Gitweb: http://git.kernel.org/linus/95f8e302c04c0b0c6de35ab399a5551605eeb006
Commit: 95f8e302c04c0b0c6de35ab399a5551605eeb006
Parent: d2859751cd0bf586941ffa7308635a293f943c17
Author: Nick Piggin <npiggin@suse.de>
AuthorDate: Tue Jan 6 14:43:09 2009 +1100
Committer: Lachlan McIlroy <lachlan@redback.melbourne.sgi.com>
CommitDate: Tue Jan 6 14:43:09 2009 +1100
[XFS] use scalable vmap API
Implement XFS's large buffer support with the new vmap APIs. See the vmap
rewrite (db64fe02) for some numbers. The biggest improvement that comes from
using the new APIs is avoiding the global KVA allocation lock on every call.
Signed-off-by: Nick Piggin <npiggin@suse.de>
Reviewed-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
---
fs/xfs/linux-2.6/xfs_buf.c | 6 +++---
1 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/fs/xfs/linux-2.6/xfs_buf.c b/fs/xfs/linux-2.6/xfs_buf.c
index 0b2177a..d71dc44 100644
--- a/fs/xfs/linux-2.6/xfs_buf.c
+++ b/fs/xfs/linux-2.6/xfs_buf.c
@@ -264,7 +264,7 @@ xfs_buf_free(
uint i;
if ((bp->b_flags & XBF_MAPPED) && (bp->b_page_count > 1))
- vunmap(bp->b_addr - bp->b_offset);
+ vm_unmap_ram(bp->b_addr - bp->b_offset, bp->b_page_count);
for (i = 0; i < bp->b_page_count; i++) {
struct page *page = bp->b_pages[i];
@@ -386,8 +386,8 @@ _xfs_buf_map_pages(
bp->b_addr = page_address(bp->b_pages[0]) + bp->b_offset;
bp->b_flags |= XBF_MAPPED;
} else if (flags & XBF_MAPPED) {
- bp->b_addr = vmap(bp->b_pages, bp->b_page_count,
- VM_MAP, PAGE_KERNEL);
+ bp->b_addr = vm_map_ram(bp->b_pages, bp->b_page_count,
+ -1, PAGE_KERNEL);
if (unlikely(bp->b_addr == NULL))
return -ENOMEM;
bp->b_addr += bp->b_offset;
--
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