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* ext4: Fix small file fragmentationAneesh Kumar K.V2008-08-18
| | | | | | | | | | For small file block allocations, mballoc uses per cpu prealloc space. Use goal block when searching for the right prealloc space. Also make sure ext4_da_writepages tries to write all the pages for small files in single attempt Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
* ext4: Initialize writeback_index to 0 when allocating a new inodeAneesh Kumar K.V2008-08-19
| | | | | | | | | | | The write_cache_pages() function uses the mapping->writeback_index as the starting index to write out when range_cyclic is set. Properly initialize writeback_index so that we start the writeout at index 0. This was found when debugging the small file fragmentation on ext4. Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
* ext4: make sure ext4_has_free_blocks returns 0 for ENOSPCAneesh Kumar K.V2008-08-19
| | | | | | | | Fix ext4_has_free_blocks() to return 0 when we don't have enough space. Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Mingming Cao <cmm@us.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
* ext4: journal credit fix for the delayed allocation's writepages() functionMingming Cao2008-08-19
| | | | | | | | | | | | | | | | | | | | | | | Previous delalloc writepages implementation started a new transaction outside of a loop which called get_block() to do the block allocation. Since we didn't know exactly how many blocks would need to be allocated, the estimated journal credits required was very conservative and caused many issues. With the reworked delayed allocation, a new transaction is created for each get_block(), thus we don't need to guess how many credits for the multiple chunk of allocation. We start every transaction with enough credits for inserting a single exent. When estimate the credits for indirect blocks to allocate a chunk of blocks, we need to know the number of data blocks to allocate. We use the total number of reserved delalloc datablocks; if that is too big, for non-extent files, we need to limit the number of blocks to EXT4_MAX_TRANS_BLOCKS. Code cleanup from Aneesh. Signed-off-by: Mingming Cao <cmm@us.ibm.com> Reviewed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
* ext4: Rework the ext4_da_writepages() functionAneesh Kumar K.V2008-08-19
| | | | | | | | | | | | | | | | | | | | With the below changes we reserve credit needed to insert only one extent resulting from a call to single get_block. This makes sure we don't take too much journal credits during writeout. We also don't limit the pages to write. That means we loop through the dirty pages building largest possible contiguous block request. Then we issue a single get_block request. We may get less block that we requested. If so we would end up not mapping some of the buffer_heads. That means those buffer_heads are still marked delay. Later in the writepage callback via __mpage_writepage we redirty those pages. We should also not limit/throttle wbc->nr_to_write in the filesystem writepages callback. That cause wrong behaviour in generic_sync_sb_inodes caused by wbc->nr_to_write being <= 0 Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Reviewed-by: Mingming Cao <cmm@us.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
* ext4: journal credits reservation fixes for DIO, fallocateMingming Cao2008-08-19
| | | | | | | | | | | | | | | | | | | DIO and fallocate credit calculation is different than writepage, as they do start a new journal right for each call to ext4_get_blocks_wrap(). This patch uses the helper function in DIO and fallocate case, passing a flag indicating that the modified data are contigous thus could account less indirect/index blocks. This patch also fixed the journal credit reservation for direct I/O (DIO). Previously the estimated credits for DIO only was calculated for non-extent files, which was not enough if the file is extent-based. Also fixed was fallocate double-counting credits for modifying the the superblock. Signed-off-by: Mingming Cao <cmm@us.ibm.com> Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
* ext4: journal credits reservation fixes for extent file writepageMingming Cao2008-08-19
| | | | | | | | | | | | | | | | | This patch modified the writepage/write_begin credit calculation for extent files, to use the credits caculation helper function. The current calculation of how many index/leaf blocks should be accounted is too conservetive, it always considered the worse case, where the tree level is 5, and in the case of multiple chunk allocations, it always assumed no blocks were dirtied in common across the allocations. This path uses the accurate depth of the inode with some extras to calculate the index blocks, and also less conservative in the case of multiple allocation accounting. Signed-off-by: Mingming Cao <cmm@us.ibm.com> Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
* ext4: journal credits calulation cleanup and fix for non-extent writepageMingming Cao2008-08-19
| | | | | | | | | | | | | | | | | | | | | | | | | | When considering how many journal credits are needed for modifying a chunk of data, we need to account for the super block, inode block, quota blocks and xattr block, indirect/index blocks, also, group bitmap and group descriptor blocks for new allocation (including data and indirect/index blocks). There are many places in ext4 do the calculation on their own and often missed one or two meta blocks, and often they assume single block allocation, and did not considering the multile chunk of allocation case. This patch is trying to cleanup current journal credit code, provides some common helper funtion to calculate the journal credits, to be used for writepage, writepages, DIO, fallocate, migration, defrag, and for both nonextent and extent files. This patch modified the writepage/write_begin credit caculation for nonextent files, to use the new helper function. It also fixed the problem that writepage on nonextent files did not consider the case blocksize <pagesize, thus could possibelly need multiple block allocation in a single transaction. Signed-off-by: Mingming Cao <cmm@us.ibm.com> Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
* ext4: Fix bug where we return ENOSPC even though we have plenty of inodesEric Sandeen2008-08-19
| | | | | | | | | | | | | | | | | | | | | The find_group_flex() function starts with best_flex as the parent_fbg_group, which happens to have 0 inodes free. Some of the flex groups searched have free blocks and free inodes, but the flex_freeb_ratio is < 10, so they're skipped. Then when a group is compared to the current "best" flex group, it does not have more free blocks than "best", so it is skipped as well. This continues until no flex group with free inodes is found which has a proper ratio or which has more free blocks than the "best" group, and we're left with a "best" group that has 0 inodes free, and we return -ENOSPC. We fix this by changing the logic so that if the current "best" flex group has no inodes free, and the current one does have room, it is promoted to the next "best." Signed-off-by: Eric Sandeen <sandeen@redhat.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
* ext4: don't try to resize if there are no reserved gdt blocks leftJosef Bacik2008-08-19
| | | | | | | | | | | | | | | When trying to resize an ext4 fs and you run out of reserved gdt blocks, you get an error that doesn't actually tell you what went wrong, it just says that the gdb it picked is not correct, which is the case since you don't have any reserved gdt blocks left. This patch adds a check to make sure you have reserved gdt blocks to use, and if not prints out a more relevant error. Signed-off-by: Josef Bacik <jbacik@redhat.com> Cc: <linux-ext4@vger.kernel.org> Cc: Andreas Dilger <adilger@sun.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
* ext4: Use ext4_discard_reservations instead of mballoc-specific callTheodore Ts'o2008-08-16
| | | | | | | | | In ext4_ext_truncate(), we should use the more generic ext4_discard_reservations() call so we do the right thing when the filesystem is mounted with the nomballoc option. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Reviewed-by: Mingming Cao <cmm@us.ibm.com>
* ext4: Fix ext4_dx_readdir hash collision handlingTheodore Ts'o2008-08-19
| | | | | | | | | This fixes a bug where readdir() would return a directory entry twice if there was a hash collision in an hash tree indexed directory. Signed-off-by: Eugene Dashevsky <eugene@ibrix.com> Signed-off-by: Mike Snitzer <msnitzer@ibrix.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
* ext4: Fix delalloc release block reservation for truncateMingming Cao2008-08-19
