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* libata: clear dev->ering in smarter wayTejun Heo2009-02-023-10/+19
| | | | | | | | | | | | | | | | | | | | | dev->ering used to be cleared together with the rest of ata_device in ata_dev_init() which is called whenever a probing event occurs. dev->ering is about to be used to track probing failures so it needs to remain persistent over multiple porbing events. This patch achieves this by doing the following. * Instead of CLEAR_OFFSET, define CLEAR_BEGIN and CLEAR_END and only clear between BEGIN and END. ering is moved after END. The split of persistent area is to allow hotter items remain at the head. * ering is explicitly cleared on ata_dev_disable() and when device attach succeeds. So, ering is persistent throug a device's life time (unless explicitly cleared of course) and also through periods inbetween disablement of an attached device and successful detection of the next one. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* libata: check onlineness before using SPD in sata_down_spd_limit()Tejun Heo2009-02-021-3/+8
| | | | | | | | | sata_down_spd_limit() should check whether the link is online before using the SPD value to determine how to limit the link speed. Factor out onlineness test and test it from sata_down_spd_limit(). Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* libata: move ata_dev_disable() to libata-eh.cTejun Heo2009-02-023-13/+22
| | | | | | | | ata_dev_disable() is about to be more tightly integrated into EH logic. Move it to libata-eh.c. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* libata: fix EH device failure handlingTejun Heo2009-02-021-2/+3
| | | | | | | | | | | | | | | The dev->pio_mode > XFER_PIO_0 test is there to avoid unnecessary speed down warning messages but it accidentally disabled SATA link spd down during configuration phase after reset where PIO mode is always zero. This patch fixes the problem by moving the test where it belongs. This makes libata probing sequence behave better when the connection is flaky at higher link speeds which isn't too uncommon for eSATA devices. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* sata_nv: ck804 has borked hardreset tooTejun Heo2009-02-021-1/+6
| | | | | | | | | | While playing with nvraid, I found out that rmmoding and insmoding often trigger hardreset failure on the first port (the second one was always okay). Seriously, how diverse can you get with hardreset behaviors? Anyways, make ck804 use noclassify variant too. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* ide/libata: fix ata_id_is_cfa() (take 4)Sergei Shtylyov2009-02-021-5/+10
| | | | | | | | | | | When checking for the CFA feature set support, ata_id_is_cfa() tests bit 2 in word 82 of the identify data instead the word 83; it also checks the ATA/PI version support in the word 80 (which the CompactFlash specifications have as reserved), this having no slightest chance to work on the modern CF cards that don't have 0x848A in the word 0... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* libata: fix kernel-doc warningsRandy Dunlap2009-02-022-2/+2
| | | | | | | | | | Fix libata kernel-doc warnings: Warning(linux-next-20090120//drivers/ata/libata-core.c:4720): Excess function parameter 'dev' description in 'ata_qc_new' Warning(linux-next-20090120//drivers/ata/libata-scsi.c:428): No description found for parameter 'ap' Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* ahci: add a module parameter to ignore the SSS flags for async scanningArjan van de Ven2009-02-021-1/+8
| | | | | | | | | | | | The SSS flag, which directs the OS to spin up one disk at a time to not have the PSU blow out, sometimes gets set even when not needed. The effect of this is a longer-than-needed boot time. This patch adds a module parameter that makes the driver ignore SSS at least as far as the parallel scan during boot is concerned... Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* sata_mv: Fix chip type for Hightpoint RocketRaid 1740/1742Mark Lord2009-02-021-2/+2
