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authorAlexey Dobriyan <adobriyan@gmail.com>2008-08-12 18:09:02 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-08-12 19:07:30 -0400
commit50ac2d694f2dd1658341cf97bcf2ffb836d772cb (patch)
treec4466ecb7c5211ee9423380783f00027411d5d5a /include/linux/devpts_fs.h
parentdd763460eb628b57814251a15a39f8d75c044d76 (diff)
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>
Diffstat (limited to 'include/linux/devpts_fs.h')
0 files changed, 0 insertions, 0 deletions