* [STABLE REQUEST] tipc: improve function tipc_wait_for_cond() [not found] ` <20190219042048.23243-2-tung.q.nguyen@dektech.com.au> @ 2023-03-14 17:45 ` Lee Jones 2023-03-14 17:57 ` Greg KH 0 siblings, 1 reply; 4+ messages in thread From: Lee Jones @ 2023-03-14 17:45 UTC (permalink / raw) To: Tung Nguyen, stable; +Cc: davem, netdev, tipc-discussion Dear Stable, > Commit 844cf763fba6 ("tipc: make macro tipc_wait_for_cond() smp safe") > replaced finish_wait() with remove_wait_queue() but still used > prepare_to_wait(). This causes unnecessary conditional > checking before adding to wait queue in prepare_to_wait(). > > This commit replaces prepare_to_wait() with add_wait_queue() > as the pair function with remove_wait_queue(). > > Acked-by: Ying Xue <ying.xue@windriver.com> > Acked-by: Jon Maloy <jon.maloy@ericsson.com> > Signed-off-by: Tung Nguyen <tung.q.nguyen@dektech.com.au> > --- > net/tipc/socket.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/net/tipc/socket.c b/net/tipc/socket.c > index 1217c90a363b..81b87916a0eb 100644 > --- a/net/tipc/socket.c > +++ b/net/tipc/socket.c > @@ -388,7 +388,7 @@ static int tipc_sk_sock_err(struct socket *sock, long *timeout) > rc_ = tipc_sk_sock_err((sock_), timeo_); \ > if (rc_) \ > break; \ > - prepare_to_wait(sk_sleep(sk_), &wait_, TASK_INTERRUPTIBLE); \ > + add_wait_queue(sk_sleep(sk_), &wait_); \ > release_sock(sk_); \ > *(timeo_) = wait_woken(&wait_, TASK_INTERRUPTIBLE, *(timeo_)); \ > sched_annotate_sleep(); \ Could we have this ol' classic backported to v4.19 and v4.14 please? -- Lee Jones [李琼斯] ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [STABLE REQUEST] tipc: improve function tipc_wait_for_cond() 2023-03-14 17:45 ` [STABLE REQUEST] tipc: improve function tipc_wait_for_cond() Lee Jones @ 2023-03-14 17:57 ` Greg KH 2023-03-14 18:04 ` Lee Jones 0 siblings, 1 reply; 4+ messages in thread From: Greg KH @ 2023-03-14 17:57 UTC (permalink / raw) To: Lee Jones; +Cc: Tung Nguyen, stable, davem, netdev, tipc-discussion On Tue, Mar 14, 2023 at 05:45:37PM +0000, Lee Jones wrote: > Dear Stable, > > > Commit 844cf763fba6 ("tipc: make macro tipc_wait_for_cond() smp safe") > > replaced finish_wait() with remove_wait_queue() but still used > > prepare_to_wait(). This causes unnecessary conditional > > checking before adding to wait queue in prepare_to_wait(). > > > > This commit replaces prepare_to_wait() with add_wait_queue() > > as the pair function with remove_wait_queue(). > > > > Acked-by: Ying Xue <ying.xue@windriver.com> > > Acked-by: Jon Maloy <jon.maloy@ericsson.com> > > Signed-off-by: Tung Nguyen <tung.q.nguyen@dektech.com.au> > > --- > > net/tipc/socket.c | 2 +- > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > diff --git a/net/tipc/socket.c b/net/tipc/socket.c > > index 1217c90a363b..81b87916a0eb 100644 > > --- a/net/tipc/socket.c > > +++ b/net/tipc/socket.c > > @@ -388,7 +388,7 @@ static int tipc_sk_sock_err(struct socket *sock, long *timeout) > > rc_ = tipc_sk_sock_err((sock_), timeo_); \ > > if (rc_) \ > > break; \ > > - prepare_to_wait(sk_sleep(sk_), &wait_, TASK_INTERRUPTIBLE); \ > > + add_wait_queue(sk_sleep(sk_), &wait_); \ > > release_sock(sk_); \ > > *(timeo_) = wait_woken(&wait_, TASK_INTERRUPTIBLE, *(timeo_)); \ > > sched_annotate_sleep(); \ > > Could we have this ol' classic backported to v4.19 and v4.14 please? What is the git commit id? ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [STABLE REQUEST] tipc: improve function tipc_wait_for_cond() 2023-03-14 17:57 ` Greg KH @ 2023-03-14 18:04 ` Lee Jones 2023-03-15 7:24 ` Greg KH 0 siblings, 1 reply; 4+ messages in thread From: Lee Jones @ 2023-03-14 18:04 UTC (permalink / raw) To: Greg KH; +Cc: Tung Nguyen, stable, davem, netdev, tipc-discussion On Tue, 14 Mar 2023, Greg KH wrote: > On Tue, Mar 14, 2023 at 05:45:37PM +0000, Lee Jones wrote: > > Dear Stable, > > > > > Commit 844cf763fba6 ("tipc: make macro tipc_wait_for_cond() smp safe") > > > replaced finish_wait() with remove_wait_queue() but still used > > > prepare_to_wait(). This causes unnecessary conditional > > > checking before adding to wait queue in prepare_to_wait(). > > > > > > This commit replaces prepare_to_wait() with add_wait_queue() > > > as the pair function with remove_wait_queue(). > > > > > > Acked-by: Ying Xue <ying.xue@windriver.com> > > > Acked-by: Jon Maloy <jon.maloy@ericsson.com> > > > Signed-off-by: Tung Nguyen <tung.q.nguyen@dektech.com.au> > > > --- > > > net/tipc/socket.c | 2 +- > > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > > > diff --git a/net/tipc/socket.c b/net/tipc/socket.c > > > index 1217c90a363b..81b87916a0eb 100644 > > > --- a/net/tipc/socket.c > > > +++ b/net/tipc/socket.c > > > @@ -388,7 +388,7 @@ static int tipc_sk_sock_err(struct socket *sock, long *timeout) > > > rc_ = tipc_sk_sock_err((sock_), timeo_); \ > > > if (rc_) \ > > > break; \ > > > - prepare_to_wait(sk_sleep(sk_), &wait_, TASK_INTERRUPTIBLE); \ > > > + add_wait_queue(sk_sleep(sk_), &wait_); \ > > > release_sock(sk_); \ > > > *(timeo_) = wait_woken(&wait_, TASK_INTERRUPTIBLE, *(timeo_)); \ > > > sched_annotate_sleep(); \ > > > > Could we have this ol' classic backported to v4.19 and v4.14 please? > > What is the git commit id? Sorry, it's 223b7329ec6a0. -- Lee Jones [李琼斯] ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [STABLE REQUEST] tipc: improve function tipc_wait_for_cond() 2023-03-14 18:04 ` Lee Jones @ 2023-03-15 7:24 ` Greg KH 0 siblings, 0 replies; 4+ messages in thread From: Greg KH @ 2023-03-15 7:24 UTC (permalink / raw) To: Lee Jones; +Cc: Tung Nguyen, stable, davem, netdev, tipc-discussion On Tue, Mar 14, 2023 at 06:04:30PM +0000, Lee Jones wrote: > On Tue, 14 Mar 2023, Greg KH wrote: > > > On Tue, Mar 14, 2023 at 05:45:37PM +0000, Lee Jones wrote: > > > Dear Stable, > > > > > > > Commit 844cf763fba6 ("tipc: make macro tipc_wait_for_cond() smp safe") > > > > replaced finish_wait() with remove_wait_queue() but still used > > > > prepare_to_wait(). This causes unnecessary conditional > > > > checking before adding to wait queue in prepare_to_wait(). > > > > > > > > This commit replaces prepare_to_wait() with add_wait_queue() > > > > as the pair function with remove_wait_queue(). > > > > > > > > Acked-by: Ying Xue <ying.xue@windriver.com> > > > > Acked-by: Jon Maloy <jon.maloy@ericsson.com> > > > > Signed-off-by: Tung Nguyen <tung.q.nguyen@dektech.com.au> > > > > --- > > > > net/tipc/socket.c | 2 +- > > > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > > > > > diff --git a/net/tipc/socket.c b/net/tipc/socket.c > > > > index 1217c90a363b..81b87916a0eb 100644 > > > > --- a/net/tipc/socket.c > > > > +++ b/net/tipc/socket.c > > > > @@ -388,7 +388,7 @@ static int tipc_sk_sock_err(struct socket *sock, long *timeout) > > > > rc_ = tipc_sk_sock_err((sock_), timeo_); \ > > > > if (rc_) \ > > > > break; \ > > > > - prepare_to_wait(sk_sleep(sk_), &wait_, TASK_INTERRUPTIBLE); \ > > > > + add_wait_queue(sk_sleep(sk_), &wait_); \ > > > > release_sock(sk_); \ > > > > *(timeo_) = wait_woken(&wait_, TASK_INTERRUPTIBLE, *(timeo_)); \ > > > > sched_annotate_sleep(); \ > > > > > > Could we have this ol' classic backported to v4.19 and v4.14 please? > > > > What is the git commit id? > > Sorry, it's 223b7329ec6a0. Now queued up, thanks. greg k-h ^ permalink raw reply [flat|nested] 4+ messages in thread
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2023-03-14 17:45 ` [STABLE REQUEST] tipc: improve function tipc_wait_for_cond() Lee Jones
2023-03-14 17:57 ` Greg KH
2023-03-14 18:04 ` Lee Jones
2023-03-15 7:24 ` Greg KH
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