- 02 3月, 2015 14 次提交
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由 K. Y. Srinivasan 提交于
Correctly rollback state if the failure occurs after we have handed over the ownership of the buffer to the host. Signed-off-by: NK. Y. Srinivasan <kys@microsoft.com> Cc: stable@vger.kernel.org Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Nicholas Mc Guire 提交于
return type of wait_for_completion_timeout is unsigned long not int, this patch changes the type of t from int to unsigned long. Signed-off-by: NNicholas Mc Guire <der.herr@hofr.at> Signed-off-by: NK. Y. Srinivasan <kys@microsoft.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Nicholas Mc Guire 提交于
return type of wait_for_completion_timeout is unsigned long not int, this patch changes the type of t from int to unsigned long. Signed-off-by: NNicholas Mc Guire <der.herr@hofr.at> Signed-off-by: NK. Y. Srinivasan <kys@microsoft.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Nicholas Mc Guire 提交于
return type of wait_for_completion_timeout is unsigned long not int, this patch changes the type of t from int to unsigned long. Signed-off-by: NNicholas Mc Guire <der.herr@hofr.at> Signed-off-by: NK. Y. Srinivasan <kys@microsoft.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Dexuan Cui 提交于
Without this patch, the state is put to CHANNEL_OPENING_STATE, and when the driver is loaded next time, vmbus_open() will fail immediately due to newchannel->state != CHANNEL_OPEN_STATE. CC: "K. Y. Srinivasan" <kys@microsoft.com> Signed-off-by: NDexuan Cui <decui@microsoft.com> Reviewed-by: NJason Wang <jasowang@redhat.com> Signed-off-by: NK. Y. Srinivasan <kys@microsoft.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Dexuan Cui 提交于
I got HV_STATUS_INVALID_CONNECTION_ID on Hyper-V 2008 R2 when keeping running "rmmod hv_netvsc; modprobe hv_netvsc; rmmod hv_utils; modprobe hv_utils" in a Linux guest. Looks the host has some kind of throttling mechanism if some kinds of hypercalls are sent too frequently. Without the patch, the driver can occasionally fail to load. Also let's retry HV_STATUS_INSUFFICIENT_MEMORY, though we didn't get it before. Removed 'case -ENOMEM', since the hypervisor doesn't return this. CC: "K. Y. Srinivasan" <kys@microsoft.com> Reviewed-by: NJason Wang <jasowang@redhat.com> Signed-off-by: NDexuan Cui <decui@microsoft.com> Signed-off-by: NK. Y. Srinivasan <kys@microsoft.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Dexuan Cui 提交于
Before the line vmbus_open() returns, srv->util_cb can be already running and the variables, like util_fw_version, are needed by the srv->util_cb. So we have to make sure the variables are initialized before the vmbus_open(). CC: "K. Y. Srinivasan" <kys@microsoft.com> Reviewed-by: NVitaly Kuznetsov <vkuznets@redhat.com> Reviewed-by: NJason Wang <jasowang@redhat.com> Signed-off-by: NDexuan Cui <decui@microsoft.com> Signed-off-by: NK. Y. Srinivasan <kys@microsoft.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Vitaly Kuznetsov 提交于
Newly introduced clockevent devices made it impossible to unload hv_vmbus module as clockevents_config_and_register() takes additional reverence to the module. To make it possible again we do the following: - avoid setting dev->owner for clockevent devices; - implement hv_synic_clockevents_cleanup() doing clockevents_unbind_device(); - call it from vmbus_exit(). In theory hv_synic_clockevents_cleanup() can be merged with hv_synic_cleanup(), however, we call hv_synic_cleanup() from smp_call_function_single() and this doesn't work for clockevents_unbind_device() as it does such call on its own. I opted for a separate function. Signed-off-by: NVitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by: NK. Y. Srinivasan <kys@microsoft.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Vitaly Kuznetsov 提交于
It looks like clockevents_unbind is being exported by mistake as: - it is static; - it is not listed in include/linux/clockchips.h; - EXPORT_SYMBOL_GPL(clockevents_unbind) follows clockevents_unbind_device() implementation. I think clockevents_unbind_device should be exported instead. This is going to be used to teardown Hyper-V clockevent devices on module unload. Signed-off-by: NVitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by: NK. Y. Srinivasan <kys@microsoft.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Vitaly Kuznetsov 提交于
SynIC has to be switched off when we unload the module, otherwise registered memory pages can get corrupted after (as Hyper-V host still writes there) and we see the following crashes for random processes: [ 89.116774] BUG: Bad page map in process sh pte:4989c716 pmd:36f81067 [ 89.159454] addr:0000000000437000 vm_flags:00000875 anon_vma: (null) mapping:ffff88007bba55a0 index:37 [ 89.226146] vma->vm_ops->fault: filemap_fault+0x0/0x410 [ 89.257776] vma->vm_file->f_op->mmap: generic_file_mmap+0x0/0x60 [ 89.297570] CPU: 0 PID: 215 Comm: sh Tainted: G B 3.19.0-rc5_bug923184+ #488 [ 89.353738] Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS 090006 05/23/2012 [ 89.409138] 0000000000000000 000000004e083d7b ffff880036e9fa18 ffffffff81a68d31 [ 89.468724] 0000000000000000 0000000000437000 ffff880036e9fa68 ffffffff811a1e3a [ 89.519233] 000000004989c716 0000000000000037 ffffea0001edc340 0000000000437000 [ 89.575751] Call Trace: [ 89.591060] [<ffffffff81a68d31>] dump_stack+0x45/0x57 [ 89.625164] [<ffffffff811a1e3a>] print_bad_pte+0x1aa/0x250 [ 89.667234] [<ffffffff811a2c95>] vm_normal_page+0x55/0xa0 [ 89.703818] [<ffffffff811a3105>] unmap_page_range+0x425/0x8a0 [ 89.737982] [<ffffffff811a3601>] unmap_single_vma+0x81/0xf0 [ 89.780385] [<ffffffff81184320>] ? lru_deactivate_fn+0x190/0x190 [ 89.820130] [<ffffffff811a4131>] unmap_vmas+0x51/0xa0 [ 89.860168] [<ffffffff811ad12c>] exit_mmap+0xac/0x1a0 [ 89.890588] [<ffffffff810763c3>] mmput+0x63/0x100 [ 89.919205] [<ffffffff811eba48>] flush_old_exec+0x3f8/0x8b0 [ 89.962135] [<ffffffff8123b5bb>] load_elf_binary+0x32b/0x1260 [ 89.998581] [<ffffffff811a14f2>] ? get_user_pages+0x52/0x60 hv_synic_cleanup() function exists but noone calls it now. Do the following: - call hv_synic_cleanup() on each cpu from vmbus_exit(); - write global disable bit through MSR; - use hv_synic_free_cpu() to avoid memory leask and code duplication. Signed-off-by: NVitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by: NK. Y. Srinivasan <kys@microsoft.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Vitaly Kuznetsov 提交于
We need to destroy hv_vmbus_con on module shutdown, otherwise the following crash is sometimes observed: [ 76.569845] hv_vmbus: Hyper-V Host Build:9600-6.3-17-0.17039; Vmbus version:3.0 [ 82.598859] BUG: unable to handle kernel paging request at ffffffffa0003480 [ 82.599287] IP: [<ffffffffa0003480>] 0xffffffffa0003480 [ 82.599287] PGD 1f34067 PUD 1f35063 PMD 3f72d067 PTE 0 [ 82.599287] Oops: 0010 [#1] SMP [ 82.599287] Modules linked in: [last unloaded: hv_vmbus] [ 82.599287] CPU: 0 PID: 26 Comm: kworker/0:1 Not tainted 3.19.0-rc5_bug923184+ #488 [ 82.599287] Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS Hyper-V UEFI Release v1.0 11/26/2012 [ 82.599287] Workqueue: hv_vmbus_con 0xffffffffa0003480 [ 82.599287] task: ffff88007b6ddfa0 ti: ffff88007f8f8000 task.ti: ffff88007f8f8000 [ 82.599287] RIP: 0010:[<ffffffffa0003480>] [<ffffffffa0003480>] 0xffffffffa0003480 [ 82.599287] RSP: 0018:ffff88007f8fbe00 EFLAGS: 00010202 ... To avoid memory leaks we need to free monitor_pages and int_page for vmbus_connection. Implement vmbus_disconnect() function by separating cleanup path from vmbus_connect(). As we use hv_vmbus_con to release channels (see free_channel() in channel_mgmt.c) we need to make sure the work was done before we remove the queue, do that with drain_workqueue(). We also need to avoid handling messages which can (potentially) create new channels, so set vmbus_connection.conn_state = DISCONNECTED at the very beginning of vmbus_exit() and check for that in vmbus_onmessage_work(). Signed-off-by: NVitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by: NK. Y. Srinivasan <kys@microsoft.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Vitaly Kuznetsov 提交于
On driver shutdown device_obj is being freed twice: 1) In vmbus_free_channels() 2) vmbus_device_release() (which is being triggered by device_unregister() in vmbus_device_unregister(). This double kfree leads to the following sporadic crash on driver unload: [ 23.469876] general protection fault: 0000 [#1] SMP [ 23.470036] Modules linked in: hv_vmbus(-) [ 23.470036] CPU: 2 PID: 213 Comm: rmmod Not tainted 3.19.0-rc5_bug923184+ #488 [ 23.470036] Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS 090006 05/23/2012 [ 23.470036] task: ffff880036ef1cb0 ti: ffff880036ce8000 task.ti: ffff880036ce8000 [ 23.470036] RIP: 0010:[<ffffffff811d2e1b>] [<ffffffff811d2e1b>] __kmalloc_node_track_caller+0xdb/0x1e0 [ 23.470036] RSP: 0018:ffff880036cebcc8 EFLAGS: 00010246 ... When this crash does not happen on driver unload the similar one is expected if we try to load hv_vmbus again. Remove kfree from vmbus_free_channels() as freeing it from vmbus_device_release() seems right. Signed-off-by: NVitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by: NK. Y. Srinivasan <kys@microsoft.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Vitaly Kuznetsov 提交于
All channel work queues are named 'hv_vmbus_ctl', this makes them indistinguishable in ps output and makes it hard to link to the corresponding vmbus device. Rename them to hv_vmbus_ctl/N and make vmbus device names match, e.g. now vmbus_1 device is served by hv_vmbus_ctl/1 work queue. Signed-off-by: NVitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by: NK. Y. Srinivasan <kys@microsoft.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Vitaly Kuznetsov 提交于
When an SMP Hyper-V guest is running on top of 2012R2 Server and secondary cpus are sent offline (with echo 0 > /sys/devices/system/cpu/cpu$cpu/online) the system freeze is observed. This happens due to the fact that on newer hypervisors (Win8, WS2012R2, ...) vmbus channel handlers are distributed across all cpus (see init_vp_index() function in drivers/hv/channel_mgmt.c) and on cpu offlining nobody reassigns them to CPU0. Prevent cpu offlining when vmbus is loaded until the issue is fixed host-side. This patch also disables hibernation but it is OK as it is also broken (MCE error is hit on resume). Suspend still works. Tested with WS2008R2 and WS2012R2. Signed-off-by: NVitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by: NK. Y. Srinivasan <kys@microsoft.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 23 2月, 2015 21 次提交
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由 Linus Torvalds 提交于
.. after extensive statistical analysis of my G+ polling, I've come to the inescapable conclusion that internet polls are bad. Big surprise. But "Hurr durr I'ma sheep" trounced "I like online polls" by a 62-to-38% margin, in a poll that people weren't even supposed to participate in. Who can argue with solid numbers like that? 5,796 votes from people who can't even follow the most basic directions? In contrast, "v4.0" beat out "v3.20" by a slimmer margin of 56-to-44%, but with a total of 29,110 votes right now. Now, arguably, that vote spread is only about 3,200 votes, which is less than the almost six thousand votes that the "please ignore" poll got, so it could be considered noise. But hey, I asked, so I'll honor the votes.
