aboutsummaryrefslogtreecommitdiffstats
Commit message (Collapse)AuthorAge
* [PATCH] move SYS_HYPERVISOR inside the Generic Driver menuRandy Dunlap2006-10-28
| | | | | | | | | | | | | Put SYS_HYPERVISOR inside the Generic Driver Config menu where it should be. Otherwise xconfig displays it as a dangling (lost) menu item under Device Drivers, all by itself (when all options are displayed). Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: <holzheu@de.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] fill_tgid: cleanup delays accountingOleg Nesterov2006-10-28
| | | | | | | | | | | | | | | | fill_tgid() should skip not only an already exited group leader. If the task has ->exit_state != 0 it already did exit_notify(), so it also did fill_tgid_exit()->delayacct_add_tsk(->signal->stats) and we should skip it to avoid a double accounting. This patch doesn't close the race completely, but it cleanups the code. Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Cc: Shailabh Nagar <nagar@watson.ibm.com> Cc: Balbir Singh <balbir@in.ibm.com> Cc: Jay Lan <jlan@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] taskstats: don't use tasklist_lockOleg Nesterov2006-10-28
| | | | | | | | | | | | | | | | Remove tasklist_lock from taskstats.c. find_task_by_pid() is rcu-safe. ->siglock allows us to traverse subthread without tasklist. Q: delay accounting looks wrong to me. If sub-thread has already called taskstats_exit_send() but didn't call release_task(self) yet it will be accounted twice. The window is big. No? Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Cc: Shailabh Nagar <nagar@watson.ibm.com> Cc: Balbir Singh <balbir@in.ibm.com> Cc: Jay Lan <jlan@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] taskstats: kill ->taskstats_lock in favor of ->siglockOleg Nesterov2006-10-28
| | | | | | | | | | | | | signal_struct is (mostly) protected by ->sighand->siglock, I think we don't need ->taskstats_lock to protect ->stats. This also allows us to simplify the locking in fill_tgid(). Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Cc: Shailabh Nagar <nagar@watson.ibm.com> Cc: Balbir Singh <balbir@in.ibm.com> Cc: Jay Lan <jlan@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] taskstats_tgid_alloc: optimizationOleg Nesterov2006-10-28
| | | | | | | | | | | Every subthread (except first) does unneeded kmem_cache_alloc/kmem_cache_free. Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Cc: Shailabh Nagar <nagar@watson.ibm.com> Cc: Balbir Singh <balbir@in.ibm.com> Cc: Jay Lan <jlan@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] taskstats_tgid_free: fix usageOleg Nesterov2006-10-28
| | | | | | | | | | | | | | | | | | | | | | taskstats_tgid_free() is called on copy_process's error path. This is wrong. IF (clone_flags & CLONE_THREAD) We should not clear ->signal->taskstats, current uses it, it probably has a valid accumulated info. ELSE taskstats_tgid_init() set ->signal->taskstats = NULL, there is nothing to free. Move the callsite to __exit_signal(). We don't need any locking, entire thread group is exiting, nobody should have a reference to soon to be released ->signal. Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Cc: Shailabh Nagar <nagar@watson.ibm.com> Cc: Balbir Singh <balbir@in.ibm.com> Cc: Jay Lan <jlan@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] bacct_add_tsk: fix unsafe and wrong parent/group_leader dereferenceOleg Nesterov2006-10-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | 1. ts = timespec_sub(uptime, current->group_leader->start_time); It is possible that current != tsk. Probably it was supposed to be 'tsk->group_leader->start_time. But why we are reading group_leader's start_time ? This accounting is per thread, not per procees, I changed this to 'tsk->start_time. Please corect me. 2. stats->ac_ppid = (tsk->parent) ? tsk->parent->pid : 0; tsk->parent never == NULL, and it is unsafe to dereference it. Both the task and it's parent may exit after the caller unlocks tasklist_lock, the memory could be unmapped (DEBUG_SLAB). (And we should use ->real_parent->tgid in fact). Q: I don't understand the 'if (thread_group_leader(tsk))' check. Why it is needed ? Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Cc: Shailabh Nagar <nagar@watson.ibm.com> Cc: Balbir Singh <balbir@in.ibm.com> Acked-by: Jay Lan <jlan@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] fill_tgid: fix task_struct leak and possible oopsOleg Nesterov2006-10-28
| | | | | | | | | | | | | | | | | 1. fill_tgid() forgets to do put_task_struct(first). 2. release_task(first) can happen after fill_tgid() drops tasklist_lock, it is unsafe to dereference first->signal. This is a temporary fix, imho the locking should be reworked. Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Cc: Shailabh Nagar <nagar@watson.ibm.com> Cc: Balbir Singh <balbir@in.ibm.com> Cc: Jay Lan <jlan@sgi.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] strstrip remove last blank fixMichael Holzheu2006-10-28
| | | | | | | | | | | | | | | | | | | | strstrip() does not remove the last blank from strings which only consist of blanks. Example: char string[] = " "; strstrip(string); results in " ", but should produce an empty string! The following patch solves this problem: Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Michael Holzheu <holzheu@de.ibm.com> Acked-by: Pekka Enberg <penberg@cs.helsinki.fi> Acked-by Joern Engel <joern@wh.fh-wedel.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Constify compat_get_bitmap argumentStephen Rothwell2006-10-28
| | | | | | | | | | | This means we can call it when the bitmap we want to fetch is declared const. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Christoph Lameter <clameter@engr.sgi.com> Cc: Paul Jackson <pj@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] VFS: Fix an error in unused dentry countingDavid Howells2006-10-28
| | | | | | | | | | | | | With Vasily Averin <vvs@sw.ru> Fix an error in unused dentry counting in shrink_dcache_for_umount_subtree() in which the count is modified without the dcache_lock held. Signed-off-by: David Howells <dhowells@redhat.com> Cc: Vasily Averin <vvs@sw.ru> Cc: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] missing unused dentry in prune_dcache()?Vasily Averin2006-10-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | On the the following patch: http://linux.bkbits.net:8080/linux-2.6/gnupatch@449b144ecSF1rYskg3q-SeR2vf88zg # ChangeSet # 2006/06/22 15:05:57-07:00 neilb@suse.de # [PATCH] Fix dcache race during umount # If prune_dcache finds a dentry that it cannot free, it leaves it where it # is (at the tail of the list) and exits, on the assumption that some other # thread will be removing that dentry soon. However as far as I see this comment is not correct: when we cannot take s_umount rw_semaphore (for example because it was taken in do_remount) this dentry is already extracted from dentry_unused list and we do not add it into the list again. Therefore dentry will not be found by prune_dcache() and shrink_dcache_sb() and will leave in memory very long time until the partition will be unmounted. The patch adds this dentry into tail of the dentry_unused list. Signed-off-by: Vasily Averin <vvs@sw.ru> Cc: Neil Brown <neilb@suse.de> Acked-by: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] hugetlb: fix absurd HugePages_RsvdHugh Dickins2006-10-28
| | | | | | | | | | | | | | If you truncated an mmap'ed hugetlbfs file, then faulted on the truncated area, /proc/meminfo's HugePages_Rsvd wrapped hugely "negative". Reinstate my preliminary i_size check before attempting to allocate the page (though this only fixes the most obvious case: more work will be needed here). Signed-off-by: Hugh Dickins <hugh@veritas.com> Cc: Adam Litke <agl@us.ibm.com> Cc: David Gibson <david@gibson.dropbear.id.au> Cc: "Chen, Kenneth W" <kenneth.w.chen@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] hugetlb: fix prio_tree unitHugh Dickins2006-10-28
| | | | | | | | | | | | | | | | | | | | | hugetlb_vmtruncate_list was misconverted to prio_tree: its prio_tree is in units of PAGE_SIZE (PAGE_CACHE_SIZE) like any other, not HPAGE_SIZE (whereas its radix_tree is kept in units of HPAGE_SIZE, otherwise slots would be absurdly sparse). At first I thought the error benign, just calling __unmap_hugepage_range on more vmas than necessary; but on 32-bit machines, when the prio_tree is searched correctly, it happens to ensure the v_offset calculation won't overflow. As it stood, when truncating at or beyond 4GB, it was liable to discard pages COWed from lower offsets; or even to clear pmd entries of preceding vmas, triggering exit_mmap's BUG_ON(nr_ptes). Signed-off-by: Hugh Dickins <hugh@veritas.com> Cc: Adam Litke <agl@us.ibm.com> Cc: David Gibson <david@gibson.dropbear.id.au> Cc: "Chen, Kenneth W" <kenneth.w.chen@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] hugetlb: fix size=4G parsingHugh Dickins2006-10-28
| | | | | | | | | | | | | | On 32-bit machines, mount -t hugetlbfs -o size=4G gave a 0GB filesystem, size=5G gave a 1GB filesystem etc: there's no point in masking size with HPAGE_MASK just before shifting its lower bits away, and since HPAGE_MASK is a UL, that removed all the higher bits of the unsigned long long size. Signed-off-by: Hugh Dickins <hugh@veritas.com> Cc: Adam Litke <agl@us.ibm.com> Cc: David Gibson <david@gibson.dropbear.id.au> Cc: "Chen, Kenneth W" <kenneth.w.chen@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] cciss: fix printk format warningRandy Dunlap2006-10-28
| | | | | | | | | | | Fix printk format warnings: drivers/block/cciss.c:2000: warning: long long int format, long unsigned int arg (arg 2) drivers/block/cciss.c:2035: warning: long long int format, long unsigned int arg (arg 2) Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Acked-by: Mike Miller <mike.miller@hp.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ioc4: fix printk format warningRandy Dunlap2006-10-28
| | | | | | | | | | Fix printk format warning: drivers/misc/ioc4.c:213: warning: long long int format, u64 arg (arg 3) Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Acked-by: Brent Casavant <bcasavan@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Add missing space in module.c for taintskernelJan Dittmer2006-10-28
| | | | | | | | | | Obvious fix. Signed-off-by: Jan Dittmer <jdi@l4x.org> Acked-by: Florin Malita <fmalita@gmail.com> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] visws build fixAndrey Panin2006-10-28
| | | | | | | | | | | | | | | | | | Fix this: > Subject : CONFIG_X86_VISWS=3Dy, CONFIG_SMP=3Dn compile error > References : http://lkml.org/lkml/2006/10/7/51 > Submitter : Jesper Juhl <jesper.juhl@gmail.com> > Caused-By : David Howells <dhowells@redhat.com> > commit 7d12e780e003f93433d49ce78cfedf4b4c52adc5 > Status : unknown Via undescribed means. Signed-off-by: Andrey Panin <pazke@donpac.ru> Cc: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] __vmalloc with GFP_ATOMIC causes 'sleeping from invalid context'Giridhar Pemmasani2006-10-28
| | | | | | | | | | | If __vmalloc is called to allocate memory with GFP_ATOMIC in atomic context, the chain of calls results in __get_vm_area_node allocating memory for vm_struct with GFP_KERNEL, causing the 'sleeping from invalid context' warning. This patch fixes it by passing the gfp flags along so __get_vm_area_node allocates memory for vm_struct with the same flags. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Fix potential OOPs in blkdev_open()Pavel Emelianov2006-10-28
| | | | | | | | | | blkdev_open() calls bc_acquire() to get a struct block_device. Since bc_acquire() may return NULL when system is out of memory an appropriate check is required. Signed-off-by: Pavel Emelianov <xemul@openvz.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] memory hotplug: __GFP_NOWARN is better for __kmalloc_section_memmap()Yasunori Goto2006-10-28
| | | | | | | | | | | | | | | | | | | Add __GFP_NOWARN flag to calling of __alloc_pages() in __kmalloc_section_memmap(). It can reduce noisy failure message. In ia64, section size is 1 GB, this means that order 8 pages are necessary for each section's memmap. It is often very hard requirement under heavy memory pressure as you know. So, __alloc_pages() gives up allocation and shows many noisy stack traces which means no page for each sections. (Current my environment shows 32 times of stack trace....) But, __kmalloc_section_memmap() calls vmalloc() after failure of it, and it can succeed allocation of memmap. So, its stack trace warning becomes just noisy. I suppose it shouldn't be shown. Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] md: fix printk format warnings, seen on powerpc64:Randy Dunlap2006-10-28
| | | | | | | | | | drivers/md/raid1.c:1479: warning: long long unsigned int format, long unsigned int arg (arg 4) drivers/md/raid10.c:1475: warning: long long unsigned int format, long unsigned int arg (arg 4) Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] md: fix up maintenance of ->degraded in multipathNeilBrown2006-10-28
| | | | | | | | | | A recent fix which made sure ->degraded was initialised properly exposed a second bug - ->degraded wasn't been updated when drives failed or were hot-added. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] md: simplify checking of available size when resizing an arrayNeilBrown2006-10-28
| | | | | | | | | | | | | When "mdadm --grow --size=xxx" is used to resize an array (use more or less of each device), we check the new siza against the available space in each device. We already have that number recorded in rdev->size, so calculating it is pointless (and wrong in one obscure case). Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] md: fix bug where spares don't always get rebuilt properly when they ↵NeilBrown2006-10-28
| | | | | | | | | | | become live If save_raid_disk is >= 0, then the device could be a device that is already in sync that is being re-added. So we need to default this value to -1. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] fix efi_memory_present_wrapper()bibo,mao2006-10-28
