linux/fs/char_dev.c, branch v2.6.23

unregister_chrdev() return void

2007-07-19T17:04:43Z

unregister_chrdev() does not return meaningful value. This patch makes it return void like most unregister_* functions. Signed-off-by: Akinobu Mita Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] remove protection of LANANA-reserved majors

2007-04-05T04:12:47Z

Revert all this. It can cause device-mapper to receive a different major from earlier kernels and it turns out that the Amanda backup program (via GNU tar, apparently) checks major numbers on files when performing incremental backups. Which is a bit broken of Amanda (or tar), but this feature isn't important enough to justify the churn. Cc: Ingo Molnar Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] rework reserved major handling

2007-02-21T01:10:13Z

Several people have reported failures in dynamic major device number handling due to the recent changes in there to avoid handing out the local/experimental majors. Rolf reports that this is due to a gcc-4.1.0 bug. The patch refactors that code a lot in an attempt to provoke the compiler into behaving. Cc: Rolf Eike Beer Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] register_chrdev_region() don't hand out the LOCAL/EXPERIMENTAL majors

2007-02-12T17:48:27Z

As pointed out in http://bugzilla.kernel.org/show_bug.cgi?id=7922, dynamic chardev major allocation can hand out majors which LANANA has defined as being for local/experimental use. Cc: Torben Mathiasen Cc: Greg KH Cc: Al Viro Cc: Tomas Klas Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] BLOCK: Move extern declarations out of fs/*.c into header files [try #6]

2006-09-30T18:52:18Z

Create a new header file, fs/internal.h, for common definitions local to the sources in the fs/ directory. Move extern definitions that should be in header files from fs/*.c to fs/internal.h or other main header files where they span directories. Signed-Off-By: David Howells Signed-off-by: Jens Axboe

[PATCH] cdev documentation

2006-09-29T16:18:16Z

Add some documentation comments for the cdev interface. Signed-off-by: Jonathan Corbet Cc: Rolf Eike Beer Acked-by: "Randy.Dunlap" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] Chardev checking of overlapping ranges

2006-09-29T16:18:12Z

The code in __register_chrdev_region checks that if the driver wishing to register has the same major as an existing driver the new minor range is strictly less than the existing minor range. However, it does not also check that the new minor range is strictly greater than the existing minor range. That is, if driver X has registered with major=x and minor=0-3, __register_chrdev_region will allow driver Y to register with major=x and minor=1-4. Signed-off-by: Amos Waterland Cc: Linas Vepstas Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] NOMMU: Set BDI capabilities for /dev/mem and /dev/kmem

2006-09-27T15:26:14Z

Set the backing device info capabilities for /dev/mem and /dev/kmem to permit direct sharing under no-MMU conditions and full mapping capabilities under MMU conditions. Make the BDI used by these available to all directly mappable character devices. Also comment the capabilities for /dev/zero. [akpm@osdl.org: ifdef reductions] Signed-off-by: David Howells Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] add function documentation for register_chrdev()

2006-07-15T04:53:54Z

Documentation for register_chrdev() was missing completely. [akpm@osdl.org: kerneldocification] Signed-off-by: Rolf Eike Beer Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

Remove obsolete #include

2006-06-30T17:25:36Z

Signed-off-by: Jörn Engel Signed-off-by: Adrian Bunk