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git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4由 Linus Torvalds 提交于
Pull ext4 fixes from Ted Ts'o: "Ext4 bug fixes. We also reserved code points for encryption and read-only images (for which the implementation is mostly just the reserved code point for a read-only feature :-)" * tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: ext4: fix indirect punch hole corruption ext4: ignore journal checksum on remount; don't fail ext4: remove duplicate remount check for JOURNAL_CHECKSUM change ext4: fix mmap data corruption in nodelalloc mode when blocksize < pagesize ext4: support read-only images ext4: change to use setup_timer() instead of init_timer() ext4: reserve codepoints used by the ext4 encryption feature jbd2: complain about descriptor block checksum errors
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs由 Linus Torvalds 提交于
Pull more vfs updates from Al Viro: "Assorted stuff from this cycle. The big ones here are multilayer overlayfs from Miklos and beginning of sorting ->d_inode accesses out from David" * 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (51 commits) autofs4 copy_dev_ioctl(): keep the value of ->size we'd used for allocation procfs: fix race between symlink removals and traversals debugfs: leave freeing a symlink body until inode eviction Documentation/filesystems/Locking: ->get_sb() is long gone trylock_super(): replacement for grab_super_passive() fanotify: Fix up scripted S_ISDIR/S_ISREG/S_ISLNK conversions Cachefiles: Fix up scripted S_ISDIR/S_ISREG/S_ISLNK conversions VFS: (Scripted) Convert S_ISLNK/DIR/REG(dentry->d_inode) to d_is_*(dentry) SELinux: Use d_is_positive() rather than testing dentry->d_inode Smack: Use d_is_positive() rather than testing dentry->d_inode TOMOYO: Use d_is_dir() rather than d_inode and S_ISDIR() Apparmor: Use d_is_positive/negative() rather than testing dentry->d_inode Apparmor: mediated_filesystem() should use dentry->d_sb not inode->i_sb VFS: Split DCACHE_FILE_TYPE into regular and special types VFS: Add a fallthrough flag for marking virtual dentries VFS: Add a whiteout dentry type VFS: Introduce inode-getting helpers for layered/unioned fs environments Infiniband: Fix potential NULL d_inode dereference posix_acl: fix reference leaks in posix_acl_create autofs4: Wrong format for printing dentry ...
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git://ftp.arm.linux.org.uk/~rmk/linux-arm由 Linus Torvalds 提交于
Pull ARM fix from Russell King: "Just one fix this time around. __iommu_alloc_buffer() can cause a BUG() if dma_alloc_coherent() is called with either __GFP_DMA32 or __GFP_HIGHMEM set. The patch from Alexandre addresses this" * 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: ARM: 8305/1: DMA: Fix kzalloc flags in __iommu_alloc_buffer()
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由 Al Viro 提交于
X-Coverup: just ask spender Cc: stable@vger.kernel.org Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Al Viro 提交于
use_pde()/unuse_pde() in ->follow_link()/->put_link() resp. Cc: stable@vger.kernel.org Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Al Viro 提交于
As it is, we have debugfs_remove() racing with symlink traversals. Supply ->evict_inode() and do freeing there - inode will remain pinned until we are done with the symlink body. And rip the idiocy with checking if dentry is positive right after we'd verified debugfs_positive(), which is a stronger check... Cc: stable@vger.kernel.org Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Konstantin Khlebnikov 提交于
I've noticed significant locking contention in memory reclaimer around sb_lock inside grab_super_passive(). Grab_super_passive() is called from two places: in icache/dcache shrinkers (function super_cache_scan) and from writeback (function __writeback_inodes_wb). Both are required for progress in memory allocator. Grab_super_passive() acquires sb_lock to increment sb->s_count and check sb->s_instances. It seems sb->s_umount locked for read is enough here: super-block deactivation always runs under sb->s_umount locked for write. Protecting super-block itself isn't a problem: in super_cache_scan() sb is protected by shrinker_rwsem: it cannot be freed if its slab shrinkers are still active. Inside writeback super-block comes from inode from bdi writeback list under wb->list_lock. This patch removes locking sb_lock and checks s_instances under s_umount: generic_shutdown_super() unlinks it under sb->s_umount locked for write. New variant is called trylock_super() and since it only locks semaphore, callers must call up_read(&sb->s_umount) instead of drop_super(sb) when they're done. Signed-off-by: NKonstantin Khlebnikov <khlebnikov@yandex-team.ru> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 David Howells 提交于
