- 10 Sep, 2010 39 commits
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Mel Gorman authored
When allocating a page, the system uses NR_FREE_PAGES counters to determine if watermarks would remain intact after the allocation was made. This check is made without interrupts disabled or the zone lock held and so is race-prone by nature. Unfortunately, when pages are being freed in batch, the counters are updated before the pages are added on the list. During this window, the counters are misleading as the pages do not exist yet. When under significant pressure on systems with large numbers of CPUs, it's possible for processes to make progress even though they should have been stalled. This is particularly problematic if a number of the processes are using GFP_ATOMIC as the min watermark can be accidentally breached and in extreme cases, the system can livelock. This patch updates the counters after the pages have been added to the list. This makes the allocator more cautious with respect to preserving the watermarks and mitigates livelock possibilities. [akpm@linux-foundation.org: avoid modifying incoming args] Signed-off-by:
Mel Gorman <mel@csn.ul.ie> Reviewed-by:
Rik van Riel <riel@redhat.com> Reviewed-by:
Minchan Kim <minchan.kim@gmail.com> Reviewed-by:
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Reviewed-by:
Christoph Lameter <cl@linux.com> Reviewed-by:
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Acked-by:
Johannes Weiner <hannes@cmpxchg.org> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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KAMEZAWA Hiroyuki authored
refresh_zone_stat_thresholds() calculates parameter based on the number of online cpus. It's called at cpu offlining but needs to be called at onlining, too. Signed-off-by:
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James Bottomley authored
O_NONBLOCK on parisc has a dual value: #define O_NONBLOCK 000200004 /* HPUX has separate NDELAY & NONBLOCK */ It is caught by the O_* bits uniqueness check and leads to a parisc compile error. The fix would be to take O_NONBLOCK out. Signed-off-by:
Wu Fengguang <fengguang.wu@intel.com> Signed-off-by:
James Bottomley <James.Bottomley@suse.de> Cc: Jamie Lokier <jamie@shareable.org> Signed-off-by:
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Hugh Dickins authored
Tests with recent firmware on Intel X25-M 80GB and OCZ Vertex 60GB SSDs show a shift since I last tested in December: in part because of firmware updates, in part because of the necessary move from barriers to awaiting completion at the block layer. While discard at swapon still shows as slightly beneficial on both, discarding 1MB swap cluster when allocating is now disadvanteous: adds 25% overhead on Intel, adds 230% on OCZ (YMMV). Surrender: discard as presently implemented is more hindrance than help for swap; but might prove useful on other devices, or with improvements. So continue to do the discard at swapon, but make discard while swapping conditional on a SWAP_FLAG_DISCARD to sys_swapon() (which has been using only the lower 16 bits of int flags). We can add a --discard or -d to swapon(8), and a "discard" to swap in /etc/fstab: matching the mount option for btrfs, ext4, fat, gfs2, nilfs2. Signed-off-by:
Hugh Dickins <hughd@google.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Nigel Cunningham <nigel@tuxonice.net> Cc: Tejun Heo <tj@kernel.org> Cc: Jens Axboe <jaxboe@fusionio.com> Cc: James Bottomley <James.Bottomley@hansenpartnership.com> Cc: "Martin K. Petersen" <martin.petersen@oracle.com> Cc: <stable@kernel.org> Signed-off-by:
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Christoph Hellwig authored
The swap code already uses synchronous discards, no need to add I/O barriers. This fixes the worst of the terrible slowdown in swap allocation for hibernation, reported on 2.6.35 by Nigel Cunningham; but does not entirely eliminate that regression. [tj@kernel.org: superflous newlines removed] Signed-off-by:
Christoph Hellwig <hch@lst.de> Tested-by:
Nigel Cunningham <nigel@tuxonice.net> Signed-off-by:
Tejun Heo <tj@kernel.org> Signed-off-by:
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Hugh Dickins authored
