- 30 6月, 2011 8 次提交
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由 Ondrej Zary 提交于
Add ISA PNP IDs of the following cards to aha152x driver: AVA-1502 AVA-1505 AHA-1510 AVA-1515 AHA-1520 AHA-1522 AHA-1530 AHA-1532 AIC-6360 (list from SCSI.INF file) This makes my AHA-1530P card (has ADP3015 ID) work automatically. Signed-off-by: NOndrej Zary <linux@rainbow-software.org> Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>
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由 Werner Fink 提交于
This patch resulted from the discussion at https://bugzilla.novell.com/show_bug.cgi?id=679277, https://bugzilla.novell.com/show_bug.cgi?id=681840 . Signed-off-by: NWerner Fink <werner@novell.com> Signed-off-by: NAnkit Jain <jankit@suse.de> Cc: stable@kernel.org Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>
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由 Douglas Gilbert 提交于
Noticed that when the sysfs interface of the SCSI SES driver was used to request a fault indication the LED flashed but the buzzer didn't sound. So it was doing what REQUEST IDENT (locate) should do. Changelog: - fix the setting of REQUEST FAULT for the device slot and array device slot elements in the enclosure control diagnostic page - note the potentially defective code that reads the FAULT SENSED and FAULT REQUESTED bits from the enclosure status diagnostic page The attached patch is against git/scsi-misc-2.6 Signed-off-by: NDouglas Gilbert <dgilbert@interlog.com> Cc: stable@kernel.org Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>
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由 Geert Uytterhoeven 提交于
commit 8ce7955a ("[SCSI] atari_NCR5380: update_timeout removal") removed all users, but not the avtual variable. Suggested-by: NBen Hutchings <ben@decadent.org.uk> Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>
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由 Geert Uytterhoeven 提交于
Using the current NEXT() macro for both lvalues and rvalues gives: In file included from drivers/scsi/sun3_scsi.c:623: drivers/scsi/sun3_NCR5380.c: In function ‘NCR5380_queue_command_lck’: drivers/scsi/sun3_NCR5380.c:993: warning: assignment discards qualifiers from pointer target type drivers/scsi/sun3_NCR5380.c: In function ‘NCR5380_main’: drivers/scsi/sun3_NCR5380.c:1147: warning: assignment discards qualifiers from pointer target type drivers/scsi/sun3_NCR5380.c: In function ‘NCR5380_information_transfer’: drivers/scsi/sun3_NCR5380.c:2277: warning: assignment discards qualifiers from pointer target type drivers/scsi/sun3_NCR5380.c:2333: warning: assignment discards qualifiers from pointer target type Change NEXT() to operate on rvalues only(), and introduce SET_NEXT() to operate on lvalues, as is done in drivers/scsi/atari_NCR5380.c. Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>
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由 Bhanu Prakash Gollapudi 提交于
Signed-off-by: NBhanu Prakash Gollapudi <bprakash@broadcom.com> Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>
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由 Bhanu Prakash Gollapudi 提交于
Signed-off-by: NBhanu Prakash Gollapudi <bprakash@broadcom.com> Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>
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由 Bhanu Prakash Gollapudi 提交于
Deleting NPIV port causes a kernel panic when the NPIV port is in the same zone as the physical port and shares the same LUN. This happens due to the fact that vport destroy and unsolicited ELS are scheduled to run on the same workqueue, and vport destroy destroys the lport and the unsolicited ELS tries to access the invalid lport. This patch fixes this issue by maintaining a list of valid lports and verifying if the lport is valid or not before accessing it. Signed-off-by: NBhanu Prakash Gollapudi <bprakash@broadcom.com> Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>
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- 29 6月, 2011 12 次提交
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由 Bhanu Prakash Gollapudi 提交于
Do not set io_req->sc_cmd to NULL until bnx2fc_unmap_sg_list() is called to enable it to unmap the DMA mappings. Signed-off-by: NBhanu Prakash Gollapudi <bprakash@broadcom.com> Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>
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由 Bhanu Prakash Gollapudi 提交于
NIC partitioned interfaces reports the speed of 2500 which was not handled by the driver. Signed-off-by: NBhanu Prakash Gollapudi <bprakash@broadcom.com> Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>