Fanotify probably doesn't want to watch autodirs so make it use d_can_lookup() rather than d_is_dir() when checking a dir watch and give an error on fake directories. Signed-off-by: NDavid Howells <dhowells@redhat.com> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 David Howells 提交于
Fix up the following scripted S_ISDIR/S_ISREG/S_ISLNK conversions (or lack thereof) in cachefiles: (1) Cachefiles mostly wants to use d_can_lookup() rather than d_is_dir() as it doesn't want to deal with automounts in its cache. (2) Coccinelle didn't find S_IS* expressions in ASSERT() statements in cachefiles. Signed-off-by: NDavid Howells <dhowells@redhat.com> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 David Howells 提交于
Convert the following where appropriate: (1) S_ISLNK(dentry->d_inode) to d_is_symlink(dentry). (2) S_ISREG(dentry->d_inode) to d_is_reg(dentry). (3) S_ISDIR(dentry->d_inode) to d_is_dir(dentry). This is actually more complicated than it appears as some calls should be converted to d_can_lookup() instead. The difference is whether the directory in question is a real dir with a ->lookup op or whether it's a fake dir with a ->d_automount op. In some circumstances, we can subsume checks for dentry->d_inode not being NULL into this, provided we the code isn't in a filesystem that expects d_inode to be NULL if the dirent really *is* negative (ie. if we're going to use d_inode() rather than d_backing_inode() to get the inode pointer). Note that the dentry type field may be set to something other than DCACHE_MISS_TYPE when d_inode is NULL in the case of unionmount, where the VFS manages the fall-through from a negative dentry to a lower layer. In such a case, the dentry type of the negative union dentry is set to the same as the type of the lower dentry. However, if you know d_inode is not NULL at the call site, then you can use the d_is_xxx() functions even in a filesystem. There is one further complication: a 0,0 chardev dentry may be labelled DCACHE_WHITEOUT_TYPE rather than DCACHE_SPECIAL_TYPE. Strictly, this was intended for special directory entry types that don't have attached inodes. The following perl+coccinelle script was used: use strict; my @callers; open($fd, 'git grep -l \'S_IS[A-Z].*->d_inode\' |') || die "Can't grep for S_ISDIR and co. callers"; @callers = <$fd>; close($fd); unless (@callers) { print "No matches\n"; exit(0); } my @cocci = ( '@@', 'expression E;', '@@', '', '- S_ISLNK(E->d_inode->i_mode)', '+ d_is_symlink(E)', '', '@@', 'expression E;', '@@', '', '- S_ISDIR(E->d_inode->i_mode)', '+ d_is_dir(E)', '', '@@', 'expression E;', '@@', '', '- S_ISREG(E->d_inode->i_mode)', '+ d_is_reg(E)' ); my $coccifile = "tmp.sp.cocci"; open($fd, ">$coccifile") || die $coccifile; print($fd "$_\n") || die $coccifile foreach (@cocci); close($fd); foreach my $file (@callers) { chomp $file; print "Processing ", $file, "\n"; system("spatch", "--sp-file", $coccifile, $file, "--in-place", "--no-show-diff") == 0 || die "spatch failed"; } [AV: overlayfs parts skipped] Signed-off-by: NDavid Howells <dhowells@redhat.com> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 David Howells 提交于
Use d_is_positive() rather than testing dentry->d_inode in SELinux to get rid of direct references to d_inode outside of the VFS. Signed-off-by: NDavid Howells <dhowells@redhat.com> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 David Howells 提交于
Use d_is_positive() rather than testing dentry->d_inode in Smack to get rid of direct references to d_inode outside of the VFS. Signed-off-by: NDavid Howells <dhowells@redhat.com> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 David Howells 提交于
Use d_is_dir() rather than d_inode and S_ISDIR(). Note that this will include fake directories such as automount triggers. Signed-off-by: NDavid Howells <dhowells@redhat.com> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 David Howells 提交于
Use d_is_positive(dentry) or d_is_negative(dentry) rather than testing dentry->d_inode as the dentry may cover another layer that has an inode when the top layer doesn't or may hold a 0,0 chardev that's actually a whiteout. Signed-off-by: NDavid Howells <dhowells@redhat.com> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 David Howells 提交于
mediated_filesystem() should use dentry->d_sb not dentry->d_inode->i_sb and should avoid file_inode() also since it is really dealing with the path. Signed-off-by: NDavid Howells <dhowells@redhat.com> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 David Howells 提交于
Split DCACHE_FILE_TYPE into DCACHE_REGULAR_TYPE (dentries representing regular files) and DCACHE_SPECIAL_TYPE (representing blockdev, chardev, FIFO and socket files). d_is_reg() and d_is_special() are added to detect these subtypes and d_is_file() is left as the union of the two. This allows a number of places that use S_ISREG(dentry->d_inode->i_mode) to use d_is_reg(dentry) instead. Signed-off-by: NDavid Howells <dhowells@redhat.com> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 David Howells 提交于
Add a DCACHE_FALLTHRU flag to indicate that, in a layered filesystem, this is a virtual dentry that covers another one in a lower layer that should be used instead. This may be recorded on medium if directory integration is stored there. The flag can be set with d_set_fallthru() and tested with d_is_fallthru(). Original-author: Valerie Aurora <vaurora@redhat.com> Signed-off-by: NDavid Howells <dhowells@redhat.com> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 David Howells 提交于
Add DCACHE_WHITEOUT_TYPE and provide a d_is_whiteout() accessor function. A d_is_miss() accessor is also added for ordinary cache misses and d_is_negative() is modified to indicate either an ordinary miss or an enforced miss (whiteout). Signed-off-by: NDavid Howells <dhowells@redhat.com> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 David Howells 提交于
Introduce some function for getting the inode (and also the dentry) in an environment where layered/unioned filesystems are in operation. The problem is that we have places where we need *both* the union dentry and the lower source or workspace inode or dentry available, but we can only have a handle on one of them. Therefore we need to derive the handle to the other from that. The idea is to introduce an extra field in struct dentry that allows the union dentry to refer to and pin the lower dentry. Signed-off-by: NDavid Howells <dhowells@redhat.com> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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- 22 2月, 2015 5 次提交
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git://git.linux-mips.org/pub/scm/ralf/upstream-linus由 Linus Torvalds 提交于
Pull MIPS updates from Ralf Baechle: "This is the main pull request for MIPS: - a number of fixes that didn't make the 3.19 release. - a number of cleanups. - preliminary support for Cavium's Octeon 3 SOCs which feature up to 48 MIPS64 R3 cores with FPU and hardware virtualization. - support for MIPS R6 processors. Revision 6 of the MIPS architecture is a major revision of the MIPS architecture which does away with many of original sins of the architecture such as branch delay slots. This and other changes in R6 require major changes throughout the entire MIPS core architecture code and make up for the lion share of this pull request. - finally some preparatory work for eXtendend Physical Address support, which allows support of up to 40 bit of physical address space on 32 bit processors" [ Ahh, MIPS can't leave the PAE brain damage alone. It's like every CPU architect has to make that mistake, but pee in the snow by changing the TLA. But whether it's called PAE, LPAE or XPA, it's horrid crud - Linus ] * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (114 commits) MIPS: sead3: Corrected get_c0_perfcount_int MIPS: mm: Remove dead macro definitions MIPS: OCTEON: irq: add CIB and other fixes MIPS: OCTEON: Don't do acknowledge operations for level triggered irqs. MIPS: OCTEON: More OCTEONIII support MIPS: OCTEON: Remove setting of processor specific CVMCTL icache bits. MIPS: OCTEON: Core-15169 Workaround and general CVMSEG cleanup. MIPS: OCTEON: Update octeon-model.h code for new SoCs. MIPS: OCTEON: Implement DCache errata workaround for all CN6XXX MIPS: OCTEON: Add little-endian support to asm/octeon/octeon.h MIPS: OCTEON: Implement the core-16057 workaround MIPS: OCTEON: Delete unused COP2 saving code MIPS: OCTEON: Use correct instruction to read 64-bit COP0 register MIPS: OCTEON: Save and restore CP2 SHA3 state MIPS: OCTEON: Fix FP context save. MIPS: OCTEON: Save/Restore wider multiply registers in OCTEON III CPUs MIPS: boot: Provide more uImage options MIPS: Remove unneeded #ifdef __KERNEL__ from asm/processor.h MIPS: ip22-gio: Remove legacy suspend/resume support mips: pci: Add ifdef around pci_proc_domain ...
