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-rw-r--r--fs/gfs2/inode.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/fs/gfs2/inode.h b/fs/gfs2/inode.h
index 300ada3f21de..15ff4df20aab 100644
--- a/fs/gfs2/inode.h
+++ b/fs/gfs2/inode.h
@@ -80,6 +80,19 @@ static inline void gfs2_inum_out(const struct gfs2_inode *ip,
dent->de_inum.no_addr = cpu_to_be64(ip->i_no_addr);
}
+static inline int gfs2_check_internal_file_size(struct inode *inode,
+ u64 minsize, u64 maxsize)
+{
+ u64 size = i_size_read(inode);
+ if (size < minsize || size > maxsize)
+ goto err;
+ if (size & ((1 << inode->i_blkbits) - 1))
+ goto err;
+ return 0;
+err:
+ gfs2_consist_inode(GFS2_I(inode));
+ return -EIO;
+}
extern void gfs2_set_iop(struct inode *inode);
extern struct inode *gfs2_inode_lookup(struct super_block *sb, unsigned type,