Hi all,
We have came to consensus about using discard in e2fsprogs tools. These
patches generalize use of discard in e2fsprogs tools introduce changes
in mke2fs and e2fsck.
Short summary
-------------
[PATCH 1/7] e2fsprogs: Add discard function into struct_io_manager
* generalize use of discard in e2fsprogs and let any tool in e2fsprogs
take advantage of it withou need to write its own BLKDISCARD wrappers.
[PATCH 2/7] e2fsprogs: Add discard_zeroes_data into struct_io_manager
* Give the opportunity for any io_manager to check if device discard
support zeroes data and save the results into io_manager itself for
use in any e2fsprofs tool.
[PATCH 3/7] e2fsck: Keep track of problems during the check
[PATCH 4/7] e2fsck: Discard free data and inode blocks.
* In pass 5 after the group descriptors has been changed discard free
data and inode blocks. The consensus was that it should be OFF by
default, so it is.
* Introduce new paid of extended options discard/nodiscard.
[PATCH 5/7] mke2fs: Change -K option to discard/nodiscard
* To the same of consistency and to gain ability to easily default it
the new pair of extended options has been added.
* The consensus was that it should stay ON by default, so it is.
[PATCH 6/7] mke2fs: Use unix_discard() for discards
[PATCH 7/7] mke2fs: Use io_manager discard_zeroes_data property
Any comments appreciated!
Thanks!
-Lukas
---
[PATCH 1/7] e2fsprogs: Add discard function into struct_io_manager
[PATCH 2/7] e2fsprogs: Add discard_zeroes_data into struct_io_manager
[PATCH 3/7] e2fsck: Keep track of problems during the check
[PATCH 4/7] e2fsck: Discard free data and inode blocks.
[PATCH 5/7] mke2fs: Change -K option to discard/nodiscard
[PATCH 6/7] mke2fs: Use unix_discard() for discards
[PATCH 7/7] mke2fs: Use io_manager discard_zeroes_data property
e2fsck/e2fsck.8.in | 14 ++++++++
e2fsck/e2fsck.h | 2 +
e2fsck/pass5.c | 81 +++++++++++++++++++++++++++++++++++++++++++++
e2fsck/problem.c | 31 ++++++++++++-----
e2fsck/problem.h | 3 ++
e2fsck/problemP.h | 1 +
e2fsck/unix.c | 10 +++++-
lib/ext2fs/ext2_io.h | 3 ++
lib/ext2fs/test_io.c | 1 +
lib/ext2fs/unix_io.c | 53 +++++++++++++++++++++++++++++
misc/mke2fs.8.in | 18 ++++++----
misc/mke2fs.c | 90 +++++++++++--------------------------------------
12 files changed, 219 insertions(+), 88 deletions(-)
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