| | | | | | | | | | | Fix chip type for the Highpoint RocketRAID 1740 and 1742 PCI cards. These really do have Marvell 6042 chips on them, rather than the 5081 chip. Confirmed by multiple (two) users (for the 1740), and by examining the product photographs from Highpoint's web site. Signed-off-by: Mark Lord <mlord@pobox.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* [libata] sata_sil: Fix compilation error with libata debugging enabledPasi Kärkkäinen2009-02-021-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | I tried compiling 2.6.29-rc1 and 2.6.29-rc3 with libata debugging enabled and got the following error: CC [M] drivers/ata/sata_sil.o drivers/ata/sata_sil.c: In function 'sil_fill_sg': drivers/ata/sata_sil.c:327: error: 'pi' undeclared (first use in this function) drivers/ata/sata_sil.c:327: error: (Each undeclared identifier is reported only once drivers/ata/sata_sil.c:327: error: for each function it appears in.) make[2]: *** [drivers/ata/sata_sil.o] Error 1 make[1]: *** [drivers/ata] Error 2 make: *** [drivers] Error 2 include/linux/libata.h has the following enabled: #define ATA_DEBUG #define ATA_VERBOSE_DEBUG #define ATA_IRQ_TRAP This fixes the compilation. Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* Manually revert "mlock: downgrade mmap sem while populating mlocked regions"Linus Torvalds2009-02-011-45/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This essentially reverts commit 8edb08caf68184fb170f4f69c7445929e199eaea. It downgraded our mmap semaphore to a read-lock while mlocking pages, in order to allow other threads (and external accesses like "ps" et al) to walk the vma lists and take page faults etc. Which is a nice idea, but the implementation does not work. Because we cannot upgrade the lock back to a write lock without releasing the mmap semaphore, the code had to release the lock entirely and then re-take it as a writelock. However, that meant that the caller possibly lost the vma chain that it was following, since now another thread could come in and mmap/munmap the range. The code tried to work around that by just looking up the vma again and erroring out if that happened, but quite frankly, that was just a buggy hack that doesn't actually protect against anything (the other thread could just have replaced the vma with another one instead of totally unmapping it). The only way to downgrade to a read map _reliably_ is to do it at the end, which is likely the right thing to do: do all the 'vma' operations with the write-lock held, then downgrade to a read after completing them all, and then do the "populate the newly mlocked regions" while holding just the read lock. And then just drop the read-lock and return to user space. The (perhaps somewhat simpler) alternative is to just make all the callers of mlock_vma_pages_range() know that the mmap lock got dropped, and just re-grab the mmap semaphore if it needs to mlock more than one vma region. So we can do this "downgrade mmap sem while populating mlocked regions" thing right, but the way it was done here was absolutely not correct. Thus the revert, in the expectation that we will do it all correctly some day. Cc: Lee Schermerhorn <lee.schermerhorn@hp.com> Cc: Rik van Riel <riel@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: stable@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'header-fixes-for-linus' of ↵Linus Torvalds2009-01-3190-37/+125
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'header-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (90 commits) headers_check fix: x86, swab.h headers_check fix: x86, sigcontext32.h headers_check fix: x86, sigcontext.h headers_check fix: x86, ptrace-abi.h headers_check fix: x86, mtrr.h headers_check fix: x86, mce.h headers_check fix: x86, kvm.h headers_check fix: x86, e820.h headers_check fix: linux/rtnetlink.h headers_check fix: linux/nubus.h headers_check fix: video/uvesafb.h headers_check fix: video/sisfb.h headers_check fix: sound/hdsp.h headers_check fix: mtd/inftl-user.h headers_check fix: linux/virtio_net.h headers_check fix: linux/virtio_console.h headers_check fix: linux/virtio_blk.h headers_check fix: linux/videodev.h headers_check fix: linux/video_encoder.h headers_check fix: linux/video_decoder.h ...
| * headers_check fix: x86, swab.hJaswinder Singh Rajput2009-01-311-1/+1
| | | | | | | | | | | | | | | | | | fix the following 'make headers_check' warnings: usr/include/asm/swab.h:4: include of <linux/types.h> is preferred over <asm/types.h> usr/include/asm/swab.h:7: found __[us]{8,16,32,64} type without #include <linux/types.h> Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
| * headers_check fix: x86, sigcontext32.hJaswinder Singh Rajput2009-01-311-0/+2
| | | | | | | | | | | | | | | | fix the following 'make headers_check' warning: usr/include/asm/sigcontext32.h:20: found __[us]{8,16,32,64} type without #include <linux/types.h> Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
| * headers_check fix: x86, sigcontext.hJaswinder Singh Rajput2009-01-311-1/+1
| | | | | | | | | | | | | | | | | | fix the following 'make headers_check' warnings: usr/include/asm/sigcontext.h:5: include of <linux/types.h> is preferred over <asm/types.h> usr/include/asm/sigcontext.h:24: found __[us]{8,16,32,64} type without #include <linux/types.h> Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
| * headers_check fix: x86, ptrace-abi.hJaswinder Singh Rajput2009-01-311-1/+1
| | | | | | | | | | | | | | | | | | fix the following 'make headers_check' warnings: usr/include/asm/ptrace-abi.h:86: include of <linux/types.h> is preferred over <asm/types.h> usr/include/asm/ptrace-abi.h:93: found __[us]{8,16,32,64} type without #include <linux/types.h> Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
| * headers_check fix: x86, mtrr.hJaswinder Singh Rajput2009-01-311-0/+1
| | | | | | | | | | | | | | | | fix the following 'make headers_check' warning: usr/include/asm/mtrr.h:61: found __[us]{8,16,32,64} type without #include <linux/types.h> Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
| * headers_check fix: x86, mce.hJaswinder Singh Rajput2009-01-311-4/+1
| | | | | | | | | | | | | | | | | | fix the following 'make headers_check' warnings: usr/include/asm/mce.h:7: include of <linux/types.h> is preferred over <asm/types.h> usr/include/asm/mce.h:29: found __[us]{8,16,32,64} type without #include <linux/types.h> Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
| * headers_check fix: x86, kvm.hJaswinder Singh Rajput2009-01-311-1/+1
| | | | | | | | | | | | | | | | | | fix the following 'make headers_check' warnings: usr/include/asm/kvm.h:9: include of <linux/types.h> is preferred over <asm/types.h> usr/include/asm/kvm.h:16: found __[us]{8,16,32,64} type without #include <linux/types.h> Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
| * headers_check fix: x86, e820.hJaswinder Singh Rajput2009-01-311-0/+1
| | | | | | | | | | | | | | | | fix the following 'make headers_check' warning: usr/include/asm/e820.h:44: found __[us]{8,16,32,64} type without #include <linux/types.h> Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
| * headers_check fix: linux/rtnetlink.hJaswinder Singh Rajput2009-01-311-0/+1
| | | | | | | | | | | | | | | | fix the following 'make headers_check' warning: usr/include/linux/rtnetlink.h:328: found __[us]{8,16,32,64} type without #include <linux/types.h> Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
| * headers_check fix: linux/nubus.hJaswinder Singh Rajput2009-01-311-0/+1
| | | | | | | | | | | | | | | | fix the following 'make headers_check' warning: usr/include/linux/nubus.h:232: found __[us]{8,16,32,64} type without #include <linux/types.h> Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
| * headers_check fix: video/uvesafb.hJaswinder Singh Rajput2009-01-311-0/+2
| | | | | | | | | | | | | | | | fix the following 'make headers_check' warning: usr/include/video/uvesafb.h:5: found __[us]{8,16,32,64} type without #include <linux/types.h> Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
| * headers_check fix: video/sisfb.hJaswinder Singh Rajput2009-01-311-1/+1
| | | | | | | | | | | | | | | | | | fix the following 'make headers_check' warnings: usr/include/video/sisfb.h:25: include of <linux/types.h> is preferred over <asm/types.h> usr/include/video/sisfb.h:78: found __[us]{8,16,32,64} type without #include <linux/types.h> Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
| * headers_check fix: sound/hdsp.hJaswinder Singh Rajput2009-01-311-0/+2