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由 Stephen Boyd 提交于
Enabling DEBUG_STRICT_USER_COPY_CHECKS causes the following warning: In file included from arch/x86/include/asm/uaccess.h:573, from include/linux/uaccess.h:5, from include/linux/highmem.h:7, from include/linux/pagemap.h:10, from include/linux/blkdev.h:12, from drivers/scsi/lpfc/lpfc_debugfs.c:21: In function 'copy_from_user': arch/x86/include/asm/uaccess_64.h:65: warning: call to 'copy_from_user_overflow' declared with attribute warning: copy_from_user() buffer size is not provably correct presumably due to buf_size being signed causing GCC to fail to see that buf_size can't become negative. Signed-off-by: NStephen Boyd <sboyd@codeaurora.org> Acked-by: NJames Smart <james.smart@emulex.com> Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/keithp/linux-2.6由 Linus Torvalds 提交于
* 'drm-intel-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/keithp/linux-2.6: drm/i915: Use chipset-specific irq installers drm/i915: forcewake fix after reset drm/i915: add Ivy Bridge page flip support drm/i915: split page flip queueing into per-chipset functions
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由 Linus Torvalds 提交于
Merge branch 'driver-core-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6 * 'driver-core-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6: Connector: Correctly set the error code in case of success when dispatching receive callbacks Connector: Set the CN_NETLINK_USERS correctly pti: PTI semantics fix in pti_tty_cleanup. pti: ENXIO error case memory leak PTI fix. pti: double-free security PTI fix drivers:misc: ti-st: fix skipping of change remote baud drivers/base/platform.c: don't mark platform_device_register_resndata() as __init_or_module st_kim: Handle case of no device found for ID 0 firmware: fix GOOGLE_SMI kconfig dependency warning
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6由 Linus Torvalds 提交于
* 'usb-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: MAINTAINERS: add myself as maintainer of USB/IP usb: r8a66597-hcd: fix cannot detect low/full speed device USB: ehci-ath79: fix a NULL pointer dereference USB: Add new FT232H chip to drivers/usb/serial/ftdi_sio.c usb/isp1760: Fix bug preventing the unlinking of control urbs USB: Fix up URB error codes to reflect implementation. xhci: Always set urb->status to zero for isoc endpoints. xhci: Add reset on resume quirk for asrock p67 host xHCI 1.0: Incompatible Device Error USB: don't let errors prevent system sleep USB: don't let the hub driver prevent system sleep USB: change maintainership of ohci-hcd and ehci-hcd xHCI 1.0: Force Stopped Event(FSE) xhci: Don't warn about zeroed bMaxBurst descriptor field. USB: Free bandwidth when usb_disable_device is called. xhci: Reject double add of active endpoints. USB: TI 3410/5052 USB Serial Driver: Fix mem leak when firmware is too big. usb: musb: gadget: clear TXPKTRDY flag when set FLUSHFIFO usb: musb: host: compare status for negative error values
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6由 Linus Torvalds 提交于
* 'tty-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6: serial: bcm63xx_uart: fix irq storm after rx fifo overrun. amba pl011: platform data for reg lockup and glitch v2 amba pl011: workaround for uart registers lockup tty: n_gsm: improper skb_pull() use was leaking framed data tty: n_gsm: Fixed logic to decode break signal from modem status TTY: ntty, add one more sanity check TTY: ldisc, do not close until there are readers 8250: Fix capabilities when changing the port type 8250_pci: Fix missing const from merges ARM: SAMSUNG: serial: Fix on handling of one clock source for UART serial: ioremap warning fix for jsm driver. 8250_pci: add -ENODEV code for Intel EG20T PCH
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6由 Linus Torvalds 提交于
* 'staging-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6: Staging: comedi: fix build breakages on some platforms Staging: brcm80211: disable drivers except for X86 or MIPS platforms Staging: brcm80211: disable drivers for PPC platforms Staging: iio: Make IIO depend on GENERIC_HARDIRQS Staging: mei: fix suspend failure Staging: fix iio builds when IIO_RING_BUFFER is not enabled Staging: Comedi: Build only on arches providing PAGE_KERNEL_NOCACHE Staging: fix more iio builds when IIO_RING_BUFFER is not enabled
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git://neil.brown.name/md由 Linus Torvalds 提交于
* 'for-linus' of git://neil.brown.name/md: md: avoid endless recovery loop when waiting for fail device to complete.
