- 18 5月, 2011 1 次提交
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由 Chris Metcalf 提交于
This is a simple RTC driver that lets Tilera hardware boot up and set the clock correctly. Acked-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NChris Metcalf <cmetcalf@tilera.com>
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- 13 5月, 2011 2 次提交
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由 Chris Metcalf 提交于
This support was partially present in the existing code (look for "__tilegx__" ifdefs) but with this change you can build a working kernel using the TILE-Gx toolchain and ARCH=tilegx. Most of these files are new, generally adding a foo_64.c file where previously there was just a foo_32.c file. The ARCH=tilegx directive redirects to arch/tile, not arch/tilegx, using the existing SRCARCH mechanism in the top-level Makefile. Changes to existing files: - <asm/bitops.h> and <asm/bitops_32.h> changed to factor the include of <asm-generic/bitops/non-atomic.h> in the common header. - <asm/compat.h> and arch/tile/kernel/compat.c changed to remove the "const" markers I had put on compat_sys_execve() when trying to match some recent similar changes to the non-compat execve. It turns out the compat version wasn't "upgraded" to use const. - <asm/opcode-tile_64.h> and <asm/opcode_constants_64.h> were previously included accidentally, with the 32-bit contents. Now they have the proper 64-bit contents. Finally, I had to hack the existing hacky drivers/input/input-compat.h to add yet another "#ifdef" for INPUT_COMPAT_TEST (same as x86_64). Signed-off-by: NChris Metcalf <cmetcalf@tilera.com> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> [drivers/input]
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由 Chris Metcalf 提交于
The existing <asm-generic/unistd.h> mechanism doesn't really provide enough to create the 64-bit "compat" ABI properly in a generic way, since the compat ABI is a mix of things were you can re-use the 64-bit versions of syscalls and things where you need a compat wrapper. To provide this in the most direct way possible, I added two new macros to go along with the existing __SYSCALL and __SC_3264 macros: __SC_COMP and SC_COMP_3264. These macros take an additional argument, typically a "compat_sys_xxx" function, which is passed to __SYSCALL if you define __SYSCALL_COMPAT when including the header, resulting in a pointer to the compat function being placed in the generated syscall table. The change also adds some missing definitions to <linux/compat.h> so that it actually has declarations for all the compat syscalls, since the "[nr] = ##call" approach requires proper C declarations for all the functions included in the syscall table. Finally, compat.c defines compat_sys_sigpending() and compat_sys_sigprocmask() even if the underlying architecture doesn't request it, which tries to pull in undefined compat_old_sigset_t defines. We need to guard those compat syscall definitions with appropriate __ARCH_WANT_SYS_xxx ifdefs. Acked-by: NArnd Bergmann <arnd@arndb.de> Signed-off-by: NChris Metcalf <cmetcalf@tilera.com>
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- 05 5月, 2011 14 次提交
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由 Chris Metcalf 提交于
Signed-off-by: NChris Metcalf <cmetcalf@tilera.com>
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由 Oleg Nesterov 提交于
1. do_hardwall_trap() checks ->sighand != NULL and then takes ->siglock. This is unsafe even if the task can't run (I assume it is pinned to the same CPU), its parent can reap the task and set ->sighand = NULL right after this check. Even if the compiler dosn't read ->sighand twice and this memory can't to away __group_send_sig_info() is wrong after that. Use do_send_sig_info(). 2. Send SIGILL to the thread, not to the whole process. Unless it has the handler or blocked this kills the whole thread-group as before. IIUC, different threads can be bound to different rect's. 3. Check PF_EXITING instead of ->sighand. A zombie thread can go away but its ->sighand can be !NULL. Reported-by: NMatt Fleming <matt@console-pimps.org> Signed-off-by: NOleg Nesterov <oleg@redhat.com> Signed-off-by: NChris Metcalf <cmetcalf@tilera.com>
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由 KOSAKI Motohiro 提交于
We plan to change mm->cpu_vm_mask definition later. Thus, this patch convert it into proper macro. Signed-off-by: NKOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: NChris Metcalf <cmetcalf@tilera.com>
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由 James Hogan 提交于
Since v2.6.20 "Pass struct dev pointer to dma_cache_sync()" (d3fa72e4), dma_cache_sync() takes a struct dev pointer, but these appear to be missing from the tile and mn10300 implementations, so add them. Signed-off-by: NJames Hogan <james.hogan@imgtec.com> [cmetcalf@tilera.com: took only the "tile" portion as I don't maintain mn10300] Signed-off-by: NChris Metcalf <cmetcalf@tilera.com>