Move the hibernation check from scan_swap_map() into try_to_free_swap(): to catch not only the common case when hibernation's allocation itself triggers swap reuse, but also the less likely case when concurrent page reclaim (shrink_page_list) might happen to try_to_free_swap from a page. Hibernation already clears __GFP_IO from the gfp_allowed_mask, to stop reclaim from going to swap: check that to prevent swap reuse too. Signed-off-by:
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Hugh Dickins authored
Please revert 2.6.36-rc commit d2997b10 "hibernation: freeze swap at hibernation". It complicated matters by adding a second swap allocation path, just for hibernation; without in any way fixing the issue that it was intended to address - page reclaim after fixing the hibernation image might free swap from a page already imaged as swapcache, letting its swap be reallocated to store a different page of the image: resulting in data corruption if the imaged page were freed as clean then swapped back in. Pages freed to si->swap_map were still in danger of being reallocated by the alternative allocation path. I guess it inadvertently fixed slow SSD swap allocation for hibernation, as reported by Nigel Cunningham: by missing out the discards that occur on the usual swap allocation path; but that was unintentional, and needs a separate fix. Signed-off-by:
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Gary King authored
I have been seeing problems on Tegra 2 (ARMv7 SMP) systems with HIGHMEM enabled on 2.6.35 (plus some patches targetted at 2.6.36 to perform cache maintenance lazily), and the root cause appears to be that the mm bouncing code is calling flush_dcache_page before it copies the bounce buffer into the bio. The bounced page needs to be flushed after data is copied into it, to ensure that architecture implementations can synchronize instruction and data caches if necessary. Signed-off-by:
Gary King <gking@nvidia.com> Cc: Tejun Heo <tj@kernel.org> Cc: Russell King <rmk@arm.linux.org.uk> Acked-by:
Jens Axboe <axboe@kernel.dk> Cc: <stable@kernel.org> Signed-off-by:
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Linus Walleij authored
It was a mistake to mark the PL031 IRQ as shared (for the U8500), we misread the datasheet. Get rid of this. Signed-off-by:
Linus Walleij <linus.walleij@stericsson.com> Cc: Jonas Aberg <jonas.aberg@stericsson.com> Cc: Mian Yousaf Kaukab <mian.yousaf.kaukab@stericsson.com> Acked-by:
Alessandro Zummo <a.zummo@towertech.it> Signed-off-by:
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Wolfram Sang authored
Because no one dared to remove it so far, let's keep the entry correct, at least. Signed-off-by:
Wolfram Sang <w.sang@pengutronix.de> Acked-by:
Mike Frysinger <vapier@gentoo.org> Cc: Paul Gortmaker <p_gortmaker@yahoo.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by:
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David Brownell authored
There's been some recent confusion about error checking GPIO numbers. briefly, it should be handled mostly during setup, when gpio_request() is called, and NEVER by expectig gpio_is_valid to report more than never-usable GPIO numbers. [akpm@linux-foundation.org: terminate unterminated comment] Signed-off-by:
David Brownell <dbrownell@users.sourceforge.net> Cc: Eric Miao" <eric.y.miao@gmail.com> Cc: "Ryan Mallon" <ryan@bluewatersys.com> Signed-off-by:
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Gregory Bean authored
Replace the arbitrary software-reset call from the device-probe method, because: - It is defective. To work correctly, it should be two byte writes, not a single word write. As it stands, it does nothing. - Some devices with sx150x expanders installed have their NRESET pins ganged on the same line, so resetting one causes the others to reset - not a nice thing to do arbitrarily! - The probe, usually taking place at boot, implies a recent hard-reset, so a software reset at this point is just a waste of energy anyway. Therefore, make it optional, defaulting to off, as this will match the common case of probing at powerup and also matches the current broken no-op behavior. Signed-off-by:
Gregory Bean <gbean@codeaurora.org> Reviewed-by:
Jean Delvare <khali@linux-fr.org> Signed-off-by:
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KAMEZAWA Hiroyuki authored
