49b9165251
. 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
35 lines
956 B
C
35 lines
956 B
C
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/* Common definitions and declarations for the testcache code
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* and the testcache clients.
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*/
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#include <sys/types.h>
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#define MAXBLOCKS 1500000
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#define MAXBLOCKSIZE (4*PAGE_SIZE)
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int dowriteblock(int b, int blocksize, u32_t seed, char *block);
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int readblock(int b, int blocksize, u32_t seed, char *block);
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void testend(void);
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int dotest(int blocksize, int nblocks, int iterations);
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void cachequiet(int quiet);
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void get_fd_offset(int b, int blocksize, u64_t *file_offset, int *fd);
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void makefiles(int n);
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#define OK_BLOCK_GONE -999
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/* for file-oriented tests:
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*
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* we want to flexibly split tests over multiple files
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* - for big working sets we might run over the 2GB MFS file limit
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* - we might want to test the FS being able to handle lots of
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* files / unusual metadata situations
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*/
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#define MBPERFILE 2000
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#define MB (1024*1024)
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#define MAXFILES ((u64_t) MAXBLOCKS * MAXBLOCKSIZE / MB / MBPERFILE + 1)
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extern int fds[MAXFILES], bigflag;
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