[PATCH 7/8] pseries: phyp dump: Tracking memory range freed.
This patch tracks the size freed. For now it does a simple
rudimentary calculation of the ranges freed. The idea is
to keep it simple at the external shell script level and
send in large chunks for now.
Signed-off-by: Manish Ahuja [EMAIL PROTECTED]
---
arch/powerpc/platforms/pseries/phyp_dump.c | 35 +
1 file changed, 35 insertions(+)
Index: 2.6.25-rc1/arch/powerpc/platforms/pseries/phyp_dump.c
===
--- 2.6.25-rc1.orig/arch/powerpc/platforms/pseries/phyp_dump.c 2008-03-21
22:14:00.0 -0500
+++ 2.6.25-rc1/arch/powerpc/platforms/pseries/phyp_dump.c 2008-03-21
22:14:05.0 -0500
@@ -261,6 +261,39 @@ static void release_memory_range(unsigne
}
}
+/**
+ * track_freed_range -- Counts the range being freed.
+ * Once the counter goes to zero, it re-registers dump for
+ * future use.
+ */
+static void
+track_freed_range(unsigned long addr, unsigned long length)
+{
+ static unsigned long scratch_area_size, reserved_area_size;
+
+ if (addr phyp_dump_info-init_reserve_start)
+ return;
+
+ if ((addr = phyp_dump_info-init_reserve_start)
+ (addr = phyp_dump_info-init_reserve_start +
+phyp_dump_info-init_reserve_size))
+ reserved_area_size += length;
+
+ if ((addr = phyp_dump_info-reserved_scratch_addr)
+ (addr = phyp_dump_info-reserved_scratch_addr +
+phyp_dump_info-reserved_scratch_size))
+ scratch_area_size += length;
+
+ if ((reserved_area_size == phyp_dump_info-init_reserve_size)
+ (scratch_area_size == phyp_dump_info-reserved_scratch_size)) {
+
+ invalidate_last_dump(phdr,
+ phyp_dump_info-reserved_scratch_addr);
+ register_dump_area(phdr,
+ phyp_dump_info-reserved_scratch_addr);
+ }
+}
+
/* - */
/**
* sysfs_release_region -- sysfs interface to release memory range.
@@ -285,6 +318,8 @@ static ssize_t store_release_region(stru
if (ret != 2)
return -EINVAL;
+ track_freed_range(start_addr, length);
+
/* Range-check - don't free any reserved memory that
* wasn't reserved for phyp-dump */
if (start_addr phyp_dump_info-init_reserve_start)
___
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Linuxppc-dev@ozlabs.org
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[PATCH 7/8] pseries: phyp dump: Tracking memory range freed.
This patch tracks the size freed. For now it does a simple
rudimentary calculation of the ranges freed. The idea is
to keep it simple at the external shell script level and
send in large chunks for now.
Signed-off-by: Manish Ahuja [EMAIL PROTECTED]
-
---
arch/powerpc/platforms/pseries/phyp_dump.c | 35 +
1 file changed, 35 insertions(+)
Index: 2.6.25-rc1/arch/powerpc/platforms/pseries/phyp_dump.c
===
--- 2.6.25-rc1.orig/arch/powerpc/platforms/pseries/phyp_dump.c 2008-02-28
23:36:47.0 -0600
+++ 2.6.25-rc1/arch/powerpc/platforms/pseries/phyp_dump.c 2008-02-28
23:36:49.0 -0600
@@ -262,6 +262,39 @@ void release_memory_range(unsigned long
}
}
+/**
+ * track_freed_range -- Counts the range being freed.
+ * Once the counter goes to zero, it re-registers dump for
+ * future use.
+ */
+static void
+track_freed_range(unsigned long addr, unsigned long length)
+{
+ static unsigned long scratch_area_size, reserved_area_size;
+
+ if (addr phyp_dump_info-init_reserve_start)
+ return;
+
+ if ((addr = phyp_dump_info-init_reserve_start)
+ (addr = phyp_dump_info-init_reserve_start +
+phyp_dump_info-init_reserve_size))
+ reserved_area_size += length;
+
+ if ((addr = phyp_dump_info-reserved_scratch_addr)
+ (addr = phyp_dump_info-reserved_scratch_addr +
+phyp_dump_info-reserved_scratch_size))
+ scratch_area_size += length;
+
+ if ((reserved_area_size == phyp_dump_info-init_reserve_size)
+ (scratch_area_size == phyp_dump_info-reserved_scratch_size)) {
+
+ invalidate_last_dump(phdr,
+ phyp_dump_info-reserved_scratch_addr);
+ register_dump_area(phdr,
+ phyp_dump_info-reserved_scratch_addr);
+ }
+}
+
/* - */
/**
* sysfs_release_region -- sysfs interface to release memory range.
@@ -286,6 +319,8 @@ static ssize_t store_release_region(stru
if (ret != 2)
return -EINVAL;
+ track_freed_range(start_addr, length);
+
/* Range-check - don't free any reserved memory that
* wasn't reserved for phyp-dump */
if (start_addr phyp_dump_info-init_reserve_start)
___
Linuxppc-dev mailing list
Linuxppc-dev@ozlabs.org
https://ozlabs.org/mailman/listinfo/linuxppc-dev
[PATCH 7/8] pseries: phyp dump: Tracking memory range freed.
This patch tracks the size freed. For now it does a simple
rudimentary calculation of the ranges freed. The idea is
to keep it simple at the external shell script level and
send in large chunks for now.
Signed-off-by: Manish Ahuja [EMAIL PROTECTED]
-
---
arch/powerpc/platforms/pseries/phyp_dump.c | 35 +
1 file changed, 35 insertions(+)
Index: 2.6.25-rc1/arch/powerpc/platforms/pseries/phyp_dump.c
===
--- 2.6.25-rc1.orig/arch/powerpc/platforms/pseries/phyp_dump.c 2008-02-18
03:31:22.0 -0600
+++ 2.6.25-rc1/arch/powerpc/platforms/pseries/phyp_dump.c 2008-02-18
03:31:30.0 -0600
@@ -260,6 +260,39 @@ void release_memory_range(unsigned long
}
}
+/**
+ * track_freed_range -- Counts the range being freed.
+ * Once the counter goes to zero, it re-registers dump for
+ * future use.
+ */
+static void
+track_freed_range(unsigned long addr, unsigned long length)
+{
+ static unsigned long scratch_area_size, reserved_area_size;
+
+ if (addr phyp_dump_info-init_reserve_start)
+ return;
+
+ if ((addr = phyp_dump_info-init_reserve_start)
+ (addr = phyp_dump_info-init_reserve_start +
+phyp_dump_info-init_reserve_size))
+ reserved_area_size += length;
+
+ if ((addr = phyp_dump_info-reserved_scratch_addr)
+ (addr = phyp_dump_info-reserved_scratch_addr +
+phyp_dump_info-reserved_scratch_size))
+ scratch_area_size += length;
+
+ if ((reserved_area_size == phyp_dump_info-init_reserve_size)
+ (scratch_area_size == phyp_dump_info-reserved_scratch_size)) {
+
+ invalidate_last_dump(phdr,
+ phyp_dump_info-reserved_scratch_addr);
+ register_dump_area(phdr,
+ phyp_dump_info-reserved_scratch_addr);
+ }
+}
+
/* - */
/**
* sysfs_release_region -- sysfs interface to release memory range.
@@ -284,6 +317,8 @@ static ssize_t store_release_region(stru
if (ret != 2)
return -EINVAL;
+ track_freed_range(start_addr, length);
+
/* Range-check - don't free any reserved memory that
* wasn't reserved for phyp-dump */
if (start_addr phyp_dump_info-init_reserve_start)
___
Linuxppc-dev mailing list
Linuxppc-dev@ozlabs.org
https://ozlabs.org/mailman/listinfo/linuxppc-dev
[PATCH 7/8] pseries: phyp dump: Tracking memory range freed.
This patch tracks the size freed. For now it does a simple
rudimentary calculation of the ranges freed. The idea is
to keep it simple at the external shell script level and
send in large chunks for now.
Signed-off-by: Manish Ahuja [EMAIL PROTECTED]
-
---
arch/powerpc/platforms/pseries/phyp_dump.c | 35 +
1 file changed, 35 insertions(+)
Index: 2.6.24-rc5/arch/powerpc/platforms/pseries/phyp_dump.c
===
--- 2.6.24-rc5.orig/arch/powerpc/platforms/pseries/phyp_dump.c 2008-02-12
06:13:17.0 -0600
+++ 2.6.24-rc5/arch/powerpc/platforms/pseries/phyp_dump.c 2008-02-12
06:13:21.0 -0600
@@ -259,6 +259,39 @@ void release_memory_range(unsigned long
}
}
+/**
+ * track_freed_range -- Counts the range being freed.
+ * Once the counter goes to zero, it re-registers dump for
+ * future use.
+ */
+static void
+track_freed_range(unsigned long addr, unsigned long length)
+{
+ static unsigned long scratch_area_size, reserved_area_size;
+
+ if (addr phyp_dump_info-init_reserve_start)
+ return;
+
+ if ((addr = phyp_dump_info-init_reserve_start)
+ (addr = phyp_dump_info-init_reserve_start +
+phyp_dump_info-init_reserve_size))
+ reserved_area_size += length;
+
+ if ((addr = phyp_dump_info-reserved_scratch_addr)
+ (addr = phyp_dump_info-reserved_scratch_addr +
+phyp_dump_info-reserved_scratch_size))
+ scratch_area_size += length;
+
+ if ((reserved_area_size == phyp_dump_info-init_reserve_size)
+ (scratch_area_size == phyp_dump_info-reserved_scratch_size)) {
+
+ invalidate_last_dump(phdr,
+ phyp_dump_info-reserved_scratch_addr);
+ register_dump_area (phdr,
+ phyp_dump_info-reserved_scratch_addr);
+ }
+}
+
/* - */
/**
* sysfs_release_region -- sysfs interface to release memory range.
@@ -282,6 +315,8 @@ ssize_t store_release_region(struct kset
if (ret != 2)
return -EINVAL;
+ track_freed_range(start_addr, length);
+
/* Range-check - don't free any reserved memory that
* wasn't reserved for phyp-dump */
if (start_addr phyp_dump_info-init_reserve_start)
___
Linuxppc-dev mailing list
Linuxppc-dev@ozlabs.org
https://ozlabs.org/mailman/listinfo/linuxppc-dev
[PATCH 7/8] pseries: phyp dump: Tracking memory range freed.
This patch tracks the size freed. For now it does a simple
rudimentary calculation of the ranges freed. The idea is
to keep it simple at the external shell script level and
send in large chunks for now.
Signed-off-by: Manish Ahuja [EMAIL PROTECTED]
-
---
arch/powerpc/platforms/pseries/phyp_dump.c | 35 +
1 file changed, 35 insertions(+)
Index: 2.6.24-rc5/arch/powerpc/platforms/pseries/phyp_dump.c
===
--- 2.6.24-rc5.orig/arch/powerpc/platforms/pseries/phyp_dump.c 2008-01-21
23:30:18.0 -0600
+++ 2.6.24-rc5/arch/powerpc/platforms/pseries/phyp_dump.c 2008-01-21
23:42:04.0 -0600
@@ -275,6 +275,39 @@ void release_memory_range(unsigned long
}
}
+/**
+ * track_freed_range -- Counts the range being freed.
+ * Once the counter goes to zero, it re-registers dump for
+ * future use.
+ */
+static void
+track_freed_range(unsigned long addr, unsigned long length)
+{
+ static unsigned long scratch_area_size, reserved_area_size;
+
+ if (addr phyp_dump_info-init_reserve_start)
+ return;
+
+ if ((addr = phyp_dump_info-init_reserve_start)
+ (addr = phyp_dump_info-init_reserve_start +
+phyp_dump_info-init_reserve_size))
+ reserved_area_size += length;
+
+ if ((addr = phyp_dump_info-reserved_scratch_addr)
+ (addr = phyp_dump_info-reserved_scratch_addr +
+phyp_dump_info-reserved_scratch_size))
+ scratch_area_size += length;
+
+ if ((reserved_area_size == phyp_dump_info-init_reserve_size)
+ (scratch_area_size == phyp_dump_info-reserved_scratch_size)) {
+
+ invalidate_last_dump(phdr,
+ phyp_dump_info-reserved_scratch_addr);
+ register_dump_area (phdr,
+ phyp_dump_info-reserved_scratch_addr);
+ }
+}
+
/* - */
/**
* sysfs_release_region -- sysfs interface to release memory range.
@@ -298,6 +331,8 @@ ssize_t store_release_region(struct kset
if (ret != 2)
return -EINVAL;
+ track_freed_range(start_addr, length);
+
/* Range-check - don't free any reserved memory that
* wasn't reserved for phyp-dump */
if (start_addr phyp_dump_info-init_reserve_start)
___
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Linuxppc-dev@ozlabs.org
https://ozlabs.org/mailman/listinfo/linuxppc-dev
