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| author |   Linus Torvalds <torvalds@linux-foundation.org> | 2021-09-09 12:13:46 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-09-09 12:13:46 -0700 |
| commit | 7b7699c09f66f180b9a8a5010df352acb8683bfa (patch) | |
| tree | 5f5e4472beba0cf247dc9003aced072e65172791 /fs/io_uring.c | |
| parent | Merge tag 'cxl-for-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl (diff) | |
| parent | io_uring: reexpand under-reexpanded iters (diff) | |
| download | linux-dev-7b7699c09f66f180b9a8a5010df352acb8683bfa.tar.xz linux-dev-7b7699c09f66f180b9a8a5010df352acb8683bfa.zip | |
Merge branch 'work.iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull iov_iter fixes from Al Viro:
"Fixes for io-uring handling of iov_iter reexpands"
* 'work.iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
io_uring: reexpand under-reexpanded iters
iov_iter: track truncated size
Diffstat (limited to 'fs/io_uring.c')
| -rw-r--r-- | fs/io_uring.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/io_uring.c b/fs/io_uring.c index d816c09c88a5..855ea544807f 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -3480,6 +3480,7 @@ static int io_read(struct io_kiocb *req, unsigned int issue_flags) if (req->flags & REQ_F_NOWAIT) goto done; /* some cases will consume bytes even on error returns */ + iov_iter_reexpand(iter, iter->count + iter->truncated); iov_iter_revert(iter, io_size - iov_iter_count(iter)); ret = 0; } else if (ret == -EIOCBQUEUED) { @@ -3619,6 +3620,7 @@ done: } else { copy_iov: /* some cases will consume bytes even on error returns */ + iov_iter_reexpand(iter, iter->count + iter->truncated); iov_iter_revert(iter, io_size - iov_iter_count(iter)); ret = io_setup_async_rw(req, iovec, inline_vecs, iter, false); return ret ?: -EAGAIN; |