| commit | 1f2f38d89d1eced2079189cd880eeacee378370a | |
| author | Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com> | |
| Tue, 15 Dec 2009 02:00:31 +0000 (14 18:00 -0800) | ||
| committer | Linus Torvalds <torvalds@linux-foundation.org> | |
| Tue, 15 Dec 2009 16:53:27 +0000 (15 08:53 -0800) | ||
| tree | 143d4219d4249591ef1e74688673f9b78ce06aa7 | treesnapshot (tar.gz zip) |
| parent | 4ae717da8d18839487485f6ae608b8542790fdd3 | commitdiff |
drivers/char/misc.c: use bitmap/bitops functions for dynamic minor number allocation
Use DECLARE_BITMAP(), find_first_zero_bit(), set_bit() and clear_bit()
instead of rewriting code to do it with the minor number dynamic
allocation bitmap.
We need to invert the bit position to keep the code behaviour of using the
last minor numbers first, since we don't have a find_last_zero_bit.
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Use DECLARE_BITMAP(), find_first_zero_bit(), set_bit() and clear_bit()
instead of rewriting code to do it with the minor number dynamic
allocation bitmap.
We need to invert the bit position to keep the code behaviour of using the
last minor numbers first, since we don't have a find_last_zero_bit.
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| drivers/char/misc.c | diffblobblamehistory |