| | | | | | | | | | | | | | | | fix the following 'make headers_check' warning: usr/include/sound/hdsp.h:33: found __[us]{8,16,32,64} type without #include <linux/types.h> Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
| * headers_check fix: mtd/inftl-user.hJaswinder Singh Rajput2009-01-311-0/+2
| | | | | | | | | | | | | | | | fix the following 'make headers_check' warning: usr/include/mtd/inftl-user.h:61: found __[us]{8,16,32,64} type without #include <linux/types.h> Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
| * headers_check fix: linux/virtio_net.hJaswinder Singh Rajput2009-01-311-0/+1
| | | | | | | | | | | | | | | | fix the following 'make headers_check' warning: usr/include/linux/virtio_net.h:28: found __[us]{8,16,32,64} type without #include <linux/types.h> Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
| * headers_check fix: linux/virtio_console.hJaswinder Singh Rajput2009-01-311-0/+1
| | | | | | | | | | | | | | | | fix the following 'make headers_check' warning: usr/include/linux/virtio_console.h:15: found __[us]{8,16,32,64} type without #include <linux/types.h> Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
| * headers_check fix: linux/virtio_blk.hJaswinder Singh Rajput2009-01-311-0/+1
| | | | | | | | | | | | | | | | fix the following 'make headers_check' warning: usr/include/linux/virtio_blk.h:21: found __[us]{8,16,32,64} type without #include <linux/types.h> Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
| * headers_check fix: linux/videodev.hJaswinder Singh Rajput2009-01-311-0/+1
| | | | | | | | | | | | | | | | fix the following 'make headers_check' warning: usr/include/linux/videodev.h:53: found __[us]{8,16,32,64} type without #include <linux/types.h> Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
| * headers_check fix: linux/video_encoder.hJaswinder Singh Rajput2009-01-311-0/+2
| | | | | | | | | | | | | | | | fix the following 'make headers_check' warning: usr/include/linux/video_encoder.h:5: found __[us]{8,16,32,64} type without #include <linux/types.h> Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
| * headers_check fix: linux/video_decoder.hJaswinder Singh Rajput2009-01-311-0/+2
| | | | | | | | | | | | | | | | fix the following 'make headers_check' warning: usr/include/linux/video_decoder.h:7: found __[us]{8,16,32,64} type without #include <linux/types.h> Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
| * headers_check fix: linux/taskstats.hJaswinder Singh Rajput2009-01-311-0/+2
| | | | | | | | | | | | | | | | fix the following 'make headers_check' warning: usr/include/linux/taskstats.h:44: found __[us]{8,16,32,64} type without #include <linux/types.h> Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
| * headers_check fix: linux/synclink.hJaswinder Singh Rajput2009-01-311-0/+2
| | | | | | | | | | | | | | | | fix the following 'make headers_check' warning: usr/include/linux/synclink.h:209: found __[us]{8,16,32,64} type without #include <linux/types.h> Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
| * headers_check fix: linux/sound.hJaswinder Singh Rajput2009-01-311-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | fix the following 'make headers_check' warnings: usr/include/linux/sound.h:33: extern's make no sense in userspace usr/include/linux/sound.h:34: extern's make no sense in userspace usr/include/linux/sound.h:35: extern's make no sense in userspace usr/include/linux/sound.h:36: extern's make no sense in userspace usr/include/linux/sound.h:37: extern's make no sense in userspace usr/include/linux/sound.h:39: extern's make no sense in userspace usr/include/linux/sound.h:40: extern's make no sense in userspace usr/include/linux/sound.h:41: extern's make no sense in userspace usr/include/linux/sound.h:42: extern's make no sense in userspace Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
| * headers_check fix: linux/signalfd.hJaswinder Singh Rajput2009-01-311-0/+1
| | | | | | | | | | | | | | | | fix the following 'make headers_check' warning: usr/include/linux/signalfd.h:19: found __[us]{8,16,32,64} type without #include <linux/types.h> Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
| * headers_check fix: linux/random.hJaswinder Singh Rajput2009-01-311-0/+1