next_active_pageblock() is for finding next _used_ freeblock. It skips several blocks when it finds there are a chunk of free pages lager than pageblock. But it has 2 bugs. 1. We have no lock. page_order(page) - pageblock_order can be minus. 2. pageblocks_stride += is wrong. it should skip page_order(p) of pages. Signed-off-by:
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Minchan Kim authored
Iram reported that compaction's too_many_isolated() loops forever. (http://www.spinics.net/lists/linux-mm/msg08123.html) The meminfo when the situation happened was inactive anon is zero. That's because the system has no memory pressure until then. While all anon pages were in the active lru, compaction could select active lru as well as inactive lru. That's a different thing from vmscan's isolated. So we has been two too_many_isolated. While compaction can isolate pages in both active and inactive, current implementation of too_many_isolated only considers inactive. It made Iram's problem. This patch handles active and inactive fairly. That's because we can't expect where from and how many compaction would isolated pages. This patch changes (nr_isolated > nr_inactive) with nr_isolated > (nr_active + nr_inactive) / 2. Signed-off-by:
Iram Shahzad <iram.shahzad@jp.fujitsu.com> Acked-by:
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Jerome Marchand authored
gid_t is a unsigned int. If group_info contains a gid greater than MAX_INT, groups_search() function may look on the wrong side of the search tree. This solves some unfair "permission denied" problems. Signed-off-by:
Jerome Marchand <jmarchan@redhat.com> Cc: <stable@kernel.org> Signed-off-by:
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Ira W. Snyder authored
The slab.h header is required to use the kmalloc() family of functions. Due to recent kernel changes, this header must be directly included by code that calls into the memory allocator. Without this patch, any code which includes this header fails to build. Signed-off-by:
Ira W. Snyder <iws@ovro.caltech.edu> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by:
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Atsushi Nemoto authored
Commit b485fe5e ("rtc/m41t80: use rtc_valid_tm() to check returned tm") added rtc_valid_tm to m41t80_rtc_read_alarm() but it was wrong while the t->time does not contain complete date/time. This patch also fixes a warning: warning: passing argument 1 of 'rtc_valid_tm' from incompatible pointer type Signed-off-by:
Atsushi Nemoto <anemo@mba.ocn.ne.jp> Cc: Wan ZongShun <mcuos.com@gmail.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by:
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Jan Sembera authored
Commit 74641f58 ("alpha: binfmt_aout fix") (May 2009) introduced a regression - binfmt_misc is now consulted after binfmt_elf, which will unfortunately break ia32el. ia32 ELF binaries on ia64 used to be matched using binfmt_misc and executed using wrapper. As 32bit binaries are now matched by binfmt_elf before bindmt_misc kicks in, the wrapper is ignored. The fix increases precedence of binfmt_misc to the original state. Signed-off-by:
Jan Sembera <jsembera@suse.cz> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Al Viro <viro@ZenIV.linux.org.uk> Cc: Richard Henderson <rth@twiddle.net Cc: <stable@kernel.org> [2.6.everything.x] Signed-off-by:
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Andrea Arcangeli authored
COMPACTION enables MIGRATION, but MIGRATION spawns a warning if numa or memhotplug aren't selected. However MIGRATION doesn't depend on them. I guess it's just trying to be strict doing a double check on who's enabling it, but it doesn't know that compaction also enables MIGRATION. Signed-off-by:
Andrea Arcangeli <aarcange@redhat.com> Acked-by:
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Andrea Arcangeli authored
The pte_same check is reliable only if the swap entry remains pinned (by the page lock on swapcache). We've also to ensure the swapcache isn't removed before we take the lock as try_to_free_swap won't care about the page pin. One of the possible impacts of this patch is that a KSM-shared page can point to the anon_vma of another process, which could exit before the page is freed. This can leave a page with a pointer to a recycled anon_vma object, or worse, a pointer to something that is no longer an anon_vma. [riel@redhat.com: changelog help] Signed-off-by:
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Julia Lawall authored
Move the second if (reg & ...) test into the branch indicated by its indentation. The test was previously always executed after the if containing that branch, but it was always false unless the if branch was taken. The semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r disable braces4@ position p1,p2; statement S1,S2; @@ ( if (...) { ... } | if (...) S1@p1 S2@p2 ) @script:python@ p1 << r.p1; p2 << r.p2; @@ if (p1[0].column == p2[0].column): cocci.print_main("branch",p1) cocci.print_secs("after",p2) // </smpl> Signed-off-by:
Julia Lawall <julia@diku.dk> Signed-off-by:
Chris Ball <cjb@laptop.org> Cc: Pavel Pisa <ppisa@pikron.com> Cc: <linux-mmc@vger.kernel.org> Signed-off-by:
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Ethan Du authored
If suspend called when kmmcd is doing host->ops->disable, as kmmcd already increased host->en_dis_recurs to 1, the mmc_host_enable in suspend function will return directly without increase the nesting_cnt, which will cause the followed register access carried out to the disabled host. mmc_suspend_host will enable host itself. No need to enable host before it. Also works on kmmcd will get flushed in mmc_suspend_host, enable host after it will be safe. So make the mmc_host_enable after it. [cjb: rebase against current Linus] Signed-off-by:
Ethan <ethan.too@gmail.com> Signed-off-by:
Adrian Hunter <adrian.hunter@nokia.com> Acked-by:
Madhusudhan Chikkature <madhu.cr@ti.com> Cc: <linux-mmc@vger.kernel.org> Signed-off-by:
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Marc Kleine-Budde authored
Fix the following error: at91_mci.c: In function 'at91_mci_sg_to_dma': at91_mci.c:236: error: implicit declaration of function 'kmap_atomic' at91_mci.c:236: error: 'KM_BIO_SRC_IRQ' undeclared (first use in this function) at91_mci.c:236: error: (Each undeclared identifier is reported only once at91_mci.c:236: error: for each function it appears in.) at91_mci.c:236: warning: assignment makes pointer from integer without a cast at91_mci.c:252: error: implicit declaration of function 'kunmap_atomic' at91_mci.c: In function 'at91_mci_post_dma_read': at91_mci.c:302: error: 'KM_BIO_SRC_IRQ' undeclared (first use in this function) at91_mci.c:302: warning: assignment makes pointer from integer without a cast at91_mci.c:317: error: implicit declaration of function 'flush_kernel_dcache_page' Signed-off-by:
Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by:
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Sergio Aguirre authored
This fixes the following warning: drivers/mmc/host/omap_hsmmc.c: In function 'omap_hsmmc_suspend': drivers/mmc/host/omap_hsmmc.c:2275: warning: unused variable 'state' Introduced by commit ID: commit 1a13f8fa Author: Matt Fleming <matt@console-pimps.org> Date: Wed May 26 14:42:08 2010 -0700 mmc: remove the "state" argument to mmc_suspend_host() The unique usage of this var was removed there, and missed removing the respective declaration aswell. Signed-off-by:
Sergio Aguirre <saaguirre@ti.com> Signed-off-by:
Matt Fleming <matt@console-pimps.org> Cc: Madhusudhan Chikkature <madhu.cr@ti.com> Cc: <linux-mmc@vger.kernel.org> Signed-off-by:
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Jiri Pinkava authored
[cjb: fix line-wrapped patch] Signed-off-by:
Jiri Pinkava <jiri.pinkava@vscht.cz> Signed-off-by:
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Guennadi Liakhovetski authored
kunmap_atomic() takes the cookie, returned by the kmap_atomic() as its argument and not the page address, used as an argument to kmap_atomic(). This patch fixes the compile error: In file included from drivers/mmc/host/tmio_mmc.c:37: drivers/mmc/host/tmio_mmc.h: In function 'tmio_mmc_kunmap_atomic': drivers/mmc/host/tmio_mmc.h:192: error: negative width in bit-field '<anonymous>' Signed-off-by:
Guennadi Liakhovetski <g.liakhovetski@gmx.de> Acked-by:
Eric Miao <eric.y.miao@gmail.com> Tested-by:
Magnus Damm <damm@opensource.se> Cc: <stable@kernel.org> Signed-off-by:
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Yusuke Goda authored