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由 Chris Wilson 提交于
Konstantin Belousov pointed out that 4697995b replaced the generic i915_driver_irq_*install() functions with chipset specific routines accessible only through driver->irq_*install(). So update the sanity check in i915_request_wait() to match. Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk> Signed-off-by: NKeith Packard <keithp@keithp.com>
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由 Ben Widawsky 提交于
The failure is as follows: 1. Userspace gets forcewake lock, lock count >=1 2. GPU hang/reset occurs (forcewake bit is reset) 3. count is now incorrect The failure can only occur when using the forcewake userspace lock. This has the unfortunate consequence of messing up the driver as well as userspace, unless userspace closes the debugfs file, the kernel will never end up waking the GT since the refcount will be > 1. The solution is to try to recover the correct forcewake state based on the refcount. There is a period of time where userspace reads/writes may occur after the reset, before the GT has been forcewaked. The interface was never designed to be a perfect solution for userspace reads/writes, and the kernel portion is fixed by this patch. Suggested-by: NChris Wilson <chris@chris-wilson.co.uk> Signed-off-by: NBen Widawsky <ben@bwidawsk.net> Signed-off-by: NKeith Packard <keithp@keithp.com>
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由 Vasiliy Kulikov 提交于
/proc/PID/io may be used for gathering private information. E.g. for openssh and vsftpd daemons wchars/rchars may be used to learn the precise password length. Restrict it to processes being able to ptrace the target process. ptrace_may_access() is needed to prevent keeping open file descriptor of "io" file, executing setuid binary and gathering io information of the setuid'ed process. Signed-off-by: NVasiliy Kulikov <segoon@openwall.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 28 6月, 2011 20 次提交
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由 NeilBrown 提交于
If a device fails in a way that causes pending request to take a while to complete, md will not be able to immediately remove it from the array in remove_and_add_spares. It will then incorrectly look like a spare device and md will try to recover it even though it is failed. This leads to a recovery process starting and instantly aborting over and over again. We should check if the device is faulty before considering it to be a spare. This will avoid trying to start a recovery that cannot proceed. This bug was introduced in 2.6.26 so that patch is suitable for any kernel since then. Cc: stable@kernel.org Reported-by: NJim Paradis <james.paradis@stratus.com> Signed-off-by: NNeilBrown <neilb@suse.de>
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由 Linus Torvalds 提交于
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由 Hugh Dickins 提交于
When auditing the locking in i915_gem.c (for a prospective change which I then abandoned), I noticed two places where struct_mutex is not held across GEM object manipulations that would usually require it. Since one is in initial setup and the other in driver unload, I'm guessing the mutex is not required for either; but post a patch in case it is. Signed-off-by: NHugh Dickins <hughd@google.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Keith Packard <keithp@keithp.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Hugh Dickins 提交于
The interface to ->truncate_range is changing very slightly: once "tmpfs: take control of its truncate_range" has been applied, this can be applied. For now there is only a slight inefficiency while this remains unapplied, but it will soon become essential for managing shmem's use of swap. Change i915_gem_object_truncate() to use shmem_truncate_range() directly: which should also spare i915 later change if we switch from inode_operations->truncate_range to file_operations->fallocate. Signed-off-by: NHugh Dickins <hughd@google.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Keith Packard <keithp@keithp.com> Cc: Dave Airlie <airlied@redhat.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Hugh Dickins 提交于
Soon tmpfs will stop supporting ->readpage and read_cache_page_gfp(): once "tmpfs: add shmem_read_mapping_page_gfp" has been applied, this patch can be applied to ease the transition. Make i915_gem_object_get_pages_gtt() use shmem_read_mapping_page_gfp() in the one place it's needed; elsewhere use shmem_read_mapping_page(), with the mapping's gfp_mask properly initialized. Forget about __GFP_COLD: since tmpfs initializes its pages with memset, asking for a cold page is counter-productive. Include linux/shmem_fs.h also in drm_gem.c: with shmem_file_setup() now declared there too, we shall remove the prototype from linux/mm.h later. Signed-off-by: NHugh Dickins <hughd@google.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Keith Packard <keithp@keithp.com> Cc: Dave Airlie <airlied@redhat.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Hugh Dickins 提交于
