Kent Overstreet 0460fef2a9 aio: use cancellation list lazily ... Cancelling kiocbs requires adding them to a per kioctx linked list, which is one of the few things we need to take the kioctx lock for in the fast path. But most kiocbs can't be cancelled - so if we just do this lazily, we can avoid quite a bit of locking overhead. While we're at it, instead of using a flag bit switch to using ki_cancel itself to indicate that a kiocb has been cancelled/completed. This lets us get rid of ki_flags entirely. [akpm@linux-foundation.org: remove buggy BUG()] Signed-off-by: Kent Overstreet <koverstreet@google.com> Cc: Zach Brown <zab@redhat.com> Cc: Felipe Balbi <balbi@ti.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Mark Fasheh <mfasheh@suse.com> Cc: Joel Becker <jlbec@evilplan.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Jens Axboe <axboe@kernel.dk> Cc: Asai Thambi S P <asamymuthupa@micron.com> Cc: Selvan Mani <smani@micron.com> Cc: Sam Bradshaw <sbradshaw@micron.com> Cc: Jeff Moyer <jmoyer@redhat.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Benjamin LaHaise <bcrl@kvack.org> Reviewed-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2013-05-07 18:38:29 -07:00
..
acm_ms.c	usb: gadget: push tty port allocation from gadget into f_acm	2013-04-03 14:43:31 +03:00
amd5536udc.c	usb: gadget: amd5536udc: don't assign gadget.dev.release directly	2013-03-18 11:17:46 +02:00
amd5536udc.h	usb: gadget: amd5536udc: remove unused structure member	2013-03-18 11:16:56 +02:00
at91_udc.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2013-05-01 17:51:54 -07:00
at91_udc.h
atmel_usba_udc.c	usb: gadget: atmel_usba_udc: don't touch gadget.dev.driver	2013-03-18 11:17:33 +02:00
atmel_usba_udc.h	usb: gadget: atmel: remove unused DMA_ADDR_INVALID	2013-03-18 11:18:11 +02:00
audio.c
bcm63xx_udc.c	usb: gadget: bcm63xx_udc: don't assign gadget.dev.release directly	2013-03-18 11:17:46 +02:00
cdc2.c	usb: gadget: cdc2: fix error return code in cdc_do_config()	2013-04-23 14:11:51 +03:00
composite.c	usb: gadget: the start of the configfs interface	2013-04-03 14:43:32 +03:00
config.c
configfs.c	usb, gadget: use appropriate warning accessors	2013-04-08 09:08:35 -07:00
dbgp.c
dummy_hcd.c	usb: gadget: dummy: fix sparse warning	2013-03-27 13:18:58 +02:00
epautoconf.c
ether.c	usb: gadget: move the global the_dev variable to their users	2013-04-03 14:43:31 +03:00
f_acm.c	usb: gadget: the start of the configfs interface	2013-04-03 14:43:32 +03:00
f_ecm.c	usb: gadget: move the global the_dev variable to their users	2013-04-03 14:43:31 +03:00
f_eem.c	usb: gadget: move the global the_dev variable to their users	2013-04-03 14:43:31 +03:00
f_fs.c	gadgetfs: don't bother with fops->owner	2013-04-09 14:13:03 -04:00
f_hid.c
f_loopback.c
f_mass_storage.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2013-02-26 20:16:07 -08:00
f_midi.c
f_ncm.c	usb: gadget: move the global the_dev variable to their users	2013-04-03 14:43:31 +03:00
f_obex.c	usb: gadget: f_obex: fix error return code in obex_bind()	2013-04-23 14:09:57 +03:00
f_phonet.c
f_rndis.c	usb: patches for v3.10 merge window	2013-04-05 15:18:00 -07:00
f_serial.c	usb: gadget: f_serial: add configfs support	2013-04-03 14:43:35 +03:00
f_sourcesink.c	usb: gadget: f_sourcesink.c: correct a copy-paste misnomer	2013-04-23 14:12:02 +03:00
f_subset.c	usb: gadget: move the global the_dev variable to their users	2013-04-03 14:43:31 +03:00
f_uac1.c	usb: gadget: f_uac1: silence an info leak warning	2013-03-04 13:13:58 +02:00
f_uac2.c
f_uvc.c	usb: gadget: uvc: Delay the status stage when setting alternate setting 1	2013-03-18 11:18:21 +02:00
f_uvc.h	usb: gadget: uvc: Fix coding style issues introduced by SS support	2013-03-18 11:18:18 +02:00
fsl_mxc_udc.c
fsl_qe_udc.c	usb: gadget: fsl_qe_udc: don't assign gadget.dev.release directly	2013-03-18 11:17:47 +02:00
fsl_qe_udc.h
fsl_udc_core.c	gadget: single_open() leaks	2013-05-05 00:16:11 -04:00
fsl_usb2_udc.h
functions.c
fusb300_udc.c	usb: gadget: fusb300_udc: bug fix of not doing idma reset for each time	2013-04-02 16:58:39 +03:00
fusb300_udc.h	usb: gadget: fusb300_udc: add FUSB300_EPSET0_STL_CLR for clearing EP0 stall	2013-04-02 16:57:24 +03:00
g_ffs.c	usb: patches for v3.10 merge window	2013-04-05 15:18:00 -07:00
