Alexey Dobriyan 50ac2d694f seq_file: add seq_cpumask(), seq_nodemask()
Short enough reads from /proc/irq/*/smp_affinity return -EINVAL for no
good reason.

This became noticed with NR_CPUS=4096 patches, when length of printed
representation of cpumask becase 1152, but cat(1) continued to read with
1024-byte chunks.  bitmap_scnprintf() in good faith fills buffer, returns
1023, check returns -EINVAL.

Fix it by switching to seq_file, so handler will just fill buffer and
doesn't care about offsets, length, filling EOF and all this crap.

For that add seq_bitmap(), and wrappers around it -- seq_cpumask() and
seq_nodemask().

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Reviewed-by: Paul Jackson <pj@sgi.com>
Cc: Mike Travis <travis@sgi.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-12 16:07:30 -07:00
..
2008-07-25 10:53:26 -07:00
2008-02-03 17:48:52 +02:00
2005-10-18 08:26:15 -07:00
2007-05-11 05:38:25 -04:00
2008-07-24 10:47:33 -07:00
2008-06-06 11:29:10 -07:00
2007-07-16 09:05:50 -07:00
2007-07-17 10:23:04 -07:00
2006-06-25 10:01:20 -07:00
2008-02-03 17:48:52 +02:00
2005-04-16 15:20:36 -07:00
2006-06-25 10:01:20 -07:00
2007-05-10 18:24:13 +02:00
2005-04-16 15:20:36 -07:00
2008-07-26 12:00:07 -07:00
2005-04-16 15:20:36 -07:00
2008-04-29 08:11:16 -07:00
2005-04-16 15:20:36 -07:00
2005-04-16 15:20:36 -07:00
2008-05-14 19:11:14 -07:00
2007-10-19 11:53:41 -07:00
2006-06-20 20:24:58 -07:00
2008-07-26 12:00:07 -07:00
2006-10-06 08:53:40 -07:00
2008-07-26 12:00:07 -07:00
2008-07-25 10:53:29 -07:00
2008-01-24 20:40:05 -08:00
2008-05-18 23:35:43 -05:00
2008-07-26 12:00:10 -07:00
2008-07-26 12:00:07 -07:00
2007-10-19 11:53:41 -07:00
2005-04-16 15:20:36 -07:00
2008-07-30 16:29:19 -07:00
2008-01-30 13:33:00 +01:00
2008-07-26 12:00:10 -07:00
2007-10-17 08:42:52 -07:00
2008-07-26 12:00:10 -07:00
2008-07-22 19:24:31 +10:00