On large machines hash tables can be many gigabytes in size and it is inefficient to zero them in a loop without platform specific optimizations. Using memset() provides a standard platform optimized way to zero the memory. Pavel Tatashin (3): sparc64: NG4 memset/memcpy 32 bits overflow mm: Zeroing hash tables in allocator mm: Updated callers to use HASH_ZERO flag arch/sparc/lib/NG4memcpy.S | 71 ++++++++++++++++------------------- arch/sparc/lib/NG4memset.S | 26 ++++++------ fs/dcache.c | 18 ++------- fs/inode.c | 14 +------ fs/namespace.c | 10 +---- include/linux/bootmem.h | 1 + kernel/locking/qspinlock_paravirt.h | 3 +- kernel/pid.c | 7 +-- mm/page_alloc.c | 12 ++++- 9 files changed, 67 insertions(+), 95 deletions(-) -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>
