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zfs_map_page/zfs_unmap_page: do not use sched_pin() and SFB_CPUPRIVATE

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zfs_map_page/zfs_unmap_page are mostly called around potential I/O paths
and it seems to be a not very good idea to do cpu pinning there.

Suggested by:	kib
MFC after:	2 weeks
This commit is contained in:
Andriy Gapon 2010-09-21 05:58:45 +00:00
parent ff5e15a487
commit 68653c3bd6
1 changed files with 1 additions and 3 deletions
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4
sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c
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@ -358,8 +358,7 @@ static caddr_t
zfs_map_page(vm_page_t pp, struct sf_buf **sfp)
{
sched_pin();
*sfp = sf_buf_alloc(pp, SFB_CPUPRIVATE);
*sfp = sf_buf_alloc(pp, 0);
return ((caddr_t)sf_buf_kva(*sfp));
}
@ -368,7 +367,6 @@ zfs_unmap_page(struct sf_buf *sf)
{
sf_buf_free(sf);
sched_unpin();
}