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Garbage collect comments and a macro which related to the pre-r284296

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support for a "segment block" extension in FreeBSD's Xen blkfront/blkback
drivers.

This commit should not result in any functional changes.
This commit is contained in:
Colin Percival 2015-06-21 06:52:03 +00:00
parent c077dc26e7
commit ad935ed241
1 changed files with 2 additions and 12 deletions
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14
sys/dev/xen/blkfront/block.h
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@ -68,9 +68,8 @@
#define XBD_MAX_RING_PAGES 32
/**
* The maximum number of outstanding requests blocks (request headers plus
* additional segment blocks) we will allow in a negotiated block-front/back
* communication channel.
* The maximum number of outstanding requests we will allow in a negotiated
* block-front/back communication channel.
*/
#define XBD_MAX_REQUESTS \
__CONST_RING_SIZE(blkif, PAGE_SIZE * XBD_MAX_RING_PAGES)
@ -82,15 +81,6 @@
#define XBD_MAX_REQUEST_SIZE \
MIN(MAXPHYS, XBD_SEGS_TO_SIZE(BLKIF_MAX_SEGMENTS_PER_REQUEST))
/**
* The maximum number of segments (within a request header and accompanying
* segment blocks) per request we will allow in a negotiated block-front/back
* communication channel.
*/
#define XBD_MAX_SEGMENTS_PER_REQUEST \
(MIN(BLKIF_MAX_SEGMENTS_PER_REQUEST, \
XBD_SIZE_TO_SEGS(XBD_MAX_REQUEST_SIZE)))
typedef enum {
XBDCF_Q_MASK = 0xFF,
/* This command has contributed to xbd_qfrozen_cnt. */