| | | | | | | | | | | | | | | | | | Ext4 will release the reserved blocks for delayed allocations when inode is truncated/unlinked. If there is no reserved block at all, we shouldn't need to do so. But current code still tries to release the reserved blocks regardless whether the counters's value is 0. Continue to do that causes the later calculation to go wrong and a kernel BUG_ON() caught that. This doesn't happen for extent-based files, as the calculation for 0 reserved blocks was right for extent based file. This patch fixed the kernel BUG() due to above reason. It adds checks for 0 to avoid unnecessary release and fix calculation for non-extent files. Signed-off-by: Mingming Cao <cmm@us.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
* ext4: Fix potential truncate BUG due to i_prealloc_list being non-emptyTheodore Ts'o2008-08-13
| | | | | | | | | We need to call ext4_discard_reservation() earlier in ext4_truncate(), to avoid a BUG() in ext4_mb_return_to_preallocation(), which is called (ultimately) by ext4_free_blocks(). So we must ditch the blocks on i_prealloc_list before we start freeing the data blocks. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
* ext4: Handle unwritten extent properly with delayed allocationAneesh Kumar K.V2008-08-19
| | | | | | | | | | When using fallocate the buffer_heads are marked unwritten and unmapped. We need to map them in the writepages after a get_block. Otherwise we split the uninit extents, but never write the content to disk. Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Mingming Cao <cmm@us.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
* Linux 2.6.27-rc3v2.6.27-rc3Linus Torvalds2008-08-12
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* Merge branch 'for-2.6.27' of git://linux-nfs.org/~bfields/linuxLinus Torvalds2008-08-12
|\ | | | | | | | | | | | | * 'for-2.6.27' of git://linux-nfs.org/~bfields/linux: fs/nfsd/export.c: Adjust error handling code involving auth_domain_put MAINTAINERS: mention lockd and sunrpc in nfs entries lockd: trivial sparse endian annotations
| * fs/nfsd/export.c: Adjust error handling code involving auth_domain_putJulia Lawall2008-07-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Once clp is assigned, it never becomes NULL, so we can make a label for it in the error handling code. Because the call to path_lookup follows the call to auth_domain_find, its error handling code should jump to this new label. The semantic match that finds this problem is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @r@ expression x,E; statement S; position p1,p2,p3; @@ ( if ((x = auth_domain_find@p1(...)) == NULL || ...) S | x = auth_domain_find@p1(...) ... when != x if (x == NULL || ...) S ) <... if@p3 (...) { ... when != auth_domain_put(x) when != if (x) { ... auth_domain_put(x); ...} return@p2 ...; } ...> ( return x; | return 0; | x = E | E = x | auth_domain_put(x) ) @exists@ position r.p1,r.p2,r.p3; expression x; int ret != 0; statement S; @@ * x = auth_domain_find@p1(...) <... * if@p3 (...) S ...> * return@p2 \(NULL\|ret\); // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
| * MAINTAINERS: mention lockd and sunrpc in nfs entriesJ. Bruce Fields2008-07-23
| | | | | | | | | | | | | | The actual division of labor is a little vague in some of the common code, but if the patches get to one of us then we can sort it out. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
| * lockd: trivial sparse endian annotationsHarvey Harrison2008-07-23
| | | | | | | | | | | | | | | | | | | | | | fs/lockd/svcproc.c:115:11: warning: incorrect type in initializer (different base types) fs/lockd/svcproc.c:115:11: expected int [signed] rc fs/lockd/svcproc.c:115:11: got restricted __be32 [usertype] <noident> ... and so on... Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* | Merge branch 'for-linus' of ↵Linus Torvalds2008-08-12
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: IB/ehca: Discard double CQE for one WR IB/ehca: Check idr_find() return value IB/ehca: Repoll CQ on invalid opcode IB/ehca: Rename goto label in ehca_poll_cq_one() IB/ehca: Update qp_state on cached modify_qp() IPoIB/cm: Use vmalloc() to allocate rx_rings
| * \ Merge branches 'ehca' and 'ipoib' into for-linusRoland Dreier2008-08-12
| |\ \
