mirror of https://gitee.com/openkylin/linux.git
lustre: Convert ll_get_user_pages() to use get_user_pages_fast()
CC: Peng Tao <tao.peng@emc.com> Acked-by: Andreas Dilger <andreas.dilger@intel.com> CC: hpdd-discuss@lists.01.org Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -202,11 +202,8 @@ static inline int ll_get_user_pages(int rw, unsigned long user_addr,
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OBD_ALLOC_LARGE(*pages, *max_pages * sizeof(**pages));
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if (*pages) {
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down_read(¤t->mm->mmap_sem);
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result = get_user_pages(current, current->mm, user_addr,
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*max_pages, (rw == READ), 0, *pages,
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NULL);
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up_read(¤t->mm->mmap_sem);
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result = get_user_pages_fast(user_addr, *max_pages,
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(rw == READ), *pages);
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if (unlikely(result <= 0))
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OBD_FREE_LARGE(*pages, *max_pages * sizeof(**pages));
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}
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