diff options
Diffstat (limited to 'dev-python/btrfs/files/13-002-show_file_csum-fix-vaddr-computation.patch')
| -rw-r--r-- | dev-python/btrfs/files/13-002-show_file_csum-fix-vaddr-computation.patch | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/dev-python/btrfs/files/13-002-show_file_csum-fix-vaddr-computation.patch b/dev-python/btrfs/files/13-002-show_file_csum-fix-vaddr-computation.patch new file mode 100644 index 000000000000..dcf81c7566de --- /dev/null +++ b/dev-python/btrfs/files/13-002-show_file_csum-fix-vaddr-computation.patch @@ -0,0 +1,27 @@ + +Patch from: +https://github.com/knorrie/python-btrfs/commit/8ebe99f77b5e4da38d8e9322bb5a7c4688c98b4a + +From 8ebe99f77b5e4da38d8e9322bb5a7c4688c98b4a Mon Sep 17 00:00:00 2001 +From: Cebtenzzre <cebtenzzre@gmail.com> +Date: Sun, 28 Nov 2021 14:46:39 -0500 +Subject: [PATCH] examples/show_file_csum: Fix vaddr computation + +extent.logical_offset is relative to the start of the file, whereas +extent.offset is relative to the start of the extent data on disk. +--- a/examples/show_file_csum.py ++++ b/examples/show_file_csum.py +@@ -90,11 +90,11 @@ def first_regular_file_extent(inum, tree): + "inside a data extent at vaddr {}.".format( + extent.logical_offset, extent.num_bytes, extent.offset, extent.disk_bytenr)) + +-vaddr = extent.disk_bytenr + extent.logical_offset ++vaddr = extent.disk_bytenr + extent.offset + + wraprint("Now, we first look up the checksum value for one block ({} bytes) " + "of data at vaddr {} ({} + {}).".format( +- fs.sectorsize, vaddr, extent.disk_bytenr, extent.logical_offset)) ++ fs.sectorsize, vaddr, extent.disk_bytenr, extent.offset)) + wraprint("If we're lucky, the checksum tree has a key at {}. " + "If not, we have to try searching back a bit to find the csum object that " + "holds information about our data block. Searching back is done in a very clumsy " |