| | | | | | | | | | | efi_memory_present_wrapper() parameter start/end is physical address, but function memory_present parameter is PFN, this patch converts physical address to PFN. Signed-off-by: bibo, mao <bibo.mao@intel.com> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] jbd2: journal_dirty_data re-check for unmapped buffersEric Sandeen2006-10-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | When running several fsx's and other filesystem stress tests, we found cases where an unmapped buffer was still being sent to submit_bh by the ext3 dirty data journaling code. I saw this happen in two ways, both related to another thread doing a truncate which would unmap the buffer in question. Either we would get into journal_dirty_data with a bh which was already unmapped (although journal_dirty_data_fn had checked for this earlier, the state was not locked at that point), or it would get unmapped in the middle of journal_dirty_data when we dropped locks to call sync_dirty_buffer. By re-checking for mapped state after we've acquired the bh state lock, we should avoid these races. If we find a buffer which is no longer mapped, we essentially ignore it, because journal_unmap_buffer has already decided that this buffer can go away. I've also added tracepoints in these two cases, and made a couple other tracepoint changes that I found useful in debugging this. Signed-off-by: Eric Sandeen <esandeen@redhat.com> Cc: <linux-ext4@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] jbd: journal_dirty_data re-check for unmapped buffersEric Sandeen2006-10-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | When running several fsx's and other filesystem stress tests, we found cases where an unmapped buffer was still being sent to submit_bh by the ext3 dirty data journaling code. I saw this happen in two ways, both related to another thread doing a truncate which would unmap the buffer in question. Either we would get into journal_dirty_data with a bh which was already unmapped (although journal_dirty_data_fn had checked for this earlier, the state was not locked at that point), or it would get unmapped in the middle of journal_dirty_data when we dropped locks to call sync_dirty_buffer. By re-checking for mapped state after we've acquired the bh state lock, we should avoid these races. If we find a buffer which is no longer mapped, we essentially ignore it, because journal_unmap_buffer has already decided that this buffer can go away. I've also added tracepoints in these two cases, and made a couple other tracepoint changes that I found useful in debugging this. Signed-off-by: Eric Sandeen <esandeen@redhat.com> Cc: <linux-ext4@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ext4: fix printk format warningsRandy Dunlap2006-10-28
| | | | | | | | | | | | | | | | | | fs/ext4/resize.c:72: warning: long long unsigned int format, __u64 arg (arg 4) fs/ext4/resize.c:76: warning: long long unsigned int format, __u64 arg (arg 4) fs/ext4/resize.c:81: warning: long long unsigned int format, __u64 arg (arg 4) fs/ext4/resize.c:85: warning: long long unsigned int format, __u64 arg (arg 4) fs/ext4/resize.c:89: warning: long long unsigned int format, __u64 arg (arg 4) fs/ext4/resize.c:89: warning: long long unsigned int format, __u64 arg (arg 5) fs/ext4/resize.c:93: warning: long long unsigned int format, __u64 arg (arg 4) fs/ext4/resize.c:93: warning: long long unsigned int format, __u64 arg (arg 5) fs/ext4/resize.c:98: warning: long long unsigned int format, __u64 arg (arg 4) fs/ext4/resize.c:103: warning: long long unsigned int format, __u64 arg (arg 4) fs/ext4/resize.c:109: warning: long long unsigned int format, __u64 arg (arg 4) Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Use min of two prio settings in calculating distress for reclaimMartin Bligh2006-10-28
| | | | | | | | | | | | | | | | | | | | | | If try_to_free_pages / balance_pgdat are called with a gfp_mask specifying GFP_IO and/or GFP_FS, they will reclaim the requisite number of pages, and the reset prev_priority to DEF_PRIORITY (or to some other high (ie: unurgent) value). However, another reclaimer without those gfp_mask flags set (say, GFP_NOIO) may still be struggling to reclaim pages. The concurrent overwrite of zone->prev_priority will cause this GFP_NOIO thread to unexpectedly cease deactivating mapped pages, thus causing reclaim difficulties. Fix this is to key the distress calculation not off zone->prev_priority, but also take into account the local caller's priority by using min(zone->prev_priority, sc->priority) Signed-off-by: Martin J. Bligh <mbligh@google.com> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] vmscan: Fix temp_priority raceMartin Bligh2006-10-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The temp_priority field in zone is racy, as we can walk through a reclaim path, and just before we copy it into prev_priority, it can be overwritten (say with DEF_PRIORITY) by another reclaimer. The same bug is contained in both try_to_free_pages and balance_pgdat, but it is fixed slightly differently. In balance_pgdat, we keep a separate priority record per zone in a local array. In try_to_free_pages there is no need to do this, as the priority level is the same for all zones that we reclaim from. Impact of this bug is that temp_priority is copied into prev_priority, and setting this artificially high causes reclaimers to set distress artificially low. They then fail to reclaim mapped pages, when they are, in fact, under severe memory pressure (their priority may be as low as 0). This causes the OOM killer to fire incorrectly. From: Andrew Morton <akpm@osdl.org> __zone_reclaim() isn't modifying zone->prev_priority. But zone->prev_priority is used in the decision whether or not to bring mapped pages onto the inactive list. Hence there's a risk here that __zone_reclaim() will fail because zone->prev_priority ir large (ie: low urgency) and lots of mapped pages end up stuck on the active list. Fix that up by decreasing (ie making more urgent) zone->prev_priority as __zone_reclaim() scans the zone's pages. This bug perhaps explains why ZONE_RECLAIM_PRIORITY was created. It should be possible to remove that now, and to just start out at DEF_PRIORITY? Cc: Nick Piggin <nickpiggin@yahoo.com.au> Cc: Christoph Lameter <clameter@engr.sgi.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] mm: clean up pagecache allocationNick Piggin2006-10-28
| | | | | | | | | | | | | | - Consolidate page_cache_alloc - Fix splice: only the pagecache pages and filesystem data need to use mapping_gfp_mask. - Fix grab_cache_page_nowait: same as splice, also honour NUMA placement. Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds2006-10-27
|\ | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6: [SPARC]: Fix bus_id[] string overflow.
| * [SPARC]: Fix bus_id[] string overflow.David S. Miller2006-10-27
| | | | | | | | | | | | | | | | | | dp->path_component_name can be larger than ->bus_id[] so use a different naming scheme for this stuff. Noticed by Jurij Smakov. Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6Linus Torvalds2006-10-27
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6: PCI: Remove quirk_via_abnormal_poweroff PCI: reset pci device state to unknown state for resume PCI: x86-64: mmconfig missing printk levels PCI: fix pci_fixup_video as it blows up on sparc64 acpiphp: fix latch status
| * | PCI: Remove quirk_via_abnormal_poweroffKarsten Wiese2006-10-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | My K8T800 mobo resumes fine from suspend to ram with and without patch applied against 2.6.18. quirk_via_abnormal_poweroff makes some boards not boot 2.6.18, so IMO patch should go to head, 2.6.18.2 and everywhere "ACPI: ACPICA 20060623" has been applied. Remove quirk_via_abnormal_poweroff Obsoleted by "ACPI: ACPICA 20060623": <snip> Implemented support for "ignored" bits in the ACPI registers. According to the ACPI specification, these bits should be preserved when writing the registers via a read/modify/write cycle. There are 3 bits preserved in this manner: PM1_CONTROL[0] (SCI_EN), PM1_CONTROL[9], and PM1_STATUS[11]. http://bugzilla.kernel.org/show_bug.cgi?id=3691 </snip> Signed-off-by: Karsten Wiese <fzu@wemgehoertderstaat.de> Cc: Bob Moore <robert.moore@intel.com> Cc: "Brown, Len" <len.brown@intel.com> Acked-by: Dave Jones <davej@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | PCI: reset pci device state to unknown state for resumeShaohua Li2006-10-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Considering below scenario: 1.Unload a PCI device's driver, the device ->current remains in PCI_D0. 2.Do suspend/resume circle. After that, BIOS puts the device to D3. 3.Reload the device driver. The calling pci_set_power_state in the driver can't change the state to D0, as set_power_state thinks the device is already in D0. A bug is reported at http://bugzilla.kernel.org/show_bug.cgi?id=6024 Pat attached a patch at http://marc.theaimsgroup.com/?l=linux-pci&m=114049761428561&w=2 for this issue, but it's lost. As pci_set_power_state can handle D3 -> D0 correctly (restore config space), I simplified Patrick's patch. Signed-off-by: Shaohua Li <shaohua.li@intel.com> Cc: Patrick Mochel <mochel@digitalimplant.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | PCI: x86-64: mmconfig missing printk levelsDave Jones2006-10-27