g_zero.h
gadget_chips.h
gmidi.c
goku_udc.c	gadget: single_open() leaks	2013-05-05 00:16:11 -04:00
goku_udc.h	usb: gadget: goku_udc: let udc-core manage gadget->dev	2013-03-18 11:16:45 +02:00
hid.c
imx_udc.c	usb: gadget: imx_udc: don't touch gadget.dev.driver	2013-03-18 11:17:36 +02:00
imx_udc.h
inode.c	aio: use cancellation list lazily	2013-05-07 18:38:29 -07:00
Kconfig	USB: OMAP: ISP1301 needs USB_PHY	2013-04-25 10:58:00 -07:00
lpc32xx_udc.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2013-05-01 17:51:54 -07:00
m66592-udc.c	usb: gadget: m66592-udc: don't assign gadget.dev.release directly	2013-03-18 11:17:49 +02:00
m66592-udc.h	usb: gadget: m66592-udc: convert to udc_start/udc_stop	2013-01-24 21:11:29 +02:00
Makefile	usb: gadget: f_obex: convert to new function interface with backward compatibility	2013-04-03 14:43:35 +03:00
mass_storage.c
multi.c	usb: gadget: multi: fix error return code in rndis_do_config()	2013-04-23 14:11:29 +03:00
mv_u3d_core.c	usb: gadget: mv_u3d_core: remove unused clock	2013-04-02 11:42:47 +03:00
mv_u3d.h
mv_udc_core.c	usb: gadget: mv_udc_core: remove unused clock	2013-04-02 11:42:45 +03:00
mv_udc.h	usb: gadget: mv_udc_core: remove unused clock	2013-04-02 11:42:45 +03:00
ncm.c	usb: gadget: move the global the_dev variable to their users	2013-04-03 14:43:31 +03:00
ndis.h
net2272.c	usb: patches for v3.10 merge window	2013-04-05 15:18:00 -07:00
net2272.h
net2280.c	usb: patches for v3.10 merge window	2013-04-05 15:18:00 -07:00
net2280.h
nokia.c	usb: gadget: nokia: include f_ecm.c	2013-04-03 21:02:47 +03:00
omap_udc.c	usb: gadget: omap_udc: don't assign gadget.dev.release directly	2013-03-18 11:17:53 +02:00
omap_udc.h
pch_udc.c	usb: gadget: pch_udc: fix sparse warnings	2013-03-27 13:18:59 +02:00
printer.c	new helper: file_inode(file)	2013-02-22 23:31:31 -05:00
pxa25x_udc.c	usb: gadget: pxa25x_udc: don't touch gadget.dev.driver	2013-03-18 11:17:41 +02:00
pxa25x_udc.h	usb: gadget: pxa25x_udc: convert to udc_start/udc_stop	2013-01-24 21:11:31 +02:00
pxa27x_udc.c	usb: gadget: pxa27x_udc: fix Section Mismatches	2013-04-02 17:13:40 +03:00
pxa27x_udc.h	usb: gadget: pxa27x_udc: convert to udc_start/udc_stop	2013-01-24 21:11:31 +02:00
r8a66597-udc.c	usb: gadget: r8a66597-udc: don't assign gadget.dev.release directly	2013-03-18 11:17:54 +02:00
r8a66597-udc.h
rndis.c	procfs: new helper - PDE_DATA(inode)	2013-04-09 14:13:32 -04:00
rndis.h
s3c2410_udc.c	usb: gadget: s3c2410_udc: don't touch gadget.dev.driver	2013-03-18 11:17:43 +02:00
s3c2410_udc.h	usb: gadget: s3c2410: convert to udc_start/udc_stop	2013-01-24 21:11:32 +02:00
s3c-hsotg.c	usb: gadget: s3c-hsotg: fix PHY error handling	2013-03-18 11:18:29 +02:00
s3c-hsotg.h
s3c-hsudc.c	usb: gadget: s3c-hsudc: delete outdated comment	2013-03-18 11:18:10 +02:00
serial.c	usb: gadget: serial: convert to new interface of f_obex	2013-04-03 14:43:36 +03:00
storage_common.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2013-02-26 20:16:07 -08:00
tcm_usb_gadget.c
tcm_usb_gadget.h
u_ether.c	usb: gadget: move the global the_dev variable to their users	2013-04-03 14:43:31 +03:00
u_ether.h	usb: gadget: move the global the_dev variable to their users	2013-04-03 14:43:31 +03:00
u_phonet.h
u_serial.c	usb: gadget: u_serial: fix typo which cause build warning	2013-03-14 12:47:53 +02:00
u_serial.h	usb: gadget: nokia: use function framework for ACM	2013-04-03 14:43:20 +03:00
u_uac1.c	usb: gadget: u_uac1: NULL dereference on error path	2013-03-04 13:16:45 +02:00
u_uac1.h
udc-core.c	usb: patches for v3.10 merge window	2013-04-05 15:18:00 -07:00
usbstring.c
uvc_queue.c	usb: gadget/uvc: Add support for 'get_unmapped_area' for MMUless architectures	2013-04-02 11:42:49 +03:00
uvc_queue.h	usb: gadget/uvc: Port UVC webcam gadget to use videobuf2 framework	2013-04-02 11:42:48 +03:00
uvc_v4l2.c	usb: gadget/uvc: Add support for 'get_unmapped_area' for MMUless architectures	2013-04-02 11:42:49 +03:00
uvc_video.c	usb: gadget/uvc: Port UVC webcam gadget to use videobuf2 framework	2013-04-02 11:42:48 +03:00
uvc.h	usb: gadget: uvc: Delay the status stage when setting alternate setting 1	2013-03-18 11:18:21 +02:00
webcam.c
zero.c	usb: gadget: zero: put function instances on unbind	2013-04-23 14:12:21 +03:00