From: Mike Marshall hubcap@omnibond.com

A late commit to 6.14-rc7 (665575cf) broke orangefs. I made a patch that fixes orangefs in 6.15, but some pagecache/folio code got pulled into 6.15 that causes my 6.15 patch not to apply to 6.14. Here is a tested 6.14 flavored patch that was never upstream that I hope can get applied to 6.14-stable...

--- fs/orangefs/inode.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/fs/orangefs/inode.c b/fs/orangefs/inode.c index aae6d2b8767d..3e8ce0fea4d7 100644 --- a/fs/orangefs/inode.c +++ b/fs/orangefs/inode.c @@ -32,12 +32,13 @@ static int orangefs_writepage_locked(struct page *page, len = i_size_read(inode); if (PagePrivate(page)) { wr = (struct orangefs_write_range *)page_private(page); - WARN_ON(wr->pos >= len); off = wr->pos; - if (off + wr->len > len) + if ((off + wr->len > len) && (off <= len)) wlen = len - off; else wlen = wr->len; + if (wlen == 0) + wlen = wr->len; } else { WARN_ON(1); off = page_offset(page); @@ -46,8 +47,6 @@ static int orangefs_writepage_locked(struct page *page, else wlen = PAGE_SIZE; } - /* Should've been handled in orangefs_invalidate_folio. */ - WARN_ON(off == len || off + wlen > len);

WARN_ON(wlen == 0); bvec_set_page(&bv, page, wlen, off % PAGE_SIZE); @@ -341,6 +340,8 @@ static int orangefs_write_begin(struct file *file, wr->len += len; goto okay; } else { + wr->pos = pos; + wr->len = len; ret = orangefs_launder_folio(folio); if (ret) return ret;