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* genksyms: Use same type in loop comparisonJesper Juhl2011-07-251-1/+1
| | | | | | | | | | | | The ARRAY_SIZE macro in scripts/genksyms/genksyms.c returns a value of type size_t. That value is being compared to a variable of type int in a loop in read_node(). Change the int variable to size_t type as well, so we don't do signed vs unsigned type comparisons with all the potential promotion/sign extension trouble that can cause (also silences compiler warnings at high levels of warnings). Signed-off-by: Jesper Juhl <jj@chaosbits.net> Signed-off-by: Michal Marek <mmarek@suse.cz>
* kbuild: silence generated makefile messagePeter Foley2011-07-201-1/+8
| | | | | | | | This patch silences the "make -C /usr/src/git O=/usr/src/git/build/." message shown when using the generated makefile in KBUILD_OUTDIR. Signed-off-by: Peter Foley <pefoley2@verizon.net> Signed-off-by: Michal Marek <mmarek@suse.cz>
* kernel: prevent unnecessary rebuilding due to config_data.gzPeter Foley2011-07-201-3/+2
| | | | | | | | | | | When IKCONFIG is built-in make oldconfig will cause the kernel to be relinked even if .config didn't change. This happens because of a config_data.gz dependency on .config. This patch changes the if_changed to a filechk so that config_data.h is only rebuilt when the contents have actually changed. Signed-off-by: Peter Foley <pefoley2@verizon.net> Signed-off-by: Michal Marek <mmarek@suse.cz>
* headers_install: fix __packed in exported kernel headersMarkus Trippelsdorf2011-06-241-0/+1
| | | | | | | | | | | | | | | | | | | | | | checkpatch.pl warns about using __attribute__((packed)) in kernel headers: "__packed is preferred over __attribute__((packed))". If one follows that advice it could cause problems in the exported header files, because the outside world doesn't know about this shortcut. For example busybox will fail to compile: CC miscutils/ubi_attach_detach.o In file included from miscutils/ubi_attach_detach.c:27:0: /usr/include/mtd/ubi-user.h:330:3: error: conflicting types for ‘__packed’ /usr/include/mtd/ubi-user.h:314:3: note: previous declaration of ‘__packed’ was here ... Fix the problem by substituting __packed with __attribute__((packed)) in the header_install.pl script. Cc: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> CC: Joe Perches <joe@perches.com> Signed-off-by: Markus Trippelsdorf <markus@trippelsdorf.de> Signed-off-by: Michal Marek <mmarek@suse.cz>
* Merge branch 'kbuild-implicit-parser-rule' of ↵Michal Marek2011-06-2323-1043/+370
|\ | | | | | | git://github.com/lacombar/linux-2.6 into kbuild/kbuild
| * dtc: regen parserArnaud Lacombe2011-06-093-161/+25
| | | | | | | | | | Cc: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
| * dtc: migrate parser to implicit rulesArnaud Lacombe2011-06-091-27/+1
| | | | | | | | | | Cc: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
| * kconfig: regen parserArnaud Lacombe2011-06-094-173/+200
| | | | | | | | Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
| * kconfig: migrate parser to implicit rulesArnaud Lacombe2011-06-093-27/+5
| | | | | | | | Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
| * kconfig/zconf.l: do not ask to generate backupArnaud Lacombe2011-06-091-2/+2
| | | | | | | | | | | | | | This avoids the creation of a top-level `lex.backup' when the lexer gets re-generated. Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
| * kconfig: kill no longer needed reference to YYDEBUGArnaud Lacombe2011-06-092-10/+0
| | | | | | | | Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
| * kconfig: constify `kconf_id_lookup'Arnaud Lacombe2011-06-094-8/+8
| | | | | | | | Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
| * genksym: regen parserArnaud Lacombe2011-06-094-586/+74
| | | | | | | | Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
| * genksyms: migrate parser to implicit rulesArnaud Lacombe2011-06-093-48/+9
| | | | | | | | Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
| * genksyms: drop -Wno-uninitialized from HOSTCFLAGS_parse.tab.oArnaud Lacombe2011-06-091-1/+1
| | | | | | | | Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
| * genksyms: pass hash and lookup functions name and target language though the ↵Arnaud Lacombe2011-06-091-0/+3
| | | | | | | | | | | | | | | | | | | | input file Renaming hash and lookup functions on the command line would reduces its genericity. Use the .gperf file to pass this information. Do the same for the target language. Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
| * kbuild: simplify the %_shipped ruleArnaud Lacombe2011-06-091-1/+1
| | | | | | | | | | | | | | This is needed to have make(1) correctly link the implicit rules which generate the _shipped file from the lexer/parser to the final file. Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
| * kbuild: add implicit rules for parser generationArnaud Lacombe2011-06-091-0/+38
| | | | | | | | | | | | Cc: David Gibson <david@gibson.dropbear.id.au> Cc: Michal Marek <mmarek@suse.cz> Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
| * kbuild: add `baseprereq'Arnaud Lacombe2011-06-091-0/+4
| | | | | | | | | | | | | | On the same model as `basetarget', it represents the filename of first prerequisite with directory and extension stripped. Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
* | Merge commit 'v3.0-rc1' into kbuild/kbuildMichal Marek2011-06-079559-439484/+524820
|\ \ | |/
| * Linux 3.0-rc1v3.0-rc1Linus Torvalds2011-05-291-5/+5
| | | | | | | | | | | | | | | | | | | | .. 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: Linus Torvalds <torvalds@linux-foundation.org>
| * Merge branch 'for-linus' of ↵Linus Torvalds2011-05-296-263/+220
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/ecryptfs/ecryptfs-2.6 * '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
| | * eCryptfs: Remove ecryptfs_header_cache_2Tyler Hicks2011-05-293-13/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | 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: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
| | * eCryptfs: Cleanup and optimize ecryptfs_lookup_interpose()Tyler Hicks2011-05-293-105/+88
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
| | * eCryptfs: Return useful code from contains_ecryptfs_markerTyler Hicks2011-05-291-16/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
| | * eCryptfs: Fix new inode race conditionTyler Hicks2011-05-295-28/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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=36002 Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com> Reported-by: David <david@unsolicited.net> Tested-by: David <david@unsolicited.net>
| | * eCryptfs: Cleanup inode initialization codeTyler Hicks2011-05-292-68/+69
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The eCryptfs inode get, initialization, and dentry interposition code has two separate paths. One is for when dentry interposition is needed after doing things like a mkdir in the lower filesystem and the other is needed after a lookup. Unlocking new inodes and doing a d_add() needs to happen at different times, depending on which type of dentry interposing is being done. This patch cleans up the inode get and initialization code paths and splits them up so that the locking and d_add() differences mentioned above can be handled appropriately in a later patch. Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com> Tested-by: David <david@unsolicited.net>
| | * eCryptfs: Consolidate inode functions into inode.cTyler Hicks2011-05-294-107/+91
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | These functions should live in inode.c since their focus is on inodes and they're primarily used by functions in inode.c. Also does a simple cleanup of ecryptfs_inode_test() and rolls ecryptfs_init_inode() into ecryptfs_inode_set(). Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com> Tested-by: David <david@unsolicited.net>
| * | Merge branch 'pnfs-submit' of git://git.open-osd.org/linux-open-osdLinus Torvalds2011-05-2932-279/+3907
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * '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 ...
