diff options
| author | Kent Overstreet <kent.overstreet@linux.dev> | 2025-07-22 18:41:14 -0400 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2025-07-25 12:03:10 -0400 |
| commit | 0f3b086842c5be1dc94e68fb79aa76839f622acd (patch) | |
| tree | 22c23f56e1763fc6605c3c30c3c296101fe13d81 | |
| parent | 94fb407a99a6f94a9c97d8cdebeee679266cc690 (diff) | |
bcachefs: Add missing ei_last_dirtied update
ei_last_dirtied tracks the process that last dirtied a file, it's used
for segregating writes from different processes into different
writepoints.
But bch2_page_mkwrite() was missing it, leading to a KMSAN splat.
Reported-by: syzbot+2caec1f3fc52004d4f3c@syzkaller.appspotmail.com
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
| -rw-r--r-- | fs/bcachefs/fs-io-pagecache.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/bcachefs/fs-io-pagecache.c b/fs/bcachefs/fs-io-pagecache.c index 2a6705186c44..469492f6264a 100644 --- a/fs/bcachefs/fs-io-pagecache.c +++ b/fs/bcachefs/fs-io-pagecache.c @@ -635,6 +635,8 @@ vm_fault_t bch2_page_mkwrite(struct vm_fault *vmf) goto out; } + inode->ei_last_dirtied = (unsigned long) current; + bch2_set_folio_dirty(c, inode, folio, &res, offset, len); bch2_folio_reservation_put(c, inode, &res); |