linux-toradex.git/include/linux/seq_file.h, branch tegra-10.9.9

vfs: seq_file: add helpers for data filling

2009-09-24T11:47:35+00:00

Add two helpers that allow access to the seq_file's own buffer, but
hide the internal details of seq_files.

This allows easier implementation of special purpose filling
functions.  It also cleans up some existing functions which duplicated
the seq_file logic.

Make these inline functions in seq_file.h, as suggested by Al.

Signed-off-by: Miklos Szeredi 
Acked-by: Hugh Dickins 
Signed-off-by: Al Viro

seq_file: add function to write binary data

2009-06-18T20:03:57+00:00

seq_write() can be used to construct seq_files containing arbitrary data.
Required by the gcov-profiling interface to synthesize binary profiling
data files.

Signed-off-by: Peter Oberparleiter 
Cc: Andi Kleen 
Cc: Huang Ying 
Cc: Li Wei 
Cc: Michael Ellerman 
Cc: Ingo Molnar 
Cc: Heiko Carstens 
Cc: Martin Schwidefsky 
Cc: Rusty Russell 
Cc: WANG Cong 
Cc: Sam Ravnborg 
Cc: Jeff Dike 
Cc: Al Viro 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

cpumask: fix seq_bitmap_*() functions.

2009-03-30T11:35:11+00:00

1) seq_bitmap_list() should take a const.
2) All the seq_bitmap should use cpumask_bits().

Signed-off-by: Rusty Russell

seq_file: properly cope with pread

2009-02-18T23:37:53+00:00

Currently seq_read assumes that the offset passed to it is always the
offset it passed to user space.  In the case pread this assumption is
broken and we do the wrong thing when presented with pread.

To solve this I introduce an offset cache inside of struct seq_file so we
know where our logical file position is.  Then in seq_read if we try to
read from another offset we reset our data structures and attempt to go to
the offset user space wanted.

[akpm@linux-foundation.org: restore FMODE_PWRITE]
[pjt@google.com: seq_open needs its fmode opened up to take advantage of this]
Signed-off-by: Eric Biederman 
Cc: Alexey Dobriyan 
Cc: Al Viro 
Cc: Paul Turner 
Cc: 		[2.6.25.x, 2.6.26.x, 2.6.27.x, 2.6.28.x]
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

cpumask: Use nr_cpu_ids in seq_cpumask

2008-12-29T22:35:19+00:00

Impact: cleanup, futureproof

nr_cpu_ids is the (badly named) runtime limit on possible CPU numbers;
ie. the variable version of NR_CPUS.

With the new cpumask operators, only bits less than this are defined.
So we should use it everywhere, rather than NR_CPUS.  Eventually this
will make it possible to allocate cpumasks of the minimal length at runtime.

Signed-off-by: Rusty Russell 
Signed-off-by: Mike Travis 
Acked-by: Ingo Molnar

bitmap: fix seq_bitmap and seq_cpumask to take const pointer

2008-12-29T22:35:14+00:00

Impact: cleanup

seq_bitmap just calls bitmap_scnprintf on the bits: that arg can be const.
Similarly, seq_cpumask just calls seq_bitmap.

Signed-off-by: Rusty Russell

vfs, seqfile: make mangle_path() global

2008-11-23T08:45:39+00:00

Impact: expose new VFS API

make mangle_path() available, as per the suggestions of Christoph Hellwig
and Al Viro:

  http://lkml.org/lkml/2008/11/4/338

Signed-off-by: Török Edwin 
Signed-off-by: Ingo Molnar

seq_file: add seq_cpumask_list(), seq_nodemask_list()

2008-10-20T15:52:39+00:00

seq_cpumask_list(), seq_nodemask_list() are very like seq_cpumask(),
seq_nodemask(), but they print human readable string.

Signed-off-by: Lai Jiangshan 
Cc: Alexey Dobriyan 
Cc: Paul Menage 
Cc: Paul Jackson 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

seq_file: add seq_cpumask(), seq_nodemask()

2008-08-12T23:07:30+00:00

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 
Reviewed-by: Paul Jackson 
Cc: Mike Travis 
Cc: Al Viro 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Remove "#ifdef KERNEL" checks from unexported headers

2008-04-30T15:29:54+00:00

Remove the "#ifdef __KERNEL__" tests from unexported header files in
linux/include whose entire contents are wrapped in that preprocessor
test.

Signed-off-by: Robert P. J. Day 
Cc: David Woodhouse 
Cc: Sam Ravnborg 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds