Commit Graph

902 Commits

Author SHA1 Message Date
Axel Dörfler
b492de88e3 I've already switched the page pointer to vm_cache, so this comment was
not necessary anymore.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9268 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-10-08 23:27:04 +00:00
Axel Dörfler
adf3b19660 resize_area() must unmap the area beyond the new size, if the area has shrinked.
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9267 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-10-08 23:19:33 +00:00
Axel Dörfler
ed3d2e92e8 Added tests for vm_copy_area() and resize_area().
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9266 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-10-08 23:12:55 +00:00
Axel Dörfler
ad07c81011 vm_cache_resize() now requires you to have the vm_cache_ref lock held.
This actually reflects the only usage of this function anyway, and thus,
fixes the resize_area() function.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9265 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-10-08 23:11:50 +00:00
Axel Dörfler
f774bf16ea Implemented vm_copy_area(), mainly a support function for fork().
vm_page no longer keeps a pointer to the vm_cache_ref but to the vm_cache.
This cleans the page handling when having to make an area copy-on-write;
regions belong to vm_cache_ref, pages to vm_cache.
Fixed some return types.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9264 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-10-08 22:56:51 +00:00
Axel Dörfler
c77c1efff5 Removed the broken vm_resize_region() and implemented it properly in resize_area(),
some ToDo-items are left.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9260 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-10-08 15:16:29 +00:00
Axel Dörfler
d0f673c8e2 Implemented vm_cache_resize(): it removes all pages outside the current bounds.
It currently checks for temporary caches, but it should really only be used
with regions for anonymous memory.
Fixed some return types.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9259 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-10-08 15:10:50 +00:00
Axel Dörfler
6978315d3a B_EXACT_KERNEL_ADDRESS doesn't really make a lot of sense.
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9256 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-10-08 01:16:54 +00:00
Axel Dörfler
da504d877d Removed team::_aspace_id since it already has a direct pointer to it.
Changed the way a vm_address_space is deleted: instead of having to explicitly
call vm_delete_aspace(), the last vm_put_aspace() will remove it.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9255 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-10-07 17:17:04 +00:00
Axel Dörfler
1a705b91b7 Removed team::_aspace_id since it already has a direct pointer to it.
Changed the way a vm_address_space is deleted: instead of having to explicitly
call vm_delete_aspace(), the last vm_put_aspace() will remove it.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9254 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-10-07 17:11:54 +00:00
Axel Dörfler
894e120a01 Moved everything from vm.c belonging to vm_address_space into a separate file.
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9253 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-10-07 16:15:49 +00:00
Axel Dörfler
acfca1a3f5 We now have a working exec_team() function (the backend of the exec() function family)!
Should be tested and verified more intensively, though.
Moved the creation, initialization, and deletion of the team_arg structure out of
team_create_team(); it's now also used by exec_team().
Renamed kfree_strings_array() to free_strings_array().
Renamed the fields of the team_arg structure to be more in sync with the names used
at other places.
Fixed the routine that copied the environment/arguments into the userland space.
Improved and fixed the user_copy_strings_array() function.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9250 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-10-07 15:34:17 +00:00
Axel Dörfler
5ad2b8edae Added exec() support function vm_delete_areas(); factored that code out
of vm_delete_aspace() (which now calls it).
Fixed some return types.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9248 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-10-07 15:15:08 +00:00
Axel Dörfler
5c41c39314 Implemented exec() support function vfs_exec_io_context() which closes all
file descriptors that have O_CLOEXEC set.
Minor cleanup.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9242 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-10-07 14:47:58 +00:00
Ingo Weinhold
5741bcb5d8 * Eliminated fs_mount::mount_point. It wasn't really used anyway, only
in dir_vnode_to_path() which does now continue until hitting "/".
* Refactored common volume root to mount point resolution code into a
  separate function.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9210 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-10-05 16:08:31 +00:00
Axel Dörfler
d6571884c7 Added basic fcntl() functions and syscalls.
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9201 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-10-05 13:36:44 +00:00
Axel Dörfler
c7a0c0f9e1 Added set_flags() support where needed. devfs now uses the ioctl() mechanism
via B_SET_(NON)BLOCKING_IO to notify the device about any access mode changes.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9199 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-10-05 13:24:12 +00:00
Axel Dörfler
40cc0ebde2 Added an endless loop detection; it will now store up to 16 stack positions
and will check against those. This fixes the rare case an interrupt frame
could cause before.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9191 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-10-04 22:52:56 +00:00
Axel Dörfler
0f5095f9f9 Now uses thread::user_stack_size instead of STACK_SIZE. This also fixes a
potential bug if MAIN_STACK_SIZE and STACK_SIZE would have been different.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9190 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-10-04 22:41:34 +00:00
Axel Dörfler
57bf060563 Fixed another stupid bug in the file cache: when the first read was a partial
read over two blocks, some memory behind that memory could be trashed.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9188 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-10-04 21:03:31 +00:00
Axel Dörfler
2c8b3014ef Moved select events to Select.h. Now includes that header, too.
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9142 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-10-01 00:31:20 +00:00
Ingo Weinhold
b4c1459318 Make use of the newly introduced generated syscall numbers header.
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9135 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-09-30 23:30:29 +00:00
Ingo Weinhold
89e53cea26 It is now understood where the _kern_restore_signal_frame() is used.
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9132 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-09-30 23:25:55 +00:00
Axel Dörfler
8b41e11557 Fixed a possible deadlock (the requests benaphore is now unlocked before
waiting on the write semaphore).
The write functions didn't change the buffer address on a partial write
which could lead to corruption in the pipe data.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9111 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-09-29 14:30:53 +00:00
Axel Dörfler
a83d9efacf Some changes to debug output.
Fixed a warning that popped up if TRACE_VM was defined.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9110 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-09-29 14:24:44 +00:00
Axel Dörfler
f3df760478 Fixed the return type of user_memcpy() and friends.
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9105 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-09-29 10:47:46 +00:00
Axel Dörfler
f7bc46254a readwrite() was broken when it had to load more than one missing page at once.
It now prints a warning if the device driver doesn't handle iovecs correctly.
Again, this could lead to very strange behaviour.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9092 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-09-28 16:30:25 +00:00
Axel Dörfler
da63fa920a device_open() gets the relative path from devfs mount point, not just the
name of the node.
devfs_read_stat() now (presumably temporary) sets the size of the device
for partitions and reports a block device rather than a character device
if the size unequals zero.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9085 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-09-28 03:22:56 +00:00
Ingo Weinhold
3b554981d3 * Corrected sMountMutex comment.
* Turned sMountOpMutex into a recursive lock.
* Re-inserted sMountOpLock locking in vnode_path_to_vnode(). It doesn't
  deadlock on mounting anymore. :-P
* Added a check in fs_mount(), whether the mount point is a directory. If
  it wasn't, in general it wouldn't be possible to get its parent
  directory.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8993 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-09-17 12:29:27 +00:00
Axel Dörfler
452ba3abd1 Just like any other mount point, "/" should not be remounted - dunno
why that was there before. Thanks to Ingo for pointing this out.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8981 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-09-16 15:34:26 +00:00
Axel Dörfler
41f37da0fd Added empty and non-working syscalls for _user_fork(), _user_wait_for_child(),
and _user_exec().


