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io_uring: unify fsize with def->work_flags

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This one was missed in the earlier conversion, should be included like
any of the other IO identity flags. Make sure we restore to RLIM_INIFITY
when dropping the personality again.

Fixes: 98447d65b4 ("io_uring: move io identity items into separate struct")
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Jens Axboe
2020-10-20 14:28:41 -06:00
parent 900fad45dc
commit 69228338c9
3 changed files with 18 additions and 14 deletions
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23
fs/io_uring.c
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@@ -753,8 +753,6 @@ struct io_op_def {
unsigned pollout : 1;
/* op supports buffer selection */
unsigned buffer_select : 1;
/* needs rlimit(RLIMIT_FSIZE) assigned */
unsigned needs_fsize : 1;
/* must always have async data allocated */
unsigned needs_async_data : 1;
/* size of async data needed, if any */
@@ -778,10 +776,10 @@ static const struct io_op_def io_op_defs[] = {
.hash_reg_file = 1,
.unbound_nonreg_file = 1,
.pollout = 1,
.needs_fsize = 1,
.needs_async_data = 1,
.async_size = sizeof(struct io_async_rw),
.work_flags = IO_WQ_WORK_MM | IO_WQ_WORK_BLKCG,
.work_flags = IO_WQ_WORK_MM | IO_WQ_WORK_BLKCG |
IO_WQ_WORK_FSIZE,
},
[IORING_OP_FSYNC] = {
.needs_file = 1,
@@ -799,9 +797,8 @@ static const struct io_op_def io_op_defs[] = {
.hash_reg_file = 1,
.unbound_nonreg_file = 1,
.pollout = 1,
.needs_fsize = 1,
.async_size = sizeof(struct io_async_rw),
.work_flags = IO_WQ_WORK_BLKCG,
.work_flags = IO_WQ_WORK_BLKCG | IO_WQ_WORK_FSIZE,
},
[IORING_OP_POLL_ADD] = {
.needs_file = 1,
@@ -859,8 +856,7 @@ static const struct io_op_def io_op_defs[] = {
},
[IORING_OP_FALLOCATE] = {
.needs_file = 1,
.needs_fsize = 1,
.work_flags = IO_WQ_WORK_BLKCG,
.work_flags = IO_WQ_WORK_BLKCG | IO_WQ_WORK_FSIZE,
},
[IORING_OP_OPENAT] = {
.work_flags = IO_WQ_WORK_FILES | IO_WQ_WORK_BLKCG |
@@ -890,9 +886,9 @@ static const struct io_op_def io_op_defs[] = {
.needs_file = 1,
.unbound_nonreg_file = 1,
.pollout = 1,
.needs_fsize = 1,
.async_size = sizeof(struct io_async_rw),
.work_flags = IO_WQ_WORK_MM | IO_WQ_WORK_BLKCG,
.work_flags = IO_WQ_WORK_MM | IO_WQ_WORK_BLKCG |
IO_WQ_WORK_FSIZE,
},
[IORING_OP_FADVISE] = {
.needs_file = 1,
@@ -1293,8 +1289,11 @@ static bool io_grab_identity(struct io_kiocb *req)
struct io_identity *id = req->work.identity;
struct io_ring_ctx *ctx = req->ctx;
if (def->needs_fsize && id->fsize != rlimit(RLIMIT_FSIZE))
return false;
if (def->work_flags & IO_WQ_WORK_FSIZE) {
if (id->fsize != rlimit(RLIMIT_FSIZE))
return false;
req->work.flags |= IO_WQ_WORK_FSIZE;
}
if (!(req->work.flags & IO_WQ_WORK_FILES) &&
(def->work_flags & IO_WQ_WORK_FILES) &&