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由 Chris Metcalf 提交于
Many of the syscalls mentioned in the audit code are not present for architectures that implement only the "standard" set of Linux syscalls (e.g. openat, but not open, etc.). This change adds proper #ifdefs for all those syscalls. Acked-by: NArnd Bergmann <arnd@arndb.de> Signed-off-by: NChris Metcalf <cmetcalf@tilera.com>
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由 Chris Metcalf 提交于
They are only applicable for locally-homecached memory ranges, so change their names to {flush,finv}_buffer_local(). Change inv_buffer() to just do an mf instead of any kind of fancier barrier, since you're obviously not going to be waiting for anything once the local homecache is invalidated. Fix tilepro.c network driver not to bother calling finv_buffer when stopping the EPP, but just mf after memset to ensure that it will not see any packet data after we finish stopping; use finv_buffer_remote() when doing exit-time cleanup. This also fixes a (not very interesting) generic Linux build failure where drivers/scsi/st.c declares its own flush_buffer(). Signed-off-by: NChris Metcalf <cmetcalf@tilera.com>
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由 Chris Metcalf 提交于
User space code has been able to discover the static page size by including a special <hv/pagesize.h> file. In the current release, that file is now gone, and <asm/page.h> doesn't rely on it. The getpagesize() API is now the only way for userspace to get the page size. Signed-off-by: NChris Metcalf <cmetcalf@tilera.com>
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由 Chris Metcalf 提交于
This change adds a number of missing headers in asm (fb.h, parport.h, serial.h, and vga.h) using the minimal generic versions. It also adds a number of missing interfaces that showed up as build failures when trying to build various drivers not normally included in the "tile" distribution: ioremap_wc(), memset_io(), io{read,write}{16,32}be(), virt_to_bus(), bus_to_virt(), irq_canonicalize(), __pte(), __pgd(), and __pmd(). I also added a cast in virt_to_page() since not all callers pass a pointer. I fixed <asm/stat.h> to properly include a __KERNEL__ guard for the __ARCH_WANT_STAT64 symbol, and <asm/swab.h> to use __builtin_bswap32() even for our 64-bit architecture, since the same code is produced. I added an export for get_cycles(), since it's used in some modules. And I made <arch/spr_def.h> properly include the __KERNEL__ guard, even though it's not yet exported, since it likely will be soon. Signed-off-by: NChris Metcalf <cmetcalf@tilera.com>
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由 Chris Metcalf 提交于
Otherwise, it's possible to end up with the prefetcher pulling data into cache that the code believes has been flushed. Signed-off-by: NChris Metcalf <cmetcalf@tilera.com>
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由 Chris Metcalf 提交于
The code accidentally was relying on this configuration option being selected. Signed-off-by: NChris Metcalf <cmetcalf@tilera.com>
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由 Chris Metcalf 提交于
Otherwise, in principle, there could be stale I$ data present next time the page that previously held the kernel module code was used to run some new code. Signed-off-by: NChris Metcalf <cmetcalf@tilera.com>
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由 Chris Metcalf 提交于
This allows processes to spread more effectively to multiple cores (particularly important on 64-core chips!). Signed-off-by: NChris Metcalf <cmetcalf@tilera.com>
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由 Chris Metcalf 提交于
This semantic was already true for atomic operations within the kernel, and this change makes it true for the fast atomic syscalls (__NR_cmpxchg and __NR_atomic_update) as well. Previously, user-space had to use the fast atomic syscalls exclusively to update memory, since raw stores could lose a race with the atomic update code even when the atomic update hadn't actually modified the value. With this change, we no longer write back the value to memory if it hasn't changed. This allows certain types of idioms in user space to work as expected, e.g. "atomic exchange" to acquire a spinlock, followed by a raw store of zero to release the lock. Signed-off-by: NChris Metcalf <cmetcalf@tilera.com>
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由 Chris Metcalf 提交于
Note that this is not complete hot-plug support; hot-unplug is not included. Signed-off-by: NChris Metcalf <cmetcalf@tilera.com>
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- 03 5月, 2011 2 次提交
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由 Chris Metcalf 提交于
