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(parent: e85887e) | patch
sparc64: Handle extremely large kernel TSB range flushes sanely.
authorDavid S. Miller <davem@davemloft.net>
Wed, 26 Oct 2016 02:43:17 +0000 (19:43 -0700)
committerDavid S. Miller <davem@davemloft.net>
Wed, 26 Oct 2016 02:43:17 +0000 (19:43 -0700)
commit327b712f4eb32f1aad76552fa547c18f5838a4c0
tree0776b262ce8a602398dadd1dfefb27358d1da072tree | snapshot
parente85887eee26b3cfd10e6f96be4d7c5f10dfcb25acommit | diff
sparc64: Handle extremely large kernel TSB range flushes sanely.

If the number of pages we are flushing is more than twice the number
of entries in the TSB, just scan the TSB table for matches rather
than probing each and every page in the range.

Based upon a patch and report by James Clarke.

Signed-off-by: David S. Miller <davem@davemloft.net>
arch/sparc/mm/tsb.c diff | blob | history
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