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crosvm/ext2
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Keiichi Watanabe 0d2ad4007e ext2: Use memory offset instead of block id for mmaping info 
ext2's mmaping information is used to perform mmap() in crosvm's main
process. Previously, the struct has a block id field so we needed to
calculate the offset by multiplying block size.
Instead, the struct now contains memory offset for convenience.

BUG=b:329359333
TEST=run VM on workstation with pmem-ext2

Change-Id: I845fc021c715a4b490e80142823855832fe3bc41
Reviewed-on: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/5771636
Commit-Queue: Keiichi Watanabe <keiichiw@chromium.org>
Reviewed-by: Takaya Saeki <takayas@chromium.org>
2024-08-09 06:02:11 +00:00
..
examples ext2: Support multiple block groups 2024-07-03 02:02:26 +00:00
src ext2: Use memory offset instead of block id for mmaping info 2024-08-09 06:02:11 +00:00
tests ext2: Fix permission of the root directory 2024-07-10 13:46:48 +00:00
Cargo.toml ext2: Allow constructing a file system from a directory 2024-06-17 11:57:48 +00:00
README.md ext2: Add example mkfs program 2024-04-17 06:16:54 +00:00

README.md

ext2

This crate provides utilities to create ext2 file system on memory or a file.

examples/mkfs.rs shows how to use this library. This program is our alternative to mkfs.ext2 that create an ext2 file system on a file and useful for debugging this ext2 itself with existing utilities in e2fsprogs such as fsck and dumpe2fs.

$ cargo run --release --example mkfs -- --path disk.img
Create disk.img
$ dumpe2fs disk.img
dumpe2fs 1.47.0 (5-Feb-2023)
Filesystem volume name:   <none>
Last mounted on:          <not available>
Filesystem UUID:          c6e49d8f-106f-4472-b0e8-6babcc3fa496
Filesystem magic number:  0xEF53
...