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* Merge branch 'x86-x32-for-linus' of ↵Linus Torvalds2012-03-303-36/+50
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x32 support for x86-64 from Ingo Molnar: "This tree introduces the X32 binary format and execution mode for x86: 32-bit data space binaries using 64-bit instructions and 64-bit kernel syscalls. This allows applications whose working set fits into a 32 bits address space to make use of 64-bit instructions while using a 32-bit address space with shorter pointers, more compressed data structures, etc." Fix up trivial context conflicts in arch/x86/{Kconfig,vdso/vma.c} * 'x86-x32-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (71 commits) x32: Fix alignment fail in struct compat_siginfo x32: Fix stupid ia32/x32 inversion in the siginfo format x32: Add ptrace for x32 x32: Switch to a 64-bit clock_t x32: Provide separate is_ia32_task() and is_x32_task() predicates x86, mtrr: Use explicit sizing and padding for the 64-bit ioctls x86/x32: Fix the binutils auto-detect x32: Warn and disable rather than error if binutils too old x32: Only clear TIF_X32 flag once x32: Make sure TS_COMPAT is cleared for x32 tasks fs: Remove missed ->fds_bits from cessation use of fd_set structs internally fs: Fix close_on_exec pointer in alloc_fdtable x32: Drop non-__vdso weak symbols from the x32 VDSO x32: Fix coding style violations in the x32 VDSO code x32: Add x32 VDSO support x32: Allow x32 to be configured x32: If configured, add x32 system calls to system call tables x32: Handle process creation x32: Signal-related system calls x86: Add #ifdef CONFIG_COMPAT to <asm/sys_ia32.h> ...
| * compat: Handle COMPAT_USE_64BIT_TIME in net/socket.cH. Peter Anvin2012-02-201-10/+8
| | | | | | | | | | | | | | Use helper functions aware of COMPAT_USE_64BIT_TIME to write struct timeval and struct timespec to userspace in net/socket.c. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
| * compat: Use COMPAT_USE_64BIT_TIME in net/compat.cH. J. Lu2012-02-201-25/+40
| | | | | | | | | | | | | | Handle 64-bit time structures in the networking core compat code. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Cc: David S. Miller <davem@davemloft.net>
| * compat: Use COMPAT_USE_64BIT_TIME in the Bluetooth subsystemH. J. Lu2012-02-201-1/+2
| | | | | | | | | | | | | | | | | | | | Enable the Bluetooth subsystem to be used with a compat ABI with 64-bit time. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Cc: Marcel Holtmann <marcel@holtmann.org> Cc: Gustavo F. Padovan <padovan@profusion.mobi> Cc: David S. Miller <davem@davemloft.net>
* | Merge branch 'for-3.4' of git://linux-nfs.org/~bfields/linuxLinus Torvalds2012-03-2911-83/+59
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull nfsd changes from Bruce Fields: Highlights: - Benny Halevy and Tigran Mkrtchyan implemented some more 4.1 features, moving us closer to a complete 4.1 implementation. - Bernd Schubert fixed a long-standing problem with readdir cookies on ext2/3/4. - Jeff Layton performed a long-overdue overhaul of the server reboot recovery code which will allow us to deprecate the current code (a rather unusual user of the vfs), and give us some needed flexibility for further improvements. - Like the client, we now support numeric uid's and gid's in the auth_sys case, allowing easier upgrades from NFSv2/v3 to v4.x. Plus miscellaneous bugfixes and cleanup. Thanks to everyone! There are also some delegation fixes waiting on vfs review that I suppose will have to wait for 3.5. With that done I think we'll finally turn off the "EXPERIMENTAL" dependency for v4 (though that's mostly symbolic as it's been on by default in distro's for a while). And the list of 4.1 todo's should be achievable for 3.5 as well: http://wiki.linux-nfs.org/wiki/index.php/Server_4.0_and_4.1_issues though we may still want a bit more experience with it before turning it on by default. * 'for-3.4' of git://linux-nfs.org/~bfields/linux: (55 commits) nfsd: only register cld pipe notifier when CONFIG_NFSD_V4 is enabled nfsd4: use auth_unix unconditionally on backchannel nfsd: fix NULL pointer dereference in cld_pipe_downcall nfsd4: memory corruption in numeric_name_to_id() sunrpc: skip portmap calls on sessions backchannel nfsd4: allow numeric idmapping nfsd: don't allow legacy client tracker init for anything but init_net nfsd: add notifier to handle mount/unmount of rpc_pipefs sb nfsd: add the infrastructure to handle the cld upcall nfsd: add a header describing upcall to nfsdcld nfsd: add a per-net-namespace struct for nfsd sunrpc: create nfsd dir in rpc_pipefs nfsd: add nfsd4_client_tracking_ops struct and a way to set it nfsd: convert nfs4_client->cl_cb_flags to a generic flags field NFSD: Fix nfs4_verifier memory alignment NFSD: Fix warnings when NFSD_DEBUG is not defined nfsd: vfs_llseek() with 32 or 64 bit offsets (hashes) nfsd: rename 'int access' to 'int may_flags' in nfsd_open() ext4: return 32/64-bit dir name hash according to usage type fs: add new FMODE flags: FMODE_32bithash and FMODE_64bithash ...
