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io_uring: move io identity items into separate struct

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io-wq contains a pointer to the identity, which we just hold in io_kiocb
for now. This is in preparation for putting this outside io_kiocb. The
only exception is struct files_struct, which we'll need different rules
for to avoid a circular dependency.

No functional changes in this patch.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Jens Axboe
2020-10-14 10:48:51 -06:00
parent dfead8a8e2
commit 98447d65b4
4 changed files with 64 additions and 57 deletions
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13
include/linux/io_uring.h
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@@ -4,7 +4,18 @@
#include <linux/sched.h>
#include <linux/xarray.h>
#include <linux/percpu-refcount.h>
struct io_identity {
struct files_struct *files;
struct mm_struct *mm;
#ifdef CONFIG_BLK_CGROUP
struct cgroup_subsys_state *blkcg_css;
#endif
const struct cred *creds;
struct nsproxy *nsproxy;
struct fs_struct *fs;
unsigned long fsize;
};
struct io_uring_task {
/* submission side */