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Rev Age Author Path Log message Diff
4445 5512 d 0 h decky /trunk/uspace/srv/vfs/ revert commit 4443 and implement a much finer solution as suggested by Jakub Jermar in commit 4444  
4443 5514 d 23 h decky /trunk/uspace/srv/vfs/ serialization of VFS_OPEN implementation to avoid lockup by concurrent open() operations from multiple tasks  
4437 5516 d 7 h jermar /trunk/uspace/srv/vfs/ Fix function definition.  
4431 5521 d 0 h jermar /trunk/uspace/srv/vfs/ Hold the namespace rwlock during the entire operation of vfs_mount_internal().
Get rid of rootfs futex, which is not needed anymore.
Do not instantiate VFS node for the mounted root if the mount failed.
 
4427 5522 d 21 h jermar /trunk/uspace/srv/vfs/ Fix rename() on a non-root file system.  
4409 5524 d 19 h jermar /trunk/uspace/ Rudimentary support for non-root mounts.  
4368 5535 d 8 h jermar /trunk/uspace/ Lookup a node's parent lexically rather than using the broken L_PARENT flag of
VFS_LOOKUP.
 
4366 5535 d 20 h jermar /trunk/uspace/srv/vfs/ Allow rename("a", "aa");  
4305 5556 d 1 h jermar /trunk/uspace/ Support mount options.
Let tmpfs decide whether to start empty or restored a TMPFS dump based on the mount option.
 
4302 5556 d 3 h jermar /trunk/uspace/ Make IPC_M_PING part of the VFS_MOUNT protocol again.  
4301 5556 d 4 h jermar /trunk/uspace/srv/vfs/ Return the actual error code instead of EREFUSED.  
4279 5559 d 22 h svoboda /trunk/uspace/ Nuke strncmp().  
4264 5564 d 19 h svoboda /trunk/uspace/ Nuke strcpy() and strcmp().  
4159 5584 d 20 h jermar /trunk/uspace/srv/vfs/ Just for pro forma, initialize the the link before use.  
4010 5602 d 23 h decky /trunk/uspace/srv/vfs/ support for pending (blocking) mounts (waiting for the presence of the filesystem implementation)
the mount point and filesystem type arguments of VFS_MOUNT were swapped, the IPC_M_PING was eliminated
small cleanups
 
3653 5696 d 1 h jermar /trunk/uspace/srv/vfs/ Hold the namespace_rwlock during readdir().  
3488 5746 d 21 h svoboda /trunk/uspace/ Fix assorted warnings.  
3352 5794 d 21 h jermar /trunk/uspace/srv/ Add reference to the mounted FS root.

This makes it possible to keep the FS root logically unlinked (i.e. lnkcnt == 0)
because it prevents VFS from attempting to destroy it during closedir().
 
3255 5808 d 7 h jermar /trunk/uspace/ Fix the VFS protocol so that the client can determine that VFS_MOUNT failed due
to a request to mount an unregistered file system.
 
3215 5841 d 4 h jermar /trunk/uspace/srv/vfs/ Instead of aborting or crashing, return EBADF when an invalid file descriptor
is passed to vfs_close().
 
3109 5872 d 1 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 5875 d 2 h decky /trunk/uspace/srv/vfs/ disable extensive debugging output  
2958 5890 d 19 h jermar /trunk/uspace/srv/ Make VFS_MOUNT call even when mounting the root file system.  
2957 5890 d 20 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.
 
2788 5942 d 9 h jermar /trunk/uspace/ Return EBUSY if trying to mount something over an already mounted root FS.
(Contributed by Tim Post)
 
2770 5958 d 20 h jermar /trunk/uspace/ Introduce fs_handle_t, dev_handle_t and fs_index_t.  
2766 5960 d 21 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 5960 d 23 h jermar /trunk/uspace/ Support for rename().  
2752 5968 d 2 h jermar /trunk/uspace/srv/vfs/ Make VFS canonify path names on lookup.  
2749 5970 d 19 h jermar /trunk/uspace/srv/vfs/ contents_rwlock should not be acquired as a futex but rather as a rwlock.  
2748 5970 d 19 h jermar /trunk/uspace/srv/vfs/ Support for O_TRUNC.  
2742 5973 d 18 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().
 
2735 5982 d 0 h jermar /trunk/uspace/ Support for rmdir(), unlink() and the respective VFS operations.  
2734 5982 d 2 h jermar /trunk/uspace/ Support for close().  
2710 6002 d 22 h jermar /trunk/uspace/ VFS_WRITE and tmpfs_write fixes.  
2709 6003 d 0 h jermar /trunk/uspace/srv/vfs/ VFS_OPEN and VFS_WRITE now understand O_APPEND.  
2708 6003 d 0 h jermar /trunk/uspace/ VFS_OPEN now understands O_CREAT and O_EXCL.  
2707 6003 d 2 h jermar /trunk/uspace/ Support for mkdir().  
2700 6011 d 3 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 6011 d 23 h jermar /trunk/uspace/srv/vfs/ Small fix for VFS_TRUNCATE. Move lookup and registration code to separate
modules.