1. 17 Oct, 2005 1 commit
  2. 22 Sep, 2005 1 commit
  3. 10 Sep, 2005 1 commit
  4. 09 Sep, 2005 1 commit
  5. 19 Aug, 2005 2 commits
  6. 18 Aug, 2005 3 commits
    • Chuck Lever's avatar
      [PATCH] NFS: Introduce the use of inode->i_lock to protect fields in nfsi · dc59250c
      Chuck Lever authored
      
      
      Down the road we want to eliminate the use of the global kernel lock entirely
      from the NFS client.  To do this, we need to protect the fields in the
      nfs_inode structure adequately.  Start by serializing updates to the
      "cache_validity" field.
      
      Note this change addresses an SMP hang found by njw@osdl.org, where processes
      deadlock because nfs_end_data_update and nfs_revalidate_mapping update the
      "cache_validity" field without proper serialization.
      
      Test plan:
       Millions of fsx ops on SMP clients.  Run Nick Wilson's breaknfs program on
       large SMP clients.
      Signed-off-by: default avatarChuck Lever <cel@netapp.com>
      Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      dc59250c
    • Chuck Lever's avatar
      [PATCH] NFS: use atomic bitops to manipulate flags in nfsi->flags · 412d582e
      Chuck Lever authored
      
      
      Introduce atomic bitops to manipulate the bits in the nfs_inode structure's
      "flags" field.
      
      Using bitops means we can use a generic wait_on_bit call instead of an ad hoc
      locking scheme in fs/nfs/inode.c, so we can remove the "nfs_i_wait" field from
      nfs_inode at the same time.
      
      The other new flags field will continue to use bitmask and logic AND and OR.
      This permits several flags to be set at the same time efficiently.  The
      following patch adds a spin lock to protect these flags, and this spin lock
      will later cover other fields in the nfs_inode structure, amortizing the cost
      of using this type of serialization.
      
      Test plan:
       Millions of fsx ops on SMP clients.
      Signed-off-by: default avatarChuck Lever <cel@netapp.com>
      Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      412d582e
    • Chuck Lever's avatar
      [PATCH] NFS: split nfsi->flags into two fields · 55296809
      Chuck Lever authored
      
      
      Certain bits in nfsi->flags can be manipulated with atomic bitops, and some
      are better manipulated via logical bitmask operations.
      
      This patch splits the flags field into two.  The next patch introduces atomic
      bitops for one of the fields.
      
      Test plan:
       Millions of fsx ops on SMP clients.
      Signed-off-by: default avatarChuck Lever <cel@netapp.com>
      Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      55296809
  7. 16 Aug, 2005 1 commit
  8. 28 Jun, 2005 1 commit
  9. 23 Jun, 2005 1 commit
  10. 22 Jun, 2005 28 commits