz>
2018-05-07SPDX: Convert all of our single license tags to Linux Kernel styleTom Rini
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>
2018-04-06fs: btrfs: Remove unused debug code left from developmentMarek Behún
Signed-off-by: Marek Behun <marek.behun@nic.cz>
2017-10-02fs: btrfs: Add single-device read-only BTRFS implementationMarek Behún
This adds the proper implementation for the BTRFS filesystem. The implementation currently supports only read-only mode and the filesystem can be only on a single device. Checksums of data chunks is unimplemented. Compression is implemented (ZLIB + LZO). Signed-off-by: Marek Behun <marek.behun@nic.cz> create mode 100644 fs/btrfs/btrfs.h create mode 100644 fs/btrfs/chunk-map.c create mode 100644 fs/btrfs/compression.c create mode 100644 fs/btrfs/ctree.c create mode 100644 fs/btrfs/dev.c create mode 100644 fs/btrfs/dir-item.c create mode 100644 fs/btrfs/extent-io.c create mode 100644 fs/btrfs/hash.c create mode 100644 fs/btrfs/inode.c create mode 100644 fs/btrfs/root.c create mode 100644 fs/btrfs/subvolume.c create mode 100644 fs/btrfs/super.c