- 04 Feb, 2008 5 commits
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Christoph Lameter authored
Add a parameter to add_partial instead of having separate functions. The parameter allows a more detailed control of where the slab pages is placed in the partial queues. If we put slabs back to the front then they are likely immediately used for allocations. If they are put at the end then we can maximize the time that the partial slabs spent without being subject to allocations. When deactivating slab we can put the slabs that had remote objects freed (we can see that because objects were put on the freelist that requires locks) to them at the end of the list so that the cachelines of remote processors can cool down. Slabs that had objects from the local cpu freed to them (objects exist in the lockless freelist) are put in the front of the list to be reused ASAP in order to exploit the cache hot state of the local cpu. Patch seems to slightly improve tbench speed (1-2%). Signed-off-by:
Christoph Lameter <clameter@sgi.com> Reviewed-by:
Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org>
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Christoph Lameter authored
The NUMA defrag works by allocating objects from partial slabs on remote nodes. Rename it to remote_node_defrag_ratio to be clear about this. Signed-off-by:
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Christoph Lameter authored
Move the counting function for objects in partial slabs so that it is placed before kmem_cache_shrink. Signed-off-by:
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Christoph Lameter authored
If CONFIG_SYSFS is set then free the kmem_cache structure when sysfs tells us its okay. Otherwise there is the danger (as pointed out by Al Viro) that sysfs thinks the kobject still exists after kmem_cache_destroy() removed it. Signed-off-by:
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Harvey Harrison authored
Introduce 'len' at outer level: mm/slub.c:3406:26: warning: symbol 'n' shadows an earlier one mm/slub.c:3393:6: originally declared here No need to declare new node: mm/slub.c:3501:7: warning: symbol 'node' shadows an earlier one mm/slub.c:3491:6: originally declared here No need to declare new x: mm/slub.c:3513:9: warning: symbol 'x' shadows an earlier one mm/slub.c:3492:6: originally declared here Signed-off-by:
Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by:
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- 02 Feb, 2008 35 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6Linus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6: (95 commits) ide-tape: remove idetape_config_t typedef ide-tape: remove mtio.h related comments ide-tape: make function name more accurate ide-tape: remove unused sense packet commands. ide-tape: use generic byteorder macros ide-tape: remove EXPERIMENTAL driver status ide-tape: use generic scsi commands ide-tape: remove struct idetape_block_size_page_t ide-tape: remove structs os_partition_t, os_dat_entry_t, os_dat_t ide-tape: remove struct idetape_parameter_block_descriptor_t ide-tape: remove struct idetape_medium_partition_page_t ide-tape: remove struct idetape_data_compression_page_t ide-tape: remove struct idetape_inquiry_result_t ide-tape: remove struct idetape_capabilities_page_t ide-tape: remove IDETAPE_DEBUG_BUGS ide-tape: remove IDETAPE_DEBUG_INFO ide-tape: dump gcw fields on error in idetape_identify_device() ide-tape: remove struct idetape_mode_parameter_header_t ide-tape: remove struct idetape_request_sense_result_t ide-tape: remove dead code ...
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Nick Piggin authored
Frederik Himpe reported an unkillable and un-straceable pan process. Zero length iovecs can go into an infinite loop in writev, because the iovec iterator does not always advance over them. The sequence required to trigger this is not trivial. I think it requires that a zero-length iovec be followed by a non-zero-length iovec which causes a pagefault in the atomic usercopy. This causes the writev code to drop back into single-segment copy mode, which then tries to copy the 0 bytes of the zero-length iovec; a zero length copy looks like a failure though, so it loops. Put a test into iov_iter_advance to catch zero-length iovecs. We could just put the test in the fallback path, but I feel it is more robust to skip over zero-length iovecs throughout the code (iovec iterator may be used in filesystems too, so it should be robust). Signed-off-by:
Nick Piggin <npiggin@suse.de> Signed-off-by:
Ingo Molnar <mingo@elte.hu> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6Linus Torvalds authored
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6: ieee1394: sbp2: fix bogus s/g access change
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Borislav Petkov authored
Since this is used only in idetape_blkdev_ioctl(), remove the typedef and make the struct function-local. Bart: - s/sizeof(struct idetape_config)/sizeof(config)/ Signed-off-by:
Borislav Petkov <bbpetkov@yahoo.de> Signed-off-by:
Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Borislav Petkov authored
Those are already in mtio.h. Bart: - undo 'unsigned int/unsigned long' -> 'uint/ulong' conversion Signed-off-by:
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Borislav Petkov authored
