Commit 0bb2045c authored by Chengguang Xu's avatar Chengguang Xu Committed by Jaegeuk Kim
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f2fs: fix to use per-inode maxbytes in f2fs_fiemap 



F2FS inode may have different max size,
so change to use per-inode maxbytes.

Signed-off-by: default avatarChengguang Xu <cgxu519@mykernel.net>
Reviewed-by: default avatarChao Yu <yuchao0@huawei.com>
Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
parent e1175f02

fs/f2fs/data.c

+10 −0
Original line number Diff line number Diff line
@@ -1837,6 +1837,7 @@ int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, 
	int ret = 0;

	bool compr_cluster = false;

	unsigned int cluster_size = F2FS_I(inode)->i_cluster_size;

	loff_t maxbytes;



	if (fieinfo->fi_flags & FIEMAP_FLAG_CACHE) {

		ret = f2fs_precache_extents(inode);
@@ -1850,6 +1851,15 @@ int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, 


	inode_lock(inode);



	maxbytes = max_file_blocks(inode) << F2FS_BLKSIZE_BITS;

	if (start > maxbytes) {

		ret = -EFBIG;

		goto out;

	}



	if (len > maxbytes || (maxbytes - len) < start)

		len = maxbytes - start;



	if (fieinfo->fi_flags & FIEMAP_FLAG_XATTR) {

		ret = f2fs_xattr_fiemap(inode, fieinfo);

		goto out;