| | * | IPoIB/cm: Use vmalloc() to allocate rx_ringsDavid J. Wilder2008-08-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are users that are running UDP applications that require a large receive queue size in order to get good performance. To prevent allocation failures for rx_rings when using non-SRQ mode and large recv_queue_size (1K or larger), use vmalloc() instead of kcalloc() to alocate rx_rings. Signed-off-by: David Wilder <dwilder@us.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * | | IB/ehca: Discard double CQE for one WRAlexander Schmidt2008-08-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Under rare circumstances, the ehca hardware might erroneously generate two CQEs for the same WQE, which is not compliant to the IB spec and will cause unpredictable errors like memory being freed twice. To avoid this problem, the driver needs to detect the second CQE and discard it. For this purpose, introduce an array holding as many elements as the SQ of the QP, called sq_map. Each sq_map entry stores a "reported" flag for one WQE in the SQ. When a work request is posted to the SQ, the respective "reported" flag is set to zero. After the arrival of a CQE, the flag is set to 1, which allows to detect the occurence of a second CQE. The mapping between WQE / CQE and the corresponding sq_map element is implemented by replacing the lowest 16 Bits of the wr_id with the index in the queue map. The original 16 Bits are stored in the sq_map entry and are restored when the CQE is passed to the application. Signed-off-by: Alexander Schmidt <alexs@linux.vnet.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * | | IB/ehca: Check idr_find() return valueAlexander Schmidt2008-08-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The idr_find() function may fail when trying to get the QP that is associated with a CQE, e.g. when a QP has been destroyed between the generation of a CQE and the poll request for it. In consequence, the return value of idr_find() must be checked and the CQE must be discarded when the QP cannot be found. Signed-off-by: Alexander Schmidt <alexs@linux.vnet.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * | | IB/ehca: Repoll CQ on invalid opcodeAlexander Schmidt2008-08-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When the ehca driver detects an invalid opcode in a CQE, it currently passes the CQE to the application and returns with success. This patch changes the CQE handling to discard CQEs with invalid opcodes and to continue reading the next CQE from the CQ. Signed-off-by: Alexander Schmidt <alexs@linux.vnet.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * | | IB/ehca: Rename goto label in ehca_poll_cq_one()Alexander Schmidt2008-08-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Rename the "poll_cq_one_read_cqe" goto label to what it actually does, namely "repoll". Signed-off-by: Alexander Schmidt <alexs@linux.vnet.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * | | IB/ehca: Update qp_state on cached modify_qp()Alexander Schmidt2008-08-12
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since the introduction of the port auto-detect mode for ehca, calls to modify_qp() may be cached in the device driver when the ports are not activated yet. When a modify_qp() call is cached, the qp state remains untouched until the port is activated, which will leave the qp in the reset state. In the reset state, however, it is not allowed to post SQ WQEs, which confuses applications like ib_mad. The solution for this problem is to immediately set the qp state as requested by modify_qp(), even when the call is cached. Signed-off-by: Alexander Schmidt <alexs@linux.vnet.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* | | Merge branch 'release' of ↵Linus Torvalds2008-08-12
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: [IA64] use bcd2bin/bin2bcd [IA64] Ensure cpu0 can access per-cpu variables in early boot code
