Messages in this thread | | | From | Heinrich Schuchardt <> | Subject | [PATCH 0/4 v4] max_threadx handling | Date | Mon, 23 Feb 2015 21:14:33 +0100 |
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In fork_init a division by zero may occur.
In the first patch the calculation of max_threads is moved from fork_init to a new separate function.
The incorrect calculation of max threads is addressed in the second patch.
Furthermore max_threads is checked against FUTEX_TID_MASK.
The third patch addresses max_threads being set by writing to /proc/sys/kernel/threads-max. The same limits are applied as in fork_init.
The fourth patch uses a callback function to update max_threads when a memory hotplug event occurs.
New in version 4: Separate of refactoring and correction into separate patches (as requested by Ingo Molnar) Remove redundant argument of fork_init
New in version 3: Determination of max_threads moved to separate function. Handling of /proc/sys/kernel/threads-max Handling of memory hotplugging.
Heinrich Schuchardt (4): kernel/fork.c: new function for max_threads kernel/fork.c: avoid division by zero kernel/sysctl.c: threads-max observe limits kernel/fork.c: memory hotplug updates max_threads
include/linux/sysctl.h | 3 ++ init/main.c | 4 +- kernel/fork.c | 112 +++++++++++++++++++++++++++++++++++++++++-------- kernel/sysctl.c | 6 +-- 4 files changed, 102 insertions(+), 23 deletions(-)
-- 2.1.4
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