| * | sunrpc: skip portmap calls on sessions backchannelJ. Bruce Fields2012-03-261-0/+1
| | | | | | | | | | | | | | | | | | | | | There's obviously no point to doing portmap calls over the sessions backchannel. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * | sunrpc: create nfsd dir in rpc_pipefsJeff Layton2012-03-261-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | Add a new top-level dir in rpc_pipefs to hold the pipe for the clientid upcall. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * | Merge nfs containerization work from Trond's treeJ. Bruce Fields2012-03-2628-733/+1559
| |\ \ | | | | | | | | | | | | | | | | The nfs containerization work is a prerequisite for Jeff Layton's reboot recovery rework.
| * | | svcrdma: Cleanup sparse warnings in the svcrdma moduleTom Tucker2012-02-186-80/+50
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The svcrdma transport was un-marshalling requests in-place. This resulted in sparse warnings due to __beXX data containing both NBO and HBO data. The code has been restructured to do byte-swapping as the header is parsed instead of when the header is validated immediately after receipt. Also moved extern declarations for the workqueue and memory pools to the private header file. Signed-off-by: Tom Tucker <tom@ogc.us> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * | | SUNPRC: remove marking service temporary sockets with XPT_CHNGBUFStanislav Kinsbursky2012-02-031-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is a cleanup patch. Service temporary sockets can be TCP or RDMA only. But XPT_CHNGBUF service socket flag is checked only for UDP sockets on receive. Thus (if I don't miss something non-obvious) this bit raising for temporary sockets can be removed. Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * | | nfsd: remove some unneeded checksDan Carpenter2012-02-031-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We check for zero length strings in the caller now, so these aren't needed. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * | | nfsd: don't allow zero length strings in cache_parse()Dan Carpenter2012-02-031-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is no point in passing a zero length string here and quite a few of that cache_parse() implementations will Oops if count is zero. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Cc: stable@kernel.org Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* | | | Merge tag 'nfs-for-3.4-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfsLinus Torvalds2012-03-291-1/+1
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull NFS client bugfixes for Linux 3.4 from Trond Myklebust Highlights include: - Fix infinite loops in the mount code - Fix a userspace buffer overflow in __nfs4_get_acl_uncached - Fix a memory leak due to a double reference count in rpcb_getport_async() Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> * tag 'nfs-for-3.4-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: NFSv4: Minor cleanups for nfs4_handle_exception and nfs4_async_handle_error NFSv4.1: Fix layoutcommit error handling NFSv4: Fix two infinite loops in the mount code SUNRPC: Use the already looked-up xprt in rpcb_getport_async() NFS4.1: remove duplicate variable declaration in filelayout_clear_request_commit Fix length of buffer copied in __nfs4_get_acl_uncached
| * | | | SUNRPC: Use the already looked-up xprt in rpcb_getport_async()Bryan Schumaker2012-03-271-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | rbcb_getport_async() was looking up the rpc_xprt (reference++) and then later looking it up again (reference++) to pass through the rpcbind_args. The xprt would only be dereferenced once, when we were done with the rpcbind_args (reference--). This leaves an extra reference to the transport that would never go away. Signed-off-by: Bryan Schumaker <bjschuma@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | | | | Merge tag 'split-asm_system_h-for-linus-20120328' of ↵Linus Torvalds2012-03-2993-93/+0
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-asm_system Pull "Disintegrate and delete asm/system.h" from David Howells: "Here are a bunch of patches to disintegrate asm/system.h into a set of separate bits to relieve the problem of circular inclusion dependencies. I've built all the working defconfigs from all the arches that I can and made sure that they don't break. The reason for these patches is that I recently encountered a circular dependency problem that came about when I produced some patches to optimise get_order() by rewriting it to use ilog2(). This uses bitops - and on the SH arch asm/bitops.h drags in asm-generic/get_order.h by a circuituous route involving asm/system.h. The main difficulty seems to be asm/system.h. It holds a number of low level bits with no/few dependencies that are commonly used (eg. memory barriers) and a number of bits with more dependencies that aren't used in many places (eg. switch_to()). These patches break asm/system.h up into the following core pieces: (1) asm/barrier.h Move memory barriers here. This already done for MIPS and Alpha. (2) asm/switch_to.h Move switch_to() and related stuff here. (3) asm/exec.h Move arch_align_stack() here. Other process execution related bits could perhaps go here from asm/processor.h. (4) asm/cmpxchg.h Move xchg() and cmpxchg() here as they're full word atomic ops and frequently used by atomic_xchg() and atomic_cmpxchg(). (5) asm/bug.h Move die() and related bits. (6) asm/auxvec.h Move AT_VECTOR_SIZE_ARCH here. Other arch headers are created as needed on a per-arch basis." Fixed up some conflicts from other header file cleanups and moving code around that has happened in the meantime, so David's testing is somewhat weakened by that. We'll find out anything that got broken and fix it.. * tag 'split-asm_system_h-for-linus-20120328' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-asm_system: (38 commits) Delete all instances of asm/system.h Remove all #inclusions of asm/system.h Add #includes needed to permit the removal of asm/system.h Move all declarations of free_initmem() to linux/mm.h Disintegrate asm/system.h for OpenRISC Split arch_align_stack() out from asm-generic/system.h Split the switch_to() wrapper out of asm-generic/system.h Move the asm-generic/system.h xchg() implementation to asm-generic/cmpxchg.h Create asm-generic/barrier.h Make asm-generic/cmpxchg.h #include asm-generic/cmpxchg-local.h Disintegrate asm/system.h for Xtensa Disintegrate asm/system.h for Unicore32 [based on ver #3, changed by gxt] Disintegrate asm/system.h for Tile Disintegrate asm/system.h for Sparc Disintegrate asm/system.h for SH Disintegrate asm/system.h for Score Disintegrate asm/system.h for S390 Disintegrate asm/system.h for PowerPC Disintegrate asm/system.h for PA-RISC Disintegrate asm/system.h for MN10300 ...
| * | | | | Remove all #inclusions of asm/system.hDavid Howells2012-03-2893-93/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove all #inclusions of asm/system.h preparatory to splitting and killing it. Performed with the following command: perl -p -i -e 's!^#\s*include\s*<asm/system[.]h>.*\n!!' `grep -Irl '^#\s*include\s*<asm/system[.]h>' *` Signed-off-by: David Howells <dhowells@redhat.com>
* | | | | | Merge branch 'for-linus' of ↵Linus Torvalds2012-03-283-230/+255
|\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client Pull Ceph updates for 3.4-rc1 from Sage Weil: "Alex has been busy. There are a range of rbd and libceph cleanups, especially surrounding device setup and teardown, and a few critical fixes in that code. There are more cleanups in the messenger code, virtual xattrs, a fix for CRC calculation/checks, and lots of other miscellaneous stuff. There's a patch from Amon Ott to make inos behave a bit better on 32-bit boxes, some decode check fixes from Xi Wang, and network throttling fix from Jim Schutt, and a couple RBD fixes from Josh Durgin. No new functionality, just a lot of cleanup and bug fixing." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: (65 commits) rbd: move snap_rwsem to the device, rename to header_rwsem ceph: fix three bugs, two in ceph_vxattrcb_file_layout() libceph: isolate kmap() call in write_partial_msg_pages() libceph: rename "page_shift" variable to something sensible libceph: get rid of zero_page_address libceph: only call kernel_sendpage() via helper libceph: use kernel_sendpage() for sending zeroes libceph: fix inverted crc option logic libceph: some simple changes libceph: small refactor in write_partial_kvec() libceph: do crc calculations outside loop libceph: separate CRC calculation from byte swapping libceph: use "do" in CRC-related Boolean variables ceph: ensure Boolean options support both senses libceph: a few small changes libceph: make ceph_tcp_connect() return int libceph: encapsulate some messenger cleanup code libceph: make ceph_msgr_wq private libceph: encapsulate connection kvec operations libceph: move prepare_write_banner() ...
