linux.git/fs/proc/base.c, branch v2.6.23

Fix leaks on /proc/{*/sched,sched_debug,timer_list,timer_stats}

2007-07-31T22:39:40+00:00

On every open/close one struct seq_operations leaks.
Kudos to /proc/slab_allocators.

Signed-off-by: Alexey Dobriyan 
Acked-by: Ingo Molnar 
Cc: 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

coredump masking: add an interface for core dump filter

2007-07-19T17:04:47+00:00

This patch adds an interface to set/reset flags which determines each memory
segment should be dumped or not when a core file is generated.

/proc//coredump_filter file is provided to access the flags.  You can
change the flag status for a particular process by writing to or reading from
the file.

The flag status is inherited to the child process when it is created.

Signed-off-by: Hidehiro Kawai 
Cc: Alan Cox 
Cc: David Howells 
Cc: Hugh Dickins 
Cc: Nick Piggin 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

coredump masking: reimplementation of dumpable using two flags

2007-07-19T17:04:46+00:00

This patch changes mm_struct.dumpable to a pair of bit flags.

set_dumpable() converts three-value dumpable to two flags and stores it into
lower two bits of mm_struct.flags instead of mm_struct.dumpable.
get_dumpable() behaves in the opposite way.

[akpm@linux-foundation.org: export set_dumpable]
Signed-off-by: Hidehiro Kawai 
Cc: Alan Cox 
Cc: David Howells 
Cc: Hugh Dickins 
Cc: Nick Piggin 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

kallsyms: make KSYM_NAME_LEN include space for trailing '\0'

2007-07-17T17:23:03+00:00

KSYM_NAME_LEN is peculiar in that it does not include the space for the
trailing '\0', forcing all users to use KSYM_NAME_LEN + 1 when allocating
buffer.  This is nonsense and error-prone.  Moreover, when the caller
forgets that it's very likely to subtly bite back by corrupting the stack
because the last position of the buffer is always cleared to zero.

This patch increments KSYM_NAME_LEN by one and updates code accordingly.

* off-by-one bug in asm-powerpc/kprobes.h::kprobe_lookup_name() macro
  is fixed.

* Where MODULE_NAME_LEN and KSYM_NAME_LEN were used together,
  MODULE_NAME_LEN was treated as if it didn't include space for the
  trailing '\0'.  Fix it.

Signed-off-by: Tejun Heo 
Acked-by: Paulo Marques 
Cc: Benjamin Herrenschmidt 
Cc: Paul Mackerras 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

move seccomp from /proc to a prctl

2007-07-16T16:05:50+00:00

This reduces the memory footprint and it enforces that only the current
task can enable seccomp on itself (this is a requirement for a
strightforward [modulo preempt ;) ] TIF_NOTSC implementation).

Signed-off-by: Andrea Arcangeli 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

/proc/*/environ: wrong placing of ptrace_may_attach() check

2007-07-16T16:05:44+00:00

It's a bit dopey-looking and can permit a task to cause a pagefault in an mm
which it doesn't have permission to read from.

Signed-off-by: Alexey Dobriyan 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

sched: scheduler debugging, core

2007-07-09T16:52:00+00:00

scheduler debugging core: implement /proc/sched_debug and
/proc//sched files for scheduler debugging.

Signed-off-by: Ingo Molnar

sched: update delay-accounting to use CFS's precise stats

2007-07-09T16:52:00+00:00

update delay-accounting to use CFS's precise stats.

Signed-off-by: Ingo Molnar

smaps: only define clear_refs for CONFIG_MMU

2007-05-09T03:41:14+00:00

/proc/pid/clear_refs is only defined in the CONFIG_MMU case, so make sure we
don't have any references to clear_refs_smap() in generic procfs code.

Signed-off-by: David Rientjes 
Signed-off-by: David Howells 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

procfs: use simple_read_from_buffer()

2007-05-08T18:15:14+00:00

Cleanup using simple_read_from_buffer() in procfs.

Signed-off-by: Akinobu Mita 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds