- 12 May, 2003 40 commits
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Andrew Morton authored
From: Andrey Panin <pazke@donpac.ru> attached patch fixes penguin with sgi framebuffer logo for visws subarch. It was broken in 2.5.68 IIRC.
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Andrew Morton authored
From: Mingming Cao <cmm@us.ibm.com> Basically, freeary() is called with the spinlock for that semaphore set hold. But after the semaphore set is removed from the ID array by calling sem_rmid(), there is no lock to protect the waiting queue for that semaphore set. So, if a waiter is woken up by a signal (not by the wakeup from freeary()), it will check the q->status and q->prev fields. At that moment, freeary() may not have a chance to update those fields yet. static void freeary (int id) { ....... sma = sem_rmid(id); ...... /* Wake up all pending processes and let them fail with EIDRM.*/ for (q = sma->sem_pending; q; q = q->next) { q->status = -EIDRM; q->prev = NULL; wake_up_process(q->sleeper); /* doesn't sleep */ } sem_unlock(sma); ...... } So I propose move sem_rmid() after the loop of waking up every waiters. That could gurantee that when the waiters are woke up, the updates for q->status and q->prev have already done. Similar thing in message queue case. The patch is attached below. Comments are very welcomed. I have tested this patch on 2.5.68 kernel with LTP tests, seems fine to me. Paul, could you test this on DOTS test again? Thanks!
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Andrew Morton authored
exit_mmap() currently assumes that the exitting task used virtual address span TASK_SIZE. But on some platforms, TASK_SIZE is variable, based on current->mm. But exit_mmap() can be called from (say) procfs's call to mmput. In which case current->mm has nothing to do with the mm which is being put in mmput(). So rather than assuming that the mm which is being put is current->mm, we need to calculate the virtual span of the mm. Add a new per-arch macro MM_VM_SIZE() for that. Some platforms can currently go BUG over this (where?). sparc64 is safe because our TASK_SIZE is constant. Platforms such as ia64 should stick the VM extent inside of mm_struct, I'd suggest adding it to mm_context_t. 1) TASK_SIZE means what is valid for mmap()'s in the processes address space 2) MM_VM_SIZE means where things might be mapped for a MM, including private implementation-specific areas created by the kernel which the user cannot access
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Andrew Morton authored
From: Rusty Russell <rusty@rustcorp.com.au> __module_get is theoretically allowed on module inside init, since we already hold an implicit reference. Currently this BUG()s: make the reference count explicit, which also simplifies delete path. Also cleans up unload path, such that it only drops semaphore when it's actually sleeping for rmmod --wait.
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Andrew Morton authored
From: Jan Kara <jack@suse.cz> I'm sending a fix which fixes potential problems (dropping references which were not acquired) when dquot_transfer() fails.
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Andrew Morton authored
From: Jan Kara <jack@suse.cz> I'm sending a patch which changes numbers of blocks reserved for quota writes to more appropriate values (with current values ext3 asserts can be triggered).
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Andrew Morton authored
From: Zwane Mwaikambo <zwane@linuxpower.ca> The proc interface has no way of telling wether there is an active cpufreq driver or not. This means that if you don't have a cpufreq supported processor, this will oops in various possible places.
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Andrew Morton authored
From: Zwane Mwaikambo <zwane@linuxpower.ca> Removes an extra initialisation and general nitpicking.
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Andrew Morton authored
From: Zwane Mwaikambo <zwane@linuxpower.ca> Commented out printk causes change in program flow in cpufreq/p4-clockmod.c
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Andrew Morton authored
From: "Stephen C. Tweedie" <sct@redhat.com> When a new vma can be merged simultaneously with its two immediate neighbours in both directions, vma_merge() extends the predecessor vma and deletes the successor. However, if the vma maps a file, it fails to fput() when doing the delete, leaving the file's refcount inconsistent.
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Andrew Morton authored
From: Bjorn Stenberg <bjorn@haxx.se> OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> This simple patch makes the linux fat filesystem driver use the next_cluster field in the fat_boot_fsinfo structure. This field is a hint where to start looking for free clusters. Using this field makes a big difference for disks connected over slow links such as USB 1.1. Finding the first free cluster on a 40gig fat-formatted usb disk can today take several minutes. This patch cuts it down to a fraction of a second. Also, commit the next_cluster search hint toand from the superblock in write_super/fill_super.
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Andrew Morton authored
It looks like I guessed wrong on this one.
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Andrew Morton authored
From: Christoph Hellwig <hch@lst.de> Whee! devfs_register isn't used anymore in the whole tree and with it some other devfs crap. Kill it for good.
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Andrew Morton authored
From: Rusty Russell <rusty@rustcorp.com.au>, David Mosberger The patch below updates the other platforms with module_arch_cleanup(). Also, I added more debug output to kernel/module.c since I found it useful to be able to see the final section layout.
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Andrew Morton authored
From: george anzinger <george@mvista.com> - Fix the sig_notify filtering code for the timer_create system call to properly check for the signal number being small enought, but only if SIG_NONE is not specified. - Eliminate useless test of sig_notify.
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Andrew Morton authored
From: Taral <taral@taral.net> Looks like the recent access_ok fixes broke building of i386. __verify_write is still referenced in a couple places.
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Andrew Morton authored
Some of the fancier slab debugging options are disabled for caches whose objects are larger than PAGE_SIZE/8, for speed/fragmentation reasons. But this patch turns up bugs in the size-2048 slab, so it was a bad idea. Enable the debugging for slabs up to 4096 bytes.
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bk://kernel.bkbits.net/davem/net-2.5Linus Torvalds authored
into home.transmeta.com:/home/torvalds/v2.5/linux
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Linus Torvalds authored
C preprocessor expressions work, guys!)
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Linus Torvalds authored
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Steven Cole authored
Here are three more fixes which I missed in the previous patch.
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Patrick McHardy authored
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Arnaldo Carvalho de Melo authored
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Hideaki Yoshifuji authored
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bk://kernel.bkbits.net/acme/net-2.5David S. Miller authored
into nuts.ninka.net:/home/davem/src/BK/net-2.5
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Arnaldo Carvalho de Melo authored
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Chris Wright authored
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Steven Cole authored
Don't depend on undefined preprocessor symbols evaluating to zero.
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bk://kernel.bkbits.net/davem/sparc-2.5Linus Torvalds authored
into home.transmeta.com:/home/torvalds/v2.5/linux
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bk://kernel.bkbits.net/davem/net-2.5Linus Torvalds authored
into home.transmeta.com:/home/torvalds/v2.5/linux
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Linus Torvalds authored
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Linus Torvalds authored
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Linus Torvalds authored
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Linus Torvalds authored
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David S. Miller authored
into nuts.ninka.net:/home/davem/src/BK/net-2.5
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David S. Miller authored
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David S. Miller authored
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Adrian Bunk authored
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David S. Miller authored
into kernel.bkbits.net:/home/davem/sparc-2.5
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David S. Miller authored
- Export ip_generic_getfrag - In udp6 increment v6 udp statistics not v4 one
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