page cache: use xa_lock
Remove the address_space ->tree_lock and use the xa_lock newly added to the radix_tree_root. Rename the address_space ->page_tree to ->i_pages, since we don't really care that it's a tree. [willy@infradead.org: fix nds32, fs/dax.c] Link: http://lkml.kernel.org/r/20180406145415.GB20605@bombadil.infradead.orgLink: http://lkml.kernel.org/r/20180313132639.17387-9-willy@infradead.org Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com> Acked-by: Jeff Layton <jlayton@redhat.com> Cc: Darrick J. Wong <darrick.wong@oracle.com> Cc: Dave Chinner <david@fromorbit.com> Cc: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Cc: Will Deacon <will.deacon@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Linus Torvalds

parent
f6bb2a2c0b
commit
b93b016313
@@ -732,10 +732,10 @@ void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page,
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if (bit_pos == NR_DENTRY_IN_BLOCK &&
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!truncate_hole(dir, page->index, page->index + 1)) {
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spin_lock_irqsave(&mapping->tree_lock, flags);
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radix_tree_tag_clear(&mapping->page_tree, page_index(page),
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xa_lock_irqsave(&mapping->i_pages, flags);
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radix_tree_tag_clear(&mapping->i_pages, page_index(page),
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PAGECACHE_TAG_DIRTY);
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spin_unlock_irqrestore(&mapping->tree_lock, flags);
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xa_unlock_irqrestore(&mapping->i_pages, flags);
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clear_page_dirty_for_io(page);
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ClearPagePrivate(page);
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