jeff 4de0ae322c - Add a new 'flags' parameter to getblk().
- Define one flag GB_LOCK_NOWAIT that tells getblk() to pass the LK_NOWAIT
   flag to the initial BUF_LOCK().  This will eventually be used in cases
   were we want to use a buffer only if it is not currently in use.
 - Convert all consumers of the getblk() api to use this extra parameter.

Reviwed by:	arch
Not objected to by:	mckusick
2003-03-04 00:04:44 +00:00
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