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exfat: fix incorrect loading of i_blocks for large files

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When calculating i_blocks, there was a mistake that was masked with a 32-bit
variable. So i_blocks for files larger than 4 GiB had incorrect values.
Mask with a 64-bit variable instead of 32-bit one.

Fixes: 5f2aa075070c ("exfat: add inode operations")
Cc: stable@vger.kernel.org # v5.7+
Reported-by: Ganapathi Kamath <hgkamath@hotmail.com>
Signed-off-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
This commit is contained in:
Sungjong Seo 2021-10-19 13:15:58 +09:00 • committed by Namjae Jeon
commit 0da4dbe15d
1 changed files with 1 additions and 1 deletions
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2
inode.c
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@ -635,7 +635,7 @@ static int exfat_fill_inode(struct inode *inode, struct exfat_dir_entry *info)
exfat_save_attr(inode, info->attr);
inode->i_blocks = ((i_size_read(inode) + (sbi->cluster_size - 1)) &
~(sbi->cluster_size - 1)) >> inode->i_blkbits;
~((loff_t)sbi->cluster_size - 1)) >> inode->i_blkbits;
inode->i_mtime = info->mtime;
inode->i_ctime = info->mtime;
ei->i_crtime = info->crtime;