| * | | [IA64] use bcd2bin/bin2bcdAdrian Bunk2008-08-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch changes ia64 to use the new bcd2bin/bin2bcd functions instead of the obsolete BCD2BIN/BIN2BCD macros. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * | | [IA64] Ensure cpu0 can access per-cpu variables in early boot codeTony Luck2008-08-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ia64 handles per-cpu variables a litle differently from other architectures in that it maps the physical memory allocated for each cpu at a constant virtual address (0xffffffffffff0000). This mapping is not enabled until the architecture specific cpu_init() function is run, which causes problems since some generic code is run before this point. In particular when CONFIG_PRINTK_TIME is enabled, the boot cpu will trap on the access to per-cpu memory at the first printk() call so the boot will fail without the kernel printing anything to the console. Fix this by allocating percpu memory for cpu0 in the kernel data section and doing all initialization to enable percpu access in head.S before calling any generic code. Other cpus must take care not to access per-cpu variables too early, but their code path from start_secondary() to cpu_init() is all in arch/ia64 Signed-off-by: Tony Luck <tony.luck@intel.com>
* | | | firmware/memmap: cleanupBernhard Walle2008-08-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Various cleanup the drivers/firmware/memmap (after review by AKPM): - fix kdoc to conform to the standard - move kdoc from header to implementation files - remove superfluous WARN_ON() after kmalloc() - WARN_ON(x); if (!x) -> if(!WARN_ON(x)) - improve some comments Signed-off-by: Bernhard Walle <bwalle@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | ALi M7101 PMU also available on Sun Netra's tooAlexander Clouter2008-08-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | My Sun Netra T1 AC200 has one of these... bit harsh not letting me use it and all :) ========== alex@woodchuck:~$ lspci -nn 00:01.0 PCI bridge [0604]: Sun Microsystems Computer Corp. Simba Advanced PCI Bridge [108e:5000] (rev 13) 00:01.1 PCI bridge [0604]: Sun Microsystems Computer Corp. Simba Advanced PCI Bridge [108e:5000] (rev 13) 01:03.0 Non-VGA unclassified device [0000]: ALi Corporation M7101 Power Management Controller [PMU] [10b9:7101] 01:05.1 Ethernet controller [0200]: Sun Microsystems Computer Corp. RIO GEM [108e:1101] (rev 01) 01:05.3 USB Controller [0c03]: Sun Microsystems Computer Corp. RIO USB [108e:1103] (rev 01) 01:07.0 ISA bridge [0601]: ALi Corporation M1533/M1535 PCI to ISA Bridge [Aladdin IV/V/V+] [10b9:1533] 01:0c.0 Bridge [0680]: Sun Microsystems Computer Corp. RIO EBUS [108e:1100] (rev 01) 01:0c.1 Ethernet controller [0200]: Sun Microsystems Computer Corp. RIO GEM [108e:1101] (rev 01) 01:0c.3 USB Controller [0c03]: Sun Microsystems Computer Corp. RIO USB [108e:1103] (rev 01) 01:0d.0 IDE interface [0101]: ALi Corporation M5229 IDE [10b9:5229] (rev c3) 02:08.0 SCSI storage controller [0100]: LSI Logic / Symbios Logic 53C896/897 [1000:000b] (rev 07) 02:08.1 SCSI storage controller [0100]: LSI Logic / Symbios Logic 53C896/897 [1000:000b] (rev 07) ========== Signed-off-by: Alexander Clouter <alex@digriz.org.uk> Cc: Wim Van Sebroeck <wim@iguana.be> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | Make ioctl.h compatible with userlandMichael Abbott2008-08-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The attached patch seems to already exist in a number of branches -- it keeps popping up on Google for me, and is certainly already in Debian -- but is strangely absent from mainstream. The problem appears to be that the patched file ends up as part of the target toolchain, but unfortunately the gcc constant folding doesn't appear to eliminate the __invalid_size_argument_for_IOC value early enough. Certainly compiling C++ programs which use _IO... macros as constants fails without this patch. Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | docsrc: fix getdelays printk formatsRandy Dunlap2008-08-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix printf format type warnings (seen on alpha & ia64): Documentation/accounting/getdelays.c:206: warning: format '%15llu' expects type 'long long unsigned int', but argument 6 has type '__u64' Documentation/accounting/getdelays.c:206: warning: format '%15llu' expects type 'long long unsigned int', but argument 7 has type '__u64' Documentation/accounting/getdelays.c:206: warning: format '%15llu' expects type 'long long unsigned int', but argument 8 has type '__u64' Documentation/accounting/getdelays.c:206: warning: format '%15llu' expects type 'long long unsigned int', but argument 9 has type '__u64' Documentation/accounting/getdelays.c:206: warning: format '%15llu' expects type 'long long unsigned int', but argument 12 has type '__u64' Documentation/accounting/getdelays.c:206: warning: format '%15llu' expects type 'long long unsigned int', but argument 13 has