kill-the-BKL/reiserfs: release the write lock on flush_commit_list()
flush_commit_list() uses ll_rw_block() to commit the pending log blocks. ll_rw_block() might sleep, and the bkl was released at this point. Then we can also relax the write lock at this point. [ Impact: release the reiserfs write lock when it is not needed ] Cc: Jeff Mahoney <jeffm@suse.com> Cc: Chris Mason <chris.mason@oracle.com> Cc: Alexander Beregalov <a.beregalov@gmail.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
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@ -1120,8 +1120,11 @@ static int flush_commit_list(struct super_block *s,
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SB_ONDISK_JOURNAL_SIZE(s);
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tbh = journal_find_get_block(s, bn);
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if (tbh) {
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if (buffer_dirty(tbh))
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if (buffer_dirty(tbh)) {
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reiserfs_write_unlock(s);
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ll_rw_block(WRITE, 1, &tbh);
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reiserfs_write_lock(s);
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}
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put_bh(tbh) ;
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}
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}
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