jffs2: use mutex_is_locked() in __jffs2_flush_wbuf()
Use a helper to test if a mutex is held instead of a hack with mutex_trylock(). Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru> Signed-off-by: Artem Bityutskiy <dedekind1@gmail.com>
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@ -578,8 +578,7 @@ static int __jffs2_flush_wbuf(struct jffs2_sb_info *c, int pad)
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if (!jffs2_is_writebuffered(c))
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if (!jffs2_is_writebuffered(c))
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return 0;
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return 0;
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if (mutex_trylock(&c->alloc_sem)) {
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if (!mutex_is_locked(&c->alloc_sem)) {
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mutex_unlock(&c->alloc_sem);
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printk(KERN_CRIT "jffs2_flush_wbuf() called with alloc_sem not locked!\n");
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printk(KERN_CRIT "jffs2_flush_wbuf() called with alloc_sem not locked!\n");
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BUG();
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BUG();
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}
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}
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