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| author |   Dave Chinner <dchinner@redhat.com> | 2016-02-08 10:46:51 +1100 |
|---|---|---|
| committer |   Dave Chinner <david@fromorbit.com> | 2016-02-08 10:46:51 +1100 |
| commit | 4b680afb42b9e1b504444583098401a00e63ed3c (patch) | |
| tree | 6170a1d972054795a8a38afa7404dacb1230eaef /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | Linux 4.5-rc2 (diff) | |
| download | linux-dev-4b680afb42b9e1b504444583098401a00e63ed3c.tar.xz linux-dev-4b680afb42b9e1b504444583098401a00e63ed3c.zip | |
xfs: lock rt summary inode on allocation
RT allocation can fail on a debug kernel with:
XFS: Assertion failed: xfs_isilocked(ip, XFS_ILOCK_SHARED|XFS_ILOCK_EXCL), file: fs/xfs/libxfs/xfs_bmap.c, line: 4039
When modifying the summary inode during allocation. This occurs
because the summary inode is never locked, and xfs_bmapi_*
operations expect it to be locked. The summary inode is effectively
protected byt he lock on the bitmap inode, so this really is only a
debug kernel issue.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Tested-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Reviewed-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
0 files changed, 0 insertions, 0 deletions