linux/net/socket.c, branch v2.6.25

[DLCI]: Fix tiny race between module unload and sock_ioctl.

2008-03-21T22:58:52Z

This is a narrow pedantry :) but the dlci_ioctl_hook check and call should not be parted with the mutex lock. Signed-off-by: Pavel Emelyanov Signed-off-by: David S. Miller

[NET]: Make sure sockets implement splice_read

2008-02-15T10:35:45Z

Fixes a segmentation fault when trying to splice from a non-TCP socket. Signed-off-by: Rémi Denis-Courmont Signed-off-by: David S. Miller

[NET] sysctl: make sysctl_somaxconn per-namespace

2008-01-28T22:56:57Z

Just move the variable on the struct net and adjust its usage. Others sysctls from sys.net.core table are more difficult to virtualize (i.e. make them per-namespace), but I'll look at them as well a bit later. Signed-off-by: Pavel Emelyanov Signed-off-by: David S. Miller

[NET]: Name magic constants in sock_wake_async()

2008-01-28T22:55:03Z

The sock_wake_async() performs a bit different actions depending on "how" argument. Unfortunately this argument ony has numerical magic values. I propose to give names to their constants to help people reading this function callers understand what's going on without looking into this function all the time. I suppose this is 2.6.25 material, but if it's not (or the naming seems poor/bad/awful), I can rework it against the current net-2.6 tree. Signed-off-by: Pavel Emelyanov Signed-off-by: Herbert Xu Signed-off-by: David S. Miller

[NET]: Use sockfd_lookup_light in the rest of the net/socket.c

2008-01-28T22:54:00Z

Some time ago a sockfd_lookup_light was introduced and most of the socket.c file was patched to use it. However two routines were left - sys_sendto and sys_recvfrom. Patch them as well, since this helper does exactly what these two need. Signed-off-by: Pavel Emelyanov Signed-off-by: David S. Miller

[TCP]: Splice receive support.

2008-01-28T22:53:31Z

Support for network splice receive. Signed-off-by: Jens Axboe Signed-off-by: David S. Miller

[NET]: Add the helper kernel_sock_shutdown()

2007-11-13T02:10:39Z

...and fix a couple of bugs in the NBD, CIFS and OCFS2 socket handlers. Looking at the sock->op->shutdown() handlers, it looks as if all of them take a SHUT_RD/SHUT_WR/SHUT_RDWR argument instead of the RCV_SHUTDOWN/SEND_SHUTDOWN arguments. Add a helper, and then define the SHUT_* enum to ensure that kernel users of shutdown() don't get confused. Signed-off-by: Trond Myklebust Acked-by: Mark Fasheh Acked-by: David Howells Signed-off-by: David S. Miller

[NET]: Fix error reporting in sys_socketpair().

2007-10-30T05:37:34Z

If either of the two sock_alloc_fd() calls fail, we forget to update 'err' and thus we'll erroneously return zero in these cases. Based upon a report and patch from Rich Paul, and commentary from Chuck Ebbert. Signed-off-by: David S. Miller

r/o bind mounts: filesystem helpers for custom 'struct file's

2007-10-17T15:43:04Z

Why do we need r/o bind mounts? This feature allows a read-only view into a read-write filesystem. In the process of doing that, it also provides infrastructure for keeping track of the number of writers to any given mount. This has a number of uses. It allows chroots to have parts of filesystems writable. It will be useful for containers in the future because users may have root inside a container, but should not be allowed to write to somefilesystems. This also replaces patches that vserver has had out of the tree for several years. It allows security enhancement by making sure that parts of your filesystem read-only (such as when you don't trust your FTP server), when you don't want to have entire new filesystems mounted, or when you want atime selectively updated. I've been using the following script to test that the feature is working as desired. It takes a directory and makes a regular bind and a r/o bind mount of it. It then performs some normal filesystem operations on the three directories, including ones that are expected to fail, like creating a file on the r/o mount. This patch: Some filesystems forego the vfs and may_open() and create their own 'struct file's. This patch creates a couple of helper functions which can be used by these filesystems, and will provide a unified place which the r/o bind mount code may patch. Also, rename an existing, static-scope init_file() to a less generic name. Signed-off-by: Dave Hansen Cc: Christoph Hellwig Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

Slab API: remove useless ctor parameter and reorder parameters

2007-10-17T15:42:45Z

Slab constructors currently have a flags parameter that is never used. And the order of the arguments is opposite to other slab functions. The object pointer is placed before the kmem_cache pointer. Convert ctor(void *object, struct kmem_cache *s, unsigned long flags) to ctor(struct kmem_cache *s, void *object) throughout the kernel [akpm@linux-foundation.org: coupla fixes] Signed-off-by: Christoph Lameter Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds