- 14 4月, 2009 40 次提交
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由 Robin Holt 提交于
Introduce xpc_arch_ops and eliminate numerous individual global definitions. Signed-off-by: NRobin Holt <holt@sgi.com> Cc: Dean Nelson <dcn@sgi.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Robin Holt 提交于
sgi-xpc has a window of failure where an open message can be sent and a subsequent data message can get lost. We have added a new message (opencomplete) which closes that window. Signed-off-by: NRobin Holt <holt@sgi.com> Signed-off-by: NDean Nelson <dcn@sgi.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Robin Holt 提交于
The heartbeat timeout functionality in sgi-xpc is currently not trained to the connection time. If a connection is made and the code is in the last polling window prior to doing a timeout, the next polling window will see the heartbeat as unchanged and initiate a no-heartbeat disconnect. Signed-off-by: NRobin Holt <holt@sgi.com> Signed-off-by: NDean Nelson <dcn@sgi.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Robin Holt 提交于
Dean has moved on to other work. His responsibilities for XP/XPC/XPNET have been handed to me. Signed-off-by: NRobin Holt <holt@sgi.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Shen Feng 提交于
Use the default mountpoint of debugfs in the pktcdvd ABI. Signed-off-by: NShen Feng <shen@cn.fujitsu.com> Cc: <balagi@justmail.de> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Bharata B Rao 提交于
The description about various statistics from memory.stat is not accurate and confusing at times. Correct this along with a few other minor cleanups. Signed-off-by: NBharata B Rao <bharata@linux.vnet.ibm.com> Acked-by: NBalbir Singh <balbir@linux.vnet.ibm.com> Acked-by: NKAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Yang Hongyang 提交于
This is the second go through of the old DMA_nBIT_MASK macro,and there're not so many of them left,so I put them into one patch.I hope this is the last round. After this the definition of the old DMA_nBIT_MASK macro could be removed. Signed-off-by: NYang Hongyang <yanghy@cn.fujitsu.com> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Tony Lindgren <tony@atomide.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Cc: Greg KH <greg@kroah.com> Cc: Takashi Iwai <tiwai@suse.de> 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
If two writers allocating blocks to file race with each other (e.g. because writepages races with ordinary write or two writepages race with each other), ext2_getblock() can be called on the same inode in parallel. Before we are going to allocate new blocks, we have to recheck the block chain we have obtained so far without holding truncate_mutex. Otherwise we could overwrite the indirect block pointer set by the other writer leading to data loss. The below test program by Ying is able to reproduce the data loss with ext2 on in BRD in a few minutes if the machine is under memory pressure: long kMemSize = 50 << 20; int kPageSize = 4096; int main(int argc, char **argv) { int status; int count = 0; int i; char *fname = "/mnt/test.mmap"; char *mem; unlink(fname); int fd = open(fname, O_CREAT | O_EXCL | O_RDWR, 0600); status = ftruncate(fd, kMemSize); mem = mmap(0, kMemSize, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0); // Fill the memory with 1s. memset(mem, 1, kMemSize); sleep(2); for (i = 0; i < kMemSize; i++) { int byte_good = mem[i] != 0; if (!byte_good && ((i % kPageSize) == 0)) { //printf("%d ", i / kPageSize); count++; } } munmap(mem, kMemSize); close(fd); unlink(fname); if (count > 0) { printf("Running %d bad page\n", count); return 1; } return 0; } Cc: Ying Han <yinghan@google.com> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Signed-off-by: NJan Kara <jack@suse.cz> Cc: Mingming Cao <cmm@us.ibm.com> Cc: <linux-ext4@vger.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 Hugh Dickins 提交于
SHMEM_MAX_BYTES was derived from the maximum size of its triple-indirect swap vector, forgetting to take the MAX_LFS_FILESIZE limit into account. Never mind 256kB pages, even 8kB pages on 32-bit kernels allowed files to grow slightly bigger than that supposed maximum. Fix this by using the min of both (at build time not run time). And it happens that this calculation is good as far as 8MB pages on 32-bit or 16MB pages on 64-bit: though SHMSWP_MAX_INDEX gets truncated before that, it's truncated to such large numbers that we don't need to care. [akpm@linux-foundation.org: it needs pagemap.h] [akpm@linux-foundation.org: fix sparc64 min() warnings] Signed-off-by: NHugh Dickins <hugh@veritas.com> Cc: Yuri Tikhonov <yur@emcraft.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Yuri Tikhonov 提交于
Fix a division by zero which we have in shmem_truncate_range() and shmem_unuse_inode() when using big PAGE_SIZE values (e.g. 256kB on ppc44x). With 256kB PAGE_SIZE, the ENTRIES_PER_PAGEPAGE constant becomes too large (0x1.0000.0000) on a 32-bit kernel, so this patch just changes its type from 'unsigned long' to 'unsigned long long'. Hugh: reverted its unsigned long longs in shmem_truncate_range() and shmem_getpage(): the pagecache index cannot be more than an unsigned long, so the divisions by zero occurred in unreached code. It's a pity we need any ULL arithmetic here, but I found no pretty way to avoid it. Signed-off-by: NYuri Tikhonov <yur@emcraft.com> Signed-off-by: NHugh Dickins <hugh@veritas.com> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Stefan Husemann 提交于
Support the Intel 854 Chipset in fbdev. We test and use the patch on a Thomson IP1101 IPTV-Box. On the VGA-Port we get a normal signal. Here is the link to the Mambux-Project: http://www.mambux.de Cc: Keith Packard <keithp@keithp.com> Cc: Dave Airlie <airlied@linux.ie> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Signed-off-by: NStefan Husemann <shusemann@googlemail.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Michael Ellerman 提交于
I'm sure everyone knows this, but I didn't, so I googled it, and found a nice explanation from Linus. Might be worth sticking in Documentation. Signed-off-by: NMichael Ellerman <michael@ellerman.id.au> 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
mm/memcontrol.c:318: warning: `mem_cgroup_is_obsolete' defined but not used [akpm@linux-foundation.org: simplify as suggested by Balbir] Signed-off-by: NKAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Reviewed-by: NBalbir Singh <balbir@linux.vnet.ibm.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Andi Kleen 提交于
Impact: cleanup, fix Clean up sys_shutdown() exit path. Factor out common code. Return correct error code instead of always 0 on failure. Signed-off-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 Geert Uytterhoeven 提交于
| drivers/misc/eeprom/at25.c:358: warning: assignment from incompatible pointer type Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org> Cc: Kevin Hilman <khilman@deeprootsystems.com> Cc: David Brownell <dbrownell@users.sourceforge.net> Cc: Jean Delvare <khali@linux-fr.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Geert Uytterhoeven 提交于
| drivers/misc/eeprom/at24.c:508: warning: assignment from incompatible pointer type Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org> Cc: Kevin Hilman <khilman@deeprootsystems.com> Cc: David Brownell <dbrownell@users.sourceforge.net> Cc: Jean Delvare <khali@linux-fr.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
Update information about locking in JBD revoke code. Reported-by: Lin Tan <tammy000@gmail.com>. Signed-off-by: NJan Kara <jack@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 Andy Grover 提交于
While better than get_user_pages(), the usage of gupf(), especially the return values and the fact that it can potentially only partially pin the range, warranted some documentation. Signed-off-by: NAndy Grover <andy.grover@oracle.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Randy Robertson 提交于
Change cb6ff208 ("NOMMU: Support XIP on initramfs") seems to have broken booting from initramfs with /sbin/init being a hardlink. It seems like the logic required for XIP on nommu, i.e. ftruncate to reported cpio header file size (body_len) is broken for hardlinks, which have a reported size of 0, and the truncate thus nukes the contents of the file (in my case busybox), making boot impossible and ending with runaway loop modprobe binfmt-0000 - and of course 0000 is not a valid binary format. My fix is to only call ftruncate if size is non-zero which fixes things for me, but I'm not certain whether this will break XIP for those files on nommu systems, although I would guess not. Signed-off-by: NRandy Robertson <rmrobert@vmware.com> Acked-by: NDavid Howells <dhowells@redhat.com> Acked-by: NPaul Mundt <lethal@linux-sh.org> Acked-by: NH. Peter Anvin <hpa@zytor.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Oleg Nesterov 提交于
