tmp branch recently got very nice feature: 'mkfs.btrfs -r /some/directory'.
It's very useful, when you need to creare minimal root: /bin/sh and fs_mark.
But there is another hidden feature! As '-r' can create whole filesystem
we can effectively valgrind a lot of code paths in btrfs and pick bugs.
This patch series is mostly (with one exception) dumb obvous holes plugs
(sometimes they are backports from kernel).
Patchset based on
git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-progs-unstable.git#tmp
commit e6bd18d8938986c997c45f0ea95b221d4edec095
Author: Christoph Hellwig <hch@xxxxxx>
Date: Thu Apr 21 16:24:07 2011 -0400
First off the exception:
In order to make --mixed produce proper filesystems with meta+data only
blocks (and not meta+data/data ones, which confused space_cache and led
to an oops for me) I ask to consider for pulling Arne's patch:
> Subject: [PATCH v2 1/9] btrfs progs: fix extra metadata chunk allocation in --mixed case
The rest of patches should be obvoius. They don't fix all the fair valgrind
compaints, but reduce them severely.
Changes since v1:
- "[PATCH 8/9] mkfs.btrfs: fix memory leak caused by 'scandir()' calls":
'free_namelist()' now works correctly if 'count == -1'. It happens
when 'free_namelist()' is called right after 'scandir()' returning
an error.
Some stats:
convert.c | 2 +-
extent-tree.c | 7 ++++---
extent_io.c | 1 +
file-item.c | 1 +
mkfs.c | 39 ++++++++++++++++++++++++++++++++++++---
5 files changed, 43 insertions(+), 7 deletions(-)
Arne Jansen (1):
btrfs progs: fix extra metadata chunk allocation in --mixed case
Sergei Trofimovich (8):
btrfs-convert: fix typo: 'all inode' -> 'all inodes'
mkfs.btrfs: fail on scandir error (-r mode)
mkfs.btrfs: return some defined value instead of garbage when lookup checksum
mkfs.btrfs: fix symlink names writing
mkfs.btrfs: write zeroes instead on uninitialized data.
mkfs.btrfs: free buffers allocated by pretty_sizes
mkfs.btrfs: fix memory leak caused by 'scandir()' calls
mkfs.btrfs: fix error text in '-r' mode
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