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author | Stefan Behrens <sbehrens@giantdisaster.de> | 2012-04-27 18:41:46 +0200 |
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committer | Chris Mason <chris.mason@oracle.com> | 2012-04-27 19:55:14 +0200 |
commit | 1f699d38b6556c393ac80f1c23c2053502a51631 (patch) | |
tree | 9ba8e3c95cc044461eab17dfba50515535ca2a25 /Documentation/sysrq.txt | |
parent | Btrfs: Prevent root_list corruption (diff) | |
download | linux-1f699d38b6556c393ac80f1c23c2053502a51631.tar.xz linux-1f699d38b6556c393ac80f1c23c2053502a51631.zip |
Btrfs: fix block_rsv and space_info lock ordering
may_commit_transaction() calls
spin_lock(&space_info->lock);
spin_lock(&delayed_rsv->lock);
and update_global_block_rsv() calls
spin_lock(&block_rsv->lock);
spin_lock(&sinfo->lock);
Lockdep complains about this at run time.
Everywhere except in update_global_block_rsv(), the space_info lock is
the outer lock, therefore the locking order in update_global_block_rsv()
is changed.
Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'Documentation/sysrq.txt')
0 files changed, 0 insertions, 0 deletions