Pointed out by Roland. The bug was recently introduced by me in "forget_original_parent: split out the un-ptrace part", commit 39c626ae. Since that patch we have a window after exit_ptrace() drops tasklist and before forget_original_parent() takes it again. In this window the child can do ptrace(PTRACE_TRACEME) and nobody can untrace this child after that. Change ptrace_traceme() to not attach to the exiting ->real_parent. We don't report the error in this case, we pretend we attach right before ->real_parent calls exit_ptrace() which should untrace us anyway. Signed-off-by: NOleg Nesterov <oleg@redhat.com> Acked-by: NRoland McGrath <roland@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 Jean Delvare 提交于
Signed-off-by: NJean Delvare <khali@linux-fr.org> Acked-by: NDoug Thompson <dougthompson@xmission.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 David Howells 提交于
Do a bit of reformatting on the Unevictable-LRU documentation. Signed-off-by: NDavid Howells <dhowells@redhat.com> Acked-by: NLee Schermerhorn <lee.schermerhorn@hp.com> Cc: Rik van Riel <riel@redhat.com> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 David Howells 提交于
Point the UNEVICTABLE_LRU config option at the documentation describing the option. Signed-off-by: NDavid Howells <dhowells@redhat.com> Cc: Lee Schermerhorn <lee.schermerhorn@hp.com> Cc: Rik van Riel <riel@redhat.com> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Huang Weiyi 提交于
Remove duplicated #include in drivers/char/sysrq.c. Signed-off-by: NHuang Weiyi <weiyi.huang@gmail.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Joe Perches 提交于
commit ddb53d48 ("fbdev: remove cyblafb driver") removed drivers/video/cyblafb.c, but not its .h file Signed-off-by: NJoe Perches <joe@perches.com> Cc: Krzysztof Helt <krzysztof.h1@wp.pl> Cc: "Jani Monoses" <jani@ubuntu.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Andrea Righi 提交于
After the introduction of resource counters hierarchies (28dbc4b6) the prototypes of res_counter_init() and res_counter_charge() have been changed. Keep the documentation consistent with the actual function prototypes. Signed-off-by: NAndrea Righi <righi.andrea@gmail.com> Cc: Paul Menage <menage@google.com> Cc: Pavel Emelyanov <xemul@openvz.org> Cc: Balbir Singh <balbir@linux.vnet.ibm.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 David Brownell 提交于
The "simplify spi_write_then_read()" patch included two regressions from the 2.6.27 behaviors: - The data it wrote out during the (full duplex) read side of the transfer was not zeroed. - It fails completely on half duplex hardware, such as Microwire and most "3-wire" SPI variants. So, revert that patch. A revised version should be submitted at some point, which can get the speedup on standard hardware (full duplex) without breaking on less-capable half-duplex stuff. Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net> Cc: <stable@kernel.org> [2.6.28.x, 2.6.29.x] Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Andi Kleen 提交于
Impact: (nearly) trivial The patch commit da654b74 Author: Srinivasa Ds <srinivasa@in.ibm.com> Date: Tue Sep 23 15:23:52 2008 +0530 signals: demultiplexing SIGTRAP signal forgot to update the NSIGTRAP define in asm-generic/siginfo.h to the new number of sigtrap subcodes. Nothing in the tree seems to use it, but presumably something in user space might. So update it. Cc: Srinivasa Ds <srinivasa@in.ibm.com> Signed-off-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 Krzysztof Helt 提交于
Do not allow modes with unsupported pixel depth. Otherwise, one can hang a computer by setting incorrect value with fbset command. Signed-off-by: NKrzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Randy Dunlap 提交于
