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f2fs: fix to avoid overflow while left shift operation

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Should cast type of folio->index from pgoff_t to loff_t to avoid overflow
while left shift operation.

Fixes: 3265d3db1f ("f2fs: support partial truncation on compressed inode")
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu 2025-08-05 14:29:10 +08:00 committed by Jaegeuk Kim
parent 1bd119da0b
commit 0fe1c6bec5
1 changed files with 1 additions and 1 deletions
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fs/f2fs/compress.c
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@ -1245,7 +1245,7 @@ int f2fs_truncate_partial_cluster(struct inode *inode, u64 from, bool lock)
for (i = cluster_size - 1; i >= 0; i--) {
struct folio *folio = page_folio(rpages[i]);
loff_t start = folio->index << PAGE_SHIFT;
loff_t start = (loff_t)folio->index << PAGE_SHIFT;
if (from <= start) {
folio_zero_segment(folio, 0, folio_size(folio));