- 21 7月, 2011 3 次提交
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由 Jan Beulich 提交于
With the write lock path simply subtracting RW_LOCK_BIAS there is, on large systems, the theoretical possibility of overflowing the 32-bit value that was used so far (namely if 128 or more CPUs manage to do the subtraction, but don't get to do the inverse addition in the failure path quickly enough). A first measure is to modify RW_LOCK_BIAS itself - with the new value chosen, it is good for up to 2048 CPUs each allowed to nest over 2048 times on the read path without causing an issue. Quite possibly it would even be sufficient to adjust the bias a little further, assuming that allowing for significantly less nesting would suffice. However, as the original value chosen allowed for even more nesting levels, to support more than 2048 CPUs (possible currently only for 64-bit kernels) the lock itself gets widened to 64 bits. Signed-off-by: NJan Beulich <jbeulich@novell.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/4E258E0D020000780004E3F0@nat28.tlf.novell.comSigned-off-by: NIngo Molnar <mingo@elte.hu>
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由 Jan Beulich 提交于
Rather than having two functionally identical implementations for 32- and 64-bit configurations, use the previously extended assembly abstractions to fold the rwsem two implementations into a shared one. Signed-off-by: NJan Beulich <jbeulich@novell.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/4E258DF3020000780004E3ED@nat28.tlf.novell.comSigned-off-by: NIngo Molnar <mingo@elte.hu>
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由 Jan Beulich 提交于
Rather than having two functionally identical implementations for 32- and 64-bit configurations, extend the existing assembly abstractions enough to fold the two rwlock implementations into a shared one. Signed-off-by: NJan Beulich <jbeulich@novell.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/4E258DD7020000780004E3EA@nat28.tlf.novell.comSigned-off-by: NIngo Molnar <mingo@elte.hu>
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- 04 6月, 2011 5 次提交
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由 Borislav Petkov 提交于
While testing the patchset at http://lkml.kernel.org/r/1306873314-32523-1-git-send-email-bp@alien8.de with binutils 2.16.1 from hell, kernel build fails with the following error: arch/x86/ia32/ia32entry.S: Assembler messages: arch/x86/ia32/ia32entry.S:139: Error: too many positional arguments make[2]: *** [arch/x86/ia32/ia32entry.o] Error 1 make[1]: *** [arch/x86/ia32] Error 2 make[1]: *** Waiting for unfinished jobs.... make: *** [arch/x86] Error 2 make: *** Waiting for unfinished jobs.... due to spaces between the operators of the __USER32_CS define. Fix it so that gas 2.16 can swallow it too. Signed-off-by: NBorislav Petkov <bp@alien8.de> Link: http://lkml.kernel.org/r/1307131642-32595-1-git-send-email-bp@alien8.deSigned-off-by: NH. Peter Anvin <hpa@linux.intel.com>
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由 Borislav Petkov 提交于
Drop thunk_ra macro in favor of an additional argument to the thunk macro since their bodies are almost identical. Do a whitespace scrubbing and use CFI-aware macros for full annotation. Signed-off-by: NBorislav Petkov <bp@alien8.de> Link: http://lkml.kernel.org/r/1306873314-32523-5-git-send-email-bp@alien8.deSigned-off-by: NH. Peter Anvin <hpa@linux.intel.com>
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由 Borislav Petkov 提交于
... thus getting rid of the "else" part of the conditional statement in the macro. No functionality change. Signed-off-by: NBorislav Petkov <bp@alien8.de> Link: http://lkml.kernel.org/r/1306873314-32523-4-git-send-email-bp@alien8.deSigned-off-by: NH. Peter Anvin <hpa@linux.intel.com>
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由 Borislav Petkov 提交于
This saves us the else part of the conditional statement in the macro. No functionality change. Signed-off-by: NBorislav Petkov <bp@alien8.de> Link: http://lkml.kernel.org/r/1306873314-32523-3-git-send-email-bp@alien8.deSigned-off-by: NH. Peter Anvin <hpa@linux.intel.com>
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由 Borislav Petkov 提交于
Use dwarf2 cfi annotation macros, making SAVE/RESTORE_* marginally more readable. No functionality change. Signed-off-by: NBorislav Petkov <bp@alien8.de> Link: http://lkml.kernel.org/r/1306873314-32523-2-git-send-email-bp@alien8.deSigned-off-by: NH. Peter Anvin <hpa@linux.intel.com>
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- 30 5月, 2011 32 次提交
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由 Linus Torvalds 提交于
.. except there are various scripts that really know that there are three numbers, so it calls itself "3.0.0-rc1". Hopefully by the time the final 3.0 is out, we'll have that extra zero all figured out. Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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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: Remove ecryptfs_header_cache_2 eCryptfs: Cleanup and optimize ecryptfs_lookup_interpose() eCryptfs: Return useful code from contains_ecryptfs_marker eCryptfs: Fix new inode race condition eCryptfs: Cleanup inode initialization code eCryptfs: Consolidate inode functions into inode.c
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git://git.open-osd.org/linux-open-osd由 Linus Torvalds 提交于
* 'pnfs-submit' of git://git.open-osd.org/linux-open-osd: (32 commits) pnfs-obj: pg_test check for max_io_size NFSv4.1: define nfs_generic_pg_test NFSv4.1: use pnfs_generic_pg_test directly by layout driver NFSv4.1: change pg_test return type to bool NFSv4.1: unify pnfs_pageio_init functions pnfs-obj: objlayout_encode_layoutcommit implementation pnfs: encode_layoutcommit pnfs-obj: report errors and .encode_layoutreturn Implementation. pnfs: encode_layoutreturn pnfs: layoutret_on_setattr pnfs: layoutreturn pnfs-obj: osd raid engine read/write implementation pnfs: support for non-rpc layout drivers pnfs-obj: define per-inode private structure pnfs: alloc and free layout_hdr layoutdriver methods pnfs-obj: objio_osd device information retrieval and caching pnfs-obj: decode layout, alloc/free lseg pnfs-obj: pnfs_osd XDR client implementation pnfs-obj: pnfs_osd XDR definitions pnfs-obj: objlayoutdriver module skeleton ...
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由 Linus Torvalds 提交于
We had a few drivers move from arch/arm into drivers/gpio, but they don't actually compile without the ARM platform headers etc. As a result they were messing up allyesconfig on x86. Make them depend on ARM. Reported-by: NIngo Molnar <mingo@elte.hu> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Tyler Hicks 提交于
Now that ecryptfs_lookup_interpose() is no longer using ecryptfs_header_cache_2 to read in metadata, the kmem_cache can be removed and the ecryptfs_header_cache_1 kmem_cache can be renamed to ecryptfs_header_cache. Signed-off-by: NTyler Hicks <tyhicks@linux.vnet.ibm.com>
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由 Tyler Hicks 提交于
ecryptfs_lookup_interpose() has turned into spaghetti code over the years. This is an effort to clean it up. - Shorten overly descriptive variable names such as ecryptfs_dentry - Simplify gotos and error paths - Create helper function for reading plaintext i_size from metadata It also includes an optimization when reading i_size from the metadata. A complete page-sized kmem_cache_alloc() was being done to read in 16 bytes of metadata. The buffer for that is now statically declared. Signed-off-by: NTyler Hicks <tyhicks@linux.vnet.ibm.com>
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由 Tyler Hicks 提交于
Instead of having the calling functions translate the true/false return code to either 0 or -EINVAL, have contains_ecryptfs_marker() return 0 or -EINVAL so that the calling functions can just reuse the return code. Also, rename the function to ecryptfs_validate_marker() to avoid callers mistakenly thinking that it returns true/false codes. Signed-off-by: NTyler Hicks <tyhicks@linux.vnet.ibm.com>
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由 Tyler Hicks 提交于
Only unlock and d_add() new inodes after the plaintext inode size has been read from the lower filesystem. This fixes a race condition that was sometimes seen during a multi-job kernel build in an eCryptfs mount. https://bugzilla.kernel.org/show_bug.cgi?id=36002Signed-off-by: NTyler Hicks <tyhicks@linux.vnet.ibm.com> Reported-by: NDavid <david@unsolicited.net> Tested-by: NDavid <david@unsolicited.net>
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由 Linus Torvalds 提交于
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mjg59/platform-drivers-x86 * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mjg59/platform-drivers-x86: (43 commits) acer-wmi: support integer return type from WMI methods msi-laptop: fix section mismatch in reference from the function load_scm_model_init acer-wmi: support to set communication device state by new wmid method acer-wmi: allow 64-bits return buffer from WMI methods acer-wmi: check the existence of internal 3G device when set capability platform/x86:delete two unused variables support wlan hotkey on Acer Travelmate 5735Z platform-x86: intel_mid_thermal: Fix memory leak platform/x86: Fix Makefile for intel_mid_powerbtn platform/x86: Simplify intel_mid_powerbtn acer-wmi: Delete out-of-date documentation acerhdf: Clean up includes acerhdf: Drop pointless dependency on THERMAL_HWMON acer-wmi: Update MAINTAINERS wmi: Orphan ACPI-WMI driver tc1100-wmi: Orphan driver acer-wmi: does not allow negative number set to initial device state platform/oaktrail: ACPI EC Extra driver for Oaktrail thinkpad_acpi: Convert printks to pr_<level> thinkpad_acpi: Correct !CONFIG_THINKPAD_ACPI_VIDEO warning ...
