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- Take advantage of the swap pager locking: Eliminate the use of Giant

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from vm_object_madvise().
 - Remove excessive blank lines from vm_object_madvise().
This commit is contained in:
Alan Cox 2003-10-31 18:32:03 +00:00
parent 0a91356606
commit dc6279b887
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=121815
1 changed files with 0 additions and 9 deletions
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9
sys/vm/vm_object.c
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@ -977,11 +977,7 @@ vm_object_madvise(vm_object_t object, vm_pindex_t pindex, int count, int advise)
if (object == NULL)
return;
mtx_lock(&Giant);
end = pindex + count;
/*
* Locate and adjust resident pages
*/
@ -1002,16 +998,13 @@ vm_object_madvise(vm_object_t object, vm_pindex_t pindex, int count, int advise)
goto unlock_tobject;
}
}
m = vm_page_lookup(tobject, tpindex);
if (m == NULL) {
/*
* There may be swap even if there is no backing page
*/
if (advise == MADV_FREE && tobject->type == OBJT_SWAP)
swap_pager_freespace(tobject, tpindex, 1);
/*
* next object
*/
@ -1024,7 +1017,6 @@ vm_object_madvise(vm_object_t object, vm_pindex_t pindex, int count, int advise)
tpindex += OFF_TO_IDX(tobject->backing_object_offset);
goto shadowlookup;
}
/*
* If the page is busy or not in a normal active state,
* we skip it. If the page is not managed there are no
@ -1074,7 +1066,6 @@ vm_object_madvise(vm_object_t object, vm_pindex_t pindex, int count, int advise)
unlock_tobject:
VM_OBJECT_UNLOCK(tobject);
}
mtx_unlock(&Giant);
}
/*