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| author | Liu Bo <bo.li.liu@oracle.com> | 2016-08-25 18:08:27 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-01-06 11:16:10 +0100 |
| commit | 78a587c608f9ef0b0f7bd0bb5f4165a61a782862 (patch) | |
| tree | 1794c2c252418e30e25d3c8ef79c05396f92f81a /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | 25ee81e5462015d2ba3792d2ae0ea902a98ae8a4 (diff) | |
Btrfs: bail out if block group has different mixed flag
commit 49303381f19ab16a371a061b67e783d3f570d56e upstream.
Currently we allow inconsistence about mixed flag
(BTRFS_BLOCK_GROUP_METADATA | BTRFS_BLOCK_GROUP_DATA).
We'd get ENOSPC if block group has mixed flag and btrfs doesn't.
If that happens, we have one space_info with mixed flag and another
space_info only with BTRFS_BLOCK_GROUP_METADATA, and
global_block_rsv.space_info points to the latter one, but all bytes
from block_group contributes to the mixed space_info, thus all the
allocation will fail with ENOSPC.
This adds a check for the above case.
Reported-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
[ updated message ]
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
0 files changed, 0 insertions, 0 deletions