Messages in this thread Patch in this message | | | From | Peter Zijlstra <> | Date | Fri, 25 Aug 2006 17:38:01 +0200 | Subject | [PATCH 5/6] nfs: Add comment on PG_private use of NFS |
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Add a comment explaining the use of PG_private in the NFS client.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> --- fs/nfs/write.c | 5 +++++ 1 file changed, 5 insertions(+)
Index: linux-2.6/fs/nfs/write.c =================================================================== --- linux-2.6.orig/fs/nfs/write.c +++ linux-2.6/fs/nfs/write.c @@ -424,6 +424,11 @@ static int nfs_inode_add_request(struct if (nfs_have_delegation(inode, FMODE_WRITE)) nfsi->change_attr++; } + /* + * The PG_private bit is unfortunately needed if we want to fix the + * hole in the mmap semantics. If we do not set it, then the VM will + * fail to call the "releasepage" address ops. + */ SetPagePrivate(req->wb_page); nfsi->npages++; atomic_inc(&req->wb_count); - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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