[PATCH 0/3] Remove wrapper functions from ldlm_pool

[PATCH 0/3] Remove wrapper functions from ldlm_pool

[Shivani Bhardwaj]

This patchset removes different wrapper functions from the file ldlm_pool
and replaces their calls with the function they wrapped.
After applying this patchset, code becomes cleaner.

Shivani Bhardwaj (3):
  Staging: lustre: ldlm_pool: Remove unneeded wrapper function
  Staging: lustre: ldlm_pool: Drop wrapper function
  Staging: lustre: ldlm_pool: Drop unneeded wrapper function

 drivers/staging/lustre/lustre/ldlm/ldlm_pool.c | 47 +++++++++-----------------
 1 file changed, 16 insertions(+), 31 deletions(-)

-- 
2.1.0

[PATCH 1/3] Staging: lustre: ldlm_pool: Remove unneeded wrapper function

[Shivani Bhardwaj]

Remove the function ldlm_pl2ns() and replace its calls with the function
it wrapped.

Signed-off-by: Shivani Bhardwaj <shivanib134@gmail.com>
---
 drivers/staging/lustre/lustre/ldlm/ldlm_pool.c | 25 +++++++++++++------------
 1 file changed, 13 insertions(+), 12 deletions(-)

diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c b/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c
index 1a4eef6..2beb36b 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c
@@ -176,11 +176,6 @@ enum {
 	LDLM_POOL_LAST_STAT
 };
 
-static inline struct ldlm_namespace *ldlm_pl2ns(struct ldlm_pool *pl)
-{
-	return container_of(pl, struct ldlm_namespace, ns_pool);
-}
-
 /**
  * Calculates suggested grant_step in % of available locks for passed
  * \a period. This is later used in grant_plan calculations.
@@ -254,7 +249,8 @@ static void ldlm_pool_recalc_stats(struct ldlm_pool *pl)
 }
 
 /**
- * Sets SLV and Limit from ldlm_pl2ns(pl)->ns_obd tp passed \a pl.
+ * Sets SLV and Limit from container_of(pl, struct ldlm_namespace,
+ * ns_pool)->ns_obd tp passed \a pl.
  */
 static void ldlm_cli_pool_pop_slv(struct ldlm_pool *pl)
 {
@@ -264,7 +260,8 @@ static void ldlm_cli_pool_pop_slv(struct ldlm_pool *pl)
 	 * Get new SLV and Limit from obd which is updated with coming
 	 * RPCs.
 	 */
-	obd = ldlm_pl2ns(pl)->ns_obd;
+	obd = container_of(pl, struct ldlm_namespace,
+			   ns_pool)->ns_obd;
 	LASSERT(obd != NULL);
 	read_lock(&obd->obd_pool_lock);
 	pl->pl_server_lock_volume = obd->obd_pool_slv;
@@ -304,7 +301,8 @@ static int ldlm_cli_pool_recalc(struct ldlm_pool *pl)
 	/*
 	 * Do not cancel locks in case lru resize is disabled for this ns.
 	 */
-	if (!ns_connect_lru_resize(ldlm_pl2ns(pl))) {
+	if (!ns_connect_lru_resize(container_of(pl, struct ldlm_namespace,
+						ns_pool))) {
 		ret = 0;
 		goto out;
 	}
@@ -315,7 +313,8 @@ static int ldlm_cli_pool_recalc(struct ldlm_pool *pl)
 	 * It may be called when SLV has changed much, this is why we do not
 	 * take into account pl->pl_recalc_time here.
 	 */
-	ret = ldlm_cancel_lru(ldlm_pl2ns(pl), 0, LCF_ASYNC, LDLM_CANCEL_LRUR);
+	ret = ldlm_cancel_lru(container_of(pl, struct ldlm_namespace, ns_pool),
+			      0, LCF_ASYNC, LDLM_CANCEL_LRUR);
 
 out:
 	spin_lock(&pl->pl_lock);
@@ -341,7 +340,7 @@ static int ldlm_cli_pool_shrink(struct ldlm_pool *pl,
 	struct ldlm_namespace *ns;
 	int unused;
 
-	ns = ldlm_pl2ns(pl);
+	ns = container_of(pl, struct ldlm_namespace, ns_pool);
 
 	/*
 	 * Do not cancel locks in case lru resize is disabled for this ns.
@@ -558,7 +557,8 @@ static struct kobj_type ldlm_pl_ktype = {
 
 static int ldlm_pool_sysfs_init(struct ldlm_pool *pl)
 {
-	struct ldlm_namespace *ns = ldlm_pl2ns(pl);
+	struct ldlm_namespace *ns = container_of(pl, struct ldlm_namespace,
+						 ns_pool);
 	int err;
 
 	init_completion(&pl->pl_kobj_unregister);
@@ -570,7 +570,8 @@ static int ldlm_pool_sysfs_init(struct ldlm_pool *pl)
 
 static int ldlm_pool_debugfs_init(struct ldlm_pool *pl)
 {
-	struct ldlm_namespace *ns = ldlm_pl2ns(pl);
+	struct ldlm_namespace *ns = container_of(pl, struct ldlm_namespace,
+						 ns_pool);
 	struct dentry *debugfs_ns_parent;
 	struct lprocfs_vars pool_vars[2];
 	char *var_name = NULL;
-- 
2.1.0

[PATCH 2/3] Staging: lustre: ldlm_pool: Drop wrapper function

[Shivani Bhardwaj]

Remove the function ldlm_pool_get_limit() and replace its calls with the
function it wrapped.

Signed-off-by: Shivani Bhardwaj <shivanib134@gmail.com>
---
 drivers/staging/lustre/lustre/ldlm/ldlm_pool.c | 10 +---------
 1 file changed, 1 insertion(+), 9 deletions(-)

diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c b/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c
index 2beb36b..20cf389 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c
@@ -208,14 +208,6 @@ static inline int ldlm_pool_t2gsp(unsigned int t)
 }
 
 /**
- * Returns current \a pl limit.
- */
-static __u32 ldlm_pool_get_limit(struct ldlm_pool *pl)
-{
-	return atomic_read(&pl->pl_limit);
-}
-
-/**
  * Sets passed \a limit to \a pl.
  */
 static void ldlm_pool_set_limit(struct ldlm_pool *pl, __u32 limit)
@@ -452,7 +444,7 @@ static int lprocfs_pool_state_seq_show(struct seq_file *m, void *unused)
 	spin_lock(&pl->pl_lock);
 	slv = pl->pl_server_lock_volume;
 	clv = pl->pl_client_lock_volume;
-	limit = ldlm_pool_get_limit(pl);
+	limit = atomic_read(&pl->pl_limit);
 	granted = atomic_read(&pl->pl_granted);
 	grant_rate = atomic_read(&pl->pl_grant_rate);
 	cancel_rate = atomic_read(&pl->pl_cancel_rate);
-- 
2.1.0

[PATCH 3/3] Staging: lustre: ldlm_pool: Drop unneeded wrapper function

[Shivani Bhardwaj]

Remove the function ldlm_pool_set_limit() and replace its calls with the
function it wrapped.

Signed-off-by: Shivani Bhardwaj <shivanib134@gmail.com>
---
 drivers/staging/lustre/lustre/ldlm/ldlm_pool.c | 12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)

diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c b/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c
index 20cf389..e59b286 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c
@@ -208,14 +208,6 @@ static inline int ldlm_pool_t2gsp(unsigned int t)
 }
 
 /**
- * Sets passed \a limit to \a pl.
- */
-static void ldlm_pool_set_limit(struct ldlm_pool *pl, __u32 limit)
-{
-	atomic_set(&pl->pl_limit, limit);
-}
-
-/**
  * Recalculates next stats on passed \a pl.
  *
  * \pre ->pl_lock is locked.
@@ -257,7 +249,7 @@ static void ldlm_cli_pool_pop_slv(struct ldlm_pool *pl)
 	LASSERT(obd != NULL);
 	read_lock(&obd->obd_pool_lock);
 	pl->pl_server_lock_volume = obd->obd_pool_slv;
-	ldlm_pool_set_limit(pl, obd->obd_pool_limit);
+	atomic_set(&pl->pl_limit, obd->obd_pool_limit);
 	read_unlock(&obd->obd_pool_lock);
 }
 
@@ -678,7 +670,7 @@ int ldlm_pool_init(struct ldlm_pool *pl, struct ldlm_namespace *ns,
 	snprintf(pl->pl_name, sizeof(pl->pl_name), "ldlm-pool-%s-%d",
 		 ldlm_ns_name(ns), idx);
 
-	ldlm_pool_set_limit(pl, 1);
+	atomic_set(&pl->pl_limit, 1);
 	pl->pl_server_lock_volume = 0;
 	pl->pl_ops = &ldlm_cli_pool_ops;
 	pl->pl_recalc_period = LDLM_POOL_CLI_DEF_RECALC_PERIOD;
-- 
2.1.0

RE: [PATCH 3/3] Staging: lustre: ldlm_pool: Drop unneeded wrapper function

[Simmons, James A.]

>-----Original Message-----
>From: devel [mailto:driverdev-devel-bounces@linuxdriverproject.org] On Behalf Of Shivani Bhardwaj
>Sent: Friday, November 06, 2015 12:45 PM
>To: gregkh@linuxfoundation.org
>Cc: oleg.drokin@intel.com; devel@driverdev.osuosl.org; andreas.dilger@intel.com; linux-kernel@vger.kernel.org
>Subject: [PATCH 3/3] Staging: lustre: ldlm_pool: Drop unneeded wrapper function
>
>Remove the function ldlm_pool_set_limit() and replace its calls with the
>function it wrapped.
>
>Signed-off-by: Shivani Bhardwaj <shivanib134@gmail.com>
>---
> drivers/staging/lustre/lustre/ldlm/ldlm_pool.c | 12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)
>

Acked-by: James Simmons <jsimmons@infradead.org>

diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c b/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c
index 20cf389..e59b286 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c
@@ -208,14 +208,6 @@ static inline int ldlm_pool_t2gsp(unsigned int t)
 }
 
 /**
- * Sets passed \a limit to \a pl.
- */
-static void ldlm_pool_set_limit(struct ldlm_pool *pl, __u32 limit)
-{
-	atomic_set(&pl->pl_limit, limit);
-}
-
-/**
  * Recalculates next stats on passed \a pl.
  *
  * \pre ->pl_lock is locked.
@@ -257,7 +249,7 @@ static void ldlm_cli_pool_pop_slv(struct ldlm_pool *pl)
 	LASSERT(obd != NULL);
 	read_lock(&obd->obd_pool_lock);
 	pl->pl_server_lock_volume = obd->obd_pool_slv;
-	ldlm_pool_set_limit(pl, obd->obd_pool_limit);
+	atomic_set(&pl->pl_limit, obd->obd_pool_limit);
 	read_unlock(&obd->obd_pool_lock);
 }
 
@@ -678,7 +670,7 @@ int ldlm_pool_init(struct ldlm_pool *pl, struct ldlm_namespace *ns,
 	snprintf(pl->pl_name, sizeof(pl->pl_name), "ldlm-pool-%s-%d",
 		 ldlm_ns_name(ns), idx);
 
-	ldlm_pool_set_limit(pl, 1);
+	atomic_set(&pl->pl_limit, 1);
 	pl->pl_server_lock_volume = 0;
 	pl->pl_ops = &ldlm_cli_pool_ops;
 	pl->pl_recalc_period = LDLM_POOL_CLI_DEF_RECALC_PERIOD;
-- 
2.1.0

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RE: [PATCH 2/3] Staging: lustre: ldlm_pool: Drop wrapper function

[Simmons, James A.]

>-----Original Message-----
>From: devel [mailto:driverdev-devel-bounces@linuxdriverproject.org] On Behalf Of Shivani Bhardwaj
>Sent: Friday, November 06, 2015 12:44 PM
>To: gregkh@linuxfoundation.org
>Cc: oleg.drokin@intel.com; devel@driverdev.osuosl.org; andreas.dilger@intel.com; linux-kernel@vger.kernel.org
>Subject: [PATCH 2/3] Staging: lustre: ldlm_pool: Drop wrapper function
>
>Remove the function ldlm_pool_get_limit() and replace its calls with the
>function it wrapped.
>
>Signed-off-by: Shivani Bhardwaj <shivanib134@gmail.com>
>---
> drivers/staging/lustre/lustre/ldlm/ldlm_pool.c | 10 +---------
> 1 file changed, 1 insertion(+), 9 deletions(-)

Acked-by: James Simmons <jsimmons@infradead.org>

diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c b/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c
index 2beb36b..20cf389 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c
@@ -208,14 +208,6 @@ static inline int ldlm_pool_t2gsp(unsigned int t)
 }
 
 /**
- * Returns current \a pl limit.
- */
-static __u32 ldlm_pool_get_limit(struct ldlm_pool *pl)
-{
-	return atomic_read(&pl->pl_limit);
-}
-
-/**
  * Sets passed \a limit to \a pl.
  */
 static void ldlm_pool_set_limit(struct ldlm_pool *pl, __u32 limit)
@@ -452,7 +444,7 @@ static int lprocfs_pool_state_seq_show(struct seq_file *m, void *unused)
 	spin_lock(&pl->pl_lock);
 	slv = pl->pl_server_lock_volume;
 	clv = pl->pl_client_lock_volume;
-	limit = ldlm_pool_get_limit(pl);
+	limit = atomic_read(&pl->pl_limit);
 	granted = atomic_read(&pl->pl_granted);
 	grant_rate = atomic_read(&pl->pl_grant_rate);
 	cancel_rate = atomic_read(&pl->pl_cancel_rate);
-- 
2.1.0

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RE: [PATCH 1/3] Staging: lustre: ldlm_pool: Remove unneeded wrapper function

[Simmons, James A.]

