Theodore Ts'o 296c355cd6 ext4: Use tracepoints for mb_history trace file ...

The /proc/fs/ext4/<dev>/mb_history was maintained manually, and had a
number of problems: it required a largish amount of memory to be
allocated for each ext4 filesystem, and the s_mb_history_lock
introduced a CPU contention problem.  

By ripping out the mb_history code and replacing it with ftrace
tracepoints, and we get more functionality: timestamps, event
filtering, the ability to correlate mballoc history with other ext4
tracepoints, etc.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

2009-09-30 00:32:42 -04:00

..

caching

trivial: Miscellaneous documentation typo fixes

2009-06-12 18:01:47 +02:00

configfs

docsrc: build Documentation/ sources

2008-08-12 16:07:30 -07:00

pohmelfs

Staging: Pohmelfs: Added IO permissions and priorities.

2009-04-17 11:06:30 -07:00

9p.txt

9p: Update documentation to add fscache related bits

2009-09-23 13:03:46 -05:00

00-INDEX

update Documentation/filesystems/00-INDEX with new nfsd related docs.

2009-04-28 12:54:45 -04:00

adfs.txt

Fix typos in /Documentation : 'U-Z'

2006-11-30 04:58:40 +01:00

affs.txt

[PATCH] kernel Doc/ URL corrections

2005-11-22 09:14:30 -08:00

afs.txt

AFS: Documentation updates

2009-08-19 10:40:13 -07:00

autofs4-mount-control.txt

trivial: Miscellaneous documentation typo fixes

2009-06-12 18:01:47 +02:00

automount-support.txt

VFS: Unexport do_kern_mount() and clean up simple_pin_fs()

2006-06-09 09:34:16 -04:00

befs.txt

Fix typos in Documentation/: 'Q'-'R'

2006-10-03 22:54:15 +02:00

bfs.txt

remove mention of CONFIG_KMOD from documentation

2008-07-22 19:24:29 +10:00

btrfs.txt

Btrfs: Add Documentation/filesystem/btrfs.txt, remove old COPYING

2009-01-07 09:54:24 -05:00

cifs.txt

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

coda.txt

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

cramfs.txt

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

debugfs.txt

Document the debugfs API

2009-06-06 10:28:14 -06:00

dentry-locking.txt

[PATCH] VFS: split dentry locking documentation

2005-11-07 07:53:56 -08:00

devpts.txt

Document usage of multiple-instances of devpts

2009-01-02 10:19:36 -08:00

directory-locking

Documentation: Fix up docs still talking about i_sem

2007-05-24 10:16:17 -07:00

dlmfs.txt

Fix typos in Documentation/: 'D'-'E'

2006-10-03 22:47:42 +02:00

dnotify.txt

Documentation: move dnotify.txt to filesystems/

2008-02-07 08:42:17 -08:00

ecryptfs.txt

eCryptfs: Move ecryptfs docs into Documentation/filesystems/

2007-07-17 10:23:08 -07:00

exofs.txt

exofs: Documentation

2009-03-31 19:44:38 +03:00

Exporting

exportfs: update documentation

2007-10-22 08:13:21 -07:00

ext2.txt

Doc fix: ext2 can only have 32,000 subdirs, not 32,768

2009-06-18 13:03:44 -07:00

ext3.txt

trivial: document ext3 semantics of 'ro' option a bit better

2009-03-30 15:21:56 +02:00

ext4.txt

ext4: Update documentation about quota mount options

2009-09-29 15:59:34 -04:00

fiemap.txt

trivial: Miscellaneous documentation typo fixes

2009-06-12 18:01:47 +02:00

files.txt

fix f_count description in Documentation/filesystems/files.txt

2008-12-31 18:07:42 -05:00

fuse.txt

[PATCH] fuse: fix typo

2006-12-30 10:56:45 -08:00

gfs2-glocks.txt

GFS2: Update docs

2009-05-19 10:23:23 +01:00

gfs2-uevents.txt

GFS2: Add a document explaining GFS2's uevents

2009-08-17 11:11:41 +01:00

gfs2.txt

GFS2: Update docs

2009-05-19 10:23:23 +01:00

hfs.txt

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

hfsplus.txt

Documentation: document HFSPlus

2007-07-31 15:39:38 -07:00

hpfs.txt

misc doc and kconfig typos

2007-05-09 08:58:15 +02:00

inotify.txt

[PATCH] inotify (5/5): update kernel documentation

2006-06-20 05:25:19 -04:00

isofs.txt

isofs: let mode and dmode mount options override rock ridge mode setting

2009-06-18 13:03:45 -07:00

jfs.txt

JFS: document uid, gid, and umask mount options in jfs.txt

2007-03-09 10:27:31 -06:00

knfsd-stats.txt

Document /proc/fs/nfsd/pool_stats

2009-03-27 19:24:27 -04:00

Locking

update Documentation/filesystems/Locking

2009-06-24 08:15:25 -04:00

locks.txt

Documentation: move locks.txt in filesystems/

2007-10-09 18:32:45 -04:00

mandatory-locking.txt

locks: add warning about mandatory locking races

2007-10-09 18:32:45 -04:00

ncpfs.txt

ncpfs: remove dead URL from documentation

2009-09-23 07:39:42 -07:00

nfs41-server.txt

nfsd: revise 4.1 status documentation

2009-09-21 11:13:45 -04:00

nfs-rdma.txt

trivial: Miscellaneous documentation typo fixes

2009-06-12 18:01:47 +02:00

nfs.txt

NFS: Add a dns resolver for use with NFSv4 referrals and migration

2009-08-19 18:22:15 -04:00

nfsroot.txt

trivial: fix typo "for for" in multiple files

2009-09-21 15:14:54 +02:00

nilfs2.txt

nilfs2: modify list of unsupported features in caveats

2009-06-10 23:41:11 +09:00

ntfs.txt

NTFS: update homepage

2008-09-02 19:21:37 -07:00

ocfs2.txt

ocfs2: add mount option and Kconfig option for acl

2009-01-05 08:36:52 -08:00

omfs.txt

omfs: add filesystem documentation

2008-07-26 12:00:05 -07:00

porting

iget: remove iget() and the read_inode() super op as being obsolete

2008-02-07 08:42:29 -08:00

proc.txt

ext4: Use tracepoints for mb_history trace file

2009-09-30 00:32:42 -04:00

quota.txt

quota: documentation for sending "below quota" messages via netlink and tiny doc update

2008-08-12 16:07:27 -07:00

ramfs-rootfs-initramfs.txt

Trivial Documentation/filesystems/ramfs-rootfs-initramfs.txt fix

2008-11-30 11:40:56 -08:00

relay.txt

relay: add buffer-only channels; useful for early logging

2008-07-26 12:00:04 -07:00

romfs.txt

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

rpc-cache.txt

Documentation: move rpc-cache.txt to filesystems/

2008-04-11 13:20:52 -06:00

seq_file.txt

Doc: seq_file.txt fix wrong dd command example.

2009-09-10 14:33:35 -06:00

sharedsubtree.txt

doc/filesystems: more mount cleanups

2009-09-24 07:20:57 -07:00

smbfs.txt

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

spufs.txt

Fix typos in /Documentation : 'U-Z'

2006-11-30 04:58:40 +01:00

squashfs.txt

Squashfs: fix documentation typo, Cramfs filesystem limit is 256 MiB

2009-03-05 00:40:13 +00:00

sysfs-pci.txt

trivial: Miscellaneous documentation typo fixes

2009-06-12 18:01:47 +02:00

sysfs.txt

driver core: documentation: make it clear that sysfs is optional

2009-07-28 13:45:23 -07:00

sysv-fs.txt

[PATCH] fs/sysv/: doc cleanup

2006-12-07 08:39:44 -08:00

tmpfs.txt

hugh: update email address

2009-05-21 13:14:32 -07:00

ubifs.txt

UBIFS: remove fast unmounting

2009-01-29 16:34:30 +02:00

udf.txt

udf: implement mode and dmode mounting options

2009-04-02 12:29:50 +02:00

ufs.txt

[PATCH] ufs2 write: mount as rw

2007-02-12 09:48:40 -08:00

vfat.txt

Merge git://git.kernel.org/pub/scm/linux/kernel/git/hirofumi/fatfs-2.6

2009-06-16 11:29:44 -07:00

vfs.txt

HWPOISON: Define a new error_remove_page address space op for async truncation

2009-09-16 11:50:13 +02:00

xfs.txt

[XFS] remove restricted chown parameter from xfs linux

2008-10-30 18:30:09 +11:00

xip.txt

DOC: update xip method info

2008-11-12 17:17:17 -08:00