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Rev Age Author Path Log message Diff
3079 5953 d 16 h decky /trunk/uspace/srv/vfs/ disable extensive debugging output  
2958 5969 d 9 h jermar /trunk/uspace/srv/ Make VFS_MOUNT call even when mounting the root file system.  
2957 5969 d 11 h jermar /trunk/uspace/srv/vfs/ Cram VFS_MOUNT into one message. This creates a hidden demand for the sixth IPC
argument as there might be a desire to pass some options/flags in the future.		  
2821 6010 d 6 h jermar /trunk/uspace/srv/vfs/ Update comment.  
2788 6021 d 0 h jermar /trunk/uspace/ Return EBUSY if trying to mount something over an already mounted root FS.
(Contributed by Tim Post)		  
2770 6037 d 11 h jermar /trunk/uspace/ Introduce fs_handle_t, dev_handle_t and fs_index_t.  
2769 6038 d 10 h jermar /trunk/uspace/srv/vfs/ VFS index needs to be treated as uint64_t.  
2768 6038 d 12 h jermar /trunk/uspace/srv/vfs/ Fibril serialization is required when two file systems register contemporarily.  
2766 6039 d 12 h jermar /trunk/uspace/srv/vfs/ Grab the nodes_futex when manipulating node link counts in rename() and
_unlink().

Fix VFS futex definitions and declarations by replacing atomic_t by futex_t.		  
2763 6039 d 14 h jermar /trunk/uspace/ Support for rename().  
2753 6046 d 10 h jermar /trunk/uspace/ Move canonify() to libc so that it can be used also on the libc side.  
2752 6046 d 16 h jermar /trunk/uspace/srv/vfs/ Make VFS canonify path names on lookup.  
2751 6047 d 14 h jermar /trunk/uspace/ Add canonify() for file system path canonization.
Not yet used by VFS.		  
2749 6049 d 10 h jermar /trunk/uspace/srv/vfs/ contents_rwlock should not be acquired as a futex but rather as a rwlock.  
2748 6049 d 10 h jermar /trunk/uspace/srv/vfs/ Support for O_TRUNC.  
2742 6052 d 9 h jermar /trunk/uspace/srv/ Separate creation of a TMPFS node and its linking in the file system name space.
Rename VFS_FREE to VFS_DESTROY and destroy_node() to unlink_node().		  
2740 6058 d 9 h jermar /trunk/uspace/srv/vfs/ Initialize the VFS node properly.  
2735 6060 d 15 h jermar /trunk/uspace/ Support for rmdir(), unlink() and the respective VFS operations.  
2734 6060 d 17 h jermar /trunk/uspace/ Support for close().  
2731 6060 d 18 h jermar /trunk/uspace/srv/ Add the VFS_FREE operation. This operation frees up whatever resources used by
a file system node for which there is no name (i.e. an unlinked node).

Cleanup VFS operations enums and remove unneeded VFS operations.		  
2730 6061 d 20 h jermar /trunk/uspace/srv/ Introduce the notion of VFS node link counts.  
2710 6081 d 13 h jermar /trunk/uspace/ VFS_WRITE and tmpfs_write fixes.  
2709 6081 d 15 h jermar /trunk/uspace/srv/vfs/ VFS_OPEN and VFS_WRITE now understand O_APPEND.  
2708 6081 d 15 h jermar /trunk/uspace/ VFS_OPEN now understands O_CREAT and O_EXCL.  
2707 6081 d 16 h jermar /trunk/uspace/ Support for mkdir().  
2704 6082 d 19 h jermar /trunk/uspace/srv/vfs/ Additional VFS lookup flags.  
2700 6089 d 18 h jermar /trunk/uspace/ Introduce the notion of lflag (i.e. lookup flags) to support the ability to
limit the scope of VFS node types that can be opened by open() and opendir(). In
the future, lflag will also specify actions for VFS_LOOKUP handlers that will be
carried out in situations such as the VFS node is not found (e.g. implementation
of mkdir() and open() with O_CREAT in oflag).		  
2698 6090 d 13 h jermar /trunk/uspace/srv/vfs/ Small fix for VFS_TRUNCATE. Move lookup and registration code to separate
modules.		  
2693 6095 d 18 h jermar /trunk/uspace/ Add ftruncate() and support for VFS_TRUNCATE to VFS and TMPFS.  
2691 6099 d 12 h jermar /trunk/uspace/srv/vfs/ Improve the API for converting (VFS triplets, size) to VFS nodes by introducing
a new type for results of vfs_lookup_internal().		  
2690 6100 d 9 h jermar /trunk/uspace/srv/ Make a distinction between VFS operations that are common to VFS and FS
implementations, operations that are VFS only and operations that are FS
implementations only.		  
2689 6100 d 10 h jermar /trunk/uspace/srv/vfs/ Merge all VFS operations into one file.  
2688 6100 d 11 h jermar /trunk/uspace/ Make uspace rwlock API naming conventions consistent with kernel rwlock API.  
2687 6100 d 11 h jermar /trunk/uspace/srv/ Management of the cached VFS node size.  
2684 6102 d 12 h jermar /trunk/ Add libc and VFS implementation of lseek(), VFS_SEEK resp.
Add the size member to the VFS node structure (not yet initialized).		  
2683 6102 d 15 h jermar /trunk/uspace/srv/vfs/ Introduce the open file lock. Modify vfs_rdwr() to take this lock into account
when reading or writing from/to an open file.		  
2682 6102 d 17 h jermar /trunk/uspace/ Fix type in declaration of VFS node rwlock.
Introduce a dedicated type for futexes. Make the existing futex code use this
newly introduced type and fix formatting in futex.c.		  
2681 6102 d 18 h jermar /trunk/uspace/ Turn the namespace futex into rwlock.  
2680 6102 d 19 h jermar /trunk/uspace/ Add basic rwlock API for uspace so that VFS can be designed/implemented using
this API. So far, the implementation of this API merely wraps futexes into
rwlocks. Real rwlocks are wanted by ticket #54.

Using the new rwlock API, replace the VFS node content futex with an rwlock.
Lock the contents rwlock as reader on reads and as writer on writes.		  
2679 6106 d 11 h jermar /trunk/uspace/srv/vfs/ Rename unlink_futex to namespace_futex and introduce a new futex for serializing
concurrent access to a VFS node's contents by multiple clients.