From 8c56e03d2e08d83776c89e4b6563ca8cfdf7da54 Mon Sep 17 00:00:00 2001 From: Miklos Szeredi Date: Fri, 22 Oct 2021 17:03:02 +0200 Subject: fuse: don't bump attr_version in cached write The attribute version in fuse_inode should be updated whenever the attributes might have changed on the server. In case of cached writes this is not the case, so updating the attr_version is unnecessary and could possibly affect performance. Open code the remaining part of fuse_write_update_size(). Signed-off-by: Miklos Szeredi --- fs/fuse/file.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) (limited to 'fs') diff --git a/fs/fuse/file.c b/fs/fuse/file.c index 06967d8e2742..c09ab835821a 100644 --- a/fs/fuse/file.c +++ b/fs/fuse/file.c @@ -2309,15 +2309,18 @@ static int fuse_write_end(struct file *file, struct address_space *mapping, if (!copied) goto unlock; + pos += copied; if (!PageUptodate(page)) { /* Zero any unwritten bytes at the end of the page */ - size_t endoff = (pos + copied) & ~PAGE_MASK; + size_t endoff = pos & ~PAGE_MASK; if (endoff) zero_user_segment(page, endoff, PAGE_SIZE); SetPageUptodate(page); } - fuse_write_update_size(inode, pos + copied); + if (pos > inode->i_size) + i_size_write(inode, pos); + set_page_dirty(page); unlock: -- cgit v1.2.3-59-g8ed1b