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Code Issues Releases Wiki Activity

io_uring: add missing item types for various requests

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Any read/write should grab current->nsproxy, denoted by IO_WQ_WORK_FILES
as it refers to current->files as well, and connect and recv/recvmsg,
send/sendmsg should grab current->fs which is denoted by IO_WQ_WORK_FS.

No upstream commit exists for this issue.

Reported-by: Bing-Jhong Billy Jheng <billy@starlabs.sg>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jens Axboe 2022-06-22 14:05:49 -06:00 committed by Greg Kroah-Hartman
parent 1a264b3a69
commit df3f3bb505
1 changed files with 14 additions and 9 deletions
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23
fs/io_uring.c
View file

@ -773,7 +773,8 @@ static const struct io_op_def io_op_defs[] = {
.buffer_select = 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_FILES,
},
[IORING_OP_WRITEV] = {
.needs_file = 1,
@ -783,7 +784,7 @@ static const struct io_op_def io_op_defs[] = {
.needs_async_data = 1,
.async_size = sizeof(struct io_async_rw),
.work_flags = IO_WQ_WORK_MM | IO_WQ_WORK_BLKCG |
IO_WQ_WORK_FSIZE,
IO_WQ_WORK_FSIZE | IO_WQ_WORK_FILES,
},
[IORING_OP_FSYNC] = {
.needs_file = 1,
@ -794,7 +795,8 @@ static const struct io_op_def io_op_defs[] = {
.unbound_nonreg_file = 1,
.pollin = 1,
.async_size = sizeof(struct io_async_rw),
.work_flags = IO_WQ_WORK_BLKCG | IO_WQ_WORK_MM,
.work_flags = IO_WQ_WORK_BLKCG | IO_WQ_WORK_MM |
IO_WQ_WORK_FILES,
},
[IORING_OP_WRITE_FIXED] = {
.needs_file = 1,
@ -803,7 +805,7 @@ static const struct io_op_def io_op_defs[] = {
.pollout = 1,
.async_size = sizeof(struct io_async_rw),
.work_flags = IO_WQ_WORK_BLKCG | IO_WQ_WORK_FSIZE |
IO_WQ_WORK_MM,
IO_WQ_WORK_MM | IO_WQ_WORK_FILES,
},
[IORING_OP_POLL_ADD] = {
.needs_file = 1,
@ -857,7 +859,7 @@ static const struct io_op_def io_op_defs[] = {
.pollout = 1,
.needs_async_data = 1,
.async_size = sizeof(struct io_async_connect),
.work_flags = IO_WQ_WORK_MM,
.work_flags = IO_WQ_WORK_MM | IO_WQ_WORK_FS,
},
[IORING_OP_FALLOCATE] = {
.needs_file = 1,
@ -885,7 +887,8 @@ static const struct io_op_def io_op_defs[] = {
.pollin = 1,
.buffer_select = 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_FILES,
},
[IORING_OP_WRITE] = {
.needs_file = 1,
@ -894,7 +897,7 @@ static const struct io_op_def io_op_defs[] = {
.pollout = 1,
.async_size = sizeof(struct io_async_rw),
.work_flags = IO_WQ_WORK_MM | IO_WQ_WORK_BLKCG |
IO_WQ_WORK_FSIZE,
IO_WQ_WORK_FSIZE | IO_WQ_WORK_FILES,
},
[IORING_OP_FADVISE] = {
.needs_file = 1,
@ -907,14 +910,16 @@ static const struct io_op_def io_op_defs[] = {
.needs_file = 1,
.unbound_nonreg_file = 1,
.pollout = 1,
.work_flags = IO_WQ_WORK_MM | IO_WQ_WORK_BLKCG,
.work_flags = IO_WQ_WORK_MM | IO_WQ_WORK_BLKCG |
IO_WQ_WORK_FS,
},
[IORING_OP_RECV] = {
.needs_file = 1,
.unbound_nonreg_file = 1,
.pollin = 1,
.buffer_select = 1,
.work_flags = IO_WQ_WORK_MM | IO_WQ_WORK_BLKCG,
.work_flags = IO_WQ_WORK_MM | IO_WQ_WORK_BLKCG |
IO_WQ_WORK_FS,
},
[IORING_OP_OPENAT2] = {
.work_flags = IO_WQ_WORK_FILES | IO_WQ_WORK_FS |