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io_uring: remove io_identity

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We are no longer grabbing state, so no need to maintain an IO identity
that we COW if there are changes.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Jens Axboe
2021-02-15 13:40:22 -07:00
parent 44526bedc2
commit 4379bf8bd7
4 changed files with 52 additions and 99 deletions
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19
include/linux/io_uring.h
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@@ -5,23 +5,6 @@
#include <linux/sched.h>
#include <linux/xarray.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;
#ifdef CONFIG_AUDIT
kuid_t loginuid;
unsigned int sessionid;
#endif
refcount_t count;
};
struct io_wq_work_node {
struct io_wq_work_node *next;
};
@@ -38,8 +21,6 @@ struct io_uring_task {
struct file *last;
void *io_wq;
struct percpu_counter inflight;
struct io_identity __identity;
struct io_identity *identity;
atomic_t in_idle;
bool sqpoll;