Previously, it was possible for ack_mmc_irqs() to clear pending interrupt bits in the CTL_STATUS register, even though the interrupt handler had not been called. This was because of a race that existed when doing a read-modify-write sequence on CTL_STATUS. After the read step in this sequence, if an interrupt occurred (causing one of the bits in CTL_STATUS to be set) the write step would inadvertently clear it. Observed with the TMIO_STAT_RXRDY bit together with CMD53 on AR6002 and BCM4318 SDIO cards in polled mode. This patch eliminates this race by only writing to CTL_STATUS and clearing the interrupts that were passed as an argument to ack_mmc_irqs()." [matt@console-pimps.org: rewrote changelog] Signed-off-by:
Yusuke Goda <yusuke.goda.sx@renesas.com> Acked-by: Magnus Damm <damm@opensource.se>" Tested-by: Arnd Hannemann <arnd@arndnet.de>" Acked-by:
Ian Molton <ian@mnementh.co.uk> Cc: Matt Fleming <matt@console-pimps.org> Cc: Samuel Ortiz <sameo@linux.intel.com> Cc: Paul Mundt <lethal@linux-sh.org> Cc: <linux-mmc@vger.kernel.org> Cc: <stable@kernel.org> Signed-off-by:
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Michael S. Tsirkin authored
Add cgroup_attach_task_all() The existing cgroup_attach_task_current_cg() API is called by a thread to attach another thread to all of its cgroups; this is unsuitable for cases where a privileged task wants to attach itself to the cgroups of a less privileged one, since the call must be made from the context of the target task. This patch adds a more generic cgroup_attach_task_all() API that allows both the source task and to-be-moved task to be specified. cgroup_attach_task_current_cg() becomes a specialization of the more generic new function. [menage@google.com: rewrote changelog] [akpm@linux-foundation.org: address reviewer comments] Signed-off-by:
Michael S. Tsirkin <mst@redhat.com> Tested-by:
Alex Williamson <alex.williamson@redhat.com> Acked-by:
Paul Menage <menage@google.com> Cc: Li Zefan <lizf@cn.fujitsu.com> Cc: Ben Blum <bblum@google.com> Cc: Sridhar Samudrala <sri@us.ibm.com> Signed-off-by:
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Takashi Iwai authored
Fix the left-over old ifdef for PG_uncached in /proc/kpageflags. Now it's used by x86, too. Signed-off-by:
Takashi Iwai <tiwai@suse.de> Cc: Wu Fengguang <fengguang.wu@intel.com> Signed-off-by:
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Peter Oberparleiter authored
The gcov-kernel infrastructure expects that each object file is loaded only once. This may not be true, e.g. when loading multiple kernel modules which are linked to the same object file. As a result, loading such kernel modules will result in incorrect gcov results while unloading will cause a null-pointer dereference. This patch fixes these problems by changing the gcov-kernel infrastructure so that multiple profiling data sets can be associated with one debugfs entry. It applies to 2.6.36-rc1. Signed-off-by:
Peter Oberparleiter <oberpar@linux.vnet.ibm.com> Reported-by:
Werner Spies <werner.spies@thalesgroup.com> Cc: <stable@kernel.org> Signed-off-by:
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Simon Horman authored
Kexec tools has been moved to http://kernel.org/pub/linux/utils/kernel/kexec/ as user-space code shouldn't be in /pub/linux/kernel Signed-off-by:
Simon Horman <horms@verge.net.au> Acked-by:
"Eric W. Biederman" <ebiederm@xmission.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by:
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Jeff Moyer authored
commit c2c6ca41 (direct-io: do not merge logically non-contiguous requests) introduced a bug whereby all O_DIRECT I/Os were submitted a page at a time to the block layer. The problem is that the code expected dio->block_in_file to correspond to the current page in the dio. In fact, it corresponds to the previous page submitted via submit_page_section. This was purely an oversight, as the dio->cur_page_fs_offset field was introduced for just this purpose. This patch simply uses the correct variable when calculating whether there is a mismatch between contiguous logical blocks and contiguous physical blocks (as described in the comments). I also switched the if conditional following this check to an else if, to ensure that we never call dio_bio_submit twice for the same dio (in theory, this should not happen, anyway). I've tested this by running blktrace and verifying that a 64KB I/O was submitted as a single I/O. I also ran the patched kernel through xfstests' aio tests using xfs, ext4 (with 1k and 4k block sizes) and btrfs and verified that there were no regressions as compared to an unpatched kernel. Signed-off-by:
