Commit Graph

42 Commits

Author SHA1 Message Date
Axel Dörfler
0d4c16e0c0 * Reduced the stack usage of most of the I/O paths - there were several places
that put one or more full paths on the stack before, which could cause some
  problems under certain conditions.
* Cleaned up KPath, ie. use size_t instead of int32 where appropriate, added
  license.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16585 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-03-05 18:11:59 +00:00
Axel Dörfler
bb674499f8 * Finally implemented B_WATCH_MOUNT, ie. Tracker now shows newly mounted volumes
(mounting still only works from the Terminal).
* Shuffled functions in node_monitor.cpp around to clearly differentiate between
  private, private kernel, and public kernel functions.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16575 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-03-03 11:48:49 +00:00
Axel Dörfler
3ea7d1fcbe Minor cleanup, now returns B_NAME_TOO_LONG if the query string or mount parameters were
longer than 64k.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16527 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-02-27 13:23:29 +00:00
Jérôme Duval
5a2ad00cab fix a TODO in _user_mount : added an argsLength parameter
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16480 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-02-20 18:04:27 +00:00
Axel Dörfler
979aeaf71c Fixed bug #97:
* BEntry::Remove() now uses _kern_remove_dir() for directories.
* Added fd parameter to _kern_remove_dir().
* Fixed LibBeAdapter's _kern_unlink() to only work on files, and
  added _kern_remove_dir() for directories.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16078 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-01-25 11:12:21 +00:00
Axel Dörfler
7817211a38 Allow only root to look at other team's file descriptors.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15992 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-01-17 01:44:18 +00:00
Axel Dörfler
0e382a4667 Implemented a syscall to get information about the open file descriptors of all teams.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15991 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-01-17 01:29:18 +00:00
Axel Dörfler
ddb7d0b6a6 Implemented force unmounting - by passing the "-f" option to "unmount" you
can now safely unmount volumes that are still in use by some applications.
Minor fixes to the FD disconnection implementation:
* put_fd() checked the condition for being able to disconnect a descriptor
  incorrectly (causing the FD to never be disconnected).
* remove_fd() would hand out disconnected descriptors (but should have
  returned NULL for them).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15952 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-01-15 19:26:42 +00:00
Axel Dörfler
16cfe613cd Fixed vfs_lookup_vnode() - it's not called with the mutex already locked anymore.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15647 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-12-21 20:07:33 +00:00
Axel Dörfler
ea2cd27e57 * Fixed the strange vm_cache_ref reference count mechanism: now, a fresh
vm_cache_ref starts with a reference count of 1. When acquiring a vm_cache,
  you no longer need to worry if that should go through the vm_store, or not;
  as it now always does.
* map_backing_store() no longer needs to play with the vm_cache_ref
  references.
* that simplified some code.
* vfs_get_vnode_cache() now grabs a reference to the cache, if successful.
* better balanced vnode ownership on vnode_store creation (vnode_store
  released the vnode before if its creation failed).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15641 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-12-21 17:00:03 +00:00
Axel Dörfler
89f5f72a15 * Added debug output to vm_low_memory.cpp.
* Minor cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15568 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-12-16 17:35:03 +00:00
Axel Dörfler
d0d37bdfd1 * vfs_init() is now called later in the startup sequence - since no core kernel
service depends on it, it doesn't make any sense to call it that early in the
  game.
* The VFS now has a low memory handler for vnodes as well. If there is enough
  memory left, it won't free any vnodes anymore.
* Potential crashing bug fix: some functions did not check if the FD passed
  in belonged to the right type; they just assumed it had a valid vnode, but
  it could have had a mount structure associated as well.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15566 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-12-16 16:11:36 +00:00
Axel Dörfler
04cd47db59 common_access() now follows the same logic as traversing paths: if the file system
doesn't export the fs_access() function, it assumes access is granted.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14816 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-11-10 11:17:03 +00:00
Axel Dörfler
7121425eb5 Turns out we could remove a mount point...
Under BeOS remove_vnode() is failing in this case, which looks like a good idea to imitate.
Also, pipefs/rootfs didn't handle that case - they even removed the entry before calling
remove_vnode() - they now behave correctly. And also BFS now returns the actual error code
received from remove_vnode() instead of B_ERROR.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14456 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-10-20 16:34:18 +00:00
Axel Dörfler
2db3fced5f Moved vfs_bootstrap_file_systems() and vfs_mount_boot_file_system() out of vfs.cpp
and into its own file vfs_boot.cpp.