Fix filemap.c kernel-doc warnings: Warning(mm/filemap.c:575): No description found for parameter 'page' Warning(mm/filemap.c:575): No description found for parameter 'waiter' Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Eric Sandeen 提交于
Include <linux/types.h> in fiemap.h. Sam Ravnborg pointed out that this was missing in this newly-exported header which uses the __u32 and __u64 types. Signed-off-by: NEric Sandeen <sandeen@redhat.com> Cc: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Paul Menzel 提交于
Signed-off-by: NPaul Menzel <paulepanter@users.sourceforge.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Michal Januszewski 提交于
sisfb incorrectly sets the length of the color fields to 6 bits for PSEUDOCOLOR modes, even though 8 bits are always used per pixel. Fix this by setting the length to 8. Signed-off-by: NMichal Januszewski <spock@gentoo.org> Cc: Thomas Winischhofer <thomas@winischhofer.net> Acked-by: NKrzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Michal Januszewski 提交于
sa1100fb incorrectly sets the length of the color fields to 8 bits for PSEUDOCOLOR modes for which only 4 bits are used per pixel. Fix this by setting the length to 4 bits for these modes. Signed-off-by: NMichal Januszewski <spock@gentoo.org> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Michal Januszewski 提交于
s3fb incorrectly sets the length of the color fields to 6 bits for PSEUDOCOLOR modes, even though 8 or 4 bits are used per pixel. Fix this by setting the length to 8 or 4, respectively. Signed-off-by: NMichal Januszewski <spock@gentoo.org> Acked-by: NOndrej Zajicek <santiago@crfreenet.org> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Geert Uytterhoeven 提交于
| ipc/mq_sysctl.c:26: warning: 'get_mq' defined but not used Signed-off-by: NGeert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Acked-by: NSerge Hallyn <serue@us.ibm.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Alexey Dobriyan 提交于
Unused after 20dcae32 aka "[PATCH] aio: remove kioctx from mm_struct". Signed-off-by: NAlexey Dobriyan <adobriyan@gmail.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Dave Anderson 提交于
When an HFS filesystem is unmounted, it leaks a 2-page bitmap. Also, under extreme memory pressure, it's possible that hfs_releasepage() may use a tree pointer that has not been initialized, and if so, the release request should just be rejected. [akpm@linux-foundation.org: free_pages(0) is legal, remove obvious comment] Signed-off-by: NDave Anderson <anderson@redhat.com> Tested-by: NEugene Teo <eugeneteo@kernel.sg> Cc: Roman Zippel <zippel@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 Jonathan Cameron 提交于
Data sheet at: http://www.sensirion.ch/en/pdf/product_information/Datasheet-humidity-sensor-SHT1x.pdf These sensors communicate over a 2 wire bus running a device specific protocol. The complexity of the driver is mainly due to handling the substantial delays between requesting a reading and the device pulling the data line low to indicate that the data is available. This is handled by an interrupt that is disabled under all other conditions. I wasn't terribly clear on the best way to handle this, so comments on that aspect would be particularly welcome! Interpretation of the temperature depends on knowing the supply voltage. If configured in a board config as a regulator consumer this is obtained from the regulator subsystem. If not it should be provided in the platform data. I've placed this driver in the hwmon subsystem as it is definitely a device that may be used for hardware monitoring and with it's relatively slow response times (up to 120 millisecs to get a reading) a caching strategy certainly seems to make sense! Signed-off-by: NJonathan Cameron <jic23@cam.ac.uk> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Matthew Garrett 提交于
efifb will attempt to ioremap a framebuffer even if its starting address is 0, failing and causing an ugly backtrace in the process. Exit before probing if this is the case. Signed-off-by: NMatthew Garrett <mjg@redhat.com> Acked-by: NPeter Jones <pjones@redhat.com> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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