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由 Jeff Mahoney 提交于
Previous commits released the write lock across quota operations but missed several places. In particular, the free operations can also call into the file system code and take the write lock, causing deadlocks. This patch introduces some more helpers and uses them for quota call sites. Without this patch applied, reiserfs + quotas runs into deadlocks under anything more than trivial load. Signed-off-by: NJeff Mahoney <jeffm@suse.com>
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