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由 Nikolay Borisov 提交于
lock_delalloc_pages should only return 2 values - 0 in case of success and -EAGAIN if the range of pages to be locked should be shrunk due to some of gone. Manual inspections confirms that this is indeed the case since __process_pages_contig is where lock_delalloc_pages gets its return value. The latter always returns 0 or -EAGAIN so the invariant holds. No functional changes. Reviewed-by: NQu Wenruo <wqu@suse.com> Reviewed-by: NAnand Jain <anand.jain@oracle.com> Signed-off-by: NNikolay Borisov <nborisov@suse.com> Reviewed-by: NDavid Sterba <dsterba@suse.com> Signed-off-by: NDavid Sterba <dsterba@suse.com>
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