From: David Howells dhowells@redhat.com
[ Upstream commit d383e346f97d6bb0d654bb3d63c44ab106d92d29 ]
Fix afs_launder_page() to not clear PG_writeback on the page it is laundering as the flag isn't set in this case.
Fixes: 4343d00872e1 ("afs: Get rid of the afs_writeback record") Signed-off-by: David Howells dhowells@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- fs/afs/internal.h | 1 + fs/afs/write.c | 10 ++++++---- 2 files changed, 7 insertions(+), 4 deletions(-)
diff --git a/fs/afs/internal.h b/fs/afs/internal.h index 06e617ee4cd1e..c8acb58ac5d8f 100644 --- a/fs/afs/internal.h +++ b/fs/afs/internal.h @@ -811,6 +811,7 @@ struct afs_operation { pgoff_t last; /* last page in mapping to deal with */ unsigned first_offset; /* offset into mapping[first] */ unsigned last_to; /* amount of mapping[last] */ + bool laundering; /* Laundering page, PG_writeback not set */ } store; struct { struct iattr *attr; diff --git a/fs/afs/write.c b/fs/afs/write.c index da12abd6db213..b937ec047ec98 100644 --- a/fs/afs/write.c +++ b/fs/afs/write.c @@ -396,7 +396,8 @@ static void afs_store_data_success(struct afs_operation *op) op->ctime = op->file[0].scb.status.mtime_client; afs_vnode_commit_status(op, &op->file[0]); if (op->error == 0) { - afs_pages_written_back(vnode, op->store.first, op->store.last); + if (!op->store.laundering) + afs_pages_written_back(vnode, op->store.first, op->store.last); afs_stat_v(vnode, n_stores); atomic_long_add((op->store.last * PAGE_SIZE + op->store.last_to) - (op->store.first * PAGE_SIZE + op->store.first_offset), @@ -415,7 +416,7 @@ static const struct afs_operation_ops afs_store_data_operation = { */ static int afs_store_data(struct address_space *mapping, pgoff_t first, pgoff_t last, - unsigned offset, unsigned to) + unsigned offset, unsigned to, bool laundering) { struct afs_vnode *vnode = AFS_FS_I(mapping->host); struct afs_operation *op; @@ -448,6 +449,7 @@ static int afs_store_data(struct address_space *mapping, op->store.last = last; op->store.first_offset = offset; op->store.last_to = to; + op->store.laundering = laundering; op->mtime = vnode->vfs_inode.i_mtime; op->flags |= AFS_OPERATION_UNINTR; op->ops = &afs_store_data_operation; @@ -601,7 +603,7 @@ no_more: if (end > i_size) to = i_size & ~PAGE_MASK;
- ret = afs_store_data(mapping, first, last, offset, to); + ret = afs_store_data(mapping, first, last, offset, to, false); switch (ret) { case 0: ret = count; @@ -921,7 +923,7 @@ int afs_launder_page(struct page *page)
trace_afs_page_dirty(vnode, tracepoint_string("launder"), page->index, priv); - ret = afs_store_data(mapping, page->index, page->index, t, f); + ret = afs_store_data(mapping, page->index, page->index, t, f, true); }
trace_afs_page_dirty(vnode, tracepoint_string("laundered"),