From 49694d14ff68fa4b5f86019dbcfb44a8bd213e58 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Thu, 15 Jul 2021 09:58:04 -0700 Subject: iomap: remove the length variable in iomap_seek_hole The length variable is rather pointless given that it can be trivially deduced from offset and size. Also the initial calculation can lead to KASAN warnings. Signed-off-by: Christoph Hellwig Reported-by: Leizhen (ThunderTown) Reviewed-by: Darrick J. Wong Signed-off-by: Darrick J. Wong Reviewed-by: Matthew Wilcox (Oracle) --- fs/iomap/seek.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) (limited to 'fs') diff --git a/fs/iomap/seek.c b/fs/iomap/seek.c index 50b8f1418f26..ce6fb810854f 100644 --- a/fs/iomap/seek.c +++ b/fs/iomap/seek.c @@ -35,23 +35,20 @@ loff_t iomap_seek_hole(struct inode *inode, loff_t offset, const struct iomap_ops *ops) { loff_t size = i_size_read(inode); - loff_t length = size - offset; loff_t ret; /* Nothing to be found before or beyond the end of the file. */ if (offset < 0 || offset >= size) return -ENXIO; - while (length > 0) { - ret = iomap_apply(inode, offset, length, IOMAP_REPORT, ops, - &offset, iomap_seek_hole_actor); + while (offset < size) { + ret = iomap_apply(inode, offset, size - offset, IOMAP_REPORT, + ops, &offset, iomap_seek_hole_actor); if (ret < 0) return ret; if (ret == 0) break; - offset += ret; - length -= ret; } return offset; -- cgit v1.2.3-58-ga151