>-----Original Message-----
>From: devel [mailto:driverdev-devel-bounces@linuxdriverproject.org] On Behalf Of Shivani Bhardwaj
>Sent: Friday, November 06, 2015 12:43 PM
>To: gregkh@linuxfoundation.org
>Cc: oleg.drokin@intel.com; devel@driverdev.osuosl.org; andreas.dilger@intel.com; linux-kernel@vger.kernel.org
>Subject: [PATCH 1/3] Staging: lustre: ldlm_pool: Remove unneeded wrapper function
>
>Remove the function ldlm_pl2ns() and replace its calls with the function
>it wrapped.
>
>Signed-off-by: Shivani Bhardwaj <shivanib134@gmail.com>
>---
> drivers/staging/lustre/lustre/ldlm/ldlm_pool.c | 25 +++++++++++++------------
> 1 file changed, 13 insertions(+), 12 deletions(-)

Acked-by: James Simmons <jsimmons@infradead.org>

diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c b/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c
index 1a4eef6..2beb36b 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c
@@ -176,11 +176,6 @@ enum {
 	LDLM_POOL_LAST_STAT
 };
 
-static inline struct ldlm_namespace *ldlm_pl2ns(struct ldlm_pool *pl)
-{
-	return container_of(pl, struct ldlm_namespace, ns_pool);
-}
-
 /**
  * Calculates suggested grant_step in % of available locks for passed
  * \a period. This is later used in grant_plan calculations.
@@ -254,7 +249,8 @@ static void ldlm_pool_recalc_stats(struct ldlm_pool *pl)
 }
 
 /**
- * Sets SLV and Limit from ldlm_pl2ns(pl)->ns_obd tp passed \a pl.
+ * Sets SLV and Limit from container_of(pl, struct ldlm_namespace,
+ * ns_pool)->ns_obd tp passed \a pl.
  */
 static void ldlm_cli_pool_pop_slv(struct ldlm_pool *pl)
 {
@@ -264,7 +260,8 @@ static void ldlm_cli_pool_pop_slv(struct ldlm_pool *pl)
 	 * Get new SLV and Limit from obd which is updated with coming
 	 * RPCs.
 	 */
-	obd = ldlm_pl2ns(pl)->ns_obd;
+	obd = container_of(pl, struct ldlm_namespace,
+			   ns_pool)->ns_obd;
 	LASSERT(obd != NULL);
 	read_lock(&obd->obd_pool_lock);
 	pl->pl_server_lock_volume = obd->obd_pool_slv;
@@ -304,7 +301,8 @@ static int ldlm_cli_pool_recalc(struct ldlm_pool *pl)
 	/*
 	 * Do not cancel locks in case lru resize is disabled for this ns.
 	 */
-	if (!ns_connect_lru_resize(ldlm_pl2ns(pl))) {
+	if (!ns_connect_lru_resize(container_of(pl, struct ldlm_namespace,
+						ns_pool))) {
 		ret = 0;
 		goto out;
 	}
@@ -315,7 +313,8 @@ static int ldlm_cli_pool_recalc(struct ldlm_pool *pl)
 	 * It may be called when SLV has changed much, this is why we do not
 	 * take into account pl->pl_recalc_time here.
 	 */
-	ret = ldlm_cancel_lru(ldlm_pl2ns(pl), 0, LCF_ASYNC, LDLM_CANCEL_LRUR);
+	ret = ldlm_cancel_lru(container_of(pl, struct ldlm_namespace, ns_pool),
+			      0, LCF_ASYNC, LDLM_CANCEL_LRUR);
 
 out:
 	spin_lock(&pl->pl_lock);
@@ -341,7 +340,7 @@ static int ldlm_cli_pool_shrink(struct ldlm_pool *pl,
 	struct ldlm_namespace *ns;
 	int unused;
 
-	ns = ldlm_pl2ns(pl);
+	ns = container_of(pl, struct ldlm_namespace, ns_pool);
 
 	/*
 	 * Do not cancel locks in case lru resize is disabled for this ns.
@@ -558,7 +557,8 @@ static struct kobj_type ldlm_pl_ktype = {
 
 static int ldlm_pool_sysfs_init(struct ldlm_pool *pl)
 {
-	struct ldlm_namespace *ns = ldlm_pl2ns(pl);
+	struct ldlm_namespace *ns = container_of(pl, struct ldlm_namespace,
+						 ns_pool);
 	int err;
 
 	init_completion(&pl->pl_kobj_unregister);
@@ -570,7 +570,8 @@ static int ldlm_pool_sysfs_init(struct ldlm_pool *pl)
 
 static int ldlm_pool_debugfs_init(struct ldlm_pool *pl)
 {
-	struct ldlm_namespace *ns = ldlm_pl2ns(pl);
+	struct ldlm_namespace *ns = container_of(pl, struct ldlm_namespace,
+						 ns_pool);
 	struct dentry *debugfs_ns_parent;
 	struct lprocfs_vars pool_vars[2];
 	char *var_name = NULL;
-- 
2.1.0

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