Added basic support for booting from CD - it doesn't give CDs a higher priority,
so you could end up booting from HD when you didn't explicetly select "CD-ROM"
in the boot loader. Eventually, it should only boot from HD in this case, if
booting from CD failed (because of a missing boot partition or whatever).

fs_mount(), _kern_mount(), and _user_mount() will now return the dev_t of the
mounted device, and not just B_OK. Maybe we should have fs_unmount() work on
a dev_t instead of a path as well...


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14403 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-10-17 14:01:04 +00:00
Axel Dörfler
9a63d90397 Added kernel private VFS functions vfs_entry_ref_to_vnode() and vfs_vnode_to_node_ref().
Minor cleanup of vfs.h.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14314 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-10-06 09:26:27 +00:00
Axel Dörfler
681779f1c8 Our close-on-exec flag handling was broken: it's supposed to be specified per slot, not
per file descriptor (a descriptor can be shared among several slots). There is now a
second table in the io_context structure that contains that information in a bitmap.
There are now two new (private) functions to control the close-on-exec flag, fd_close_on_exec(),
and fd_set_close_on_exec().
F_DUPFD, dup(), and dup2() are supposed to clear the close-on-exec flag on the duplicated
slot - this fixes bug #57 (no output after a redirect of a shell builtin).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14313 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-10-06 09:02:59 +00:00
Axel Dörfler
1670b8f596 num_used_fds counting was broken for dup2() and vfs_new_io_context() when it was
used with a parent context.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14311 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-10-06 08:53:17 +00:00
Axel Dörfler
e8d4a05d8b Renamed the "iocontext" command to "io_context" to match the structure name.
It now also accepts a team ID and will then dump its io_context.
Accidently mixed used/max FD counter.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14310 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-10-06 08:47:03 +00:00
Axel Dörfler
333735e881 Added a new debugger command "iocontext" that prints out info about the kernel's
I/O context (or a specified one) including its FDs.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14304 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-10-05 16:39:45 +00:00
Axel Dörfler
f10cba9aec Changed get_mount() to return a status code instead of just the mount or NULL.
Some fields of fs_mount were not properly initialized when FS's mount function
was called, and therefore, could let get_mount() return a mount structure that
was not yet read for public consumption (this should fix bug #51).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14223 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-09-22 17:45:43 +00:00
Axel Dörfler
47a54bea53 Rootfs now starts with 1 for the first inode ID.
Instead of -1, vnode_path_to_vnode() now returns the ID of the starting vnode when it
doesn't need to traverse the path at all.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14081 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-08-28 20:08:32 +00:00
Axel Dörfler
7b285866ff Fixed hash functions: when the key was lower than 0 (could happen with entry_refs
and node_refs passed in) they returned an invalid index (larger than range).
Fixed rootfs compilation with tracing turned on.
Minor cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14065 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-08-26 02:01:21 +00:00
Axel Dörfler
e0481f928e Now marks a partition unmounted on unmount - that allows a volume to be remounted as often as you like.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14036 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-08-21 13:45:15 +00:00
Axel Dörfler
5b14757a30 We now have a consistent scheme what the file system should do with its root
node: like in BeOS, it *must* own the root node (ie. via publish_vnode()),
unlike in BeOS, it must also drop that reference on unmount (symmetrical
behaviour definitely makes more sense to me than the Be way).
Since all existing file systems for Haiku behaved differently, I brought them
in line (only pipefs already adhered to that new standard for some reason,
rootfs did only released the node, devfs did nothing - despite it's probably
not really useful to be able to unmount them).
fs_mount() will now panic if a file system does not do this correctly (useful
for file system developing).
Unmounting is now theoretically working again: when trying to unmount a BFS
volume, the kernel crashes in the block cache destruction... (but that's work
for tomorrow).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14017 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-08-21 00:41:16 +00:00
Axel Dörfler
e8e4accd16 Add some useful debugger commands to the VFS layer for dumping a vnode, an fs_mount, and
the mounts/vnodes list.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@13971 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-08-18 15:07:38 +00:00
Axel Dörfler
7964c56d67 Added vfs_get_cwd() call to get the mount_id and vnode_id of the current
working directory (instead of the full path).
Cleanup of some remaining "int" status variables (where it should have
been a "status_t").


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@13924 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-08-09 16:25:01 +00:00
Axel Dörfler
eab435cd59 vfs_get_vnode_cache() now only allocates a new cache if requested: this
prevents the system to allocate caches for files that don't use or have
a file cache (ie. only those can be mmap()ed!).
Therefore, cache_prefetch() no longer crashes when trying to prefetch
files without a file cache.
read_into_cache() no longer does anything if the requested size is 0.
Fixed a bug in cache_prefetch_vnode(): if the cache couldn't be retrieved,
it put the vnode, but didn't own it (the caller does).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@13904 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-08-05 11:52:22 +00:00
Axel Dörfler
95839f5c92 The file cache now has another init method that is called after the boot
device becomes available.
Currently, it opens the "launch_speedup" module (if available), later it
should consult a settings file for what to do.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@13894 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-08-03 17:25:03 +00:00
Axel Dörfler
c50cfe23dd Fixed crashing bug in remove_vnode(): it freed the vnode, but it didn't
remove it from the hash, and thus, left a dead pointer around.
free_vnode() does now also remove the vnode from the hash - this is done
so that the file system is notified about removal/put of the vnode before
there is a chance that this vnode is recreated/reloaded (could make the
life of file system writers a bit easier).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@13877 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-08-02 11:20:04 +00:00
Axel Dörfler
b72cf2601f Renamed vfs_vnode_acquire_ref() to vnode_acquire_vnode().
Removed vfs_vnode_release_ref(), as vfs_put_vnode() already does the same thing.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@13867 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-08-01 14:32:23 +00:00
Axel Dörfler
b7d8ef5a0d The term vnode_ptr is not used anywhere else; renamed vfs_put_vnode_ptr() to vfs_put_vnode().
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@13865 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-08-01 14:17:41 +00:00
Axel Dörfler
9882caaadd The path resolving functions can now also fill in the ID of the parent directory.
This is currently only used for the file cache module API.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@13862 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-08-01 12:44:59 +00:00
Axel Dörfler
54476a21b5 file_create() now also supports FD relative path specifications.
This was the cause for some apps to put their settings files to the current
directory, and also that Tracker did not find some icons (from the icons
it installed in the MIME database).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@13645 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-07-12 16:33:10 +00:00
Axel Dörfler
ada5975312 fs_mount() and get_file_system() can now both handle file system names
in the form "bfs" and "file_systems/bfs/v1".


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@12791 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-05-23 18:22:04 +00:00
Axel Dörfler
47f39c93cb Merged the disk device manager module interface for file systems with the
VFS's interface, so that a file system only has to implement one interface.
As a side effect, the automatic file system detection may now work (not yet
tested, though).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@12786 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-05-23 17:15:56 +00:00
Axel Dörfler
d5b04e50f8 First step into a new block allocation strategy for the block_cache
(right now, it's still malloc/free, just encapsulated in an allocator class).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@12662 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-05-13 18:18:28 +00:00
Axel Dörfler
6bdc405f75 Whenever KPath is used, it will now be tested if it could be initialized
(thanks to Ingo for the reminder...).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@12652 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-05-12 23:31:04 +00:00
Axel Dörfler
cbd1d9977f Changed all _kern_*() calls to use KPath instead of a path buffer on the stack.
This reduces the stack usage quite a lot, and since file system calls could be
nested (for example, a mounted image on a volume), definitely a must, too.
Might be a good idea for user calls, too, though, although it's not urgent.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@12636 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-05-12 01:14:01 +00:00
Axel Dörfler
0953c83ebd Fixed another bug: after a partition had been mounted, it was only marked
mounted, but no one told it about its volume ID - that caused "mountvolume"
not to be able to return a valid mount point.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@12548 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-05-03 01:59:17 +00:00
Axel Dörfler
47729f044c Fixed a possible bug in path_to_vnode(): if called before a root
file system has been mounted, it would have crashed (that for example
happened if you deleted the kernel settings file...).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@12547 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-05-03 01:05:20 +00:00
Axel Dörfler
2d690920ac Renamed system/core to system/kernel.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@12360 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-04-13 13:22:10 +00:00