Jeff Moyer <jmoyer@redhat.com> Acked-by:
Josef Bacik <jbacik@redhat.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: Chris Mason <chris.mason@oracle.com> Cc: <stable@kernel.org> [2.6.35.x] Signed-off-by:
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Takashi Iwai authored
Added missing axis-mapping for HP ProBook 532x and HP Mini 5102. Signed-off-by:
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Jiri Slaby authored
bob.picco@hp.com doesn't work any more and Bob says that he's unlikely to work on hpet.c in the future. Signed-off-by:
Jiri Slaby <jslaby@suse.cz> Acked-by:
Bob Picco <bpicco@redhat.com> Signed-off-by:
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Mike Frysinger authored
Much (but not all) of the RTC state is kept in the RTC peripheral which has its own power domain. Periodically (1 HZ), that state is synced from one power domain to the other (peripheral->core). When we are resuming, we need to wait for the sync to occur so that we don't get a mismatch of reading undefined state in the rest of the driver. Further, once the externally maintained bits have been synced back into the core, we then need to restore the bits maintained in the core. In our particular case, that is just the write completion interrupt bit. If we don't do any of this, working with the RTC causes ~5 second delays from time to time after waking up due to the write completion interrupt never firing. Reported-by:
Michael Dean <mdean@aeronix.com> Reported-by:
Michael Hennerich <michael.hennerich@analog.com> Signed-off-by:
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Mike Frysinger authored
The int_clear helper takes a bitmask of interrupts to keep, not to disable. When suspending without wakeup enabled, we want to disable all interrupts, so use 0 (keep none) instead of -1 (keep all). Signed-off-by:
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Huang Ying authored
Some macro parameter references inside typeof() operator are not enclosed with parenthesis. It should be safer to add them. Signed-off-by:
Huang Ying <ying.huang@intel.com> Acked-by:
Stefani Seibold <stefani@seibold.net> Signed-off-by:
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David Vrabel authored
The introduction of support for SD combo cards breaks the initialization of all CSR SDIO chips. The GO_IDLE (CMD0) in mmc_sd_get_cid() causes CSR chips to be reset (this is non-standard behavior). When initializing an SDIO card check for a combo card by using the memory present bit in the R4 response to IO_SEND_OP_COND (CMD5). This avoids the call to mmc_sd_get_cid() on an SDIO-only card. Signed-off-by:
David Vrabel <david.vrabel@csr.com> Acked-by:
Michal Mirolaw <mirq-linux@rere.qmqm.pl> Cc: <linux-mmc@vger.kernel.org> Signed-off-by:
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Linus Torvalds authored
* master.kernel.org:/home/rmk/linux-2.6-arm: (30 commits) ARM: Update mach-types ARM: Partially revert "Auto calculate ZRELADDR and provide option for exceptions" ARM: Ensure PTE modifications via dma_alloc_coherent are visible ARM: 6359/1: ep93xx: move clock initialization earlier Revert "[ARM] pxa: remove now unnecessary dma_needs_bounce()" ARM: 6352/1: perf: fix event validation ARM: 6344/1: Mark CPU_32v6K as depended on CPU_V7 ARM: 6343/1: wire up fanotify and prlimit64 syscalls on ARM ARM: 6330/1: perf: reword comments relating to perf_event_do_pending ARM: pxa168fb: fix section mismatch ARM: pxa: Make id const in pwm_probe() ARM: pxa: fix CI_HSYNC and CI_VSYNC MFP defines for pxa300 ARM: pxa: remove __init from cpufreq_driver->init() ARM: imx: set cache line size to 64 bytes for i.MX5 mx5/clock: fix clear bit fields issue in _clk_ccgr_disable function mxc/tzic: add base address when accessing TZIC registers ARM: mach-shmobile: ap4evb: fix write protect for SDHI1 ARM: mach-shmobile: ap4evb: modify FSI2 ID ARM: mach-shmobile: do not enable the PLLC2 clock on init ARM: mach-shmobile: Clock framework comment fix ...
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- 09 Sep, 2010 1 commit
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Russell King authored
Signed-off-by:Russell King <rmk+kernel@arm.linux.org.uk>
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