idetape_active_next_stage() was rather ambiguous wrt its purpose. Make that more explicit and remove superfluous comment. Signed-off-by:
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Borislav Petkov authored
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Borislav Petkov authored
This is not a network driver. Signed-off-by:
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Borislav Petkov authored
ide-tape has depended on EXPERIMENTAL for ages. Change that since the driver is being only maintained now. Signed-off-by:
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Borislav Petkov authored
Also, remove those which weren't used. Signed-off-by:
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Borislav Petkov authored
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Borislav Petkov authored
They seem just to sit there completely unused. Signed-off-by:
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Borislav Petkov authored
Also, shorten function name idetape_get_blocksize_from_block_descriptor() and move its definition up thereby getting rid of its forward declaration. Signed-off-by:
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Borislav Petkov authored
There should be no functional changes resulting from this patch. Signed-off-by:
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Borislav Petkov authored
There should be no functional changes resulting from this patch. Signed-off-by:
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Borislav Petkov authored
There should be no functional changes resulting from this patch. Signed-off-by:
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Borislav Petkov authored
All those 2-byte values denoting the different capabilities are being written to the local copy of the caps buffer without being converted to big endian for simplicity of usage and shorter code later. Also, we add some comments stating which are the fields of the caps page in question in order to alleviate the cryptic pointer casting exercises as in e.g. idetape_get_mode_sense_results(). There should be no functional changes resulting from this patch. Bart: - remove two needless "!!" Signed-off-by:
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Borislav Petkov authored
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Borislav Petkov authored
The device capabilities are probed for during device initialization so this info is available through proc/ioctl() und it is redundant here. Signed-off-by:
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Bartlomiej Zolnierkiewicz authored
Cc: Borislav Petkov <bbpetkov@yahoo.de> Signed-off-by: -
Borislav Petkov authored
Bart: - remove 'capabilities->speed' chunk - re-add brackets to block_descrp assignment Signed-off-by:
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Borislav Petkov authored
Bart: - remove unnecessary comment change - remove two needless "!!" Signed-off-by:
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Borislav Petkov authored
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Borislav Petkov authored
Also, cleanup whitespace and update comments. Bart: - remove reference to drivers/block/ide.c - move driver documentation to Documentation/ide/ide-tape.txt Signed-off-by:
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Bartlomiej Zolnierkiewicz authored
No reason to use ide_init_hwif_ports() in ide-cs (as a nice side-effect this makes ide-cs work on archs that don't define IDE_ARCH_OBSOLETE_INIT). Signed-off-by: -
Bartlomiej Zolnierkiewicz authored
* Move check_dma_crc() to ide-dma.c and add inline version for CONFIG_BLK_DEV_IDEDMA=n case. * Rename check_dma_crc() to ide_check_dma_crc(). Signed-off-by: -
Bartlomiej Zolnierkiewicz authored
While at it: * Remove needless '!drive->crc_count' check. Acked-by:
Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by:
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Bartlomiej Zolnierkiewicz authored
Acked-by:
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Bartlomiej Zolnierkiewicz authored
Acked-by:
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Bartlomiej Zolnierkiewicz authored
Acked-by:
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Bartlomiej Zolnierkiewicz authored
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Bartlomiej Zolnierkiewicz authored
SELECT_DRIVE() is called by IDE core code in start_request() before device driver's ->do_request method. In ide-scsi case ->do_request is implemented by idescsi_do_request() which is also the only user of idescsi_issue_pc(). Signed-off-by: -
Bartlomiej Zolnierkiewicz authored
* Use __ide_set_handler() in ide_execute_command(). While at it: * Fix whitespace damage in ide_execute_command(). Acked-by:
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Bartlomiej Zolnierkiewicz authored
* siimage.c: use hwif->sata_scr[SATA_{ERROR,STATUS}_OFFSET] instead of SATA_{ERROR,STATUS}_REG macros. * Remove no longer needed SATA_*_REG macros. While at it: * Remove needless SATA Status register read from sil_sata_reset_poll(). Signed-off-by: -
Bartlomiej Zolnierkiewicz authored
* ->nice0 and ->nice2 ide_drive_t fields are always zero so remove them. * IDE_NICE_0 and IDE_NICE_2 defines from <linux/hdreg.h> are no longer used by any kernel code so cover them with #ifndef/#endif __KERNEL__. Acked-by:
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