| | | | | | | | | | | | | | | | fix the following 'make headers_check' warning: usr/include/linux/random.h:39: found __[us]{8,16,32,64} type without #include <linux/types.h> Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
| * headers_check fix: linux/ppp_defs.hJaswinder Singh Rajput2009-01-311-0/+2
| | | | | | | | | | | | | | | | fix the following 'make headers_check' warning: usr/include/linux/ppp_defs.h:50: found __[us]{8,16,32,64} type without #include <linux/types.h> Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
| * headers_check fix: linux/pkt_sched.hJaswinder Singh Rajput2009-01-311-0/+2
| | | | | | | | | | | | | | | | fix the following 'make headers_check' warning: usr/include/linux/pkt_sched.h:32: found __[us]{8,16,32,64} type without #include <linux/types.h> Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
| * headers_check fix: linux/pkt_cls.hJaswinder Singh Rajput2009-01-311-0/+1
| | | | | | | | | | | | | | | | fix the following 'make headers_check' warning: linux/pkt_cls.h:122: found __[us]{8,16,32,64} type without #include <linux/types.h> Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
| * headers_check fix: linux/phonet.hJaswinder Singh Rajput2009-01-311-0/+2
| | | | | | | | | | | | | | | | fix the following 'make headers_check' warning: usr/include/linux/phonet.h:50: found __[us]{8,16,32,64} type without #include <linux/types.h> Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
| * headers_check fix: linux/nfs_idmap.hJaswinder Singh Rajput2009-01-311-0/+2
| | | | | | | | | | | | | | | | fix the following 'make headers_check' warning: usr/include/linux/nfs_idmap.h:55: found __[us]{8,16,32,64} type without #include <linux/types.h> Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
| * headers_check fix: linux/neighbour.hJaswinder Singh Rajput2009-01-311-0/+1
| | | | | | | | | | | | | | | | fix the following 'make headers_check' warning: usr/include/linux/neighbour.h:8: found __[us]{8,16,32,64} type without #include <linux/types.h> Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
| * headers_check fix: linux/msdos_fs.hJaswinder Singh Rajput2009-01-311-0/+1
| | | | | | | | | | | | | | | | fix the following 'make headers_check' warning: usr/include/linux/msdos_fs.h:100: found __[us]{8,16,32,64} type without #include <linux/types.h> Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
| * headers_check fix: linux/minix_fs.hJaswinder Singh Rajput2009-01-311-0/+1
| | | | | | | | | | | | | | | | fix the following 'make headers_check' warning: usr/include/linux/minix_fs.h:34: found __[us]{8,16,32,64} type without #include <linux/types.h> Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
| * headers_check fix: linux/irda.hJaswinder Singh Rajput2009-01-311-0/+2
| | | | | | | | | | | | | | | | fix the following 'make headers_check' warning: usr/include/linux/irda.h:127: found __[us]{8,16,32,64} type without #include <linux/types.h> Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
| * headers_check fix: linux/ipx.hJaswinder Singh Rajput2009-01-301-0/+1
| | | | | | | | | | | | | | | | fix the following 'make headers_check' warning: usr/include/linux/ipx.h:13: found __[us]{8,16,32,64} type without #include <linux/types.h> Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
| * headers_check fix: linux/ipv6_route.hJaswinder Singh Rajput2009-01-301-0/+2
| | | | | | | | | | | | | | | | fix the following 'make headers_check' warning: usr/include/linux/ipv6_route.h:42: found __[us]{8,16,32,64} type without #include <linux/types.h> Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
| * headers_check fix: linux/ipv6.hJaswinder Singh Rajput2009-01-301-0/+1
| | | | | | | | | | | | | | | | fix the following 'make headers_check' warning: usr/include/linux/ipv6.h:26: found __[us]{8,16,32,64} type without #include <linux/types.h> Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
| * headers_check fix: linux/ip6_tunnel.hJaswinder Singh Rajput2009-01-301-0/+2
| | | | | | | | | | | | | | | | fix the following 'make headers_check' warning: include/linux/ip6_tunnel.h:21: found __[us]{8,16,32,64} type without #include <linux/types.h> Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
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