Displaying 8 results from an estimated 8 matches for "cur_mm".
2020 Apr 04
0
[PATCH 5/6] kernel: better document the use_mm/unuse_mm API contract
...tic int io_submit_sqes(struct io_ring_ctx *ctx, unsigned int nr,
err = -EFAULT;
goto fail_req;
}
- use_mm(ctx->sqo_mm);
+ kthread_use_mm(ctx->sqo_mm);
*mm = ctx->sqo_mm;
}
@@ -5911,7 +5911,7 @@ static int io_sq_thread(void *data)
* may sleep.
*/
if (cur_mm) {
- unuse_mm(cur_mm);
+ kthread_unuse_mm(cur_mm);
mmput(cur_mm);
cur_mm = NULL;
}
@@ -5987,7 +5987,7 @@ static int io_sq_thread(void *data)
set_fs(old_fs);
if (cur_mm) {
- unuse_mm(cur_mm);
+ kthread_unuse_mm(cur_mm);
mmput(cur_mm);
}
revert_creds(old_cred);
diff...
2020 Apr 16
0
[PATCH 2/3] kernel: better document the use_mm/unuse_mm API contract
...tic int io_submit_sqes(struct io_ring_ctx *ctx, unsigned int nr,
err = -EFAULT;
goto fail_req;
}
- use_mm(ctx->sqo_mm);
+ kthread_use_mm(ctx->sqo_mm);
*mm = ctx->sqo_mm;
}
@@ -5948,7 +5948,7 @@ static int io_sq_thread(void *data)
* may sleep.
*/
if (cur_mm) {
- unuse_mm(cur_mm);
+ kthread_unuse_mm(cur_mm);
mmput(cur_mm);
cur_mm = NULL;
}
@@ -6025,7 +6025,7 @@ static int io_sq_thread(void *data)
set_fs(old_fs);
if (cur_mm) {
- unuse_mm(cur_mm);
+ kthread_unuse_mm(cur_mm);
mmput(cur_mm);
}
revert_creds(old_cred);
diff...
2020 Apr 04
14
improve use_mm / unuse_mm
Hi all,
this series improves the use_mm / unuse_mm interface by better
documenting the assumptions, and my taking the set_fs manipulations
spread over the callers into the core API.
2020 Apr 04
14
improve use_mm / unuse_mm
Hi all,
this series improves the use_mm / unuse_mm interface by better
documenting the assumptions, and my taking the set_fs manipulations
spread over the callers into the core API.
2020 Apr 04
0
[PATCH 6/6] kernel: set USER_DS in kthread_use_mm
...ork->mm;
/* hang on to this mm */
work->mm = NULL;
diff --git a/fs/io_uring.c b/fs/io_uring.c
index 367406381044..c332a34e8b34 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -5871,15 +5871,12 @@ static int io_sq_thread(void *data)
struct io_ring_ctx *ctx = data;
struct mm_struct *cur_mm = NULL;
const struct cred *old_cred;
- mm_segment_t old_fs;
DEFINE_WAIT(wait);
unsigned long timeout;
int ret = 0;
complete(&ctx->completions[1]);
- old_fs = get_fs();
- set_fs(USER_DS);
old_cred = override_creds(ctx->creds);
timeout = jiffies + ctx->sq_thread_idle;...
2020 Apr 16
0
[PATCH 3/3] kernel: set USER_DS in kthread_use_mm
...ork->mm;
/* hang on to this mm */
work->mm = NULL;
diff --git a/fs/io_uring.c b/fs/io_uring.c
index 8a8148512da7..40f90b98a18a 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -5908,15 +5908,12 @@ static int io_sq_thread(void *data)
struct io_ring_ctx *ctx = data;
struct mm_struct *cur_mm = NULL;
const struct cred *old_cred;
- mm_segment_t old_fs;
DEFINE_WAIT(wait);
unsigned long timeout;
int ret = 0;
complete(&ctx->completions[1]);
- old_fs = get_fs();
- set_fs(USER_DS);
old_cred = override_creds(ctx->creds);
timeout = jiffies + ctx->sq_thread_idle;...
2020 Apr 16
8
improve use_mm / unuse_mm v2
Hi all,
this series improves the use_mm / unuse_mm interface by better
documenting the assumptions, and my taking the set_fs manipulations
spread over the callers into the core API.
Changes since v1:
- drop a few patches
- fix a comment typo
- cover the newly merged use_mm/unuse_mm caller in vfio
2020 Apr 16
8
improve use_mm / unuse_mm v2
Hi all,
this series improves the use_mm / unuse_mm interface by better
documenting the assumptions, and my taking the set_fs manipulations
spread over the callers into the core API.
Changes since v1:
- drop a few patches
- fix a comment typo
- cover the newly merged use_mm/unuse_mm caller in vfio