type '__u64' Documentation/accounting/getdelays.c:206: warning: format '%15llu' expects type 'long long unsigned int', but argument 16 has type '__u64' Documentation/accounting/getdelays.c:206: warning: format '%15llu' expects type 'long long unsigned int', but argument 17 has type '__u64' Documentation/accounting/getdelays.c:214: warning: format '%15llu' expects type 'long long unsigned int', but argument 4 has type '__u64' Documentation/accounting/getdelays.c:214: warning: format '%15llu' expects type 'long long unsigned int', but argument 5 has type '__u64' Documentation/accounting/getdelays.c:221: warning: format '%llu' expects type 'long long unsigned int', but argument 2 has type '__u64' Documentation/accounting/getdelays.c:221: warning: format '%llu' expects type 'long long unsigned int', but argument 3 has type '__u64' Documentation/accounting/getdelays.c:221: warning: format '%llu' expects type 'long long unsigned int', but argument 4 has type '__u64' Documentation/accounting/getdelays.c:221: warning: format '%llu' expects type 'long long unsigned int', but argument 5 has type '__u64' Documentation/accounting/getdelays.c:221: warning: format '%llu' expects type 'long long unsigned int', but argument 6 has type '__u64' Documentation/accounting/getdelays.c:236: warning: 'cmd_type' may be used uninitialized in this function Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: Balbir Singh <balbir@in.ibm.com> Cc: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | docsrc: fix crc32hash typeRandy Dunlap2008-08-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix differing signedness warning: Documentation/pcmcia/crc32hash.c:29: warning: pointer targets in passing argument 1 of 'crc32' differ in signedness Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Acked-by: Dominik Brodowski <linux@dominikbrodowski.net> Cc: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | docsrc: fix ifenslave typeRandy Dunlap2008-08-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Documentation/networking/ifenslave.c:1084: warning: pointer targets in assignment differ in signedness >From include/linux/socket.h: * 1003.1g requires sa_family_t and that sa_data is char. and from SUSv3: (http://www.opengroup.org/onlinepubs/009695399/basedefs/sys/socket.h.html) The <sys/socket.h> header shall define the sockaddr structure that includes at least the following members: sa_family_t sa_family Address family. char sa_data[] Socket address (variable-length data). <end SUSv3> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | docsrc: fix procfs exampleRandy Dunlap2008-08-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add MODULE_LICENSE() to DocBook/procfs_example.c since modpost complained about a missing license there. Remove tty procfs removal since the creation was deleted long ago (http://git.kernel.org/?p=linux/kernel/git/tglx/history.git;a=commitdiff;h=5ad9cb65e9b15e5b83e2dd1c10a4bcaccc4ec644). Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: <J.A.K.Mouw@its.tudelft.nl> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | docsrc: build Documentation/ sourcesRandy Dunlap2008-08-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently source files in the Documentation/ sub-dir can easily bit-rot since they are not generally buildable, either because they are hidden in text files or because there are no Makefile rules for them. This needs to be fixed so that the source files remain usable and good examples of code instead of bad examples. Add the ability to build source files that are in the Documentation/ dir. Add to Kconfig as "BUILD_DOCSRC" config symbol. Use "CONFIG_BUILD_DOCSRC=1 make ..." to build objects from the Documentation/ sources. Or enable BUILD_DOCSRC in the *config system. However, this symbol depends on HEADERS_CHECK since the header files need to be installed (for userspace builds). Built (using cross-tools) for x86-64, i386, alpha, ia64, sparc32, sparc64, powerpc, sh, m68k, & mips. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Reviewed-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | byteorder: add include/linux/byteorder.h to define endian helpersHarvey Harrison2008-08-12
