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| author | Chris Mason <chris.mason@oracle.com> | 2009-09-16 02:02:33 +0200 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2009-09-16 02:20:17 +0200 |
| commit | 6e74057c4686dc12ea767b4bdc50a63876056e1c (patch) | |
| tree | e7c70b8e08ab9e5363be28bcbcc72348122ae6e4 /fs/btrfs/tree-defrag.c | |
| parent | Btrfs: fix worker thread double spin_lock_irq (diff) | |
| download | linux-6e74057c4686dc12ea767b4bdc50a63876056e1c.tar.xz linux-6e74057c4686dc12ea767b4bdc50a63876056e1c.zip | |
Btrfs: Fix async thread shutdown race
It was possible for an async worker thread to be selected to
receive a new work item, but exit before the work item was
actually placed into that thread's work list.
This commit fixes the race by incrementing the num_pending
counter earlier, and making sure to check the number of pending
work items before a thread exits.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/tree-defrag.c')
0 files changed, 0 insertions, 0 deletions