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| author | Bob Peterson <rpeterso@redhat.com> | 2021-05-18 16:12:10 +0300 |
|---|---|---|
| committer | Andreas Gruenbacher <agruenba@redhat.com> | 2021-05-20 14:31:37 +0300 |
| commit | 20265d9a67e40eafd39a8884658ca2e36f05985d (patch) | |
| tree | f944efab603c456faf64c95ae23c783ba011dd3e /scripts/gdb/linux/proc.py | |
| parent | 4194dec4b4169e5a9a5171db60c2ec00c4d8cf16 (diff) | |
| download | linux-20265d9a67e40eafd39a8884658ca2e36f05985d.tar.xz | |
gfs2: fix scheduling while atomic bug in glocks
Before this patch, in the unlikely event that gfs2_glock_dq encountered
a withdraw, it would do a wait_on_bit to wait for its journal to be
recovered, but it never released the glock's spin_lock, which caused a
scheduling-while-atomic error.
This patch unlocks the lockref spin_lock before waiting for recovery.
Fixes: 601ef0d52e96 ("gfs2: Force withdraw to replay journals and wait for it to finish")
Cc: stable@vger.kernel.org # v5.7+
Reported-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Diffstat (limited to 'scripts/gdb/linux/proc.py')
0 files changed, 0 insertions, 0 deletions