linux-toradex.git/fs/9p, branch v2.6.16.21

[PATCH] v9fs: assign dentry ops to negative dentries

2006-03-28T06:47:30+00:00

If a file is not found in v9fs_vfs_lookup, the function creates negative
dentry, but doesn't assign any dentry ops.  This leaves the negative entry
in the cache (there is no d_delete to mark it for removal).  If the file is
created outside of the mounted v9fs filesystem, the file shows up in the
directory with weird permissions.

This patch assigns the default v9fs dentry ops to the negative dentry.

Signed-off-by: Latchesar Ionkov 
Signed-off-by: Eric Van Hensbergen 
Signed-off-by: Andrew Morton 
Signed-off-by: Chris Wright 
Signed-off-by: Greg Kroah-Hartman

[PATCH] v9fs: fix overzealous dropping of dentry which breaks dcache

2006-03-17T15:51:25+00:00

There is a d_drop in dir_release which caused problems as it invalidates
dcache entries too soon.  This was likely a part of the wierd cwd behavior
folks were seeing.

Signed-off-by: Eric Van Hensbergen 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] v9fs: fix for access to unitialized variables or freed memory

2006-03-08T22:14:02+00:00

Miscellaneous fixes related to accessing uninitialized variables or memory
that was already freed.

Signed-off-by: Latchesar Ionkov 
Cc: Eric Van Hensbergen 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] v9fs: simplify fid mapping

2006-03-02T16:33:07+00:00

v9fs has been plagued by an over-complicated approach trying to map Linux
dentry semantics to Plan 9 fid semantics.  Our previous approach called for
aggressive flushing of the dcache resulting in several problems (including
wierd cwd behavior when running /bin/pwd).

This patch dramatically simplifies our handling of this fid management.  Fids
will not be clunked as promptly, but the new approach is more functionally
correct.  We now clunk un-open fids only when their dentry ref_count reaches 0
(and d_delete is called).

Another simplification is we no longer seek to match fids to the process-id or
uid of the action initiator.  The uid-matching will need to be revisited when
we fix the security model.

Signed-off-by: Eric Van Hensbergen 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] v9fs: fix bug in atomic create open fix

2006-03-02T16:33:07+00:00

Lucho's atomic create+open fix had a bug in the super block initialization
causing all mounts to fail.  He was freeing an fcall too early.  This patch
fixes that oversight.

Signed-off-by: Eric Van Hensbergen 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] v9fs: fix atomic create open

2006-03-02T16:33:07+00:00

In order to assure atomic create+open v9fs stores the open fid produced by
v9fs_vfs_create in the dentry, from where v9fs_file_open retrieves it and
associates it with the open file.

This patch modifies v9fs to use nameidata.intent.open values to do the atomic
create+open.

Signed-off-by: Latchesar Ionkov 
Signed-off-by: Eric Van Hensbergen 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] v9fs: update documentation and fix debug flag

2006-02-21T04:00:11+00:00

Minor updates to the documentation to bring them into sync with current
websites and available features.  The debug flag was switched back to hex
to match the documentation.

Signed-off-by: Eric Van Hensbergen 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] v9fs: fix corner cases when flushing request

2006-02-03T16:32:06+00:00

When v9fs_mux_rpc sends a 9P message, it may be put in the queue of unsent
request.  If the user process receives a signal, v9fs_mux_rpc sets the
request error to ERREQFLUSH and assigns NULL to request's send message.  If
the message was still in the unsent queue, v9fs_write_work would produce an
oops while processing it.

The patch makes sure that requests that are being flushed are moved to the
pending requests queue safely.

If a request is being flushed, don't remove it from the list of pending
requests even if it receives a reply before the flush is acknoledged.  The
request will be removed during from the Rflush handler (v9fs_mux_flush_cb).

Signed-off-by: Latchesar Ionkov 
Cc: Eric Van Hensbergen 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] v9fs: v9fs_put_str fix

2006-02-03T16:32:06+00:00

v9fs_put_str used to store pointer to the source string, instead of the
cbuf copy.  This patch corrects it.

Signed-off-by: Latchesar Ionkov 
Cc: Eric Van Hensbergen 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] v9fs: symlink support fixes

2006-02-03T16:32:06+00:00

Two symlink fixes, v9fs_readlink didn't copy the last character of the
symlink name, v9fs_vfs_follow_link incorrectly called strlen of newly
allocated buffer instead of PATH_MAX.

Signed-off-by: Latchesar Ionkov 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds