mm: fix some broken comments
Fix some broken comments including typo, grammar error and wrong function name. Signed-off-by: Miaohe Lin <linmiaohe@huawei.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Link: https://lkml.kernel.org/r/20200913095456.54873-1-linmiaohe@huawei.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -1445,7 +1445,7 @@ static inline bool clear_bit_unlock_is_negative_byte(long nr, volatile void *mem
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* unlock_page - unlock a locked page
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* @page: the page
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*
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* Unlocks the page and wakes up sleepers in ___wait_on_page_locked().
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* Unlocks the page and wakes up sleepers in wait_on_page_locked().
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* Also wakes sleepers in wait_on_page_writeback() because the wakeup
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* mechanism between PageLocked pages and PageWriteback pages is shared.
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* But that's OK - sleepers in wait_on_page_writeback() just go back to sleep.
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@ -3004,7 +3004,7 @@ filler:
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goto out;
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/*
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* Page is not up to date and may be locked due one of the following
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* Page is not up to date and may be locked due to one of the following
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* case a: Page is being filled and the page lock is held
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* case b: Read/write error clearing the page uptodate status
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* case c: Truncation in progress (page locked)
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@ -246,7 +246,7 @@ int add_to_swap(struct page *page)
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goto fail;
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/*
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* Normally the page will be dirtied in unmap because its pte should be
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* dirty. A special case is MADV_FREE page. The page'e pte could have
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* dirty. A special case is MADV_FREE page. The page's pte could have
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* dirty bit cleared but the page's SwapBacked bit is still set because
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* clearing the dirty bit and SwapBacked bit has no lock protected. For
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* such page, unmap will not set dirty bit for it, so page reclaim will
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