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authorMartin K. Petersen <martin.petersen@oracle.com>2011-05-17 22:13:23 -0400
committerJeff Garzik <jgarzik@pobox.com>2011-05-19 20:46:01 -0400
commit5f4e206666f834340b69ddb43f86de3851c8675a (patch)
treef3e2d1a4430cbd9353b2959e3f00b4a1906ad467 /drivers/ata/pata_triflex.c
parentf68b3afe45051d43e9f9277c6f1404670e1b99d2 (diff)
libata: Use Maximum Write Same Length to report discard size limit
Previously we used Maximum Unmap LBA Count in the Block Limits VPD to signal the maximum number of sectors we could handle in a single Write Same command. Starting with SBC3r26 the Block Limits VPD has an explicit limit on the number of blocks in a Write Same. This means we can stop abusing a field related to the Unmap command and let our SAT use the proper value in the VPD (Maximum Write Same Length). Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com> Cc: stable@kernel.org
Diffstat (limited to 'drivers/ata/pata_triflex.c')
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