1. 20 Sep, 2010 1 commit
    • Corrado Zoccolo's avatar
      cfq: improve fsync performance for small files · 749ef9f8
      Corrado Zoccolo authored
      Fsync performance for small files achieved by cfq on high-end disks is
      lower than what deadline can achieve, due to idling introduced between
      the sync write happening in process context and the journal commit.
      
      Moreover, when competing with a sequential reader, a process writing
      small files and fsync-ing them is starved.
      
      This patch fixes the two problems by:
      - marking journal commits as WRITE_SYNC, so that they get the REQ_NOIDLE
        flag set,
      - force all queues that have REQ_NOIDLE requests to be put in the noidle
        tree.
      
      Having the queue associated to the fsync-ing process and the one associated
       to journal commits in the noidle tree allows:
      - switching between them without idling,
      - fairness vs. competing idling queues, since they will be serviced only
        after the noidle tree expires its slice.
      Acked-by: default avatarVivek Goyal <vgoyal@redhat.com>
      Reviewed-by: default avatarJeff Moyer <jmoyer@redhat.com>
      Tested-by: default avatarJeff Moyer <jmoyer@redhat.com>
      Signed-off-by: default avatarCorrado Zoccolo <czoccolo@gmail.com>
      Signed-off-by: default avatarJens Axboe <jaxboe@fusionio.com>
      749ef9f8
  2. 17 Sep, 2010 1 commit
    • Jens Axboe's avatar
      do_mounts: only enable PARTUUID for CONFIG_BLOCK · 6d0aed7a
      Jens Axboe authored
      When CONFIG_BLOCK is not enabled:
      
      init/do_mounts.c:71: error: implicit declaration of function 'dev_to_part'
      init/do_mounts.c:71: warning: initialization makes pointer from integer without a cast
      init/do_mounts.c:73: error: dereferencing pointer to incomplete type
      init/do_mounts.c:76: error: dereferencing pointer to incomplete type
      init/do_mounts.c:76: error: dereferencing pointer to incomplete type
      init/do_mounts.c:102: error: implicit declaration of function 'part_pack_uuid'
      init/do_mounts.c:104: error: 'block_class' undeclared (first use in this function)
      Reported-by: default avatarRandy Dunlap <randy.dunlap@oracle.com>
      Signed-off-by: default avatarJens Axboe <jaxboe@fusionio.com>
      6d0aed7a
  3. 16 Sep, 2010 10 commits
  4. 15 Sep, 2010 4 commits
    • Will Drewry's avatar
      init: add support for root devices specified by partition UUID · b5af921e
      Will Drewry authored
      This is the third patch in a series which adds support for
      storing partition metadata, optionally, off of the hd_struct.
      
      One major use for that data is being able to resolve partition
      by other identities than just the index on a block device.  Device
      enumeration varies by platform and there's a benefit to being able
      to use something like EFI GPT's GUIDs to determine the correct
      block device and partition to mount as the root.
      
      This change adds that support to root= by adding support for
      the following syntax:
      
        root=PARTUUID=hex-uuid
      Signed-off-by: default avatarWill Drewry <wad@chromium.org>
      Signed-off-by: default avatarJens Axboe <jaxboe@fusionio.com>
      b5af921e
    • Will Drewry's avatar
      genhd, efi: add efi partition metadata to hd_structs · eec7ecfe
      Will Drewry authored
      This change extends the partition_meta_info structure to
      support EFI GPT-specific metadata and ensures that data
      is copied in on partition scanning.
      Signed-off-by: default avatarWill Drewry <wad@chromium.org>
      Signed-off-by: default avatarJens Axboe <jaxboe@fusionio.com>
      eec7ecfe
    • Will Drewry's avatar
      block, partition: add partition_meta_info to hd_struct · 6d1d8050
      Will Drewry authored
      I'm reposting this patch series as v4 since there have been no additional
      comments, and I cleaned up one extra bit of unneeded code (in 3/3). The patches
      are against Linus's tree: 2bfc96a1
      (2.6.36-rc3).
      
      Would this patchset be suitable for inclusion in an mm branch?
      
      This changes adds a partition_meta_info struct which itself contains a
      union of structures that provide partition table specific metadata.
      
      This change leaves the union empty. The subsequent patch includes an
      implementation for CONFIG_EFI_PARTITION-based metadata.
      Signed-off-by: default avatarWill Drewry <wad@chromium.org>
      Signed-off-by: default avatarJens Axboe <jaxboe@fusionio.com>
      6d1d8050
    • Namhyung Kim's avatar
      block: fix an address space warning in blk-map.c · 14417799
      Namhyung Kim authored
      Change type of 2nd parameter of blk_rq_aligned() into unsigned long
      and remove unnecessary casting. Now we can call it with 'uaddr'
      instead of 'ubuf' in __blk_rq_map_user() so that it can remove
      following warnings from sparse:
      
       block/blk-map.c:57:31: warning: incorrect type in argument 2 (different address spaces)
       block/blk-map.c:57:31:    expected void *addr
       block/blk-map.c:57:31:    got void [noderef] <asn:1>*ubuf
      
      However blk_rq_map_kern() needs one more local variable to handle it.
      Signed-off-by: default avatarNamhyung Kim <namhyung@gmail.com>
      Signed-off-by: default avatarJens Axboe <jaxboe@fusionio.com>
      14417799
  5. 14 Sep, 2010 1 commit
  6. 10 Sep, 2010 3 commits
  7. 23 Aug, 2010 1 commit
  8. 22 Aug, 2010 12 commits
  9. 21 Aug, 2010 6 commits
  10. 20 Aug, 2010 1 commit