Messages in this thread Patch in this message | | | Date | Wed, 8 Sep 2004 18:26:39 -0700 | From | William Lee Irwin III <> | Subject | [3/2] round up text memory to the nearest page in fs/proc/task_mmu.c |
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On Wed, Sep 08, 2004 at 06:21:37PM -0700, William Lee Irwin III wrote: > Make __task_mem() and __task_mem_cheap() use the appropriate methods > for CONFIG_MMU=y and add some attempt at correct code for CONFIG_MMU=n. > The new methods for /proc/ accounting involve using counters kept in > the mm instead of iteration over vmas. For the CONFIG_MMU=y case this > does not involve acquiring mm->mmap_sem for any per-mm statistics. The > CONFIG_MMU=n case still needs iteration over tblocks to calculate them.
Round up text memory to the nearest page to resolve potential alignment anomalies in reported statistics. Compiletested on ia64.
-- wli
Index: mm4-2.6.9-rc1/fs/proc/task_mmu.c =================================================================== --- mm4-2.6.9-rc1.orig/fs/proc/task_mmu.c 2004-09-08 06:10:35.000000000 -0700 +++ mm4-2.6.9-rc1/fs/proc/task_mmu.c 2004-09-08 18:27:39.401017905 -0700 @@ -9,7 +9,7 @@ unsigned long data, text, lib; data = mm->total_vm - mm->shared_vm - mm->stack_vm; - text = (mm->end_code - mm->start_code) >> 10; + text = PAGE_ALIGN(mm->end_code - mm->start_code) >> 10; lib = (mm->exec_vm << (PAGE_SHIFT-10)) - text; buffer += sprintf(buffer, "VmSize:\t%8lu kB\n" - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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