From: Bijan Mottahedeh <[email protected]>
To: [email protected], [email protected], [email protected]
Subject: [PATCH v2 07/13] io_uring: add rsrc_ref locking routines
Date: Mon, 7 Dec 2020 14:15:46 -0800 [thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
Encapsulate resource reference locking into separate routines.
Signed-off-by: Bijan Mottahedeh <[email protected]>
---
fs/io_uring.c | 26 ++++++++++++++++++--------
1 file changed, 18 insertions(+), 8 deletions(-)
diff --git a/fs/io_uring.c b/fs/io_uring.c
index 126237e..25b575e 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -7260,6 +7260,16 @@ static void io_rsrc_ref_kill(struct percpu_ref *ref)
complete(&data->done);
}
+static inline void io_rsrc_ref_lock(struct io_ring_ctx *ctx)
+{
+ spin_lock_bh(&ctx->rsrc_ref_lock);
+}
+
+static inline void io_rsrc_ref_unlock(struct io_ring_ctx *ctx)
+{
+ spin_unlock_bh(&ctx->rsrc_ref_lock);
+}
+
static int io_sqe_files_unregister(struct io_ring_ctx *ctx)
{
struct fixed_rsrc_data *data = ctx->file_data;
@@ -7269,9 +7279,9 @@ static int io_sqe_files_unregister(struct io_ring_ctx *ctx)
if (!data)
return -ENXIO;
- spin_lock_bh(&ctx->rsrc_ref_lock);
+ io_rsrc_ref_lock(ctx);
ref_node = data->node;
- spin_unlock_bh(&ctx->rsrc_ref_lock);
+ io_rsrc_ref_unlock(ctx);
if (ref_node)
percpu_ref_kill(&ref_node->refs);
@@ -7649,7 +7659,7 @@ static void io_rsrc_data_ref_zero(struct percpu_ref *ref)
data = ref_node->rsrc_data;
ctx = data->ctx;
- spin_lock_bh(&ctx->rsrc_ref_lock);
+ io_rsrc_ref_lock(ctx);
ref_node->done = true;
while (!list_empty(&ctx->rsrc_ref_list)) {
@@ -7661,7 +7671,7 @@ static void io_rsrc_data_ref_zero(struct percpu_ref *ref)
list_del(&ref_node->node);
first_add |= llist_add(&ref_node->llist, &ctx->rsrc_put_llist);
}
- spin_unlock_bh(&ctx->rsrc_ref_lock);
+ io_rsrc_ref_unlock(ctx);
if (percpu_ref_is_dying(&data->refs))
delay = 0;
@@ -7792,9 +7802,9 @@ static int io_sqe_files_register(struct io_ring_ctx *ctx, void __user *arg,
}
file_data->node = ref_node;
- spin_lock_bh(&ctx->rsrc_ref_lock);
+ io_rsrc_ref_lock(ctx);
list_add_tail(&ref_node->node, &ctx->rsrc_ref_list);
- spin_unlock_bh(&ctx->rsrc_ref_lock);
+ io_rsrc_ref_unlock(ctx);
percpu_ref_get(&file_data->refs);
return ret;
out_fput:
@@ -7884,10 +7894,10 @@ static void switch_fixed_rsrc_ref_node(struct fixed_rsrc_ref_node *ref_node,
struct io_ring_ctx *ctx)
{
percpu_ref_kill(&data->node->refs);
- spin_lock_bh(&ctx->rsrc_ref_lock);
+ io_rsrc_ref_lock(ctx);
list_add_tail(&ref_node->node, &ctx->rsrc_ref_list);
data->node = ref_node;
- spin_unlock_bh(&ctx->rsrc_ref_lock);
+ io_rsrc_ref_unlock(ctx);
}
static int __io_sqe_files_update(struct io_ring_ctx *ctx,
--
1.8.3.1
next prev parent reply other threads:[~2020-12-07 22:17 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-07 22:15 [PATCH v2 00/13] io_uring: buffer registration enhancements Bijan Mottahedeh
2020-12-07 22:15 ` [PATCH v2 01/13] io_uring: modularize io_sqe_buffer_register Bijan Mottahedeh
2020-12-07 22:15 ` [PATCH v2 02/13] io_uring: modularize io_sqe_buffers_register Bijan Mottahedeh
2020-12-07 22:15 ` [PATCH v2 03/13] io_uring: generalize fixed file functionality Bijan Mottahedeh
2020-12-07 22:15 ` [PATCH v2 04/13] io_uring: rename fixed_file variables to fixed_rsrc Bijan Mottahedeh
2020-12-07 22:15 ` [PATCH v2 05/13] io_uring: separate ref_list from fixed_rsrc_data Bijan Mottahedeh
2020-12-07 22:15 ` [PATCH v2 06/13] io_uring: generalize fixed_file_ref_node functionality Bijan Mottahedeh
2020-12-16 14:53 ` Pavel Begunkov
2020-12-18 18:06 ` Bijan Mottahedeh
2020-12-07 22:15 ` Bijan Mottahedeh [this message]
2020-12-07 22:15 ` [PATCH v2 08/13] io_uring: implement fixed buffers registration similar to fixed files Bijan Mottahedeh
2020-12-16 14:58 ` Pavel Begunkov
2020-12-18 18:06 ` Bijan Mottahedeh
2020-12-16 14:59 ` Pavel Begunkov
2020-12-07 22:15 ` [PATCH v2 09/13] io_uring: create common fixed_rsrc_ref_node handling routines Bijan Mottahedeh
2020-12-07 22:15 ` [PATCH v2 10/13] io_uring: generalize files_update functionlity to rsrc_update Bijan Mottahedeh
2020-12-07 22:15 ` [PATCH v2 11/13] io_uring: support buffer registration updates Bijan Mottahedeh
2020-12-07 22:15 ` [PATCH v2 12/13] io_uring: create common fixed_rsrc_data allocation routines Bijan Mottahedeh
2020-12-07 22:15 ` [PATCH v2 13/13] io_uring: support buffer registration sharing Bijan Mottahedeh
2020-12-16 15:29 ` Pavel Begunkov
2020-12-18 18:06 ` Bijan Mottahedeh
2021-01-07 0:50 ` Bijan Mottahedeh
2021-01-11 5:19 ` Pavel Begunkov
2021-01-12 21:50 ` Bijan Mottahedeh
2020-12-14 19:09 ` [PATCH v2 00/13] io_uring: buffer registration enhancements Bijan Mottahedeh
2020-12-14 19:29 ` Jens Axboe
2020-12-14 19:43 ` Bijan Mottahedeh
2020-12-14 19:47 ` Jens Axboe
2020-12-14 20:59 ` Pavel Begunkov
2020-12-18 18:06 ` Bijan Mottahedeh
2020-12-16 15:34 ` Pavel Begunkov
2020-12-18 18:06 ` Bijan Mottahedeh
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1607379352-68109-8-git-send-email-bijan.mottahedeh@oracle.com \
[email protected] \
[email protected] \
[email protected] \
[email protected] \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox