Changed the last argument of _kern_mount() to be a string rather than a void pointer.
Greatly reduced the stack usage of _user_mount(); it now uses KPath instead
of on stack paths. It now also copies the parameter argument on the heap.
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9692 a95241bf-73f2-0310-859d-f6bbb57e9c96
devfs_read_link() and rootfs_read_link() could write beyond the buffer
size passed in (off by one).
The comment for _kern_read_link() didn't fit to what the function really
did.
common_read_link() no longer null terminates the link - it's the file
system's responsibility to do that.
fs_read_link() is not supposed to return the length of the link anymore,
but only B_OK for success.
Note, we deviate slightly from POSIX here, where even a buffer too small
would be filled, and no terminating null byte has to be written at all.
We always return an error in case the buffer is too small, and the link
is not partially copied into the buffer.
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9652 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Added resolve_mount_point_to_volume_root() which does what
resolve_volume_root_to_mount_point() did. IOW the latter one didn't
do what it advertised.
* Fixed dir_vnode_to_path(). Basically broken due to the broken
resolve_volume_root_to_mount_point(), but also compared potentially
unrelated vnode IDs (belonging to different volumes).
* Fixed get_dir_path_and_leaf(). It didn't deal correctly with paths
ending in '/' (including the root dir).
* fs_mount() does now accept a NULL fsName, getting the FS name from
the DDM in this case.
* fs_mount() now also supports mounting file images; it lets the DDM
create a file device for them.
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9629 a95241bf-73f2-0310-859d-f6bbb57e9c96
* fs_mount() and fs_unmount() are now aware of partitions. A device to
be mounted is looked up by the DDM and the mount state and mount
cookie of the corresponding KPartition are updated accordingly.
Still missing is support for mounting files. Moreover the device path
needs to be normalized.
* Added RecursiveLockAutoLocker class to ease the `goto errN' pain a bit.
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9555 a95241bf-73f2-0310-859d-f6bbb57e9c96
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
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
* 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
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
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
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
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
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
Added an vfs_get_cookie_from_fd() call to at least temporarily support the
cookie as in the original devfs (not sure yet how this changes).
Implemented vfs_get_file_map() which calls the corresponding FS function.
Moved vfs_get_vnode_cache() around.
vfs_get_vnode() temporarily does its job unlocked - its only to be used (safely)
from within the file cache, but this should definitely be done better.
Fixed a bug in get_vnode_name() - it did not support getting the name of
a root directory; it didn't pass the call through to the parent file system.
Fixed a bug in _user_entry_ref_to_path() which would add another "/" for
files immediately under the root (ie. "df" showed "//boot" as mount point
for the boot partition).
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8873 a95241bf-73f2-0310-859d-f6bbb57e9c96
allocate a cache twice.
The VFS is now responsible for allocating the cache object - it will call
the VM to do that if necessary.
Added another accessor call to a pointer to the VFS private vnode object.
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8817 a95241bf-73f2-0310-859d-f6bbb57e9c96
not support the read_fs_info() function - only the values that the VFS
does know about are filled in, then.
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8735 a95241bf-73f2-0310-859d-f6bbb57e9c96
* null-terminated the result of common_read_link().
* Fixed return value of _user_read_link().
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8705 a95241bf-73f2-0310-859d-f6bbb57e9c96
Improved returned types.
Added and initializes Disk Device Manager.
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@7972 a95241bf-73f2-0310-859d-f6bbb57e9c96
correctly when it entered the next recursion of vnode_path_to_vnode().
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@7854 a95241bf-73f2-0310-859d-f6bbb57e9c96
device with BFS - if it succeeds, it will print out the contents of the
volume's root directory.
fs_mount() now makes the mount structure available when mount() from the
FS is called - so that new_vnode() and get_vnode() can work.
fs_mount() did not correctly clean up when something went wrong; it also
didn't notice if the mount's recursive lock couldn't be created.
Some minor debug output improvements.
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@7845 a95241bf-73f2-0310-859d-f6bbb57e9c96
Also renamed elf_load_kspace() to load_kernel_add_on(), and friends.
The new unload_kernel_add_on() now has an image_id as parameter, no longer
a path (like the former elf_unload_kspace()).
Fixed missign file system unload.
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@7527 a95241bf-73f2-0310-859d-f6bbb57e9c96
the size of the stat structure to allow extensions of that structure.
Renamed those syscalls to the new naming scheme.
Updated the syscalls to support stat extensions.
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@7494 a95241bf-73f2-0310-859d-f6bbb57e9c96
system - it's now mounted a bit later.
Renamed vfs_register_filesystem() to vfs_register_file_system().
Changed return codes to status_t where appropriate.
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@7424 a95241bf-73f2-0310-859d-f6bbb57e9c96
Added our license to the updated source files.
Minor cleanup.
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@6672 a95241bf-73f2-0310-859d-f6bbb57e9c96
