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exec: Eliminate qemu_ram_free_from_ptr()

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Replace qemu_ram_free_from_ptr() with qemu_ram_free().

The only difference between qemu_ram_free_from_ptr() and
qemu_ram_free() is that g_free_rcu() is used instead of
call_rcu(reclaim_ramblock). We can safely replace it because:

* RAM blocks allocated by qemu_ram_alloc_from_ptr() always have
RAM_PREALLOC set;
* reclaim_ramblock(block) will do nothing except g_free(block)
if RAM_PREALLOC is set at block->flags.

Backports commit a29ac16632aec6065c72985b9f7eeb1ca6fbef4a from qemu
This commit is contained in:
Eduardo Habkost 2018-02-17 19:37:26 -05:00 committed by Lioncash
parent 587c9f0570
commit 26791ea61b
No known key found for this signature in database
GPG Key ID: 4E3C3CC1031BA9C7
17 changed files with 1 additions and 31 deletions
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1
qemu/aarch64.h
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@ -2442,7 +2442,6 @@
#define qemu_ram_block_from_host qemu_ram_block_from_host_aarch64
#define qemu_ram_foreach_block qemu_ram_foreach_block_aarch64
#define qemu_ram_free qemu_ram_free_aarch64
#define qemu_ram_free_from_ptr qemu_ram_free_from_ptr_aarch64
#define qemu_ram_get_idstr qemu_ram_get_idstr_aarch64
#define qemu_ram_ptr_length qemu_ram_ptr_length_aarch64
#define qemu_ram_remap qemu_ram_remap_aarch64

1
qemu/aarch64eb.h
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@ -2442,7 +2442,6 @@
#define qemu_ram_block_from_host qemu_ram_block_from_host_aarch64eb
#define qemu_ram_foreach_block qemu_ram_foreach_block_aarch64eb
#define qemu_ram_free qemu_ram_free_aarch64eb
#define qemu_ram_free_from_ptr qemu_ram_free_from_ptr_aarch64eb
#define qemu_ram_get_idstr qemu_ram_get_idstr_aarch64eb
#define qemu_ram_ptr_length qemu_ram_ptr_length_aarch64eb
#define qemu_ram_remap qemu_ram_remap_aarch64eb

1
qemu/arm.h
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@ -2442,7 +2442,6 @@
#define qemu_ram_block_from_host qemu_ram_block_from_host_arm
#define qemu_ram_foreach_block qemu_ram_foreach_block_arm
#define qemu_ram_free qemu_ram_free_arm
#define qemu_ram_free_from_ptr qemu_ram_free_from_ptr_arm
#define qemu_ram_get_idstr qemu_ram_get_idstr_arm
#define qemu_ram_ptr_length qemu_ram_ptr_length_arm
#define qemu_ram_remap qemu_ram_remap_arm

1
qemu/armeb.h
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@ -2442,7 +2442,6 @@
#define qemu_ram_block_from_host qemu_ram_block_from_host_armeb
#define qemu_ram_foreach_block qemu_ram_foreach_block_armeb
#define qemu_ram_free qemu_ram_free_armeb
#define qemu_ram_free_from_ptr qemu_ram_free_from_ptr_armeb
#define qemu_ram_get_idstr qemu_ram_get_idstr_armeb
#define qemu_ram_ptr_length qemu_ram_ptr_length_armeb
#define qemu_ram_remap qemu_ram_remap_armeb

15
qemu/exec.c
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@ -1169,21 +1169,6 @@ ram_addr_t qemu_ram_alloc_resizeable(ram_addr_t size, ram_addr_t maxsz,
return qemu_ram_alloc_internal(size, maxsz, resized, NULL, true, mr, errp);
}
void qemu_ram_free_from_ptr(struct uc_struct *uc, ram_addr_t addr)
{
RAMBlock *block;
QTAILQ_FOREACH(block, &uc->ram_list.blocks, next) {
if (addr == block->offset) {
QTAILQ_REMOVE(&uc->ram_list.blocks, block, next);
uc->ram_list.mru_block = NULL;
uc->ram_list.version++;
g_free(block);
break;
}
}
}
void qemu_ram_free(struct uc_struct *uc, ram_addr_t addr)
{
RAMBlock *block;

1
qemu/header_gen.py
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@ -2448,7 +2448,6 @@ symbols = (
'qemu_ram_block_from_host',
'qemu_ram_foreach_block',
'qemu_ram_free',
'qemu_ram_free_from_ptr',
'qemu_ram_get_idstr',
'qemu_ram_ptr_length',
'qemu_ram_remap',

1
qemu/include/exec/ram_addr.h
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@ -35,7 +35,6 @@ int qemu_get_ram_fd(struct uc_struct *uc, ram_addr_t addr);
void *qemu_get_ram_block_host_ptr(struct uc_struct *uc, ram_addr_t addr);
void *qemu_get_ram_ptr(struct uc_struct *uc, ram_addr_t addr);
void qemu_ram_free(struct uc_struct *c, ram_addr_t addr);
void qemu_ram_free_from_ptr(struct uc_struct *uc, ram_addr_t addr);
int qemu_ram_resize(struct uc_struct *c, ram_addr_t base, ram_addr_t newsize, Error **errp);

1
qemu/m68k.h
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@ -2442,7 +2442,6 @@
#define qemu_ram_block_from_host qemu_ram_block_from_host_m68k
#define qemu_ram_foreach_block qemu_ram_foreach_block_m68k
#define qemu_ram_free qemu_ram_free_m68k
#define qemu_ram_free_from_ptr qemu_ram_free_from_ptr_m68k
#define qemu_ram_get_idstr qemu_ram_get_idstr_m68k
#define qemu_ram_ptr_length qemu_ram_ptr_length_m68k
#define qemu_ram_remap qemu_ram_remap_m68k

