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Rev Age Author Path Log message Diff
3215 5837 d 9 h jermar /trunk/uspace/srv/vfs/ Instead of aborting or crashing, return EBADF when an invalid file descriptor
is passed to vfs_close().
 
3201 5841 d 8 h svoboda /trunk/uspace/ Do not disassemble needlessly.  
3109 5868 d 6 h jermar /trunk/uspace/srv/ Split the 'mount another filesystem here' and 'you are being mounted and the
device is this' mount semantics. Add VFS_MOUNTED VFS operation that corresponds
to the latter and reserve VFS_MOUNT only for the former. Because of this
change, the VFS server does not maintain the mr_node VFS node for the name space
root anymore and the VFS_LOOKUP operation is now not meant to be used on
unmounted file system, not even for looking up the root node of unmounted file
systems. In the light of these changes, TMPFS is now initialized from
tmpfs_mounted() function.
 
3079 5871 d 7 h decky /trunk/uspace/srv/vfs/ disable extensive debugging output  
2958 5887 d 0 h jermar /trunk/uspace/srv/ Make VFS_MOUNT call even when mounting the root file system.  
2957 5887 d 1 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 5927 d 20 h jermar /trunk/uspace/srv/vfs/ Update comment.  
2788 5938 d 14 h jermar /trunk/uspace/ Return EBUSY if trying to mount something over an already mounted root FS.
(Contributed by Tim Post)
 
2770 5955 d 1 h jermar /trunk/uspace/ Introduce fs_handle_t, dev_handle_t and fs_index_t.  
2769 5956 d 0 h jermar /trunk/uspace/srv/vfs/ VFS index needs to be treated as uint64_t.  
2768 5956 d 2 h jermar /trunk/uspace/srv/vfs/ Fibril serialization is required when two file systems register contemporarily.  
2766 5957 d 2 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 5957 d 4 h jermar /trunk/uspace/ Support for rename().  
2753 5964 d 0 h jermar /trunk/uspace/ Move canonify() to libc so that it can be used also on the libc side.  
2752 5964 d 7 h jermar /trunk/uspace/srv/vfs/ Make VFS canonify path names on lookup.  
2751 5965 d 5 h jermar /trunk/uspace/ Add canonify() for file system path canonization.
Not yet used by VFS.
 
2749 5967 d 0 h jermar /trunk/uspace/srv/vfs/ contents_rwlock should not be acquired as a futex but rather as a rwlock.  
2748 5967 d 0 h jermar /trunk/uspace/srv/vfs/ Support for O_TRUNC.  
2742 5969 d 23 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 5976 d 0 h jermar /trunk/uspace/srv/vfs/ Initialize the VFS node properly.  
2735 5978 d 5 h jermar /trunk/uspace/ Support for rmdir(), unlink() and the respective VFS operations.  
2734 5978 d 7 h jermar /trunk/uspace/ Support for close().  
2731 5978 d 8 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 5979 d 10 h jermar /trunk/uspace/srv/ Introduce the notion of VFS node link counts.  
2710 5999 d 3 h jermar /trunk/uspace/ VFS_WRITE and tmpfs_write fixes.  
2709 5999 d 5 h jermar /trunk/uspace/srv/vfs/ VFS_OPEN and VFS_WRITE now understand O_APPEND.  
2708 5999 d 5 h jermar /trunk/uspace/ VFS_OPEN now understands O_CREAT and O_EXCL.  
2707 5999 d 7 h jermar /trunk/uspace/ Support for mkdir().  
2704 6000 d 10 h jermar /trunk/uspace/srv/vfs/ Additional VFS lookup flags.  
2700 6007 d 8 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 6008 d 4 h jermar /trunk/uspace/srv/vfs/ Small fix for VFS_TRUNCATE. Move lookup and registration code to separate
modules.
 
2693 6013 d 8 h jermar /trunk/uspace/ Add ftruncate() and support for VFS_TRUNCATE to VFS and TMPFS.  
2691 6017 d 2 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 6018 d 0 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 6018 d 1 h jermar /trunk/uspace/srv/vfs/ Merge all VFS operations into one file.  
2688 6018 d 1 h jermar /trunk/uspace/ Make uspace rwlock API naming conventions consistent with kernel rwlock API.  
2687 6018 d 1 h jermar /trunk/uspace/srv/ Management of the cached VFS node size.  
2684 6020 d 2 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 6020 d 5 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 6020 d 8 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.