linux.git/fs/proc/base.c, branch v2.6.15

[PATCH] make /proc/mounts pollable

2005-11-08T02:18:10+00:00

Signed-off-by: Al Viro 
Signed-off-by: Linus Torvalds

[PATCH] nommu build error fix

2005-10-15T00:10:13+00:00

"proc_smaps_operations" is not defined in case of "CONFIG_MMU=n".

Signed-off-by: Yoshinori Sato 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] proc_task_root_link c99 fix

2005-09-23T05:17:33+00:00

fs/proc/base.c: In function `proc_task_root_link':
fs/proc/base.c:364: warning: ISO C90 forbids mixed declarations and code

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

[PATCH] Fix invisible threads problem

2005-09-21T16:15:34+00:00

When the main thread of a thread group has done pthread_exit() and died,
the other threads are still happily running, but will not be visible
under /proc because their leader is no longer accessible.

This fixes the access control so that we can see the sub-threads again.

Signed-off-by: Sripathi Kodi 
Acked-by: Al Viro 
Signed-off-by: Linus Torvalds

[PATCH] files: lock-free fd look-up

2005-09-09T20:57:55+00:00

With the use of RCU in files structure, the look-up of files using fds can now
be lock-free.  The lookup is protected by rcu_read_lock()/rcu_read_unlock().
This patch changes the readers to use lock-free lookup.

Signed-off-by: Maneesh Soni 
Signed-off-by: Ravikiran Thirumalai 
Signed-off-by: Dipankar Sarma 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] files: break up files struct

2005-09-09T20:57:55+00:00

In order for the RCU to work, the file table array, sets and their sizes must
be updated atomically.  Instead of ensuring this through too many memory
barriers, we put the arrays and their sizes in a separate structure.  This
patch takes the first step of putting the file table elements in a separate
structure fdtable that is embedded withing files_struct.  It also changes all
the users to refer to the file table using files_fdtable() macro.  Subsequent
applciation of RCU becomes easier after this.

Signed-off-by: Dipankar Sarma 
Signed-Off-By: David Howells 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] remove duplicated code from proc and ptrace

2005-09-07T23:57:43+00:00

Extract common code used by ptrace_attach() and may_ptrace_attach()
into a separate function.

Signed-off-by: Miklos Szeredi 
Cc: 
Cc: Christoph Hellwig 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] fix enum pid_directory_inos in proc/base.c

2005-09-07T23:57:43+00:00

This patch fixes wrongly placed elements in the pid_directory_inos
enum.  Also add comment so this mistake is not repeated.

Signed-off-by: Miklos Szeredi 
Cc: 
Cc: Christoph Hellwig 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] use get_fs_struct() in proc

2005-09-07T23:57:43+00:00

This patch cleans up proc_cwd_link() and proc_root_link() by factoring
out common code into get_fs_struct().

Signed-off-by: Miklos Szeredi 
Cc: 
Cc: Christoph Hellwig 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] add /proc/pid/smaps

2005-09-05T07:05:49+00:00

Add a "smaps" entry to /proc/pid: show howmuch memory is resident in each
mapping.

People that want to perform a memory consumption analysing can use it
mainly if someone needs to figure out which libraries can be reduced for
embedded systems.  So the new features are the physical size of shared and
clean [or dirty]; private and clean [or dirty].

Take a look the example below:

# cat /proc/4576/smaps

08048000-080dc000 r-xp /bin/bash
Size:               592 KB
Rss:                500 KB
Shared_Clean:       500 KB
Shared_Dirty:         0 KB
Private_Clean:        0 KB
Private_Dirty:        0 KB
080dc000-080e2000 rw-p /bin/bash
Size:                24 KB
Rss:                 24 KB
Shared_Clean:         0 KB
Shared_Dirty:         0 KB
Private_Clean:        0 KB
Private_Dirty:       24 KB
080e2000-08116000 rw-p
Size:               208 KB
Rss:                208 KB
Shared_Clean:         0 KB
Shared_Dirty:         0 KB
Private_Clean:        0 KB
Private_Dirty:      208 KB
b7e2b000-b7e34000 r-xp /lib/tls/libnss_files-2.3.2.so
Size:                36 KB
Rss:                 12 KB
Shared_Clean:        12 KB
Shared_Dirty:         0 KB
Private_Clean:        0 KB
Private_Dirty:        0 KB
...

(Includes a cleanup from "Richard Purdie" )

From: Torsten Foertsch 

show_smap calls first show_map and then prints its additional information to
the seq_file.  show_map checks if all it has to print fits into the buffer and
if yes marks the current vma as written.  While that is correct for show_map
it is not for show_smap.  Here the vma should be marked as written only after
the additional information is also written.

The attached patch cures the problem.  It moves the functionality of the
show_map function to a new function show_map_internal that is called with an
additional struct mem_size_stats* argument.  Then show_map calls
show_map_internal with NULL as struct mem_size_stats* whereas show_smap calls
it with a real pointer.  Now the final

	if (m->count < m->size)  /* vma is copied successfully */
		m->version = (vma != get_gate_vma(task))? vma->vm_start: 0;

is done only if the whole entry fits into the buffer.

Signed-off-by: Hugh Dickins 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds