1. 21 Jun, 2010 1 commit
  2. 17 Jun, 2010 1 commit
  3. 11 Jun, 2010 4 commits
  4. 08 Jun, 2010 2 commits
  5. 06 Jun, 2010 2 commits
  6. 05 Jun, 2010 15 commits
    • Linus Torvalds's avatar
      Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 · 78b36558
      Linus Torvalds authored
      * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
        ext4: Fix remaining racy updates of EXT4_I(inode)->i_flags
        ext4: Make sure the MOVE_EXT ioctl can't overwrite append-only files
      78b36558
    • Dmitry Monakhov's avatar
      ext4: Fix remaining racy updates of EXT4_I(inode)->i_flags · 84a8dce2
      Dmitry Monakhov authored
      
      
      A few functions were still modifying i_flags in a racy manner.
      Signed-off-by: default avatarDmitry Monakhov <dmonakhov@openvz.org>
      Signed-off-by: default avatar"Theodore Ts'o" <tytso@mit.edu>
      84a8dce2
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs · 6c5de280
      Linus Torvalds authored
      * 'for-linus' of git://oss.sgi.com/xfs/xfs:
        xfs: improve xfs_isilocked
        xfs: skip writeback from reclaim context
        xfs: remove done roadmap item from xfs-delayed-logging-design.txt
        xfs: fix race in inode cluster freeing failing to stale inodes
        xfs: fix access to upper inodes without inode64
        xfs: fix might_sleep() warning when initialising per-ag tree
        fs/xfs/quota: Add missing mutex_unlock
        xfs: remove duplicated #include
        xfs: convert more trace events to DEFINE_EVENT
        xfs: xfs_trace.c: remove duplicated #include
        xfs: Check new inode size is OK before preallocating
        xfs: clean up xlog_align
        xfs: cleanup log reservation calculactions
        xfs: be more explicit if RT mount fails due to config
        xfs: replace E2BIG with EFBIG where appropriate
      6c5de280
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 · ed7dc1df
      Linus Torvalds authored
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (30 commits)
        X25: remove duplicated #include
        tcp: use correct net ns in cookie_v4_check()
        rps: tcp: fix rps_sock_flow_table table updates
        ppp_generic: fix multilink fragment sizes
        syncookies: remove Kconfig text line about disabled-by-default
        ixgbe: only check pfc bits in hang logic if pfc is enabled
        net: check for refcount if pop a stacked dst_entry
        ixgbe: return IXGBE_ERR_RAR_INDEX when out of range
        act_pedit: access skb->data safely
        sfc: Store port number in net_device::dev_id
        epic100: Test __BIG_ENDIAN instead of (non-existent) CONFIG_BIG_ENDIAN
        tehuti: return -EFAULT on copy_to_user errors
        isdn/kcapi: return -EFAULT on copy_from_user errors
        e1000e: change logical negate to bitwise
        sfc: Get port number from CS_PORT_NUM, not PCI function number
        cls_u32: use skb_header_pointer() to dereference data safely
        TCP: tcp_hybla: Fix integer overflow in slow start increment
        act_nat: fix the wrong checksum when addr isn't in old_addr/mask
        net/fec: fix pm to survive to suspend/resume
        korina: count RX DMA OVR as rx_fifo_error
        ...
      ed7dc1df
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2 · 7926e0bf
      Linus Torvalds authored
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2:
        nilfs2: remove obsolete declarations of cache constructor and destructor
        nilfs2: fix style issue in nilfs_destroy_cachep
      7926e0bf
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 · 7f0d384c
      Linus Torvalds authored
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6:
        Minix: Clean up left over label
        fix truncate inode time modification breakage
        fix setattr error handling in sysfs, configfs
        fcntl: return -EFAULT if copy_to_user fails
        wrong type for 'magic' argument in simple_fill_super()
        fix the deadlock in qib_fs
        mqueue doesn't need make_bad_inode()
      7f0d384c
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus · 90ec7819
      Linus Torvalds authored
      * git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:
        module: fix bne2 "gave up waiting for init of module libcrc32c"
        module: verify_export_symbols under the lock
        module: move find_module check to end
        module: make locking more fine-grained.
        module: Make module sysfs functions private.
        module: move sysfs exposure to end of load_module
        module: fix kdb's illicit use of struct module_use.
        module: Make the 'usage' lists be two-way
      90ec7819
    • Rusty Russell's avatar
      module: fix bne2 "gave up waiting for init of module libcrc32c" · 9bea7f23
      Rusty Russell authored
      
      
      Problem: it's hard to avoid an init routine stumbling over a
      request_module these days.  And it's not clear it's always a bad idea:
      for example, a module like kvm with dynamic dependencies on kvm-intel
      or kvm-amd would be neater if it could simply request_module the right
      one.
      
      In this particular case, it's libcrc32c:
      
      	libcrc32c_mod_init
      	 crypto_alloc_shash
      	  crypto_alloc_tfm
      	   crypto_find_alg
      	    crypto_alg_mod_lookup
      	     crypto_larval_lookup
      	      request_module
      
      If another module is waiting inside resolve_symbol() for libcrc32c to
      finish initializing (ie. bne2 depends on libcrc32c) then it does so
      holding the module lock, and our request_module() can't make progress
      until that is released.
      