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc由 Linus Torvalds 提交于
Pull ARM SoC fixes from Arnd Bergmann: "A few fixes that came in too late to make it into the first set of pull requests but would still be nice to have in -rc1. The majority of these are trivial build fixes for bugs that I found myself using randconfig testing, and a set of two patches from Uwe to mark DT strings as 'const' where appropriate, to resolve inconsistent section attributes" * tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: ARM: make of_device_ids const ARM: make arrays containing machine compatible strings const ARM: mm: Remove Kconfig symbol CACHE_PL310 ARM: rockchip: force built-in regulator support for PM ARM: mvebu: build armada375-smp code conditionally ARM: sti: always enable RESET_CONTROLLER ARM: rockchip: make rockchip_suspend_init conditional ARM: ixp4xx: fix {in,out}s{bwl} data types ARM: prima2: do not select SMP_ON_UP ARM: at91: fix pm declarations ARM: davinci: multi-soc kernels require AUTO_ZRELADDR ARM: davinci: davinci_cfg_reg cannot be init ARM: BCM: put back ARCH_MULTI_V7 dependency for mobile ARM: vexpress: use ARM_CPU_SUSPEND if needed ARM: dts: add I2C device nodes for Broadcom Cygnus ARM: dts: BCM63xx: fix L2 cache properties
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi由 Linus Torvalds 提交于
Pull misc SCSI patches from James Bottomley: "This is a short patch set representing a couple of left overs from the merge window (debug removal and MAINTAINER changes). Plus one merge window regression (the local workqueue for hpsa) and a set of bug fixes for several issues (two for scsi-mq and the rest an assortment of long standing stuff, all cc'd to stable)" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: sg: fix EWOULDBLOCK errors with scsi-mq sg: fix unkillable I/O wait deadlock with scsi-mq sg: fix read() error reporting wd719x: add missing .module to wd719x_template hpsa: correct compiler warnings introduced by hpsa-add-local-workqueue patch fixed invalid assignment of 64bit mask to host dma_boundary for scatter gather segment boundary limit. fcoe: Transition maintainership to Vasu am53c974: remove left-over debugging code
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由 Linus Torvalds 提交于
Merge tag 'xfs-pnfs-for-linus-3.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs Pull xfs pnfs block layout support from Dave Chinner: "This contains the changes to XFS needed to support the PNFS block layout server that you pulled in through Bruce's NFS server tree merge. I originally thought that I'd need to merge changes into the NFS server side, but Bruce had already picked them up and so this is purely changes to the fs/xfs/ codebase. Summary: This update contains the implementation of the PNFS server export methods that enable use of XFS filesystems as a block layout target" * tag 'xfs-pnfs-for-linus-3.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs: xfs: recall pNFS layouts on conflicting access xfs: implement pNFS export operations
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git://git.linux-nfs.org/projects/trondmy/linux-nfs由 Linus Torvalds 提交于
Pull more NFS client updates from Trond Myklebust: "Highlights include: - Fix a use-after-free in decode_cb_sequence_args() - Fix a compile error when #undef CONFIG_PROC_FS - NFSv4.1 backchannel spinlocking issue - Cleanups in the NFS unstable write code requested by Linus - NFSv4.1 fix issues when the server denies our backchannel request - Cleanups in create_session and bind_conn_to_session" * tag 'nfs-for-3.20-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: NFSv4.1: Clean up bind_conn_to_session NFSv4.1: Always set up a forward channel when binding the session NFSv4.1: Don't set up a backchannel if the server didn't agree to do so NFSv4.1: Clean up create_session pnfs: Refactor the *_layout_mark_request_commit to use pnfs_layout_mark_request_commit NFSv4: Kill unused nfs_inode->delegation_state field NFS: struct nfs_commit_info.lock must always point to inode->i_lock nfs: Can call nfs_clear_page_commit() instead nfs: Provide and use helper functions for marking a page as unstable SUNRPC: Always manipulate rpc_rqst::rq_bc_pa_list under xprt->bc_pa_lock SUNRPC: Fix a compile error when #undef CONFIG_PROC_FS NFSv4.1: Convert open-coded array allocation calls to kmalloc_array() NFSv4.1: Fix a kfree() of uninitialised pointers in decode_cb_sequence_args
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