| | * | pnfs-obj: pg_test check for max_io_sizeBoaz Harrosh2011-05-291-1/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: Boaz Harrosh <bharrosh@panasas.com> [simplify logic] Signed-off-by: Benny Halevy <bhalevy@panasas.com>
| | * | NFSv4.1: define nfs_generic_pg_testBoaz Harrosh2011-05-291-24/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: Boaz Harrosh <bharrosh@panasas.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com>
| | * | NFSv4.1: use pnfs_generic_pg_test directly by layout driverBenny Halevy2011-05-294-19/+17
| | | | | | | | | | | | | | | | Signed-off-by: Benny Halevy <bhalevy@panasas.com>
| | * | NFSv4.1: change pg_test return type to boolBenny Halevy2011-05-296-23/+22
| | | | | | | | | | | | | | | | Signed-off-by: Benny Halevy <bhalevy@panasas.com>
| | * | NFSv4.1: unify pnfs_pageio_init functionsBenny Halevy2011-05-295-54/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: Boaz Harrosh <bharrosh@panasas.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com>
| | * | pnfs-obj: objlayout_encode_layoutcommit implementationBoaz Harrosh2011-05-293-0/+61
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 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: Boaz Harrosh <bharrosh@panasas.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com>
| | * | pnfs: encode_layoutcommitBenny Halevy2011-05-292-3/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: Benny Halevy <bhalevy@panasas.com>
| | * | pnfs-obj: report errors and .encode_layoutreturn Implementation.Boaz Harrosh2011-05-293-2/+297
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: Boaz Harrosh <bharrosh@panasas.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com>
| | * | pnfs: encode_layoutreturnAndy Adamson2011-05-292-2/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: Andy Adamson <andros@netapp.com> [fixup layout header pointer for encode_layoutreturn] Signed-off-by: Benny Halevy <bhalevy@panasas.com>
| | * | pnfs: layoutret_on_setattrBenny Halevy2011-05-293-0/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: Benny Halevy <bhalevy@panasas.com>
| | * | pnfs: layoutreturnBenny Halevy2011-05-297-7/+274
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | NFSv4.1 LAYOUTRETURN implementation Currently, does not support layout-type payload encoding. Signed-off-by: Alexandros Batsakis <batsakis@netapp.com> Signed-off-by: Andy Adamson <andros@citi.umich.edu> Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Dean Hildebrand <dhildeb@us.ibm.com> Signed-off-by: Fred Isaman <iisaman@citi.umich.edu> Signed-off-by: Fred Isaman <iisaman@netapp.com> Signed-off-by: Marc Eshel <eshel@almaden.ibm.com> Signed-off-by: Zhang 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: Benny Halevy <bhalevy@panasas.com>
| | * | pnfs-obj: osd raid engine read/write implementationBoaz Harrosh2011-05-293-0/+901
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: Boaz Harrosh <bharrosh@panasas.com> [gfp_flags] Signed-off-by: Benny Halevy <bhalevy@panasas.com>
| | * | pnfs: support for non-rpc layout driversBenny Halevy2011-05-295-4/+62
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Non-rpc layout driver such as for objects and blocks implement their own I/O path and error handling logic. Therefore bypass NFS-based error handling for these layout drivers. [fix lseg ref-count bugs, and null de-refs] [Fall out from: non-rpc layout drivers] Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> [get rid of PNFS_USE_RPC_CODE] [get rid of __nfs4_write_done_cb] [revert useless change in nfs4_write_done_cb] Signed-off-by: Benny Halevy <bhalevy@panasas.com>
| | * | pnfs-obj: define per-inode private structureBenny Halevy2011-05-293-0/+46
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | allocate and deallocate per-inode private pnfs_layout_hdr in preparation for I/O implementation. Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com>
| | * | pnfs: alloc and free layout_hdr layoutdriver methodsBenny Halevy2011-05-292-3/+22
| | | | | | | | | | | | | | | | | | | | [gfp_flags] Signed-off-by: Benny Halevy <bhalevy@panasas.com>
| | * | pnfs-obj: objio_osd device information retrieval and cachingBoaz Harrosh2011-05-293-0/+233
