linux/include
Dave Chinner 19156840e3 dentry: move to per-sb LRU locks
With the dentry LRUs being per-sb structures, there is no real need for
a global dentry_lru_lock. The locking can be made more fine-grained by
moving to a per-sb LRU lock, isolating the LRU operations of different
filesytsems completely from each other. The need for this is independent
of any performance consideration that may arise: in the interest of
abstracting the lru operations away, it is mandatory that each lru works
around its own lock instead of a global lock for all of them.

[glommer@openvz.org: updated changelog ]
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Glauber Costa <glommer@openvz.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: Mel Gorman <mgorman@suse.de>
Cc: "Theodore Ts'o" <tytso@mit.edu>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Cc: Arve Hjønnevåg <arve@android.com>
Cc: Carlos Maiolino <cmaiolino@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Chuck Lever <chuck.lever@oracle.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: David Rientjes <rientjes@google.com>
Cc: Gleb Natapov <gleb@redhat.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: J. Bruce Fields <bfields@redhat.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Jerome Glisse <jglisse@redhat.com>
Cc: John Stultz <john.stultz@linaro.org>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Kent Overstreet <koverstreet@google.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Steven Whitehouse <swhiteho@redhat.com>
Cc: Thomas Hellstrom <thellstrom@vmware.com>
Cc: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-09-10 18:56:30 -04:00
..
acpi Merge branch 'acpi-hotplug' 2013-08-30 14:14:25 +02:00
asm-generic Merge branch 'for-v3.12' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping 2013-09-09 10:26:33 -07:00
clocksource ARM: SoC cleanups for 3.12 2013-09-06 13:21:16 -07:00
crypto crypto: scatterwalk - Add support for calculating number of SG elements 2013-08-21 21:27:58 +10:00
drm drm/exynos: fimd: replace struct fb_videomode with videomode 2013-09-05 13:43:44 +09:00
dt-bindings The common clk framework changes for 3.12 are dominated by clock driver 2013-09-09 15:49:04 -07:00
keys
kvm ARM: KVM: vgic: Bump VGIC_NR_IRQS to 256 2013-08-30 16:12:39 +03:00
linux dentry: move to per-sb LRU locks 2013-09-10 18:56:30 -04:00
math-emu
media Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2013-09-05 14:54:29 -07:00
memory
misc
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2013-09-05 14:54:29 -07:00
pcmcia
ras
rdma Merge branches 'cxgb4', 'flowsteer', 'ipoib', 'iser', 'mlx4', 'ocrdma' and 'qib' into for-next 2013-09-03 09:01:08 -07:00
rxrpc
scsi [SCSI] Generate uevents on certain unit attention codes 2013-08-26 18:52:27 +04:00
sound Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media 2013-09-05 11:55:59 -07:00
target
trace NFS client updates for Linux 3.12 2013-09-09 09:19:15 -07:00
uapi fs: bump inode and dentry counters to long 2013-09-10 18:56:29 -04:00
video fbdev changes for 3.12: 2013-09-05 09:49:32 -07:00
xen Features: 2013-09-04 17:45:39 -07:00
Kbuild