Messages in this thread Patch in this message | | | Date | Mon, 6 Aug 2007 01:44:33 -0500 | Subject | [PATCH 2/3] Fix /proc/pid/pagemap header copy to userspace | From | (Dave Boutcher) |
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Earlier code relied on a broken length calculation copy /proc/pid/pagemap header data to userspace. This fix correctly calls the add_to_pagemap routine after the header data is set to copy results to userspace in a sane fashion.
Signed-off-by: Dave Boutcher <boutcher@cs.umn.edu> --- fs/proc/task_mmu.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c index b2baeab..1f78cb4 100644 --- a/fs/proc/task_mmu.c +++ b/fs/proc/task_mmu.c @@ -657,11 +657,11 @@ static ssize_t pagemap_read(struct file *file, char __user *buf, pm.out = buf; if (svpfn == -1) { - add_to_pagemap(pm.next, 0, &pm); ((char *)page)[0] = (ntohl(1) != 1); ((char *)page)[1] = PAGE_SHIFT; ((char *)page)[2] = sizeof(unsigned long); ((char *)page)[3] = sizeof(unsigned long); + add_to_pagemap(pm.next, page[0], &pm); } down_read(&mm->mmap_sem); -- 1.4.4.2 - 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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