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8973 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-09-15 15:45:37 +00:00
Axel Dörfler
75e4b8694c Removed the STREAM_TYPE_ constants.
Now maintains uid/gid/mode, modification and creation time for all nodes.
Implemented rootfs_write_stat() completely. rootfs_read_stat() now fills
in all required values.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8962 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-09-15 00:44:57 +00:00
Axel Dörfler
31a726883b Now maintains uid/gid/mode/mtime/crtime, added pipefs_write_stat().
Access permissions are not verified.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8961 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-09-15 00:15:52 +00:00
Axel Dörfler
e4a0232cc7 Small bugfix: rootfs_read_stat() returned creation time instead of modification
time in st_mtime.
rootfs_write_stat() now properly locks the node access.
Minor cleanup.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8960 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-09-15 00:02:55 +00:00
Axel Dörfler
a837c705f5 Now has a basic understanding of uid/gid/mode values and maintains it -
permissions are not tested, though.
Removed the STREAM_TYPE_ constants.
Now maintains a modification and creation time for all nodes.
Implemented rootfs_write_stat() completely. rootfs_read_stat() now fills
in all required values.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8959 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-09-14 23:42:14 +00:00
Axel Dörfler
2ef444519e Work-around for buggy device drivers: some drivers (including our current
IDE drivers :-)) don't respect the total amount of bytes to be read in the
former readv() (now read_pages()) call. This can potentially fix all sorts
of strange errors in userland :)
Fixed the debug build.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8938 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-09-14 17:37:43 +00:00
Axel Dörfler
aad5dc5b3d Removed holding the sMountOpMutex added by the last commit; although this
recreates a race condition, having it here breaks the kernel as fs_mount()
calls this function and already holds the mutex.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8936 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-09-14 15:46:02 +00:00
Ingo Weinhold
79c795cc5d * create_new_vnode() now also fails, if the volume is about to be
unmounted.
* Clarified a comment in fs_mount().
* Added a bit of documentation regarding the mutexes and the basic vnode
  functions.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8930 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-09-13 14:53:09 +00:00
Ingo Weinhold
2c731698a2 Verified incorrect behavior of entry_ref_to_vnode() when hitting a mount point or the parent of a mount point.
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8923 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-09-12 10:58:29 +00:00
Ingo Weinhold
1f8bfacc76 *_read_dir() now also returns "." and ".." Entries.
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8922 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-09-12 00:06:37 +00:00
Ingo Weinhold
4f9e4fc932 * The VFS cannot just pass the result of fs_read_dir() calls back to
Userland. It must always set the d_pdev and d_pino fields and, if the
  Entry refers to a mount point even replace d_dev and d_ino.
* Added a TODO comment to entry_ref_to_vnode(). It should take care of
  mount points, as vnode_path_to_vnode() does, I believe. Will verify
  and fix that next.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8921 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-09-12 00:05:51 +00:00
Ingo Weinhold
119e5eeef8 *_read_dir() now also returns "." and ".." Entries.
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8920 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-09-12 00:00:29 +00:00
Axel Dörfler
eab2037630 When a B_CONTIGUOUS area is created, its pages are now reserved upfront, as
this is the one thing most likely to fail - it now also handles this case
gracefully instead of dying.
Small cleanup, cleared some other ToDos: some user functions now delete
the area when they could not copy the target address.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8911 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-09-11 00:38:54 +00:00
Axel Dörfler
76faade4e7 Cleanup, no functional change.
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8910 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-09-10 23:43:15 +00:00
Axel Dörfler
d79751261c Added write support for the cache - it only writes internally right now,
it never writes back dirty pages. Code is not tested!


