[PATCH v3 02/13] btrfs: use min() to replace open-code in btrfs_invalidatepage()
From: Qu Wenruo <hidden>
Date: 2021-03-25 07:16:13
Subsystem:
btrfs file system, filesystems (vfs and infrastructure), the rest · Maintainers:
Chris Mason, David Sterba, Alexander Viro, Christian Brauner, Linus Torvalds
In btrfs_invalidatepage() we introduce a temporary variable, new_len, to update ordered->truncated_len. But we can use min() to replace it completely and no need for the variable. Reviewed-by: Anand Jain <redacted> Signed-off-by: Qu Wenruo <redacted> --- fs/btrfs/inode.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 288c7ce63a32..ab42d1d0c1f2 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c@@ -8410,15 +8410,13 @@ static void btrfs_invalidatepage(struct page *page, unsigned int offset, */ if (TestClearPagePrivate2(page)) { struct btrfs_ordered_inode_tree *tree; - u64 new_len; tree = &inode->ordered_tree; spin_lock_irq(&tree->lock); set_bit(BTRFS_ORDERED_TRUNCATED, &ordered->flags); - new_len = start - ordered->file_offset; - if (new_len < ordered->truncated_len) - ordered->truncated_len = new_len; + ordered->truncated_len = min(ordered->truncated_len, + start - ordered->file_offset); spin_unlock_irq(&tree->lock); if (btrfs_dec_test_ordered_pending(inode, &ordered,
--
2.30.1