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[PATCH] 32bit integer overflow in invalidate_inode_pages2()

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Fix a 32 bit integer overflow in invalidate_inode_pages2_range.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Oleg Drokin
2005-11-23 13:37:47 -08:00
committed by Linus Torvalds
parent 02b7068221
commit 479ef592f3
1 changed files with 3 additions and 3 deletions
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6
mm/truncate.c
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@@ -282,8 +282,8 @@ int invalidate_inode_pages2_range(struct address_space *mapping,
* Zap the rest of the file in one hit. * Zap the rest of the file in one hit.
*/ */
unmap_mapping_range(mapping, unmap_mapping_range(mapping,
page_index << PAGE_CACHE_SHIFT, (loff_t)page_index<<PAGE_CACHE_SHIFT,
(end - page_index + 1) (loff_t)(end - page_index + 1)
<< PAGE_CACHE_SHIFT, << PAGE_CACHE_SHIFT,
0); 0);
did_range_unmap = 1; did_range_unmap = 1;
@@ -292,7 +292,7 @@ int invalidate_inode_pages2_range(struct address_space *mapping,
* Just zap this page * Just zap this page
*/ */
unmap_mapping_range(mapping, unmap_mapping_range(mapping,
page_index << PAGE_CACHE_SHIFT, (loff_t)page_index<<PAGE_CACHE_SHIFT,
PAGE_CACHE_SIZE, 0); PAGE_CACHE_SIZE, 0);
} }
} }