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- Remove unnecessary synchronization from sf_buf_init(). (There is only

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one active CPU when sf_buf_init() is performed.)
This commit is contained in:
Alan Cox 2003-11-16 23:40:06 +00:00
parent b0323ea3aa
commit 0ec3db3072
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=122821
7 changed files with 0 additions and 14 deletions
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2
sys/alpha/alpha/vm_machdep.c
View file

@ -395,14 +395,12 @@ sf_buf_init(void *arg)
int i;
mtx_init(&sf_freelist.sf_lock, "sf_bufs list lock", NULL, MTX_DEF);
mtx_lock(&sf_freelist.sf_lock);
SLIST_INIT(&sf_freelist.sf_head);
sf_bufs = malloc(nsfbufs * sizeof(struct sf_buf), M_TEMP,
M_NOWAIT | M_ZERO);
for (i = 0; i < nsfbufs; i++)
SLIST_INSERT_HEAD(&sf_freelist.sf_head, &sf_bufs[i], free_list);
sf_buf_alloc_want = 0;
mtx_unlock(&sf_freelist.sf_lock);
}
/*

2
sys/amd64/amd64/vm_machdep.c
View file

@ -375,14 +375,12 @@ sf_buf_init(void *arg)
int i;
mtx_init(&sf_freelist.sf_lock, "sf_bufs list lock", NULL, MTX_DEF);
mtx_lock(&sf_freelist.sf_lock);
SLIST_INIT(&sf_freelist.sf_head);
sf_bufs = malloc(nsfbufs * sizeof(struct sf_buf), M_TEMP,
M_NOWAIT | M_ZERO);
for (i = 0; i < nsfbufs; i++)
SLIST_INSERT_HEAD(&sf_freelist.sf_head, &sf_bufs[i], free_list);
sf_buf_alloc_want = 0;
mtx_unlock(&sf_freelist.sf_lock);
}
/*

2
sys/i386/i386/vm_machdep.c
View file

@ -576,7 +576,6 @@ sf_buf_init(void *arg)
int i;
mtx_init(&sf_freelist.sf_lock, "sf_bufs list lock", NULL, MTX_DEF);
mtx_lock(&sf_freelist.sf_lock);
SLIST_INIT(&sf_freelist.sf_head);
sf_base = kmem_alloc_nofault(kernel_map, nsfbufs * PAGE_SIZE);
sf_bufs = malloc(nsfbufs * sizeof(struct sf_buf), M_TEMP,
@ -586,7 +585,6 @@ sf_buf_init(void *arg)
SLIST_INSERT_HEAD(&sf_freelist.sf_head, &sf_bufs[i], free_list);
}
sf_buf_alloc_want = 0;
mtx_unlock(&sf_freelist.sf_lock);
}
/*

2
sys/ia64/ia64/vm_machdep.c
View file

@ -334,14 +334,12 @@ sf_buf_init(void *arg)
int i;
mtx_init(&sf_freelist.sf_lock, "sf_bufs list lock", NULL, MTX_DEF);
mtx_lock(&sf_freelist.sf_lock);
SLIST_INIT(&sf_freelist.sf_head);
sf_bufs = malloc(nsfbufs * sizeof(struct sf_buf), M_TEMP,
M_NOWAIT | M_ZERO);
for (i = 0; i < nsfbufs; i++)
SLIST_INSERT_HEAD(&sf_freelist.sf_head, sf_bufs+i, free_list);
sf_buf_alloc_want = 0;
mtx_unlock(&sf_freelist.sf_lock);
}
/*

2
sys/powerpc/aim/vm_machdep.c
View file

@ -246,7 +246,6 @@ sf_buf_init(void *arg)
int i;
mtx_init(&sf_freelist.sf_lock, "sf_bufs list lock", NULL, MTX_DEF);
mtx_lock(&sf_freelist.sf_lock);
SLIST_INIT(&sf_freelist.sf_head);
sf_base = kmem_alloc_nofault(kernel_map, nsfbufs * PAGE_SIZE);
sf_bufs = malloc(nsfbufs * sizeof(struct sf_buf), M_TEMP,
@ -256,7 +255,6 @@ sf_buf_init(void *arg)
SLIST_INSERT_HEAD(&sf_freelist.sf_head, &sf_bufs[i], free_list);
}
sf_buf_alloc_want = 0;
mtx_unlock(&sf_freelist.sf_lock);
}
/*

2
sys/powerpc/powerpc/vm_machdep.c
View file

@ -246,7 +246,6 @@ sf_buf_init(void *arg)
int i;
mtx_init(&sf_freelist.sf_lock, "sf_bufs list lock", NULL, MTX_DEF);
mtx_lock(&sf_freelist.sf_lock);
SLIST_INIT(&sf_freelist.sf_head);
sf_base = kmem_alloc_nofault(kernel_map, nsfbufs * PAGE_SIZE);
sf_bufs = malloc(nsfbufs * sizeof(struct sf_buf), M_TEMP,
@ -256,7 +255,6 @@ sf_buf_init(void *arg)
SLIST_INSERT_HEAD(&sf_freelist.sf_head, &sf_bufs[i], free_list);
}
sf_buf_alloc_want = 0;
mtx_unlock(&sf_freelist.sf_lock);
}
/*

2
sys/sparc64/sparc64/vm_machdep.c
View file

@ -373,7 +373,6 @@ sf_buf_init(void *arg)
int i;
mtx_init(&sf_freelist.sf_lock, "sf_bufs list lock", NULL, MTX_DEF);
mtx_lock(&sf_freelist.sf_lock);
SLIST_INIT(&sf_freelist.sf_head);
sf_base = kmem_alloc_nofault(kernel_map, nsfbufs * PAGE_SIZE);
sf_bufs = malloc(nsfbufs * sizeof(struct sf_buf), M_TEMP,
@ -383,7 +382,6 @@ sf_buf_init(void *arg)
SLIST_INSERT_HEAD(&sf_freelist.sf_head, &sf_bufs[i], free_list);
}
sf_buf_alloc_want = 0;
mtx_unlock(&sf_freelist.sf_lock);
}
/*