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2 commits

Author SHA1 Message Date
Ben Gras 49b9165251 vm: mmap support
. test74 for mmap functionality
	. vm: add a mem_file memory type that specifies an mmap()ped
	  memory range, backed by a file
	. add fdref, an object that keeps track of FD references within
	  VM per process and so knows how to de-duplicate the use of FD's
	  by various mmap()ped ranges; there can be many more than there can
	  be FD's
	. turned off for now, enable with 'filemap=1' as boot option

Change-Id: I640b1126cdaa522a0560301cf6732b7661555672
2013-05-31 15:42:01 +00:00
Ben Gras 32a4e0d84d many new tests
. test70: regression test for m_out vfs race condition

The following tests use testcache.c to generate test i/o
patterns, generate random write data and verify the reads.

	. test71: blackbox full-stack test of FS operation, testing
	  using the regular VFS interface crazy i/o patterns
	  with various working set sizes, triggering only
	  primary cache, also secondary cache, and finally
	  disk i/o and verifying contents all the time
	. test72: unit test of libminixfs, implementing
	  functions it needs from -lsys and -lblockdriver
	  and the client in order to simulate a working
	  cache client and backend environment.
	. test73: blackbox test of secondary vm cache in isolation

Change-Id: I1287e9753182b8719e634917ad158e3c1e079ceb
2013-04-19 16:21:48 +00:00