| * | | | | | libceph: isolate kmap() call in write_partial_msg_pages()Alex Elder2012-03-221-11/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In write_partial_msg_pages(), every case now does an identical call to kmap(page). Instead, just call it once inside the CRC-computing block where it's needed. Move the definition of kaddr inside that block, and make it a (char *) to ensure portable pointer arithmetic. We still don't kunmap() it until after the sendpage() call, in case that also ends up needing to use the mapping. Signed-off-by: Alex Elder <elder@dreamhost.com> Reviewed-by: Sage Weil <sage@newdream.net>
| * | | | | | libceph: rename "page_shift" variable to something sensibleAlex Elder2012-03-221-5/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In write_partial_msg_pages() there is a local variable used to track the starting offset within a bio segment to use. Its name, "page_shift" defies the Linux convention of using that name for log-base-2(page size). Since it's only used in the bio case rename it "bio_offset". Use it along with the page_pos field to compute the memory offset when computing CRC's in that function. This makes the bio case match the others more closely. Signed-off-by: Alex Elder <elder@dreamhost.com> Reviewed-by: Sage Weil <sage@newdream.net>
| * | | | | | libceph: get rid of zero_page_addressAlex Elder2012-03-221-9/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There's not a lot of benefit to zero_page_address, which basically holds a mapping of the zero page through the life of the messenger module. Even with our own mapping, the sendpage interface where it's used may need to kmap() it again. It's almost certain to be in low memory anyway. So stop treating the zero page specially in write_partial_msg_pages() and just get rid of zero_page_address entirely. Signed-off-by: Alex Elder <elder@dreamhost.com> Reviewed-by: Sage Weil <sage@newdream.net>
| * | | | | | libceph: only call kernel_sendpage() via helperAlex Elder2012-03-221-6/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make ceph_tcp_sendpage() be the only place kernel_sendpage() is used, by using this helper in write_partial_msg_pages(). Signed-off-by: Alex Elder <elder@dreamhost.com> Reviewed-by: Sage Weil <sage@newdream.net>
| * | | | | | libceph: use kernel_sendpage() for sending zeroesAlex Elder2012-03-221-5/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If a message queued for send gets revoked, zeroes are sent over the wire instead of any unsent data. This is done by constructing a message and passing it to kernel_sendmsg() via ceph_tcp_sendmsg(). Since we are already working with a page in this case we can use the sendpage interface instead. Create a new ceph_tcp_sendpage() helper that sets up flags to match the way ceph_tcp_sendmsg() does now. Signed-off-by: Alex Elder <elder@dreamhost.com> Reviewed-by: Sage Weil <sage@newdream.net>
| * | | | | | libceph: fix inverted crc option logicAlex Elder2012-03-221-10/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | CRC's are computed for all messages between ceph entities. The CRC computation for the data portion of message can optionally be disabled using the "nocrc" (common) ceph option. The default is for CRC computation for the data portion to be enabled. Unfortunately, the code that implements this feature interprets the feature flag wrong, meaning that by default the CRC's have *not* been computed (or checked) for the data portion of messages unless the "nocrc" option was supplied. Fix this, in write_partial_msg_pages() and read_partial_message(). Also change the flag variable in write_partial_msg_pages() to be "no_datacrc" to match the usage elsewhere in the file. This fixes http://tracker.newdream.net/issues/2064 Signed-off-by: Alex Elder <elder@dreamhost.com> Reviewed-by: Sage Weil <sage@newdream.net>
| * | | | | | libceph: some simple changesAlex Elder2012-03-221-4/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Nothing too big here. - define the size of the buffer used for consuming ignored incoming data using a symbolic constant - simplify the condition determining whether to unmap the page in write_partial_msg_pages(): do it for crc but not if the page is the zero page Signed-off-by: Alex Elder <elder@dreamhost.com> Signed-off-by: Sage Weil <sage@newdream.net>
| * | | | | | libceph: small refactor in write_partial_kvec()Alex Elder2012-03-221-11/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make a small change in the code that counts down kvecs consumed by a ceph_tcp_sendmsg() call. Same functionality, just blocked out a little differently. Signed-off-by: Alex Elder <elder@dreamhost.com> Signed-off-by: Sage Weil <sage@newdream.net>