2
qemu/memory.c
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@ -824,7 +824,7 @@ static void memory_region_destructor_alias(MemoryRegion *mr)
static void memory_region_destructor_ram_from_ptr(MemoryRegion *mr)
{
qemu_ram_free_from_ptr(mr->uc, mr->ram_addr);
qemu_ram_free(mr->uc, mr->ram_addr);
}
static bool memory_region_need_escape(char c)

1
qemu/mips.h
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@ -2442,7 +2442,6 @@
#define qemu_ram_block_from_host qemu_ram_block_from_host_mips
#define qemu_ram_foreach_block qemu_ram_foreach_block_mips
#define qemu_ram_free qemu_ram_free_mips
#define qemu_ram_free_from_ptr qemu_ram_free_from_ptr_mips
#define qemu_ram_get_idstr qemu_ram_get_idstr_mips
#define qemu_ram_ptr_length qemu_ram_ptr_length_mips
#define qemu_ram_remap qemu_ram_remap_mips

1
qemu/mips64.h
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@ -2442,7 +2442,6 @@
#define qemu_ram_block_from_host qemu_ram_block_from_host_mips64
#define qemu_ram_foreach_block qemu_ram_foreach_block_mips64
#define qemu_ram_free qemu_ram_free_mips64
#define qemu_ram_free_from_ptr qemu_ram_free_from_ptr_mips64
#define qemu_ram_get_idstr qemu_ram_get_idstr_mips64
#define qemu_ram_ptr_length qemu_ram_ptr_length_mips64
#define qemu_ram_remap qemu_ram_remap_mips64

1
qemu/mips64el.h
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@ -2442,7 +2442,6 @@
#define qemu_ram_block_from_host qemu_ram_block_from_host_mips64el
#define qemu_ram_foreach_block qemu_ram_foreach_block_mips64el
#define qemu_ram_free qemu_ram_free_mips64el
#define qemu_ram_free_from_ptr qemu_ram_free_from_ptr_mips64el
#define qemu_ram_get_idstr qemu_ram_get_idstr_mips64el
#define qemu_ram_ptr_length qemu_ram_ptr_length_mips64el
#define qemu_ram_remap qemu_ram_remap_mips64el

1
qemu/mipsel.h
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@ -2442,7 +2442,6 @@
#define qemu_ram_block_from_host qemu_ram_block_from_host_mipsel
#define qemu_ram_foreach_block qemu_ram_foreach_block_mipsel
#define qemu_ram_free qemu_ram_free_mipsel
#define qemu_ram_free_from_ptr qemu_ram_free_from_ptr_mipsel
#define qemu_ram_get_idstr qemu_ram_get_idstr_mipsel
#define qemu_ram_ptr_length qemu_ram_ptr_length_mipsel
#define qemu_ram_remap qemu_ram_remap_mipsel

1
qemu/powerpc.h
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@ -2442,7 +2442,6 @@
#define qemu_ram_block_from_host qemu_ram_block_from_host_powerpc
#define qemu_ram_foreach_block qemu_ram_foreach_block_powerpc
#define qemu_ram_free qemu_ram_free_powerpc
#define qemu_ram_free_from_ptr qemu_ram_free_from_ptr_powerpc
#define qemu_ram_get_idstr qemu_ram_get_idstr_powerpc
#define qemu_ram_ptr_length qemu_ram_ptr_length_powerpc
#define qemu_ram_remap qemu_ram_remap_powerpc

1
qemu/sparc.h
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@ -2442,7 +2442,6 @@
#define qemu_ram_block_from_host qemu_ram_block_from_host_sparc
#define qemu_ram_foreach_block qemu_ram_foreach_block_sparc
#define qemu_ram_free qemu_ram_free_sparc
#define qemu_ram_free_from_ptr qemu_ram_free_from_ptr_sparc
#define qemu_ram_get_idstr qemu_ram_get_idstr_sparc
#define qemu_ram_ptr_length qemu_ram_ptr_length_sparc
#define qemu_ram_remap qemu_ram_remap_sparc

1
qemu/sparc64.h
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@ -2442,7 +2442,6 @@
#define qemu_ram_block_from_host qemu_ram_block_from_host_sparc64
#define qemu_ram_foreach_block qemu_ram_foreach_block_sparc64
#define qemu_ram_free qemu_ram_free_sparc64
#define qemu_ram_free_from_ptr qemu_ram_free_from_ptr_sparc64
#define qemu_ram_get_idstr qemu_ram_get_idstr_sparc64
#define qemu_ram_ptr_length qemu_ram_ptr_length_sparc64
#define qemu_ram_remap qemu_ram_remap_sparc64

1
qemu/x86_64.h
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@ -2442,7 +2442,6 @@
#define qemu_ram_block_from_host qemu_ram_block_from_host_x86_64
#define qemu_ram_foreach_block qemu_ram_foreach_block_x86_64
#define qemu_ram_free qemu_ram_free_x86_64
#define qemu_ram_free_from_ptr qemu_ram_free_from_ptr_x86_64
#define qemu_ram_get_idstr qemu_ram_get_idstr_x86_64
#define qemu_ram_ptr_length qemu_ram_ptr_length_x86_64
#define qemu_ram_remap qemu_ram_remap_x86_64