| | | | | | | | | | | | | | | | | | | | | Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | PCI: fix pci_fixup_video as it blows up on sparc64Eiichiro Oiwa2006-10-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts much of the original pci_fixup_video change and makes it work for all arches that need it. fixed, and tested on x86, x86_64 and IA64 dig. Signed-off-by: Eiichiro Oiwa <eiichiro.oiwa.nm@hitachi.com> Acked-by: David Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | acpiphp: fix latch statusMUNEDA Takahiro2006-10-27
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | pci_hotplug.h says: * @latch_status: if the latch (if any) is open or closed (1/0) However, acpiphp returns opposite value. This patch fixes this issue. I tested this patch on my ia64 machine that has some apciphp based hotplug slots. Signed-off-by: MUNEDA Takahiro <muneda.takahiro@jp.fujitsu.com> Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | [PATCH] silence 'make xmldocs' warning by adding missing description of ↵Jesper Juhl2006-10-27
| | | | | | | | | | | | | | | | | | | | | | | | 'raw' in nand_base.c:1485 Add description of 'raw' in comments for drivers/mtd/nand/nand_base.c::nand_write_page_syndrome() so 'make xmldocs' will not spew a warning at us. Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] drivers: wait for threaded probes between initcall levelsAndrew Morton2006-10-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The multithreaded-probing code has a problem: after one initcall level (eg, core_initcall) has been processed, we will then start processing the next level (postcore_initcall) while the kernel threads which are handling core_initcall are still executing. This breaks the guarantees which the layered initcalls previously gave us. IOW, we want to be multithreaded _within_ an initcall level, but not between different levels. Fix that up by causing the probing code to wait for all outstanding probes at one level to complete before we start processing the next level. Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] vmlinux.lds: consolidate initcall sectionsAndrew Morton2006-10-27
|/ | | | | | | | | | | | | | Add a vmlinux.lds.h helper macro for defining the eight-level initcall table, teach all the architectures to use it. This is a prerequisite for a patch which performs initcall synchronisation for multithreaded-probing. Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@osdl.org> [ Added AVR32 as well ] Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds2006-10-26
|\ | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6: [SPARC64]: Fix memory corruption in pci_4u_free_consistent(). [SPARC64]: Fix central/FHC bus handling on Ex000 systems.
| * [SPARC64]: Fix memory corruption in pci_4u_free_consistent().David S. Miller2006-10-26
| | | | | | | | | | | | | | | | The second argument to free_npages() was being incorrectly calculated, which would thus access far past the end of the arena->map[] bitmap. Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC64]: Fix central/FHC bus handling on Ex000 systems.David S. Miller2006-10-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 1) probe_other_fhcs() wants to see only non-central FHC busses, so skip FHCs that don't sit off the root 2) Like SBUS, FHC can lack the appropriate address and size cell count properties, so add an of_busses[] entry and handlers for that. 3) Central FHC irq translator probing was buggy. We were trying to use dp->child in irq_trans_init but that linkage is not setup at this point. So instead, pass in the parent of "dp" and look for the child "fhc" with parent "central". Thanks to the tireless assistence of Ben Collins in tracking down these problems and testing out these fixes. Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2006-10-26
|\ \ | | | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: [BRIDGE]: correct print message typo [TCP] H-TCP: fix integer overflow [TCP] cubic: scaling error
| * | [BRIDGE]: correct print message typoRandy Dunlap2006-10-26
| | | | | | | | | | | | | | | | | | | | | Correct message typo/spello. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | [TCP] H-TCP: fix integer overflowGavin McCullagh2006-10-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | When using H-TCP with a single flow on a 500Mbit connection (or less actually), alpha can exceed 65000, so alpha needs to be a u32. Signed-off-by: Gavin McCullagh <gavin.mccullagh@nuim.ie> Signed-off-by: Doug Leith <doug.leith@nuim.ie> Signed-off-by: David S. Miller <davem@davemloft.net>
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-23 18:25:12 -0500