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sparc64: DAX request for non 4MB memory should return with unique errno
authorSanath Kumar <sanath.s.kumar@oracle.com>
Mon, 10 Apr 2017 21:52:32 +0000 (16:52 -0500)
committerChuck Anderson <chuck.anderson@oracle.com>
Mon, 24 Apr 2017 04:43:28 +0000 (21:43 -0700)
commit2929ad0e0c4b6383ee497f585a588a58333c81c6
tree799279be1e6193068d1ce2cc7515a592ceb33fc9tree
parent984f4e9f2c4ec56fdf7ec2d71ce3cef82a0c2c4bcommit | diff
sparc64: DAX request for non 4MB memory should return with unique errno

Orabug:25852910

With this change libdax can detect that mmap failed due to lack of flow
control in DAX HW and it can proceed with dax_subpage allocation.

Reviewed-by: Rob Gardner <rob.gardner@oracle.com>
Signed-off-by: Sanath Kumar <sanath.s.kumar@oracle.com>
Signed-off-by: Allen Pais <allen.pais@oracle.com>
arch/sparc/dax/dax_mm.c diff | blob | history
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