| * | | | | | libceph: do crc calculations outside loopAlex Elder2012-03-221-14/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move blocks of code out of loops in read_partial_message_section() and read_partial_message(). They were only was getting called at the end of the last iteration of the loop anyway. Signed-off-by: Alex Elder <elder@dreamhost.com> Signed-off-by: Sage Weil <sage@newdream.net>
| * | | | | | libceph: separate CRC calculation from byte swappingAlex Elder2012-03-221-14/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Calculate CRC in a separate step from rearranging the byte order of the result, to improve clarity and readability. Use offsetof() to determine the number of bytes to include in the CRC calculation. In read_partial_message(), switch which value gets byte-swapped, since the just-computed CRC is already likely to be in a register. Signed-off-by: Alex Elder <elder@dreamhost.com> Signed-off-by: Sage Weil <sage@newdream.net>
| * | | | | | libceph: use "do" in CRC-related Boolean variablesAlex Elder2012-03-221-20/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Change the name (and type) of a few CRC-related Boolean local variables so they contain the word "do", to distingish their purpose from variables used for holding an actual CRC value. Note that in the process of doing this I identified a fairly serious logic error in write_partial_msg_pages(): the value of "do_crc" assigned appears to be the opposite of what it should be. No attempt to fix this is made here; this change preserves the erroneous behavior. The problem I found is documented here: http://tracker.newdream.net/issues/2064 Signed-off-by: Alex Elder <elder@dreamhost.com> Signed-off-by: Sage Weil <sage@newdream.net>
| * | | | | | ceph: ensure Boolean options support both sensesAlex Elder2012-03-221-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Many ceph-related Boolean options offer the ability to both enable and disable a feature. For all those that don't offer this, add a new option so that they do. Note that ceph_show_options()--which reports mount options currently in effect--only reports the option if it is different from the default value. Signed-off-by: Alex Elder <elder@dreamhost.com> Signed-off-by: Sage Weil <sage@newdream.net>
| * | | | | | libceph: a few small changesAlex Elder2012-03-221-14/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This gathers a number of very minor changes: - use %hu when formatting the a socket address's address family - null out the ceph_msgr_wq pointer after the queue has been destroyed - drop a needless cast in ceph_write_space() - add a WARN() call in ceph_state_change() in the event an unrecognized socket state is encountered - rearrange the logic in ceph_con_get() and ceph_con_put() so that: - the reference counts are only atomically read once - the values displayed via dout() calls are known to be meaningful at the time they are formatted Signed-off-by: Alex Elder <elder@dreamhost.com> Signed-off-by: Sage Weil <sage@newdream.net>
| * | | | | | libceph: make ceph_tcp_connect() return intAlex Elder2012-03-221-8/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is no real need for ceph_tcp_connect() to return the socket pointer it creates, since it already assigns it to con->sock, which is visible to the caller. Instead, have it return an error code, which tidies things up a bit. Signed-off-by: Alex Elder <elder@dreamhost.com> Signed-off-by: Sage Weil <sage@newdream.net>
| * | | | | | libceph: encapsulate some messenger cleanup codeAlex Elder2012-03-221-18/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Define a helper function to perform various cleanup operations. Use it both in the exit routine and in the init routine in the event of an error. Signed-off-by: Alex Elder <elder@dreamhost.com> Signed-off-by: Sage Weil <sage@newdream.net>
| * | | | | | libceph: make ceph_msgr_wq privateAlex Elder2012-03-221-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The messenger workqueue has no need to be public. So give it static scope. Signed-off-by: Alex Elder <elder@dreamhost.com> Signed-off-by: Sage Weil <sage@newdream.net>
| * | | | | | libceph: encapsulate connection kvec operationsAlex Elder2012-03-221-61/+56
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Encapsulate the operation of adding a new chunk of data to the next open slot in a ceph_connection's out_kvec array. Also add a "reset" operation to make subsequent add operations start at the beginning of the array again. Use these routines throughout, avoiding duplicate code and ensuring all calls are handled consistently. Signed-off-by: Alex Elder <elder@dreamhost.com> Signed-off-by: Sage Weil <sage@newdream.net>
