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io_uring/rw: split io_read() into a helper

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Add __io_read() which does the grunt of the work, leaving the completion
side to the new io_read(). No functional changes in this patch.

Reviewed-by: Gabriel Krisman Bertazi <krisman@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Jens Axboe 2023-09-11 13:31:56 -06:00
parent ce9ecca023
commit a08d195b58
1 changed files with 13 additions and 2 deletions
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13
io_uring/rw.c
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@ -708,7 +708,7 @@ static int io_rw_init_file(struct io_kiocb *req, fmode_t mode)
return 0; return 0;
} }
int io_read(struct io_kiocb *req, unsigned int issue_flags) static int __io_read(struct io_kiocb *req, unsigned int issue_flags)
{ {
struct io_rw *rw = io_kiocb_to_cmd(req, struct io_rw); struct io_rw *rw = io_kiocb_to_cmd(req, struct io_rw);
struct io_rw_state __s, *s = &__s; struct io_rw_state __s, *s = &__s;
@ -853,7 +853,18 @@ done:
/* it's faster to check here then delegate to kfree */ /* it's faster to check here then delegate to kfree */
if (iovec) if (iovec)
kfree(iovec); kfree(iovec);
return ret;
}
int io_read(struct io_kiocb *req, unsigned int issue_flags)
{
int ret;
ret = __io_read(req, issue_flags);
if (ret >= 0)
return kiocb_done(req, ret, issue_flags); return kiocb_done(req, ret, issue_flags);
return ret;
} }
int io_write(struct io_kiocb *req, unsigned int issue_flags) int io_write(struct io_kiocb *req, unsigned int issue_flags)