This support is required for CONFIG_KEYS, NFSv4 kernel DNS, etc. The change is slightly more complex than the minimal thing, since I took advantage of having to go into the assembly code to just move a bunch of stuff into C code: specifically, the schedule(), do_async_page_fault(), do_signal(), and single_step_once() support, in addition to the TIF_NOTIFY_RESUME support. Signed-off-by: NChris Metcalf <cmetcalf@tilera.com>
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由 Chris Metcalf 提交于
This change is the result of some work to make the backtrace code more shareable between kernel, libc, and gdb. For the kernel, some good effects are to eliminate the hacky "VirtualAddress" typedef in favor of "unsigned long", to eliminate a bunch of spurious kernel doc comments, to remove the dead "bt_read_memory" function, and to use "__tilegx__" in #ifdefs instead of "TILE_CHIP". Signed-off-by: NChris Metcalf <cmetcalf@tilera.com>
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- 27 4月, 2011 5 次提交
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由 Linus Torvalds 提交于
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由 Randy Dunlap 提交于
The EXPERT menu list was recently broken by the insertion of a kconfig symbol (EMBEDDED) at the beginning of the EXPERT list of kconfig items. Broken by: commit 6a108a14 Author: David Rientjes <rientjes@google.com> Date: Thu Jan 20 14:44:16 2011 -0800 kconfig: rename CONFIG_EMBEDDED to CONFIG_EXPERT Restore the EXPERT menu list -- don't inject a symbol (EMBEDDED) that does not depend on EXPERT into the list. Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com> Cc: David Rientjes <rientjes@google.com> Cc: Peter Foley <pefoley2@verizon.net> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp: amd64_edac: Erratum #637 workaround amd64_edac: Factor in CC6 save area amd64_edac: Remove node interleave warning EDAC: Remove debugging output in scrub rate handling
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git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog由 Linus Torvalds 提交于
* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog: watchdog: iTCO_wdt: TCO Watchdog patch for Intel Panther Point PCH
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git://git390.marist.edu/pub/scm/linux-2.6由 Linus Torvalds 提交于
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: [S390] kvm-390: Let kernel exit SIE instruction on work [S390] dasd: check sense type in device change handler [S390] pfault: fix token handling [S390] qdio: reset error states immediately [S390] fix page table walk for changing page attributes [S390] prng: prevent access beyond end of stack [S390] dasd: fix race between open and offline
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- 26 4月, 2011 16 次提交
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git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable由 Linus Torvalds 提交于
* git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable: Btrfs: cleanup error handling in inode.c Btrfs: put the right bio if we have an error Btrfs: free bitmaps properly when evicting the cache Btrfs: Free free_space item properly in btrfs_trim_block_group() btrfs: add missing spin_unlock to a rare exit path Btrfs: check return value of kmalloc() btrfs: fix wrong allocating flag when reading page Btrfs: fix missing mutex_unlock in btrfs_del_dir_entries_in_log()
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git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable: Btrfs: do some plugging in the submit_bio threads
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由 Borislav Petkov 提交于
F15h CPUs may report a non-DRAM address when reporting an error address belonging to a CC6 state save area. Add a workaround to detect this condition and compute the actual DRAM address of the error as documented in the Revision Guide for AMD Family 15h Models 00h-0Fh Processors. Signed-off-by: NBorislav Petkov <borislav.petkov@amd.com>
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由 Borislav Petkov 提交于
F15h and later use a portion of DRAM as a CC6 storage area. BIOS programs D18F1x[17C:140,7C:40] DRAM Base/Limit accordingly by subtracting the storage area from the DRAM limit setting. However, in order for edac to consider that part of DRAM too, we need to include it into the per-node range. Signed-off-by: NBorislav Petkov <borislav.petkov@amd.com>
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由 Borislav Petkov 提交于
This warning was wrongfully added for a normal condition - intlvsel actually selects the destination node when node interleaving is enabled and it is not a mismatch. For a detailed example, see section 2.8.10.2 "Node Interleaving" in F10h BKDG. Signed-off-by: NBorislav Petkov <borislav.petkov@amd.com>
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由 Seth Heasley 提交于