| * | | | | | libceph: move prepare_write_banner()Alex Elder2012-03-221-3/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | One of the arguments to prepare_write_connect() indicates whether it is being called immediately after a call to prepare_write_banner(). Move the prepare_write_banner() call inside prepare_write_connect(), and reinterpret (and rename) the "after_banner" argument so it indicates that prepare_write_connect() should *make* the call rather than should know it has already been made. This was split out from the next patch to highlight this change in logic. Signed-off-by: Alex Elder <elder@dreamhost.com> Signed-off-by: Sage Weil <sage@newdream.net>
| * | | | | | rbd: make ceph_parse_options() return a pointerAlex Elder2012-03-221-8/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ceph_parse_options() takes the address of a pointer as an argument and uses it to return the address of an allocated structure if successful. With this interface is not evident at call sites that the pointer is always initialized. Change the interface to return the address instead (or a pointer-coded error code) to make the validity of the returned pointer obvious. Signed-off-by: Alex Elder <elder@dreamhost.com> Signed-off-by: Sage Weil <sage@newdream.net>
| * | | | | | ceph: eliminate some abusive castsAlex Elder2012-03-221-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes some spots where a type cast to (void *) was used as as a universal type hiding mechanism. Instead, properly cast the type to the intended target type. Signed-off-by: Alex Elder <elder@newdream.net> Signed-off-by: Sage Weil <sage@newdream.net>
| * | | | | | ceph: eliminate some needless castsAlex Elder2012-03-221-11/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This eliminates type casts in some places where they are not required. Signed-off-by: Alex Elder <elder@newdream.net> Signed-off-by: Sage Weil <sage@newdream.net>
| * | | | | | ceph: kill addr_str_lock spinlock; use atomic insteadAlex Elder2012-03-221-11/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A spinlock is used to protect a value used for selecting an array index for a string used for formatting a socket address for human consumption. The index is reset to 0 if it ever reaches the maximum index value. Instead, use an ever-increasing atomic variable as a sequence number, and compute the array index by masking off all but the sequence number's lowest bits. Make the number of entries in the array a power of two to allow the use of such a mask (to avoid jumps in the index value when the sequence number wraps). The length of these strings is somewhat arbitrarily set at 60 bytes. The worst-case length of a string produced is 54 bytes, for an IPv6 address that can't be shortened, e.g.: [1234:5678:9abc:def0:1111:2222:123.234.210.100]:32767 Change it so we arbitrarily use 64 bytes instead; if nothing else it will make the array of these line up better in hex dumps. Rename a few things to reinforce the distinction between the number of strings in the array and the length of individual strings. Signed-off-by: Alex Elder <elder@newdream.net> Signed-off-by: Sage Weil <sage@newdream.net>
| * | | | | | ceph: make use of "else" where appropriateAlex Elder2012-03-221-7/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Rearrange ceph_tcp_connect() a bit, making use of "else" rather than re-testing a value with consecutive "if" statements. Don't record a connection's socket pointer unless the connect operation is successful. Signed-off-by: Alex Elder <elder@dreamhost.com> Signed-off-by: Sage Weil <sage@newdream.net>
| * | | | | | ceph: use a shared zero page rather than one per messengerAlex Elder2012-03-221-14/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Each messenger allocates a page to be used when writing zeroes out in the event of error or other abnormal condition. Instead, use the kernel ZERO_PAGE() for that purpose. Signed-off-by: Alex Elder <elder@dreamhost.com> Signed-off-by: Sage Weil <sage@newdream.net>
| * | | | | | libceph: fix overflow check in crush_decode()Xi Wang2012-03-221-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The existing overflow check (n > ULONG_MAX / b) didn't work, because n = ULONG_MAX / b would both bypass the check and still overflow the allocation size a + n * b. The correct check should be (n > (ULONG_MAX - a) / b). Signed-off-by: Xi Wang <xi.wang@gmail.com> Signed-off-by: Sage Weil <sage@newdream.net>
| * | | | | | net/ceph: Only clear SOCK_NOSPACE when there is sufficient space in the ↵Jim Schutt2012-03-221-6/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | socket buffer The Ceph messenger would sometimes queue multiple work items to write data to a socket when the socket buffer was full. Fix this problem by making ceph_write_space() use SOCK_NOSPACE in the same way that net/core/stream.c:sk_stream_write_space() does, i.e., clearing it only when sufficient space is available in the socket buffer. Signed-off-by: Jim Schutt <jaschut@sandia.gov> Reviewed-by: Alex Elder <elder@dreamhost.com>
