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authorLinus Torvalds <torvalds@linux-foundation.org>2023-03-10 19:09:18 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2023-03-10 19:09:18 -0800
commitd33d4c9e0888e9ee7666813b3f9ecc244a64d127 (patch)
tree02f8243de2898aae26bf6c10def3ef9250f40a3f /include
parent4831f76247bc939ed1b6d71ddd23337ec8b56b8e (diff)
parent849ad04cf562ac63b0371a825eed473d84de9c6d (diff)
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Merge tag 'pull-highmem' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull put_and_unmap_page() helper from Al Viro: "kmap_local_page() conversions in local filesystems keep running into kunmap_local_page()+put_page() combinations. We can keep inventing names for identical inline helpers, but it's getting rather inconvenient. I've added a trivial helper to linux/highmem.h instead. I would've held that back until the merge window, if not for the mess it causes in tree topology - I've several branches merging from that one, and it's only going to get worse if e.g. ext2 stuff gets picked by Jan" * tag 'pull-highmem' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: new helper: put_and_unmap_page()
Diffstat (limited to 'include')
-rw-r--r--include/linux/highmem.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/highmem.h b/include/linux/highmem.h
index b06254e76d99..8fc10089e19e 100644
--- a/include/linux/highmem.h
+++ b/include/linux/highmem.h
@@ -481,4 +481,10 @@ static inline void folio_zero_range(struct folio *folio,
zero_user_segments(&folio->page, start, start + length, 0, 0);
}
+static inline void put_and_unmap_page(struct page *page, void *addr)
+{
+ kunmap_local(addr);
+ put_page(page);
+}
+
#endif /* _LINUX_HIGHMEM_H */