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | byteorder: add a new include/linux/swab.h to define byteswapping functionsHarvey Harrison2008-08-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Collect the implementations from include/linux/byteorder/swab.h, swabb.h in swab.h The functionality provided covers: u16 swab16(u16 val) - return a byteswapped 16 bit value u32 swab32(u32 val) - return a byteswapped 32 bit value u64 swab64(u64 val) - return a byteswapped 64 bit value u32 swahw32(u32 val) - return a wordswapped 32 bit value u32 swahb32(u32 val) - return a high/low byteswapped 32 bit value Similar to above, but return swapped value from a naturally-aligned pointer u16 swab16p(u16 *p) u32 swab32p(u32 *p) u64 swab64p(u64 *p) u32 swahw32p(u32 *p) u32 swahb32p(u32 *p) Similar to above, but swap the value in-place (in-situ) void swab16s(u16 *p) void swab32s(u32 *p) void swab64s(u64 *p) void swahw32s(u32 *p) void swahb32s(u32 *p) Arches can override any of these with an optimized version by defining an inline in their asm/byteorder.h (example given for swab16()): u16 __arch_swab16() {} #define __arch_swab16 __arch_swab16 Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | genirq: switch /proc/irq/*/smp_affinity et al to seqfilesAlexey Dobriyan2008-08-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Switch /proc/irq/*/smp_affinity , /proc/irq/default_smp_affinity to seq_files. cat(1) reads with 1024 chunks by default, with high enough NR_CPUS, there will be -EINVAL. As side effect, there are now two less users of the ->read_proc interface. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Cc: Paul Jackson <pj@sgi.com> Cc: Mike Travis <travis@sgi.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | seq_file: add seq_cpumask(), seq_nodemask()Alexey Dobriyan2008-08-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Short enough reads from /proc/irq/*/smp_affinity return -EINVAL for no good reason. This became noticed with NR_CPUS=4096 patches, when length of printed representation of cpumask becase 1152, but cat(1) continued to read with 1024-byte chunks. bitmap_scnprintf() in good faith fills buffer, returns 1023, check returns -EINVAL. Fix it by switching to seq_file, so handler will just fill buffer and doesn't care about offsets, length, filling EOF and all this crap. For that add seq_bitmap(), and wrappers around it -- seq_cpumask() and seq_nodemask(). Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Reviewed-by: Paul Jackson <pj@sgi.com> Cc: Mike Travis <travis@sgi.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | reiserfs: removed duplicated #includeHuang Weiyi2008-08-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Removed duplicated #include <linux/quotaops.h> in fs/reiserfs/super.c. Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com> Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | fs/eventpoll.c: fix sys_epoll_create1() commentAndrew Morton2008-08-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The `size' argument was removed. Reported-by: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Ulrich Drepper <drepper@redhat.com> Cc: Davide Libenzi <davidel@xmailserver.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | drivers/char/rtc.c: removed duplicated includeHuang Weiyi2008-08-12
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | mm/sparse.c: removed duplicated includeHuang Weiyi2008-08-12
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | move kernel-doc comment for might_sleep directly before its defining blockUwe Kleine-König2008-08-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Uwe Kleine-König <Uwe.Kleine-Koenig@digi.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | lib/vsprintf.c: wrong conversion function usedYi Yang2008-08-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix wrong conversion function used by strict_strtou* Signed-off-by: Yi Yang <yi.y.yang@intel.com> Reported-by: Swen Schillig <swen@vnet.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | fbcon: prevent cursor disappearance after switching to 512 character fontKrzysztof Helt2008-08-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adjust and honor the vc_scrl_erase_char for 256 and 512 character fonts. It fixes the issue with disappearing cursor during scrolling (http://bugzilla.kernel.org/show_bug.cgi?id=11258). The issue was reported and tracked by Peter Hanzel. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Reported-by: Peter Hanzel <hanzelpeter@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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