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Andrew Morton aba76fdb8a [PATCH] io-accounting: report in procfs 
Add a simple /proc/pid/io to show the IO accounting fields.

Maybe this shouldn't be merged in mainline - the preferred reporting channel
is taskstats.  But given the poor state of our userspace support for
taskstats, this is useful for developer-testing, at least.  And it improves
the changes that the procps developers will wire it up into top(1).  Opinions
are sought.

The patch also wires up the existing IO-accounting fields.

It's a bit racy on 32-bit machines: if process A reads process B's
/proc/pid/io while process B is updating one of those 64-bit counters, process
A could see an intermediate result.

Cc: Jay Lan <jlan@sgi.com>
Cc: Shailabh Nagar <nagar@watson.ibm.com>
Cc: Balbir Singh <balbir@in.ibm.com>
Cc: Chris Sturtivant <csturtiv@sgi.com>
Cc: Tony Ernst <tee@sgi.com>
Cc: Guillaume Thouvenin <guillaume.thouvenin@bull.net>
Cc: David Wright <daw@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-10 09:55:41 -08:00
..
9p
[PATCH] 9p: change uses of f_{dentry,vfsmnt} to use f_path
2006-12-08 08:28:43 -08:00
adfs
[PATCH] struct path: convert adfs
2006-12-08 08:28:43 -08:00
affs
[PATCH] affs: change uses of f_{dentry, vfsmnt} to use f_path
2006-12-08 08:28:43 -08:00
afs
[PATCH] rename struct namespace to struct mnt_namespace
2006-12-08 08:28:51 -08:00
autofs
[PATCH] autofs: change uses of f_{dentry, vfsmnt} to use f_path
2006-12-08 08:28:43 -08:00
autofs4
[PATCH] autofs4: change uses of f_{dentry, vfsmnt} to use f_path
2006-12-08 08:28:43 -08:00
befs
[PATCH] struct path: convert befs
2006-12-08 08:28:44 -08:00
bfs
[PATCH] struct path: convert bfs
2006-12-08 08:28:44 -08:00
cifs
[PATCH] io-accounting-read-accounting cifs fix
2006-12-10 09:55:41 -08:00
coda
[PATCH] struct path: convert coda
2006-12-08 08:28:44 -08:00
configfs
[PATCH] configfs: change uses of f_{dentry, vfsmnt} to use f_path
2006-12-08 08:28:43 -08:00
cramfs
[PATCH] struct path: convert cramfs
2006-12-08 08:28:44 -08:00
debugfs
[PATCH] debugfs: add header file
2006-11-25 13:28:33 -08:00
devpts
[PATCH] inode-diet: Eliminate i_blksize from the inode structure
2006-09-27 08:26:18 -07:00
dlm
Merge master.kernel.org:/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw
2006-12-07 09:13:20 -08:00
ecryptfs
[PATCH] ecryptfs: change uses of f_{dentry, vfsmnt} to use f_path
2006-12-08 08:28:43 -08:00
efs
[PATCH] struct path: convert efs
2006-12-08 08:28:45 -08:00
exportfs
[PATCH] VFS: Make filldir_t and struct kstat deal in 64-bit inode numbers
2006-10-03 08:03:40 -07:00
ext2
[PATCH] LOG2: Implement a general integer log2 facility in the kernel
2006-12-08 08:28:51 -08:00
ext3
[PATCH] LOG2: Implement a general integer log2 facility in the kernel
2006-12-08 08:28:51 -08:00
ext4
[PATCH] ext4: change uses of f_{dentry, vfsmnt} to use f_path
2006-12-08 08:28:41 -08:00
fat
[PATCH] fat: change uses of f_{dentry,vfsmnt} to use f_path
2006-12-08 08:28:41 -08:00
freevxfs
[PATCH] struct path: convert freevxfs
2006-12-08 08:28:45 -08:00
fuse
[PATCH] struct path: convert fuse
2006-12-08 08:28:45 -08:00
gfs2
[PATCH] struct path: convert gfs2
2006-12-08 08:28:45 -08:00
hfs
[PATCH] struct path: convert hfs
2006-12-08 08:28:45 -08:00
hfsplus
[PATCH] struct path: convert hfsplus
2006-12-08 08:28:45 -08:00
hostfs
[PATCH] struct path: convert hostfs
2006-12-08 08:28:45 -08:00
hpfs
[PATCH] struct path: convert hpfs
2006-12-08 08:28:45 -08:00
hppfs
[PATCH] struct path: convert hppfs
2006-12-08 08:28:45 -08:00
hugetlbfs
[PATCH] struct path: convert hugetlbfs
2006-12-08 08:28:45 -08:00
isofs
[PATCH] isofs: change uses of f_{dentry, vfsmnt} to use f_path
2006-12-08 08:28:41 -08:00
jbd
[PATCH] make fs/jbd/transaction.c:__journal_temp_unlink_buffer() static
2006-12-07 08:39:40 -08:00
jbd2
[PATCH] jbd2: wait for already submitted t_sync_datalist buffer to complete
2006-12-07 08:39:42 -08:00
jffs
[PATCH] struct path: convert jffs
2006-12-08 08:28:46 -08:00
jffs2
[PATCH] struct path: convert jffs2
2006-12-08 08:28:46 -08:00
jfs
[PATCH] struct path: convert jfs
2006-12-08 08:28:46 -08:00
lockd
[PATCH] struct path: convert lockd
2006-12-08 08:28:47 -08:00
minix
[PATCH] struct path: convert minix
2006-12-08 08:28:47 -08:00
msdos
[PATCH] fat: add fat_getattr()
2006-11-16 11:43:38 -08:00
ncpfs
[PATCH] struct path: convert ncpfs
2006-12-08 08:28:48 -08:00
nfs
[PATCH] rename struct namespace to struct mnt_namespace
2006-12-08 08:28:51 -08:00
nfs_common
[PATCH] nfs_common endianness annotations
2006-10-20 10:26:41 -07:00
nfsd
[PATCH] nfsd: replace kmalloc+memset with kcalloc + simplify NULL check
2006-12-08 08:29:02 -08:00
nls
[PATCH] fs: make nls_cp936.c handle some U00XY characters and U20AC correctly
2006-12-07 08:39:46 -08:00
ntfs
[PATCH] ntfs: change uses of f_{dentry, vfsmnt} to use f_path
2006-12-08 08:28:42 -08:00
ocfs2
[PATCH] struct path: convert ocfs2
2006-12-08 08:28:48 -08:00
openpromfs
[PATCH] struct path: convert openpromfs
2006-12-08 08:28:48 -08:00
partitions
[MIPS] Rename SNI_RM200_PCI to just SNI_RM preparing for more RM machines
2006-12-09 01:03:58 +00:00
proc
[PATCH] io-accounting: report in procfs
2006-12-10 09:55:41 -08:00
qnx4
[PATCH] struct path: convert qnx4
2006-12-08 08:28:48 -08:00
ramfs
[PATCH] struct path: convert ramfs
2006-12-08 08:28:49 -08:00
reiserfs
[PATCH] rename struct namespace to struct mnt_namespace
2006-12-08 08:28:51 -08:00
romfs
[PATCH] struct path: convert romfs
2006-12-08 08:28:49 -08:00
smbfs
[PATCH] struct path: convert smbfs
2006-12-08 08:28:49 -08:00
sysfs
[PATCH] sysfs: change uses of f_{dentry, vfsmnt} to use f_path
2006-12-08 08:28:41 -08:00
sysv
[PATCH] struct path: convert sysv
2006-12-08 08:28:50 -08:00
udf
[PATCH] struct path: convert udf
2006-12-08 08:28:50 -08:00
ufs
[PATCH] struct path: convert ufs
2006-12-08 08:28:50 -08:00
vfat
[PATCH] fat: add fat_getattr()
2006-11-16 11:43:38 -08:00
xfs
[PATCH] xfs: change uses of f_{dentry,vfsmnt} to use f_path
2006-12-08 08:28:43 -08:00
aio.c
[PATCH] aio: remove ki_retried debugging member
2006-12-07 08:39:46 -08:00
attr.c
[PATCH] capable/capability.h (fs/)
2006-01-11 18:42:13 -08:00
bad_inode.c
[PATCH] Remove readv/writev methods and use aio_read/aio_write instead
2006-10-01 00:39:28 -07:00
binfmt_aout.c
[PATCH] VFS: change struct file to use struct path
2006-12-08 08:28:41 -08:00
binfmt_elf_fdpic.c
[PATCH] add process_session() helper routine
2006-12-08 08:28:51 -08:00
binfmt_elf.c
[PATCH] add process_session() helper routine
2006-12-08 08:28:51 -08:00
binfmt_em86.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
binfmt_flat.c
[PATCH] VFS: change struct file to use struct path
2006-12-08 08:28:41 -08:00
binfmt_misc.c
[PATCH] VFS: change struct file to use struct path
2006-12-08 08:28:41 -08:00
binfmt_script.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
binfmt_som.c
[PARISC] Fix fs/binfmt_som.c
2006-10-04 06:51:26 -06:00
bio.c
[PATCH] slab: remove kmem_cache_t
2006-12-07 08:39:25 -08:00
block_dev.c
[PATCH] VFS: change struct file to use struct path
2006-12-08 08:28:41 -08:00
buffer.c
[PATCH] io-accounting: write-cancel accounting
2006-12-10 09:55:41 -08:00
char_dev.c
[PATCH] BLOCK: Move extern declarations out of fs/*.c into header files [try #6]
2006-09-30 20:52:18 +02:00
compat_ioctl.c
[PATCH] VFS: change struct file to use struct path
2006-12-08 08:28:41 -08:00
compat.c
[PATCH] VFS: change struct file to use struct path
2006-12-08 08:28:41 -08:00
dcache.c
[PATCH] dcache: avoid RCU for never-hashed dentries
2006-12-07 08:39:41 -08:00
dcookies.c
[PATCH] slab: remove kmem_cache_t
2006-12-07 08:39:25 -08:00
direct-io.c
[PATCH] io-accounting: direct-io
2006-12-10 09:55:41 -08:00
dnotify.c
[PATCH] VFS: change struct file to use struct path
2006-12-08 08:28:41 -08:00
dquot.c
[PATCH] VFS: change struct file to use struct path
2006-12-08 08:28:41 -08:00
drop_caches.c
[PATCH] drop-pagecache
2006-01-08 20:12:40 -08:00
eventpoll.c
[PATCH] VFS: change struct file to use struct path
2006-12-08 08:28:41 -08:00
exec.c
[PATCH] add child reaper to pid_namespace
2006-12-08 08:28:52 -08:00
fcntl.c
[PATCH] VFS: change struct file to use struct path
2006-12-08 08:28:41 -08:00
fifo.c
[PATCH] pipe.c/fifo.c code cleanups
2006-04-11 13:53:33 +02:00
file_table.c
[PATCH] VFS: change struct file to use struct path
2006-12-08 08:28:41 -08:00
file.c
[PATCH] file: kill unnecessary timer in fdtable_defer
2006-12-07 08:39:32 -08:00
filesystems.c
[PATCH] Ban register_filesystem(NULL);
2006-09-29 09:18:20 -07:00
fs-writeback.c
[PATCH] BLOCK: Remove dependence on existence of blockdev_superblock [try #6]
2006-09-30 20:52:26 +02:00
generic_acl.c
[PATCH] Generic infrastructure for acls
2006-09-29 09:18:24 -07:00
inode.c
[PATCH] VFS: change struct file to use struct path
2006-12-08 08:28:41 -08:00
inotify_user.c
[PATCH] VFS: change struct file to use struct path
2006-12-08 08:28:41 -08:00
inotify.c
[PATCH] severing fs.h, radix-tree.h -> sched.h
2006-12-04 02:00:24 -05:00
internal.h
[PATCH] CONFIG_BLOCK internal.h cleanups
2006-09-30 20:52:32 +02:00
ioctl.c
[PATCH] VFS: change struct file to use struct path
2006-12-08 08:28:41 -08:00
ioprio.c
[PATCH] block layer: ioprio_best function fix
2006-10-12 15:09:51 +02:00
Kconfig
Fix typos in doc and comments
2006-11-30 05:32:19 +01:00
Kconfig.binfmt
[PATCH] frv: suppress configuration of certain features for FRV
2006-01-08 20:13:36 -08:00
libfs.c
[PATCH] VFS: change struct file to use struct path
2006-12-08 08:28:41 -08:00
locks.c
[PATCH] VFS: change struct file to use struct path
2006-12-08 08:28:41 -08:00
Makefile
[PATCH] fsstack: Introduce fsstack_copy_{attr,inode}_*
2006-12-08 08:28:40 -08:00
mbcache.c
[PATCH] slab: remove kmem_cache_t
2006-12-07 08:39:25 -08:00
mpage.c
[PATCH] BLOCK: Dissociate generic_writepages() from mpage stuff [try #6]
2006-09-30 20:52:26 +02:00
namei.c
[PATCH] VFS: change struct file to use struct path
2006-12-08 08:28:41 -08:00
namespace.c
[PATCH] rename struct namespace to struct mnt_namespace
2006-12-08 08:28:51 -08:00
nfsctl.c
Remove obsolete #include <linux/config.h>
2006-06-30 19:25:36 +02:00
no-block.c
[PATCH] BLOCK: Make it possible to disable the block layer [try #6]
2006-09-30 20:52:31 +02:00
open.c
[PATCH] VFS: change struct file to use struct path
2006-12-08 08:28:41 -08:00
pipe.c
[PATCH] VFS: change struct file to use struct path
2006-12-08 08:28:41 -08:00
pnode.c
[PATCH] rename struct namespace to struct mnt_namespace
2006-12-08 08:28:51 -08:00
pnode.h
[PATCH] rename struct namespace to struct mnt_namespace
2006-12-08 08:28:51 -08:00
posix_acl.c
[PATCH] kmemdup: some users
2006-10-01 00:39:19 -07:00
quota_v1.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
quota_v2.c
[PATCH] sem2mutex: quota
2006-03-23 07:38:11 -08:00
quota.c
[PATCH] BLOCK: Make it possible to disable the block layer [try #6]
2006-09-30 20:52:31 +02:00
read_write.c
[PATCH] VFS: change struct file to use struct path
2006-12-08 08:28:41 -08:00
read_write.h
[PATCH] Remove readv/writev methods and use aio_read/aio_write instead
2006-10-01 00:39:28 -07:00
readdir.c
[PATCH] VFS: change struct file to use struct path
2006-12-08 08:28:41 -08:00
select.c
[PATCH] enforce RLIMIT_NOFILE in poll()
2006-09-29 09:18:23 -07:00
seq_file.c
[PATCH] VFS: change struct file to use struct path
2006-12-08 08:28:41 -08:00
splice.c
[PATCH] VFS: change struct file to use struct path
2006-12-08 08:28:41 -08:00
stack.c
[PATCH] fsstack: Introduce fsstack_copy_{attr,inode}_*
2006-12-08 08:28:40 -08:00
stat.c
[PATCH] VFS: change struct file to use struct path
2006-12-08 08:28:41 -08:00
super.c
[PATCH] VFS: change struct file to use struct path
2006-12-08 08:28:41 -08:00
sync.c
[PATCH] VFS: change struct file to use struct path
2006-12-08 08:28:41 -08:00
utimes.c
[PATCH] severing fs.h, radix-tree.h -> sched.h
2006-12-04 02:00:24 -05:00
xattr_acl.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
xattr.c
[PATCH] VFS: change struct file to use struct path
2006-12-08 08:28:41 -08:00