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Rev Age Author Path Log message Diff
2752 5978 d 5 h jermar /trunk/uspace/srv/vfs/ Make VFS canonify path names on lookup.  
2751 5979 d 3 h jermar /trunk/uspace/ Add canonify() for file system path canonization.
Not yet used by VFS.
 
2749 5980 d 23 h jermar /trunk/uspace/srv/vfs/ contents_rwlock should not be acquired as a futex but rather as a rwlock.  
2748 5980 d 23 h jermar /trunk/uspace/srv/vfs/ Support for O_TRUNC.  
2747 5981 d 22 h jermar /trunk/uspace/ Move the core lookup logic from TMPFS to libfs.  
2742 5983 d 22 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 5989 d 22 h jermar /trunk/uspace/srv/vfs/ Initialize the VFS node properly.  
2739 5989 d 22 h jermar /trunk/uspace/srv/fs/tmpfs/ Remove duplicate initialization.  
2736 5992 d 0 h jermar /trunk/uspace/srv/fs/tmpfs/ Unlink a TMPFS node more thoroughly.  
2735 5992 d 4 h jermar /trunk/uspace/ Support for rmdir(), unlink() and the respective VFS operations.  
2734 5992 d 6 h jermar /trunk/uspace/ Support for close().  
2733 5992 d 6 h jermar /trunk/uspace/ Add TMPFS support for destroying leaf links in the file system namespace.  
2732 5992 d 6 h jermar /trunk/uspace/srv/fs/tmpfs/ When freeing up a TMPFS node, it should also be removed from the dentries hash table.  
2731 5992 d 7 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 5993 d 9 h jermar /trunk/uspace/srv/ Introduce the notion of VFS node link counts.  
2728 5997 d 22 h jermar /trunk/uspace/srv/fs/tmpfs/ Descend vs. descent.  
2711 6013 d 1 h jermar /trunk/uspace/ Remove the debugging hack from tmpfs_init(), which created several files and
directories on the filesystem. TMPFS is now self-sufficient enough to be able
to create its content via the standard VFS interface.
 
2710 6013 d 1 h jermar /trunk/uspace/ VFS_WRITE and tmpfs_write fixes.  
2709 6013 d 4 h jermar /trunk/uspace/srv/vfs/ VFS_OPEN and VFS_WRITE now understand O_APPEND.  
2708 6013 d 4 h jermar /trunk/uspace/ VFS_OPEN now understands O_CREAT and O_EXCL.  
2707 6013 d 5 h jermar /trunk/uspace/ Support for mkdir().  
2706 6013 d 10 h jermar /trunk/uspace/srv/fs/tmpfs/ Move handling of the miss on excessive components out of the main loop in
tmpfs_lookup.
 
2705 6013 d 22 h jermar /trunk/uspace/ More elegant, flexible and complete version of tmpfs_lookup.  
2704 6014 d 8 h jermar /trunk/uspace/srv/vfs/ Additional VFS lookup flags.  
2700 6021 d 7 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).
 
2699 6021 d 21 h jermar /trunk/uspace/ Finish implementation of readdir(). Functions from this family are implemented
via using file descriptors for directories. For example, readdir() is
implemented as read() from an open directory. Of course, FS implementations
must understand that they are asked to read a directory and behave accordingly.
 
2698 6022 d 2 h jermar /trunk/uspace/srv/vfs/ Small fix for VFS_TRUNCATE. Move lookup and registration code to separate
modules.
 
2693 6027 d 7 h jermar /trunk/uspace/ Add ftruncate() and support for VFS_TRUNCATE to VFS and TMPFS.  
2691 6031 d 1 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 6031 d 22 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 6031 d 23 h jermar /trunk/uspace/srv/vfs/ Merge all VFS operations into one file.  
2688 6032 d 0 h jermar /trunk/uspace/ Make uspace rwlock API naming conventions consistent with kernel rwlock API.  
2687 6032 d 0 h jermar /trunk/uspace/srv/ Management of the cached VFS node size.  
2686 6032 d 1 h jermar /trunk/uspace/srv/fs/tmpfs/ Previous commit was toxic. When emulating gaps, zero out the reallocated buffer, not the original one.  
2685 6032 d 1 h jermar /trunk/uspace/srv/fs/tmpfs/ TMPFS must handle file gaps.  
2684 6034 d 1 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 6034 d 4 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 6034 d 6 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 6034 d 7 h jermar /trunk/uspace/ Turn the namespace futex into rwlock.  
2680 6034 d 8 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.