SVC_RESERVE(9) Linux Networking SVC_RESERVE(9)NAME
svc_reserve - change the space reserved for the reply to a request.
SYNOPSIS
void svc_reserve(struct svc_rqst * rqstp, int space);
ARGUMENTS
rqstp
The request in question
space
new max space to reserve
DESCRIPTION
Each request reserves some space on the output queue of the transport to make sure the reply fits. This function reduces that reserved
space to be the amount of space used already, plus space.
COPYRIGHT Kernel Hackers Manual 2.6. July 2010 SVC_RESERVE(9)
Check Out this Related Man Page
bp_mapin(9F) Kernel Functions for Drivers bp_mapin(9F)NAME
bp_mapin - allocate virtual address space
SYNOPSIS
#include <sys/types.h>
#include <sys/buf.h>
void bp_mapin(struct buf *bp);
INTERFACE LEVEL
Architecture independent level 1 (DDI/DKI).
PARAMETERS
bp Pointer to the buffer header structure.
DESCRIPTION
bp_mapin() is used to map virtual address space to a page list maintained by the buffer header during a paged- I/O request. bp_mapin()
allocates system virtual address space, maps that space to the page list, and returns the starting address of the space in the
bp->b_un.b_addr field of the buf(9S) structure. Virtual address space is then deallocated using the bp_mapout(9F) function.
If a null page list is encountered, bp_mapin() returns without allocating space and no mapping is performed.
CONTEXT
bp_mapin() can be called from user and kernel contexts.
SEE ALSO bp_mapout(9F), buf(9S)
Writing Device Drivers
SunOS 5.10 13 Sep 1992 bp_mapin(9F)
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