Messages in this thread Patch in this message | | | From | Baoquan He <> | Subject | [PATCH] not adding modules range to kcore if it's equal to vmcore range | Date | Sun, 13 Jul 2014 08:42:24 +0800 |
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On some ARCHs modules range is eauql to vmalloc range. E.g on i686
This will cause 2 duplicate program segments in /proc/kcore, makes user confused. In this patch a judgment added to check if modules range is equal to vmalloc range. If yes, just skip adding the modules range.
Signed-off-by: Baoquan He <bhe@redhat.com> --- fs/proc/kcore.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/fs/proc/kcore.c b/fs/proc/kcore.c index 39e6ef3..bf5127c 100644 --- a/fs/proc/kcore.c +++ b/fs/proc/kcore.c @@ -610,8 +610,10 @@ static void __init proc_kcore_text_init(void) struct kcore_list kcore_modules; static void __init add_modules_range(void) { - kclist_add(&kcore_modules, (void *)MODULES_VADDR, - MODULES_END - MODULES_VADDR, KCORE_VMALLOC); + if (MODULES_VADDR != VMALLOC_START) { + kclist_add(&kcore_modules, (void *)MODULES_VADDR, + MODULES_END - MODULES_VADDR, KCORE_VMALLOC); + } } #else static void __init add_modules_range(void) -- 1.9.3
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