Soon tmpfs will stop supporting ->readpage and read_mapping_page(): once "tmpfs: add shmem_read_mapping_page_gfp" has been applied, this patch can be applied to ease the transition. ttm_tt_swapin() and ttm_tt_swapout() use shmem_read_mapping_page() in place of read_mapping_page(), since their swap_space has been created with shmem_file_setup(). Signed-off-by: NHugh Dickins <hughd@google.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: Thomas Hellstrom <thellstrom@vmware.com> Cc: Dave Airlie <airlied@redhat.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Andrew Morton 提交于
Fis the warning drivers/tty/serial/8250_pci.c:1457: warning: initialization from incompatible pointer type Cc: Greg KH <greg@kroah.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Ralf Baechle 提交于
Fix this section mismatch: WARNING: drivers/misc/ioc4.o(.data+0x144): Section mismatch in reference from the variable ioc4_load_modules_work to the function .devinit.text:ioc4_load_modules() The variable ioc4_load_modules_work references the function __devinit ioc4_load_modules() If the reference is valid then annotate the variable with __init* or __refdata (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console This one is potentially fatal; by the time ioc4_load_modules is invoked it may already have been freed. For that reason ioc4_load_modules_work can't be turned to __devinitdata but also because it's referenced in ioc4_exit. Signed-off-by: NRalf Baechle <ralf@linux-mips.org> Acked-by: NBrent Casavant <bcasavan@sgi.com> Cc: Tejun Heo <tj@kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Ralf Baechle 提交于
Fix this section mismatch: WARNING: drivers/leds/leds-lp5523.o(.text+0x12f4): Section mismatch in reference from the function lp5523_probe() to the function .init.text:lp5523_init_led() The function lp5523_probe() references the function __init lp5523_init_led(). This is often because lp5523_probe lacks a __init annotation or the annotation of lp5523_init_led is wrong. Fixing this one triggers one more mismatch, fix that one as well. Signed-off-by: NRalf Baechle <ralf@linux-mips.org> Cc: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Ralf Baechle 提交于
Fix this section mismatch: WARNING: drivers/leds/leds-lp5521.o(.text+0xf2c): Section mismatch in reference from the function lp5521_probe() to the function .init.text:lp5521_init_led() The function lp5521_probe() references the function __init lp5521_init_led(). This is often because lp5521_probe lacks a __init annotation or the annotation of lp5521_init_led is wrong. Fixing this mismatch triggers one more mismatch, fix that one as well. Signed-off-by: NRalf Baechle <ralf@linux-mips.org> Cc: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 KAMEZAWA Hiroyuki 提交于
Commit d149e3b2 ("memcg: add the soft_limit reclaim in global direct reclaim") adds a softlimit hook to shrink_zones(). By this, soft limit is called as try_to_free_pages() do_try_to_free_pages() shrink_zones() mem_cgroup_soft_limit_reclaim() Then, direct reclaim is memcg softlimit hint aware, now. But, the memory cgroup's "limit" path can call softlimit shrinker. try_to_free_mem_cgroup_pages() do_try_to_free_pages() shrink_zones() mem_cgroup_soft_limit_reclaim() This will cause a global reclaim when a memcg hits limit. This is bug. soft_limit_reclaim() should be called when scanning_global_lru(sc) == true. And the commit adds a variable "total_scanned" for counting softlimit scanned pages....it's not "total". This patch removes the variable and update sc->nr_scanned instead of it. This will affect shrink_slab()'s scan condition but, global LRU is scanned by softlimit and I think this change makes sense. TODO: avoid too much scanning of a zone when softlimit did enough work. Signed-off-by: NKAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp> Cc: Ying Han <yinghan@google.com> Cc: Michal Hocko <mhocko@suse.cz> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Vasiliy Kulikov 提交于
