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| author | David Sterba <dsterba@suse.com> | 2015-10-12 16:55:54 +0200 |
|---|---|---|
| committer | Chris Mason <clm@fb.com> | 2015-10-26 19:38:26 -0700 |
| commit | 849ef9286f30c88113906dc35f44a499c0cb385d (patch) | |
| tree | 583d82b294a3825459c960a0315186ec5cd703b5 /fs/btrfs/volumes.h | |
| parent | b06c4bf5c874a57254b197f53ddf588e7a24a2bf (diff) | |
| download | linux-849ef9286f30c88113906dc35f44a499c0cb385d.tar.bz2 | |
btrfs: check unsupported filters in balance arguments
We don't verify that all the balance filter arguments supplemented by
the flags are actually known to the kernel. Thus we let it silently pass
and do nothing.
At the moment this means only the 'limit' filter, but we're going to add
a few more soon so it's better to have that fixed. Also in older stable
kernels so that it works with newer userspace tools.
Cc: stable@vger.kernel.org # 3.16+
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Chris Mason <clm@fb.com>
Diffstat (limited to 'fs/btrfs/volumes.h')
| -rw-r--r-- | fs/btrfs/volumes.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h index 99c208f6718d..b8e64ea984f1 100644 --- a/fs/btrfs/volumes.h +++ b/fs/btrfs/volumes.h @@ -381,6 +381,14 @@ struct map_lookup { #define BTRFS_BALANCE_ARGS_VRANGE (1ULL << 4) #define BTRFS_BALANCE_ARGS_LIMIT (1ULL << 5) +#define BTRFS_BALANCE_ARGS_MASK \ + (BTRFS_BALANCE_ARGS_PROFILES | \ + BTRFS_BALANCE_ARGS_USAGE | \ + BTRFS_BALANCE_ARGS_DEVID | \ + BTRFS_BALANCE_ARGS_DRANGE | \ + BTRFS_BALANCE_ARGS_VRANGE | \ + BTRFS_BALANCE_ARGS_LIMIT) + /* * Profile changing flags. When SOFT is set we won't relocate chunk if * it already has the target profile (even though it may be |