linux.git/fs/fuse/dir.c, branch v2.6.24

fuse: fix attribute caching after rename

2007-11-29T17:24:54+00:00

Invalidate attributes on rename, since some filesystems may update
st_ctime.  Reported by Szabolcs Szakacsits

Signed-off-by: Miklos Szeredi 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

fuse: pass open flags to read and write

2007-11-29T17:24:54+00:00

Some open flags (O_APPEND, O_DIRECT) can be changed with fcntl(F_SETFL, ...)
after open, but fuse currently only sends the flags to userspace in open.

To make it possible to correcly handle changing flags, send the
current value to userspace in each read and write.

Signed-off-by: Miklos Szeredi 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

fuse: cleanup: add fuse_get_attr_version()

2007-11-29T17:24:54+00:00

Extract repeated code into helper function, as suggested by Akpm.

Signed-off-by: Miklos Szeredi 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

fuse: fix reading past EOF

2007-11-29T17:24:54+00:00

Currently reading a fuse file will stop at cached i_size and return
EOF, even though the file might have grown since the attributes were
last updated.

So detect if trying to read past EOF, and refresh the attributes
before continuing with the read.

Thanks to mpb for the report.

Signed-off-by: Miklos Szeredi 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

fuse: add blksize field to fuse_attr

2007-10-18T21:37:31+00:00

There are cases when the filesystem will be passed the buffer from a single
read or write call, namely:

 1) in 'direct-io' mode (not O_DIRECT), read/write requests don't go
    through the page cache, but go directly to the userspace fs

 2) currently buffered writes are done with single page requests, but
    if Nick's ->perform_write() patch goes it, it will be possible to
    do larger write requests.  But only if the original write() was
    also bigger than a page.

In these cases the filesystem might want to give a hint to the app
about the optimal I/O size.

Allow the userspace filesystem to supply a blksize value to be returned by
stat() and friends.  If the field is zero, it defaults to the old
PAGE_CACHE_SIZE value.

Signed-off-by: Miklos Szeredi 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

fuse: add support for mandatory locking

2007-10-18T21:37:31+00:00

For mandatory locking the userspace filesystem needs to know the lock
ownership for read, write and truncate operations.

This patch adds the necessary fields to the protocol.

Signed-off-by: Miklos Szeredi 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

fuse: add atomic open+truncate support

2007-10-18T21:37:31+00:00

This patch allows fuse filesystems to implement open(..., O_TRUNC) as a single
request, instead of separate truncate and open requests.

Signed-off-by: Miklos Szeredi 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

fuse: improve utimes support

2007-10-18T21:37:30+00:00

Add two new flags for setattr: FATTR_ATIME_NOW and FATTR_MTIME_NOW.  These
mean, that atime or mtime should be changed to the current time.

Also it is now possible to update atime or mtime individually, not just
together.

Signed-off-by: Miklos Szeredi 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

fuse: clean up open file passing in setattr

2007-10-18T21:37:30+00:00

Clean up supplying open file to the setattr operation.  In addition to being a
cleanup it prepares for the changes in the way the open file is passed to the
setattr method.

Signed-off-by: Miklos Szeredi 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

fuse: add file handle to getattr operation

2007-10-18T21:37:30+00:00

Add necessary protocol changes for supplying a file handle with the getattr
operation.  Step the API version to 7.9.

This patch doesn't actually supply the file handle, because that needs some
kind of VFS support, which we haven't yet been able to agree upon.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Miklos Szeredi 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds