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authorMike Christie <michaelc@cs.wisc.edu>2005-12-05 02:37:06 -0600
committerJames Bottomley <jejb@mulgrave.(none)>2005-12-15 15:11:40 -0800
commitdefd94b75409b983f94548ea2f52ff5787ddb848 (patch)
tree0138b2dae748de88edaee4da23431f1a9dd347a1 /fs/minix/file.c
parent8b05b773b6030de5b1bab1cbb0bf1ff8c34cdbe0 (diff)
[SCSI] seperate max_sectors from max_hw_sectors
- export __blk_put_request and blk_execute_rq_nowait needed for async REQ_BLOCK_PC requests - seperate max_hw_sectors and max_sectors for block/scsi_ioctl.c and SG_IO bio.c helpers per Jens's last comments. Since block/scsi_ioctl.c SG_IO was already testing against max_sectors and SCSI-ml was setting max_sectors and max_hw_sectors to the same value this does not change any scsi SG_IO behavior. It only prepares ll_rw_blk.c, scsi_ioctl.c and bio.c for when SCSI-ml begins to set a valid max_hw_sectors for all LLDs. Today if a LLD does not set it SCSI-ml sets it to a safe default and some LLDs set it to a artificial low value to overcome memory and feedback issues. Note: Since we now cap max_sectors to BLK_DEF_MAX_SECTORS, which is 1024, drivers that used to call blk_queue_max_sectors with a large value of max_sectors will now see the fs requests capped to BLK_DEF_MAX_SECTORS. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'fs/minix/file.c')
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