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SCSI_KMAP_ATOMIC_SG(9) SCSI mid layer SCSI_KMAP_ATOMIC_SG(9)

NAME

scsi_kmap_atomic_sg - find and atomically map an sg-elemnt

SYNOPSIS

void * scsi_kmap_atomic_sg(struct scatterlist * sgl, int sg_count, size_t * offset, size_t * len);

ARGUMENTS

sgl
scatter-gather list

sg_count

number of segments in sg

offset

offset in bytes into sg, on return offset into the mapped area

len

bytes to map, on return number of bytes mapped

DESCRIPTION

Returns virtual address of the start of the mapped page

AUTHORS

James Bottomley <James.Bottomley@hansenpartnership.com>
Author.

Rob Landley <rob@landley.net>

Author.

COPYRIGHT

April 2019 Kernel Hackers Manual 4.9.