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由 Linus Torvalds 提交于
Thomas Gleixner reports that we now have a boot crash triggered by CONFIG_CPUMASK_OFFSTACK=y: BUG: unable to handle kernel NULL pointer dereference at (null) IP: [<c11ae035>] find_next_bit+0x55/0xb0 Call Trace: [<c11addda>] cpumask_any_but+0x2a/0x70 [<c102396b>] flush_tlb_mm+0x2b/0x80 [<c1022705>] pud_populate+0x35/0x50 [<c10227ba>] pgd_alloc+0x9a/0xf0 [<c103a3fc>] mm_init+0xec/0x120 [<c103a7a3>] mm_alloc+0x53/0xd0 which was introduced by commit de03c72c ("mm: convert mm->cpu_vm_cpumask into cpumask_var_t"), and is due to wrong ordering of mm_init() vs mm_init_cpumask Thomas wrote a patch to just fix the ordering of initialization, but I hate the new double allocation in the fork path, so I ended up instead doing some more radical surgery to clean it all up. Reported-by: NThomas Gleixner <tglx@linutronix.de> Reported-by: NIngo Molnar <mingo@elte.hu> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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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] mm: fix mmu_gather rework [S390] mm: fix storage key handling
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git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile由 Linus Torvalds 提交于
* git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile: arch/tile: more /proc and /sys file support
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由 Matthew Garrett 提交于
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git://linux-nfs.org/~bfields/linux由 Linus Torvalds 提交于
* 'for-2.6.40' of git://linux-nfs.org/~bfields/linux: (22 commits) nfsd: make local functions static NFSD: Remove unused variable from nfsd4_decode_bind_conn_to_session() NFSD: Check status from nfsd4_map_bcts_dir() NFSD: Remove setting unused variable in nfsd_vfs_read() nfsd41: error out on repeated RECLAIM_COMPLETE nfsd41: compare request's opcnt with session's maxops at nfsd4_sequence nfsd v4.1 lOCKT clientid field must be ignored nfsd41: add flag checking for create_session nfsd41: make sure nfs server process OPEN with EXCLUSIVE4_1 correctly nfsd4: fix wrongsec handling for PUTFH + op cases nfsd4: make fh_verify responsibility of nfsd_lookup_dentry caller nfsd4: introduce OPDESC helper nfsd4: allow fh_verify caller to skip pseudoflavor checks nfsd: distinguish functions of NFSD_MAY_* flags svcrpc: complete svsk processing on cb receive failure svcrpc: take advantage of tcp autotuning SUNRPC: Don't wait for full record to receive tcp data svcrpc: copy cb reply instead of pages svcrpc: close connection if client sends short packet svcrpc: note network-order types in svc_process_calldir ...
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git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dm由 Linus Torvalds 提交于
* git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dm: dm kcopyd: return client directly and not through a pointer dm kcopyd: reserve fewer pages dm io: use fixed initial mempool size dm kcopyd: alloc pages from the main page allocator dm kcopyd: add gfp parm to alloc_pl dm kcopyd: remove superfluous page allocation spinlock dm kcopyd: preallocate sub jobs to avoid deadlock dm kcopyd: avoid pointless job splitting dm mpath: do not fail paths after integrity errors dm table: reject devices without request fns dm table: allow targets to support discards internally
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git://git.linux-nfs.org/projects/trondmy/nfs-2.6由 Linus Torvalds 提交于
* 'nfs-for-2.6.40' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6: SUNRPC: Support for RPC over AF_LOCAL transports SUNRPC: Remove obsolete comment SUNRPC: Use AF_LOCAL for rpcbind upcalls SUNRPC: Clean up use of curly braces in switch cases NFS: Revert NFSROOT default mount options SUNRPC: Rename xs_encode_tcp_fragment_header() nfs,rcu: convert call_rcu(nfs_free_delegation_callback) to kfree_rcu() nfs41: Correct offset for LAYOUTCOMMIT NFS: nfs_update_inode: print current and new inode size in debug output NFSv4.1: Fix the handling of NFS4ERR_SEQ_MISORDERED errors NFSv4: Handle expired stateids when the lease is still valid SUNRPC: Deal with the lack of a SYN_SENT sk->sk_state_change callback...