Currently a single process may register exit handlers unlimited times. It may lead to a bloated listeners chain and very slow process terminations. Eg after 10KK sent TASKSTATS_CMD_ATTR_REGISTER_CPUMASKs ~300 Mb of kernel memory is stolen for the handlers chain and "time id" shows 2-7 seconds instead of normal 0.003. It makes it possible to exhaust all kernel memory and to eat much of CPU time by triggerring numerous exits on a single CPU. The patch limits the number of times a single process may register itself on a single CPU to one. One little issue is kept unfixed - as taskstats_exit() is called before exit_files() in do_exit(), the orphaned listener entry (if it was not explicitly deregistered) is kept until the next someone's exit() and implicit deregistration in send_cpu_listeners(). So, if a process registered itself as a listener exits and the next spawned process gets the same pid, it would inherit taskstats attributes. Signed-off-by: NVasiliy Kulikov <segooon@gmail.com> Cc: Balbir Singh <bsingharora@gmail.com> Cc: <stable@kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jan Kara 提交于
Under heavy memory and filesystem load, users observe the assertion mapping->nrpages == 0 in end_writeback() trigger. This can be caused by page reclaim reclaiming the last page from a mapping in the following race: CPU0 CPU1 ... shrink_page_list() __remove_mapping() __delete_from_page_cache() radix_tree_delete() evict_inode() truncate_inode_pages() truncate_inode_pages_range() pagevec_lookup() - finds nothing end_writeback() mapping->nrpages != 0 -> BUG page->mapping = NULL mapping->nrpages-- Fix the problem by doing a reliable check of mapping->nrpages under mapping->tree_lock in end_writeback(). Analyzed by Jay <jinshan.xiong@whamcloud.com>, lost in LKML, and dug out by Miklos Szeredi <mszeredi@suse.de>. Cc: Jay <jinshan.xiong@whamcloud.com> Cc: Miklos Szeredi <mszeredi@suse.de> Signed-off-by: NJan Kara <jack@suse.cz> Cc: <stable@kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Peter Zijlstra 提交于
We cannot take a mutex while holding a spinlock, so flip the order and fix the locking documentation. Signed-off-by: NPeter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: NAndi Kleen <ak@linux.intel.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Josh Hunt 提交于
We observed the crash point count going negative in cases where the crash point is hit multiple times before the check of "count == 0" is done. Because of this we never call lkdtm_do_action(). This patch just adds a spinlock to protect count. Reported-by: NTapan Dhimant <tdhimant@akamai.com> Signed-off-by: NJosh Hunt <johunt@akamai.com> Acked-by: NAnkita Garg <ankita@in.ibm.com> Cc: <stable@kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Chris Metcalf 提交于
This is required for tilegx to be able to use the compat unistd.h header where compat_sys_sendmmsg() is now mentioned. Signed-off-by: NChris Metcalf <cmetcalf@tilera.com> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Bob Liu 提交于
romfs_get_unmapped_area() checks argument `len' without considering PAGE_ALIGN which will cause do_mmap_pgoff() return -EINVAL error after commit f67d9b15 ("nommu: add page_align to mmap"). Fix the check by changing it in same way ramfs_nommu_get_unmapped_area() was changed in ramfs/file-nommu.c. Signed-off-by: NBob Liu <lliubbo@gmail.com> Cc: David Howells <dhowells@redhat.com> Cc: Paul Mundt <lethal@linux-sh.org> Acked-by: NGreg Ungerer <gerg@snapgear.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Richard Weinberger 提交于
To make SLUB work on UML we need this_cpu_cmpxchg from asm-generic/percpu.h. Signed-off-by: NRichard Weinberger <richard@nod.at> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Priyanka Jain 提交于
PT7C4338 chip is being manufactured by Pericom Technology Inc. It is a serial real-time clock which provides: 1) Low-power clock/calendar. 2) Programmable square-wave output. It has 56 bytes of nonvolatile RAM. Its register set is same as that of rtc device: DS1307. Signed-off-by: NPriyanka Jain <Priyanka.Jain@freescale.com> Acked-by: NTimur Tabi <timur@freescale.com> Reviewed-by: NWolfram Sang <w.sang@pengutronix.de> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Hugh Dickins 提交于
Although it is used (by i915) on nothing but tmpfs, read_cache_page_gfp() is unsuited to tmpfs, because it inserts a page into pagecache before calling the filesystem's ->readpage: tmpfs may have pages in swapcache which only it knows how to locate and switch to filecache. At present tmpfs provides a ->readpage method, and copes with this by copying pages; but soon we can simplify it by removing its ->readpage. Provide shmem_read_mapping_page_gfp() now, ready for that transition, Export shmem_read_mapping_page_gfp() and add it to list in shmem_fs.h, with shmem_read_mapping_page() inline for the common mapping_gfp case. (shmem_read_mapping_page_gfp or shmem_read_cache_page_gfp? Generally the read_mapping_page functions use the mapping's ->readpage, and the read_cache_page functions use the supplied filler, so I think read_cache_page_gfp was slightly misnamed.) Signed-off-by: NHugh Dickins <hughd@google.com> Cc: Christoph Hellwig <hch@infradead.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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