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8905 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-09-10 19:49:46 +00:00
Axel Dörfler
327981c3d8 Now includes arch_config.h instead of arch_cpu.h (because the info contained therein has moved).
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8901 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-09-10 15:20:37 +00:00
Ingo Weinhold
61b83cc210 * Changed my doxygen comment markers from Qt to javadoc style, still
leaving the tags Qt style though. That's a bit weird, but that's the
  way Axel likes it, and we want to keep him happy, don't we? ;-P
* The common_[path_]read_stat() now fills in st_dev and st_ino in the
  result stat structure after the FS had its go. The information is
  readily available in the VFS, so why bother the FSs. In fact devfs
  didn't (and still doesn't) fill in st_dev which gave dev_for_path()
  some head ache.
* Modified _user_open_parent_dir() to accept a NULL buffer for the
  entry name and added a doxygen comment for it.

df now works properly on Haiku (save that printf() doesn't support
floating point numbers at the moment).


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8898 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-09-09 23:21:09 +00:00
Ingo Weinhold
86170a3cd5 * Got rid of devfs_cookie::stream. It was superfluous since one can
always also access it through the devfs_vnode. This also solves an issue
  in devfs_read() where an access of a cookie->stream would crash the
  kernel, since cookie->stream was not set in devfs_open().
* devfs_open() now doesn't fail for directories and symlinks anymore.
  That prevented BNode to work for devfs dirs and symlinks.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8897 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-09-09 23:06:04 +00:00
Ingo Weinhold
1dae20235b If the /..' is /' then the name of the root node should consequently be
`.'. This fixes the _kern_open_parent_dir() syscall for the root directory.

I realized, that rootfs_read_dir() doesn't return the entries `.' and `..',
unlike Be's rootfs. Shall I add those, Axel?


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8895 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-09-08 21:31:18 +00:00
Axel Dörfler
bd80f1c775 Now handles NULL cookies for the VM fs calls gracefully (in case someone
would want to mmap() a device directly).


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8884 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-09-07 15:39:03 +00:00