1. 09 May, 2013 1 commit
  2. 07 May, 2013 3 commits
    • Kent Overstreet's avatar
      aio: use cancellation list lazily · 0460fef2
      Kent Overstreet authored
      
      
      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: default avatarKent 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: default avatar"Theodore Ts'o" <tytso@mit.edu>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      0460fef2
    • Kent Overstreet's avatar
      aio: move private stuff out of aio.h · 4e179bca
      Kent Overstreet authored
      
      Signed-off-by: default avatarKent 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>
      Acked-by: default avatarJeff Moyer <jmoyer@redhat.com>
      Cc: Al Viro <viro@zeniv.linux.org.uk>
      Cc: Benjamin LaHaise <bcrl@kvack.org>
      Cc: Theodore Ts'o <tytso@mit.edu>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      4e179bca
    • Zach Brown's avatar
      gadget: remove only user of aio retry · a80bf61e
      Zach Brown authored
      
      
      This removes the only in-tree user of aio retry.  This will let us
      remove the retry code from the aio core.
      
      Removing retry is relatively easy as the USB gadget wasn't using it to
      retry IOs at all.  It always fully submitted the IO in the context of
      the initial io_submit() call.  It only used the AIO retry facility to
      get the submitter's mm context for copying the result of a read back to
      user space.  This is easy to implement with use_mm() and a work struct,
      much like kvm does with async_pf_execute() for get_user_pages().
      
      [akpm@linux-foundation.org: coding-style fixes]
      Signed-off-by: default avatarZach Brown <zab@redhat.com>
      Signed-off-by: default avatarKent Overstreet <koverstreet@google.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>
      Acked-by: default avatarJeff Moyer <jmoyer@redhat.com>
      Cc: Al Viro <viro@zeniv.linux.org.uk>
      Cc: Benjamin LaHaise <bcrl@kvack.org>
      Cc: Theodore Ts'o <tytso@mit.edu>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      a80bf61e
  3. 04 May, 2013 1 commit
  4. 30 Apr, 2013 1 commit
  5. 29 Apr, 2013 3 commits
  6. 25 Apr, 2013 4 commits
    • Arnd Bergmann's avatar
      USB: ehci-msm: USB_MSM_OTG needs USB_PHY · 4626b8da
      Arnd Bergmann authored
      
      
      The Kconfig entry for USB_EHCI_MSM unconditionally selects USB_MSM_OTG,
      which is now only visible when USB_PHY is also enabled.
      
      This adds an appropriate dependency and enables USB_PHY in the msm
      defconfig, avoiding the Kbuild warning:
      
      warning: (USB_EHCI_MSM) selects USB_MSM_OTG which has unmet direct dependencies (USB_SUPPORT && USB_PHY && (USB || USB_GADGET) && ARCH_MSM)
      Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
      Cc: Felipe Balbi <balbi@ti.com>
      Cc: Pavankumar Kondeti <pkondeti@codeaurora.org>
      Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      4626b8da
    • Arnd Bergmann's avatar
      USB: OHCI: avoid conflicting platform drivers · 8097804e
      Arnd Bergmann authored
      
      
      Like the EHCI driver, OHCI supports a large number of different platform
      glue drivers by directly including them, which causes problems with
      conflicting macro definitions in some cases. As more ARM architecture
      specific back-ends are required to coexist in a single build, we should
      split those out into separate drivers. Unfortunately, the infrastructure
      for that is still under development, so to give us more time, this uses
      a separate *_PLATFORM_DRIVER macro for each ARM specific OHCI backend,
      just like we already do on PowerPC and some of the other ARM platforms.
      
      In linux-3.10, only the SPEAr and CNS3xxx back-ends would actually conflict
      without this patch, but over time we would get more of them, so this
      is a way to avoid having to patch the driver every time it breaks. We
      should still split out all back-ends into separate loadable modules,
      but that work is only needed to improve code size and cleanliness after
      this patch, not for correctness.
      
      While we're here, this fixes the incorrectly sorted error path
      for the OMAP1 and OMAP3 backends to ensure we always unregister
      the exact set of drivers that were registered before erroring out.
      Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
      Acked-by: default avatarAlan Stern <stern@rowland.harvard.edu>
      Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      8097804e
    • Arnd Bergmann's avatar
      USB: OMAP: ISP1301 needs USB_PHY · c3c683ea
      Arnd Bergmann authored
      
      
      The Kconfig entry for USB_OMAP unconditionally selects USB_ISP1301,
      which is now only visible when USB_PHY is also enabled.
      
      This adds an appropriate dependency and enables USB_PHY in the omap1
      defconfig, avoiding these build warnings:
      
      warning: (USB_OHCI_HCD && USB_OMAP) selects ISP1301_OMAP which has unmet direct dependencies (USB_SUPPORT && USB_PHY && I2C && ARCH_OMAP_OTG)
      
      Also fix a Makefile typo while we're at it.
      Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
      Cc: Felipe Balbi <balbi@ti.com>
      Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      c3c683ea
    • Arnd Bergmann's avatar
      USB: lpc32xx: ISP1301 needs USB_PHY · 64e98a79
      Arnd Bergmann authored
      
      
      The Kconfig entry for USB_LPC32XX unconditionally selects USB_ISP1301,
      which is now only visible when USB_PHY is also enabled.
      
      This adds an appropriate dependency and enables USB_PHY in the msm
      defconfig, avoiding these build errors:
      
      warning: (USB_LPC32XX) selects USB_ISP1301 which has unmet direct dependencies (USB_SUPPORT && USB_PHY && (USB || USB_GADGET) && I2C)
      drivers/built-in.o: In function `usb_hcd_nxp_probe':
      drivers/usb/host/ohci-nxp.c:224: undefined reference to `isp1301_get_client'
      drivers/built-in.o: In function `lpc32xx_udc_probe':
      drivers/usb/gadget/lpc32xx_udc.c:3071: undefined reference to `isp1301_get_client'
      Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
      Cc: Felipe Balbi <balbi@ti.com>
      Cc: Roland Stigge <stigge@antcom.de>
      Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      64e98a79
  7. 24 Apr, 2013 1 commit
  8. 23 Apr, 2013 12 commits
  9. 19 Apr, 2013 11 commits
  10. 18 Apr, 2013 1 commit
  11. 17 Apr, 2013 2 commits