This is the 4.9.153 stable release
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This commit is contained in:
commit
fe0eb27ac6
45 changed files with 255 additions and 70 deletions
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@ -226,6 +226,14 @@ static inline void wb_get(struct bdi_writeback *wb)
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*/
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static inline void wb_put(struct bdi_writeback *wb)
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{
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if (WARN_ON_ONCE(!wb->bdi)) {
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/*
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* A driver bug might cause a file to be removed before bdi was
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* initialized.
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*/
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return;
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}
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if (wb != &wb->bdi->wb)
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percpu_ref_put(&wb->refcnt);
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}
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