user/sven/linux.git/include/linux/kdev_t.h, branch v4.9.266

kdev_t: always inline major/minor helper functions

2021-01-09T12:35:50Z

commit aa8c7db494d0a83ecae583aa193f1134ef25d506 upstream. Silly GCC doesn't always inline these trivial functions. Fixes the following warning: arch/x86/kernel/sys_ia32.o: warning: objtool: cp_stat64()+0xd8: call to new_encode_dev() with UACCESS enabled Link: https://lkml.kernel.org/r/984353b44a4484d86ba9f73884b7306232e25e30.1608737428.git.jpoimboe@redhat.com Signed-off-by: Josh Poimboeuf Reported-by: Randy Dunlap Acked-by: Randy Dunlap [build-tested] Cc: Peter Zijlstra Cc: Greg Kroah-Hartman Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds Signed-off-by: Greg Kroah-Hartman

include/linux/kdev_t.h: remove new_valid_dev()

2016-01-16T19:17:23Z

As all new_valid_dev() checks have been removed it's time to drop new_valid_dev() itself. No functional change. Signed-off-by: Yaowei Bai Cc: Al Viro Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

include/linux/kdev_t.h: old/new_valid_dev() can return bool

2015-11-09T23:11:24Z

Make old/new_valid_dev return bool due to these two particular functions only using either one or zero as their return value. No functional change. Signed-off-by: Yaowei Bai Cc: Al Viro Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

include/linux/kdev_t.h: remove unused huge_valid_dev()

2015-11-09T23:11:24Z

There's no user of huge_valid_dev() any more, so remove it. No functional change. Signed-off-by: Yaowei Bai Cc: Al Viro Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

UAPI: (Scripted) Disintegrate include/linux

2012-10-13T09:46:48Z

Signed-off-by: David Howells Acked-by: Arnd Bergmann Acked-by: Thomas Gleixner Acked-by: Michael Kerrisk Acked-by: Paul E. McKenney Acked-by: Dave Jones

[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] 32-bit dev_t: internal use

2003-09-23T05:52:17Z

Starting the conversion: * internal dev_t made 32bit. * new helpers - new_encode_dev(), new_decode_dev(), huge_encode_dev(), huge_decode_dev(), new_valid_dev(). They do encoding/decoding of 32bit and 64bit values; for now huge_... are aliases for new_... and new_valid_dev() is always true. We do 12:20 for 32bit; representation is compatible with 16bit one - we have major in bits 19--8 and minor in 31--20,7--0. That's what the userland sees; internally we have (major << 20)|minor, of course. * MKDEV(), MAJOR() and MINOR() updated. * several places used to handle Missed'em'V dev_t (14:18 split) manually; that stuff had been taken into common helpers. Now we can start replacing old_... with new_... and huge_..., depending on the width available. MKDEV() callers should (for now) make sure that major and minor are within 12:20. That's what the next chunk will do.

[PATCH] large dev_t - second series (8/15)

2003-09-05T03:54:18Z

kdev_t, to_kdev_t(), etc. are gone - there is no more objects of that type and no remaining callers of these functions.

[PATCH] large dev_t - second series (6/15)

2003-09-05T03:53:56Z

tty redirect handling sanitized. Such ttys (/dev/tty and /dev/console) get a different file_operations; its ->write() handles redirects; checks for file->f_op == &tty_fops updated, checks for major:minor being that of a redirector replaced with check for ->f_op->write value. Piece of code in tty_io.c that had been #if 0 since 0.99 had been finally put out of its misery. kdev_val() is gone.