diff options
Diffstat (limited to 'io_uring/advise.c')
| -rw-r--r-- | io_uring/advise.c | 29 |
1 files changed, 17 insertions, 12 deletions
diff --git a/io_uring/advise.c b/io_uring/advise.c index 449c6f14649f..7085804c513c 100644 --- a/io_uring/advise.c +++ b/io_uring/advise.c @@ -39,6 +39,7 @@ int io_madvise_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe) ma->addr = READ_ONCE(sqe->addr); ma->len = READ_ONCE(sqe->len); ma->advice = READ_ONCE(sqe->fadvise_advice); + req->flags |= REQ_F_FORCE_ASYNC; return 0; #else return -EOPNOTSUPP; @@ -51,8 +52,7 @@ int io_madvise(struct io_kiocb *req, unsigned int issue_flags) struct io_madvise *ma = io_kiocb_to_cmd(req, struct io_madvise); int ret; - if (issue_flags & IO_URING_F_NONBLOCK) - return -EAGAIN; + WARN_ON_ONCE(issue_flags & IO_URING_F_NONBLOCK); ret = do_madvise(current->mm, ma->addr, ma->len, ma->advice); io_req_set_res(req, ret, 0); @@ -62,6 +62,18 @@ int io_madvise(struct io_kiocb *req, unsigned int issue_flags) #endif } +static bool io_fadvise_force_async(struct io_fadvise *fa) +{ + switch (fa->advice) { + case POSIX_FADV_NORMAL: + case POSIX_FADV_RANDOM: + case POSIX_FADV_SEQUENTIAL: + return false; + default: + return true; + } +} + int io_fadvise_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe) { struct io_fadvise *fa = io_kiocb_to_cmd(req, struct io_fadvise); @@ -72,6 +84,8 @@ int io_fadvise_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe) fa->offset = READ_ONCE(sqe->off); fa->len = READ_ONCE(sqe->len); fa->advice = READ_ONCE(sqe->fadvise_advice); + if (io_fadvise_force_async(fa)) + req->flags |= REQ_F_FORCE_ASYNC; return 0; } @@ -80,16 +94,7 @@ int io_fadvise(struct io_kiocb *req, unsigned int issue_flags) struct io_fadvise *fa = io_kiocb_to_cmd(req, struct io_fadvise); int ret; - if (issue_flags & IO_URING_F_NONBLOCK) { - switch (fa->advice) { - case POSIX_FADV_NORMAL: - case POSIX_FADV_RANDOM: - case POSIX_FADV_SEQUENTIAL: - break; - default: - return -EAGAIN; - } - } + WARN_ON_ONCE(issue_flags & IO_URING_F_NONBLOCK && io_fadvise_force_async(fa)); ret = vfs_fadvise(req->file, fa->offset, fa->len, fa->advice); if (ret < 0) |