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block: Use PAGE_SECTORS_SHIFT

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The bare use of '9' confuses some people.  We also don't need this cast,
since the compiler does exactly that cast for us.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
This commit is contained in:
Matthew Wilcox (Oracle) 2022-05-17 23:40:45 -04:00
parent 98d8ba69ff
commit 069fc464f1
1 changed files with 1 additions and 2 deletions
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3
block/partitions/core.c
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@ -712,8 +712,7 @@ void *read_part_sector(struct parsed_partitions *state, sector_t n, Sector *p)
goto out;
}
page = read_mapping_page(mapping,
(pgoff_t)(n >> (PAGE_SHIFT - 9)), NULL);
page = read_mapping_page(mapping, n >> PAGE_SECTORS_SHIFT, NULL);
if (IS_ERR(page))
goto out;