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When a new layout is received in objio_alloc_lseg all device_ids referenced are retrieved. The device information is queried for from MDS and then the osd_device is looked-up from the osd-initiator library. The devices are cached in a per-mount-point list, for later use. At unmount all devices are "put" back to the library. objlayout_get_deviceinfo(), objlayout_put_deviceinfo() middleware API for retrieving device information given a device_id. TODO: The device cache can get big. Cap its size. Keep an LRU and start to return devices which were not used, when list gets to big, or when new entries allocation fail. [pnfs-obj: Bugs in new global-device-cache code] Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> [gfp_flags] [use global device cache] [use layout driver in global device cache] Signed-off-by: Benny Halevy <bhalevy@panasas.com>
| | * | pnfs-obj: decode layout, alloc/free lsegBoaz Harrosh2011-05-294-2/+341
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | objlayout_alloc_lseg prepares an xdr_stream and calls the raid engins objio_alloc_lseg() to allocate a private pnfs_layout_segment. objio_osd.c::objio_alloc_lseg() uses passed xdr_stream to decode and store the layout_segment information in an objio_segment struct, using the pnfs_osd_xdr.h API for the actual parsing the layout xdr. objlayout_free_lseg calls objio_free_lseg() to free the allocated space. Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> [gfp_flags] [removed "extern" from function definitions] Signed-off-by: Benny Halevy <bhalevy@panasas.com>
| | * | pnfs-obj: pnfs_osd XDR client implementationBoaz Harrosh2011-05-292-1/+413
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Add the fs/nfs/objlayout/pnfs_osd_xdr_cli.c file, which will include the XDR encode/decode implementations for the pNFS client objlayout driver. [Wrong type in comments] Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com>
| | * | pnfs-obj: pnfs_osd XDR definitionsBenny Halevy2011-05-291-0/+345
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Add the pnfs_osd_xdr.h header * defintions the pnfs_osd_layout structure including all it's sub-types and constants. * Declare the pnfs_osd_xdr_decode_layout API + all needed inline helpers. * Define the pnfs_osd_deviceaddr structure and all its subtypes and constants. * Declare API for decoding of a pnfs_osd_deviceaddr from XDR stream. * Define the pnfs_osd_ioerr structure, its substructures and constants. * Declare API for encoding of a pnfs_osd_ioerr into XDR stream. * Define the pnfs_osd_layoutupdate structure and its substructures. * Declare API for encoding of a pnfs_osd_layoutupdate into XDR stream. [Remove server definitions] Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com>
| | * | pnfs-obj: objlayoutdriver module skeletonBenny Halevy2011-05-294-0/+93
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Define the PNFS_OBJLAYOUT Kconfig option in the nfs master Kconfig file. * Add the objlayout driver to the Kernel's Kbuild system. * Add the fs/nfs/objlayout/Kbuild file for building the objlayoutdriver.ko driver * Define fs/nfs/objlayout/objio_osd.c, register the driver on module initialization and unregister on exit. [pnfs-obj: remove of CONFIG_PNFS fallout] Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> [added "unsure" clause] [depend on NFS_V4_1] Signed-off-by: Benny Halevy <bhalevy@panasas.com>
| | * | pnfs: client statsJ. Bruce Fields2011-05-291-0/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A pNFS client auto-negotiates a lot of features (minorversion level, pNFS layout type, etc.). This is convenient, but makes certain kinds of failures hard for a user to detect. For example, if the client falls back on 4.0, or falls back to MDS IO because the user didn't connect to the right iscsi disks before mounting, the only symptoms may be reduced performance, which may not be noticed till long after the actual failure, and may be difficult for a user to diagnose. However, such "failures" may also be perfectly normal in some cases, so we don't want to spam the system logs with them. One approach would be to put some more information into /proc/self/mountstats. Signed-off-by: J. Bruce Fields <bfields@fieldses.org> Signed-off-by: Benny Halevy <bhalevy@panasas.com> [pnfs: add commit client stats] [fixup data types for "ret" variables in pnfs_try_to* inline funcs.] Signed-off-by: Benny Halevy <bhalevy@panasas.com> [fix definition of show_pnfs for !CONFIG_PNFS] Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfs41: Fix show_sessions in the not CONFIG_NFS_V4_1 case] There is a build error when CONFIG_NFS_V4 is set but CONFIG_NFS_V4_1 is *not* set. show_sessions() prototype was unbalanced between the two cases. Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> [pnfs: super.c remove CONFIG_PNFS] Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com>
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