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[Qemu-devel] [PATCH 18/39] bitmap: Add bitmap_zero_extend operation
From: |
Juan Quintela |
Subject: |
[Qemu-devel] [PATCH 18/39] bitmap: Add bitmap_zero_extend operation |
Date: |
Wed, 6 Nov 2013 14:04:27 +0100 |
Signed-off-by: Juan Quintela <address@hidden>
---
include/qemu/bitmap.h | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/include/qemu/bitmap.h b/include/qemu/bitmap.h
index 308bbb7..53f5f1f 100644
--- a/include/qemu/bitmap.h
+++ b/include/qemu/bitmap.h
@@ -219,4 +219,13 @@ unsigned long bitmap_find_next_zero_area(unsigned long
*map,
unsigned int nr,
unsigned long align_mask);
+static inline unsigned long *bitmap_zero_extend(unsigned long *old,
+ int old_nbits, int new_nbits)
+{
+ int new_len = BITS_TO_LONGS(new_nbits) * sizeof(unsigned long);
+ unsigned long *new = g_realloc(old, new_len);
+ bitmap_clear(new, old_nbits, new_nbits - old_nbits);
+ return new;
+}
+
#endif /* BITMAP_H */
--
1.8.3.1
- Re: [Qemu-devel] [PATCH 11/39] memory: cpu_physical_memory_set_dirty_range() allways dirty all flags, (continued)
- [Qemu-devel] [PATCH 09/39] memory: all users of cpu_physical_memory_get_dirty used only one flag, Juan Quintela, 2013/11/06
- [Qemu-devel] [PATCH 12/39] memory: cpu_physical_memory_mask_dirty_range() always clear a single flag, Juan Quintela, 2013/11/06
- [Qemu-devel] [PATCH 13/39] memory: use DIRTY_MEMORY_* instead of *_DIRTY_FLAG, Juan Quintela, 2013/11/06
- [Qemu-devel] [PATCH 14/39] memory: use bit 2 for migration, Juan Quintela, 2013/11/06
- [Qemu-devel] [PATCH 15/39] memory: make sure that client is always inside range, Juan Quintela, 2013/11/06
- [Qemu-devel] [PATCH 16/39] memory: only resize dirty bitmap when memory size increases, Juan Quintela, 2013/11/06
- [Qemu-devel] [PATCH 17/39] memory: cpu_physical_memory_clear_dirty_flag() result is never used, Juan Quintela, 2013/11/06
- [Qemu-devel] [PATCH 18/39] bitmap: Add bitmap_zero_extend operation,
Juan Quintela <=
- [Qemu-devel] [PATCH 19/39] memory: split dirty bitmap into three, Juan Quintela, 2013/11/06
- [Qemu-devel] [PATCH 20/39] memory: unfold cpu_physical_memory_clear_dirty_flag() in its only user, Juan Quintela, 2013/11/06
- [Qemu-devel] [PATCH 21/39] memory: unfold cpu_physical_memory_set_dirty() in its only user, Juan Quintela, 2013/11/06
- [Qemu-devel] [PATCH 22/39] memory: unfold cpu_physical_memory_set_dirty_flag(), Juan Quintela, 2013/11/06
- [Qemu-devel] [PATCH 23/39] memory: make cpu_physical_memory_get_dirty() the main function, Juan Quintela, 2013/11/06
- [Qemu-devel] [PATCH 24/39] memory: cpu_physical_memory_get_dirty() is used as returning a bool, Juan Quintela, 2013/11/06
- [Qemu-devel] [PATCH 26/39] memory: use find_next_bit() to find dirty bits, Juan Quintela, 2013/11/06
- [Qemu-devel] [PATCH 25/39] memory: s/mask/clear/ cpu_physical_memory_mask_dirty_range, Juan Quintela, 2013/11/06