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authorPeng Tao2014-11-10 01:35:35 +0100
committerTom Haynes2015-02-03 20:06:48 +0100
commit48d635f14a544c2b3ca870d2c7349b41160496d2 (patch)
tree3482ecc1445a13fb60941213930078da302869ff /fs/nfs/pnfs.h
parentnfs: only reset desc->pg_mirror_idx when mirroring is supported (diff)
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nfs: add nfs_pgio_current_mirror helper
Let it return current nfs_pgio_mirror in use depending on pg_mirror_count. For read, we always use pg_mirrors[0], so this effectively gives us freedom to use pg_mirror_idx to track the actual mirror to read from through out the IO stack. Signed-off-by: Peng Tao <tao.peng@primarydata.com> Signed-off-by: Tom Haynes <loghyr@primarydata.com>
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