* | | | | | | Merge tag 'for-linus-3.4-merge-window' of ↵Linus Torvalds2012-03-281-3/+23
|\ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs Pull 9p changes for the 3.4 merge window from Eric Van Hensbergen. * tag 'for-linus-3.4-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs: 9p: statfs should not override server f_type net/9p: handle flushed Tclunk/Tremove net/9p: don't allow Tflush to be interrupted
| * | | | | | | net/9p: handle flushed Tclunk/TremoveJim Garlick2012-02-261-3/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When a Tclunk or Tremove request is flushed, the fid is not freed on the server. p9_client_clunk() should retry once on interrupt, then if interrupted again, leak the fid for the duration of the connection. p9_client_remove() should call p9_client_clunk() on interrupt instead of unconditionally destroying the fid. Signed-off-by: Jim Garlick <garlick@llnl.gov> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
| * | | | | | | net/9p: don't allow Tflush to be interruptedJim Garlick2012-02-261-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When a signal is received while sending a Tflush, the client, which has recursed into p9_client_rpc() while sending another request, should wait for Rflush as long as the transport is still up. Signed-off-by: Jim Garlick <garlick@llnl.gov> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
* | | | | | | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds2012-03-287-57/+103
|\ \ \ \ \ \ \ \ | |_|_|_|/ / / / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull networking fixes from David Miller: 1) Name string overrun fix in gianfar driver from Joe Perches. 2) VHOST bug fixes from Michael S. Tsirkin and Nadav Har'El 3) Fix dependencies on xt_LOG netfilter module, from Pablo Neira Ayuso. 4) Fix RCU locking in xt_CT, also from Pablo Neira Ayuso. 5) Add a parameter to skb_add_rx_frag() so we can fix the truesize adjustments in the drivers that use it. The individual drivers aren't fixed by this commit, but will be dealt with using follow-on commits. From Eric Dumazet. 6) Add some device IDs to qmi_wwan driver, from Andrew Bird. 7) Fix a potential rcu_read_lock() imbalancein rt6_fill_node(). From Eric Dumazet. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: net: fix a potential rcu_read_lock() imbalance in rt6_fill_node() net: add a truesize parameter to skb_add_rx_frag() gianfar: Fix possible overrun and simplify interrupt name field creation USB: qmi_wwan: Add ZTE (Vodafone) K3570-Z and K3571-Z net interfaces USB: option: Ignore ZTE (Vodafone) K3570/71 net interfaces USB: qmi_wwan: Add ZTE (Vodafone) K3565-Z and K4505-Z net interfaces qlcnic: Bug fix for LRO netfilter: nf_conntrack: permanently attach timeout policy to conntrack netfilter: xt_CT: fix assignation of the generic protocol tracker netfilter: xt_CT: missing rcu_read_lock section in timeout assignment netfilter: cttimeout: fix dependency with l4protocol conntrack module netfilter: xt_LOG: use CONFIG_IP6_NF_IPTABLES instead of CONFIG_IPV6 vhost: fix release path lockdep checks vhost: don't forget to schedule() tools/virtio: stub out strong barriers tools/virtio: add linux/hrtimer.h stub tools/virtio: add linux/module.h stub
| * | | | | | | net: fix a potential rcu_read_lock() imbalance in rt6_fill_node()Eric Dumazet2012-03-281-2/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit f2c31e32b378 (net: fix NULL dereferences in check_peer_redir() ) added a regression in rt6_fill_node(), leading to rcu_read_lock() imbalance. Thats because NLA_PUT() can make a jump to nla_put_failure label. Fix this by using nla_put() Many thanks to Ben Greear for his help Reported-by: Ben Greear <greearb@candelatech.com> Reported-by: Dave Jones <davej@redhat.com> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Tested-by: Ben Greear <greearb@candelatech.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | | | net: add a truesize parameter to skb_add_rx_frag()Eric Dumazet2012-03-251-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | skb_add_rx_frag() API is misleading. Network skbs built with this helper can use uncharged kernel memory and eventually stress/crash machine in OOM. Add a 'truesize' parameter and then fix drivers in followup patches. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | | | Merge branch 'master' of git://1984.lsi.us.es/netDavid S. Miller2012-03-235-53/+95
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