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git://git.kernel.org/pub/scm/linux/kernel/git/pkl/squashfs-linus由 Linus Torvalds 提交于
* git://git.kernel.org/pub/scm/linux/kernel/git/pkl/squashfs-linus: Squashfs: Fix sanity check patches on big-endian systems
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git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6由 Linus Torvalds 提交于
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: ACPI EC: remove redundant code ACPI: Add D3 cold state ACPI: processor: fix processor_physically_present in UP kernel ACPI: Split out custom_method functionality into an own driver ACPI: Cleanup custom_method debug stuff ACPI EC: enable MSI workaround for Quanta laptops ACPICA: Update to version 20110413 ACPICA: Execute an orphan _REG method under the EC device ACPICA: Move ACPI_NUM_PREDEFINED_REGIONS to a more appropriate place ACPICA: Update internal address SpaceID for DataTable regions ACPICA: Add more methods eligible for NULL package element removal ACPICA: Split all internal Global Lock functions to new file - evglock ACPI: EC: add another DMI check for ASUS hardware ACPI EC: remove dead code ACPICA: Fix code divergence of global lock handling ACPICA: Use acpi_os_create_lock interface ACPI: osl, add acpi_os_create_lock interface ACPI:Fix goto flows in thermal-sys
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git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-idle-2.6由 Linus Torvalds 提交于
* 'idle-release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-idle-2.6: x86 idle: deprecate mwait_idle() and "idle=mwait" cmdline param x86 idle: deprecate "no-hlt" cmdline param x86 idle APM: deprecate CONFIG_APM_CPU_IDLE x86 idle floppy: deprecate disable_hlt() x86 idle: EXPORT_SYMBOL(default_idle, pm_idle) only when APM demands it x86 idle: clarify AMD erratum 400 workaround idle governor: Avoid lock acquisition to read pm_qos before entering idle cpuidle: menu: fixed wrapping timers at 4.294 seconds
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由 Al Viro 提交于
Commit 1495f230 ("vmscan: change shrinker API by passing shrink_control struct") changed the API of ->shrink(), but missed ubifs and cifs instances. Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Boaz Harrosh 提交于
Implement pg_test vector to test for max IO sizes. We calculate a max_io_size member only once, and cache it in lseg so to not do so on every page insert. Signed-off-by: NBoaz Harrosh <bharrosh@panasas.com> [simplify logic] Signed-off-by: NBenny Halevy <bhalevy@panasas.com>
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由 Boaz Harrosh 提交于
By default, unless pnfs is used coalesce pages until pg_bsize (rsize or wsize) is reached. pnfs layout drivers define their own pg_test methods that use pnfs_generic_pg_test and need to define their own I/O size limits (e.g. based on the file stripe size). [Move a check from nfs_pageio_do_add_request to nfs_generic_pg_test] Signed-off-by: NBoaz Harrosh <bharrosh@panasas.com> Signed-off-by: NBenny Halevy <bhalevy@panasas.com>
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由 Benny Halevy 提交于
Signed-off-by: NBenny Halevy <bhalevy@panasas.com>
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由 Benny Halevy 提交于
Signed-off-by: NBenny Halevy <bhalevy@panasas.com>
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由 Benny Halevy 提交于
Use common code for pnfs_pageio_init_{read,write} and use a common generic pg_test function. Note that this function always assumes the the layout driver's pg_test method is implemented. [Fix BUG] Signed-off-by: NBoaz Harrosh <bharrosh@panasas.com> Signed-off-by: NBenny Halevy <bhalevy@panasas.com>
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由 Boaz Harrosh 提交于
* Define API for io-engines to report delta_space_used in IOs * Encode the osd-layout specific information of the layoutcommit XDR buffer. Signed-off-by: NBoaz Harrosh <bharrosh@panasas.com> Signed-off-by: NBenny Halevy <bhalevy@panasas.com>
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由 Benny Halevy 提交于
