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* dev.c (dev_read: ensure_buf): Fix sloppy bugs in last change.
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* dev.c (dev_open): Use mmap instead of vm_allocate.
(dev_read): Likewise.
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* dev.c: Add #include <sys/mman.h> for munmap decl.
* pager.c: Likewise.
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* dev.c (dev_buf_fill): Use munmap instead of vm_deallocate.
(dev_close): Likewise.
(dev_read): Likewise.
* pager.c (pager_write_page): Likewise.
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* storeio.c (check_open_hook): Translate D_NO_SUCH_DEVICE to ENXIO.
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* pager.c (dev_stop_paging): Do not try to count ports in
PAGER_PORT_BUCKET if it has not been created.
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* storeio.c (trivfs_modify_stat): Do not assume that we have the
device open in the caculation of st_mode. If the device is not
open, only return S_IFCHR if inhibit_cache is set.
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* storeio.c (trivfs_modify_stat): Return S_IFCHR if block size is 1.
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* storeio.c (trivfs_modify_stat): Return S_IFCHR iff inhibit_cache
set, otherwsie S_IFBLK. For a block-addressed device, S_IFCHR means
"must do whole-block i/o".
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* io.c (trivfs_S_file_syncfs): Fix inverted test.
Reported by OKUJI Yoshinori <okuji@kuicr.kyoto-u.ac.jp>.
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* storeio.c (options): New option -c/--no-cache.
(inhibit_cache): New variable.
(parse_opt): Make -c set it.
(trivfs_append_args): Report --no-cache if set.
(check_open_hook): Pass inhibit_cache flag to dev_open.
* dev.h (struct dev): New member `inhibit_cache'.
(dev_open): Update decl.
* dev.c (dev_open): Take new arg inhibit_cache, store in new dev.
If set, don't initialize buf_offs, io_lock, pager, pager_lock.
(dev_read, dev_write): If DEV->inhibit_cache is set, allow only
whole-block i/o: EINVAL for non-whole-block attempts.
* pager.c (dev_get_memory_object): If DEV->inhibit_cache is set, don't
make our own pager; if store_map returns EOPNOTSUPP, so do we.
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* storeio.c (main): Fix return type to int, and use return.
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* pager.c (dev_get_memory_object): Deal with errors from
pager_create properly.
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* pager.c (service_paging_requests): New args for
ports_manage_port_operations_multithread.
* storeio.c (main): Likewise.
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Don't bother returning EBADF.
(trivfs_S_io_readable, trivfs_S_io_read, trivfs_S_io_map):
Return EBADF instead of EINVAL.
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Return EINVAL instead of EBADF.
(trivfs_S_io_map):
Return EINVAL if CRED cannot be read or written.
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Add iohelp.
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Add PROT arg.
Use store_map.
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Pass PROT argument to dev_get_memory_object.
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Add PROT arg.
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Make sure there are enough references to MEMOBJ for both read & write ports.
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(dev_stop_paging): Work entirely by flushing user pagers; don't kill pager.
(pager_clear_user_data): Zero our pointer to the pager.
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New function (was nested in main).
(doc):
Make an initialized array.
(fsys_port_class, root_port_class, port_bucket, trivfs_protid_portclasses,
trivfs_protid_nportclasses, trivfs_cntl_portclasses,
trivfs_cntl_nportclasses):
Variables removed.
(argp, argp_kids):
New variables (were nested in main).
(main):
Don't set or use port class/bucket variables, let trivfs_startup do it.
Add FSYS variable.
(trivfs_goaway):
Get ROOT_PORT_CLASS from FSYS.
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* storeio.c (trivfs_check_open_hook): New arg syntax.
(check_open_hook): Likewise.
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Use elements of type `struct argp_child' for KIDS.
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If necessary to enforce security, make a copy of STORE and inactivate it
before returning.
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Function removed (trivfs default is now sufficient).
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