      Waiting inside resolve_symbol() without the lock isn't all that hard:
      we just need to pass the -EBUSY up the call chain so we can sleep
      where we don't hold the lock.  Error reporting is a bit trickier: we
      need to copy the name of the unfinished module before releasing the
      lock.
      
      Other notes:
      1) This also fixes a theoretical issue where a weak dependency would allow
         symbol version mismatches to be ignored.
      2) We rename use_module to ref_module to make life easier for the only
         external user (the out-of-tree ksplice patches).
      Signed-off-by: default avatarRusty Russell <rusty@rustcorp.com.au>
      Cc: Linus Torvalds <torvalds@linux-foundation.org>
      Cc: Tim Abbot <tabbott@ksplice.com>
      Tested-by: default avatarBrandon Philips <bphilips@suse.de>
      9bea7f23
    • Rusty Russell's avatar
      module: verify_export_symbols under the lock · be593f4c
      Rusty Russell authored
      
      
      It disabled preempt so it was "safe", but nothing stops another module
      slipping in before this module is added to the global list now we don't
      hold the lock the whole time.
      
      So we check this just after we check for duplicate modules, and just
      before we put the module in the global list.
      
      (find_symbol finds symbols in coming and going modules, too).
      Signed-off-by: default avatarRusty Russell <rusty@rustcorp.com.au>
      be593f4c
    • Linus Torvalds's avatar
      module: move find_module check to end · 3bafeb62
      Linus Torvalds authored
      
      
      I think Rusty may have made the lock a bit _too_ finegrained there, and
      didn't add it to some places that needed it. It looks, for example, like
      PATCH 1/2 actually drops the lock in places where it's needed
      ("find_module()" is documented to need it, but now load_module() didn't
      hold it at all when it did the find_module()).
      
      Rather than adding a new "module_loading" list, I think we should be able
      to just use the existing "modules" list, and just fix up the locking a
      bit.
      
      In fact, maybe we could just move the "look up existing module" a bit
      later - optimistically assuming that the module doesn't exist, and then
      just undoing the work if it turns out that we were wrong, just before
      adding ourselves to the list.
      Signed-off-by: default avatarRusty Russell <rusty@rustcorp.com.au>
      3bafeb62
    • Rusty Russell's avatar
      module: make locking more fine-grained. · 75676500
      Rusty Russell authored
      
      
      Kay Sievers <kay.sievers@vrfy.org> reports that we still have some
      contention over module loading which is slowing boot.
      
      Linus also disliked a previous "drop lock and regrab" patch to fix the
      bne2 "gave up waiting for init of module libcrc32c" message.
      
      This is more ambitious: we only grab the lock where we need it.
      Signed-off-by: default avatarRusty Russell <rusty@rustcorp.com.au>
      Cc: Brandon Philips <brandon@ifup.org>
      Cc: Kay Sievers <kay.sievers@vrfy.org>
      Cc: Linus Torvalds <torvalds@linux-foundation.org>
      75676500
    • Rusty Russell's avatar
      module: Make module sysfs functions private. · 6407ebb2
      Rusty Russell authored
      These were placed in the header in ef665c1a
      
       to get the various
      SYSFS/MODULE config combintations to compile.
      
      That may have been necessary then, but it's not now.  These functions
      are all local to module.c.
      Signed-off-by: default avatarRusty Russell <rusty@rustcorp.com.au>
      Cc: Randy Dunlap <randy.dunlap@oracle.com>
      6407ebb2
    • Rusty Russell's avatar
      module: move sysfs exposure to end of load_module · 80a3d1bb
      Rusty Russell authored
      
      
      This means a little extra work, but is more logical: we don't put
      anything in sysfs until we're about to put the module into the
      global list an parse its parameters.
      
      This also gives us a logical place to put duplicate module detection
      in the next patch.
      Signed-off-by: default avatarRusty Russell <rusty@rustcorp.com.au>
      80a3d1bb
    • Rusty Russell's avatar
      module: fix kdb's illicit use of struct module_use. · c8e21ced
      Rusty Russell authored
      
      
      Linus changed the structure, and luckily this didn't compile any more.
      Reported-by: default avatarStephen Rothwell <sfr@canb.auug.org.au>
      Signed-off-by: default avatarRusty Russell <rusty@rustcorp.com.au>
      Cc: Jason Wessel <jason.wessel@windriver.com>
      Cc: Martin Hicks <mort@sgi.com>
      c8e21ced
    • Linus Torvalds's avatar
      module: Make the 'usage' lists be two-way · 2c02dfe7
      Linus Torvalds authored
      
      
      When adding a module that depends on another one, we used to create a
      one-way list of "modules_which_use_me", so that module unloading could
      see who needs a module.
      
      It's actually quite simple to make that list go both ways: so that we
      not only can see "who uses me", but also see a list of modules that are
      "used by me".
      
      In fact, we always wanted that list in "module_unload_free()": when we
      unload a module, we want to also release all the other modules that are
      used by that module.  But because we didn't have that list, we used to
      first iterate over all modules, and then iterate over each "used by me"
      list of that module.
      
      By making the list two-way, we simplify module_unload_free(), and it
      allows for some trivial fixes later too.
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (cleaned & rebased)
      2c02dfe7
  7. 04 Jun, 2010 15 commits