Add a layout driver method to encode the layout type specific opaque part of layout commit in-line in the xdr stream. Currently, the pnfs-objects layout driver uses it to encode metadata hints to the MDS and the blocks layout driver to commit provisionally allocated extents to the file. Signed-off-by: NBenny Halevy <bhalevy@panasas.com>
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由 Boaz Harrosh 提交于
An io_state pre-allocates an error information structure for each possible osd-device that might error during IO. When IO is done if all was well the io_state is freed. (as today). If the I/O has ended with an error, the io_state is queued on a per-layout err_list. When eventually encode_layoutreturn() is called, each error is properly encoded on the XDR buffer and only then the io_state is removed from err_list and de-allocated. It is up to the io_engine to fill in the segment that fault and the type of osd_error that occurred. By calling objlayout_io_set_result() for each failing device. In objio_osd: * Allocate io-error descriptors space as part of io_state * Use generic objlayout error reporting at end of io. Signed-off-by: NBoaz Harrosh <bharrosh@panasas.com> Signed-off-by: NBenny Halevy <bhalevy@panasas.com>
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由 Andy Adamson 提交于
Add a layout driver method to encode the layout type specific opaque part of layout return in-line in the xdr stream. Currently the pnfs-objects layout driver uses it to encode i/o error information on LAYOUTRETURN. Signed-off-by: NAndy Adamson <andros@netapp.com> [fixup layout header pointer for encode_layoutreturn] Signed-off-by: NBenny Halevy <bhalevy@panasas.com>
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由 Benny Halevy 提交于
With the objects layout security model, we have object capabilities that are associated with the layout and we anticipate that the server will issue a cb_layoutrecall for any setattr that changes security related attributes (user/group/mode/acl) or truncates the file. Therefore, the layout is returned before issuing the setattr to avoid the anticipated cb_layoutrecall. Signed-off-by: NBenny Halevy <bhalevy@panasas.com>
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由 Benny Halevy 提交于
NFSv4.1 LAYOUTRETURN implementation Currently, does not support layout-type payload encoding. Signed-off-by: NAlexandros Batsakis <batsakis@netapp.com> Signed-off-by: NAndy Adamson <andros@citi.umich.edu> Signed-off-by: NAndy Adamson <andros@netapp.com> Signed-off-by: NDean Hildebrand <dhildeb@us.ibm.com> Signed-off-by: NFred Isaman <iisaman@citi.umich.edu> Signed-off-by: NFred Isaman <iisaman@netapp.com> Signed-off-by: NMarc Eshel <eshel@almaden.ibm.com> Signed-off-by: NZhang Jingwang <zhangjingwang@nrchpc.ac.cn> [call pnfs_return_layout right before pnfs_destroy_layout] [remove assert_spin_locked from pnfs_clear_lseg_list] [remove wait parameter from the layoutreturn path.] [remove return_type field from nfs4_layoutreturn_args] [remove range from nfs4_layoutreturn_args] [no need to send layoutcommit from _pnfs_return_layout] [don't wait on sync layoutreturn] [fix layout stateid in layoutreturn args] [fixed NULL deref in _pnfs_return_layout] [removed recaim member of nfs4_layoutreturn_args] Signed-off-by: NBenny Halevy <bhalevy@panasas.com>
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由 Boaz Harrosh 提交于
With the use of the in-kernel osd library. Implement read/write of data from/to osd-objects according to information specified in the objects-layout. Support for stripping over mirrors with a received stripe_unit. There are however a few constrains which are not supported: 1. Stripe Unit must be a multiple of PAGE_SIZE 2. stripe length (stripe_unit * number_of_stripes) can not be bigger then 32bit. Also support raid-groups and partial-layout. Partial-layout is when not all the groups are received on the line, addressing only a partial range of the file. TODO: Only raid0! raid 4/5/6 support will come at later stage A none supported layout will send IO through the MDS [Important fallout from the last rebase] Signed-off-by: NBoaz Harrosh <bharrosh@panasas.com> [gfp_flags] Signed-off-by: NBenny Halevy <bhalevy@panasas.com>
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