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Subject[PATCH 6/7] btrfs: Promote to unsigned long long before shifting
Date
On 32-bit systems, this shift will overflow for files larger than 4GB.

Cc: stable@vger.kernel.org
Fixes: 53b381b3abeb ("Btrfs: RAID5 and RAID6")
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
---
fs/btrfs/raid56.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/btrfs/raid56.c b/fs/btrfs/raid56.c
index 255490f42b5d..5ee0a53301bd 100644
--- a/fs/btrfs/raid56.c
+++ b/fs/btrfs/raid56.c
@@ -1089,7 +1089,7 @@ static int rbio_add_io_page(struct btrfs_raid_bio *rbio,
u64 disk_start;

stripe = &rbio->bbio->stripes[stripe_nr];
- disk_start = stripe->physical + (page_index << PAGE_SHIFT);
+ disk_start = stripe->physical + ((loff_t)page_index << PAGE_SHIFT);

/* if the device is missing, just fail this stripe */
if (!stripe->dev->bdev)
--
2.28.0
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