Eric Lee / smarc-fsl-linux-kernel

02 Mar, 2017

1 commit

13 Feb, 2015

1 commit

  • 7f1ce3c86   lib/plist.c: remove redundant include ... Browse Code »

    Removing the include of linux/spinlock.h produces byte-identical output
    for {allno,def}config, and identical objdump -d output for allyesconfig.
    In the former two cases, more than a 100 lines are eliminated from the
    generated dependency file.

    Signed-off-by: Rasmus Villemoes
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Rasmus Villemoes
     

05 Jun, 2014

2 commits

  • 181206279   lib/plist.c: replace pr_debug with printk in plist_test() ... Browse Code »

    Replace pr_debug() in lib/plist.c test function plist_test() with
    printk(KERN_DEBUG ...).

    Without DEBUG defined, pr_debug() is complied out, but the entire
    plist_test() function is already inside CONFIG_DEBUG_PI_LIST, so printk
    should just be used directly.

    Signed-off-by: Dan Streetman
    Reviewed-by: Steven Rostedt
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Dan Streetman
     
  • a75f232ce   lib/plist: add plist_requeue ... Browse Code »

    Add plist_requeue(), which moves the specified plist_node after all other
    same-priority plist_nodes in the list. This is essentially an optimized
    plist_del() followed by plist_add().

    This is needed by swap, which (with the next patch in this set) uses a
    plist of available swap devices. When a swap device (either a swap
    partition or swap file) are added to the system with swapon(), the device
    is added to a plist, ordered by the swap device's priority. When swap
    needs to allocate a page from one of the swap devices, it takes the page
    from the first swap device on the plist, which is the highest priority
    swap device. The swap device is left in the plist until all its pages are
    used, and then removed from the plist when it becomes full.

    However, as described in man 2 swapon, swap must allocate pages from swap
    devices with the same priority in round-robin order; to do this, on each
    swap page allocation, swap uses a page from the first swap device in the
    plist, and then calls plist_requeue() to move that swap device entry to
    after any other same-priority swap devices. The next swap page allocation
    will again use a page from the first swap device in the plist and requeue
    it, and so on, resulting in round-robin usage of equal-priority swap
    devices.

    Also add plist_test_requeue() test function, for use by plist_test() to
    test plist_requeue() function.

    Signed-off-by: Dan Streetman
    Cc: Steven Rostedt
    Cc: Peter Zijlstra
    Acked-by: Mel Gorman
    Cc: Paul Gortmaker
    Cc: Thomas Gleixner
    Cc: Shaohua Li
    Cc: Hugh Dickins
    Cc: Dan Streetman
    Cc: Michal Hocko
    Cc: Christian Ehrhardt
    Cc: Weijie Yang
    Cc: Rik van Riel
    Cc: Johannes Weiner
    Cc: Bob Liu
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Dan Streetman
     

06 Oct, 2012

1 commit

01 Mar, 2012

1 commit

08 Jul, 2011

1 commit

  • 732375c6a   plist: Remove the need to supply locks to plist heads ... Browse Code »

    This was legacy code brought over from the RT tree and
    is no longer necessary.

    Signed-off-by: Dima Zavin
    Acked-by: Thomas Gleixner
    Cc: Daniel Walker
    Cc: Steven Rostedt
    Cc: Peter Zijlstra
    Cc: Andi Kleen
    Cc: Lai Jiangshan
    Link: http://lkml.kernel.org/r/1310084879-10351-2-git-send-email-dima@android.com
    Signed-off-by: Ingo Molnar

    Dima Zavin
     

12 Mar, 2011

2 commits

  • 6d55da53d   plist: Add priority list test ... Browse Code »

    Add test code for checking plist when the kernel is booting.

    Signed-off-by: Lai Jiangshan
    LKML-Reference:
    Signed-off-by: Steven Rostedt

    Lai Jiangshan
     
  • bf6a9b833   plist: Shrink struct plist_head ... Browse Code »

    struct plist_head is used in struct task_struct as well as struct
    rtmutex. If we can make it smaller, it will also make these structures
    smaller as well.

    The field prio_list in struct plist_head is seldom used and we can get
    its information from the plist_nodes. Removing this field will decrease
    the size of plist_head by half.

    Signed-off-by: Lai Jiangshan
    LKML-Reference:
    Signed-off-by: Steven Rostedt

    Lai Jiangshan
     

15 Dec, 2009

1 commit

27 Jul, 2008

1 commit

  • 5cd2b459d   Use WARN() in lib/ ... Browse Code »

    Use WARN() instead of a printk+WARN_ON() pair; this way the message becomes
    part of the warning section for better reporting/collection. In addition, one
    of the if() clauses collapes into the WARN() entirely now.

    Signed-off-by: Arjan van de Ven
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Arjan van de Ven
     

28 Jun, 2006

1 commit