This patch adds the TCO Watchdog DeviceIDs for the Intel Panther Point PCH. Signed-off-by: NSeth Heasley <seth.heasley@intel.com> Signed-off-by: NWim Van Sebroeck <wim@iguana.be>
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git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6由 Linus Torvalds 提交于
* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6: CIFS: Fix memory over bound bug in cifs_parse_mount_options
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git://git.kernel.org/pub/scm/linux/kernel/git/ecryptfs/ecryptfs-2.6由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ecryptfs/ecryptfs-2.6: eCryptfs: Flush dirty pages in setattr eCryptfs: Handle failed metadata read in lookup eCryptfs: Add reference counting to lower files eCryptfs: dput dentries returned from dget_parent eCryptfs: Remove extra d_delete in ecryptfs_rmdir
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由 Linus Torvalds 提交于
Merge branch 'for-torvalds' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson * 'for-torvalds' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson: rtc: fix coh901331 startup crash mach-ux500: fix i2c0 device setup regression
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由 Eric Paris 提交于
Now that the security modules can decide whether they support the dcache RCU walk or not it's possible to make selinux a bit more RCU friendly. The SELinux AVC and security server access decision code is RCU safe. A specific piece of the LSM audit code may not be RCU safe. This patch makes the VFS RCU walk retry if it would hit the non RCU safe chunk of code. It will normally just work under RCU. This is done simply by passing the VFS RCU state as a flag down into the avc_audit() code and returning ECHILD there if it would have an issue. Based-on-patch-by: NAndi Kleen <ak@linux.intel.com> Signed-off-by: NEric Paris <eparis@redhat.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Christoph Hellwig 提交于
Now that the whole dcache_hash_bucket crap is gone, go all the way and also remove the weird locking layering violations for locking the hash buckets. Add hlist_bl_lock/unlock helpers to move the locking into the list abstraction instead of requiring each caller to open code it. After all allowing for the bit locks is the whole point of these helpers over the plain hlist variant. Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Linus Torvalds 提交于
When we are waiting for the bit-lock to be released, and are looping over the 'cpu_relax()' should not be doing anything else - otherwise we miss the point of trying to do the whole 'cpu_relax()'. Do the preemption enable/disable around the loop, rather than inside of it. Noticed when I was looking at the code generation for the dcache __d_drop usage, and the code just looked very odd. Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Tyler Hicks 提交于
After 57db4e8d changed eCryptfs to write-back caching, eCryptfs page writeback updates the lower inode times due to the use of vfs_write() on the lower file. To preserve inode metadata changes, such as 'cp -p' does with utimensat(), we need to flush all dirty pages early in ecryptfs_setattr() so that the user-updated lower inode metadata isn't clobbered later in writeback. https://bugzilla.kernel.org/show_bug.cgi?id=33372Reported-by: NRocko <rockorequin@hotmail.com> Signed-off-by: NTyler Hicks <tyhicks@linux.vnet.ibm.com>
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由 Tyler Hicks 提交于
When failing to read the lower file's crypto metadata during a lookup, eCryptfs must continue on without throwing an error. For example, there may be a plaintext file in the lower mount point that the user wants to delete through the eCryptfs mount. If an error is encountered while reading the metadata in lookup(), the eCryptfs inode's size could be incorrect. We must be sure to reread the plaintext inode size from the metadata when performing an open() or setattr(). The metadata is already being read in those paths, so this adds minimal performance overhead. This patch introduces a flag which will track whether or not the plaintext inode size has been read so that an incorrect i_size can be fixed in the open() or setattr() paths. https://bugs.launchpad.net/bugs/509180 Cc: <stable@kernel.org> Signed-off-by: NTyler Hicks <tyhicks@linux.vnet.ibm.com>
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由 Tsutomu Itoh 提交于
The error processing of several places is changed like setting the error number only at the error. Signed-off-by: NTsutomu Itoh <t-itoh@jp.fujitsu.com> Signed-off-by: NChris Mason <chris.mason@oracle.com>
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由 Josef Bacik 提交于
In btrfs_submit_direct_hook if the first btrfs_map_block fails we need to put the orig_bio, not bio. Signed-off-by: NJosef Bacik <josef@redhat.com> Signed-off-by: NChris Mason <chris.mason@oracle.com>
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