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| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2006-07-05 13:17:12 -0400 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2006-07-05 13:17:12 -0400 |
| commit | bce3481c91801665e17f8daf59ede946129f3d3f (patch) | |
| tree | b5f7e14f8ded7ecfeb5c31a47d5360651060f49d /net/sunrpc | |
| parent | 83715ad54fad5a7ed330110f83e31ae92630e9d9 (diff) | |
| download | linux-3.10-bce3481c91801665e17f8daf59ede946129f3d3f.tar.gz linux-3.10-bce3481c91801665e17f8daf59ede946129f3d3f.tar.bz2 linux-3.10-bce3481c91801665e17f8daf59ede946129f3d3f.zip | |
This fixes a panic doing the first READDIR or READDIRPLUS call when:
* the client is ia64 or any platform that actually implements
flush_dcache_page(), and
* the server returns fsinfo.dtpref >= client's PAGE_SIZE, and
* the server does *not* return post-op attributes for the directory
in the READDIR reply.
Problem diagnosed by Greg Banks <gnb@melbourne.sgi.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'net/sunrpc')
| -rw-r--r-- | net/sunrpc/xdr.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/net/sunrpc/xdr.c b/net/sunrpc/xdr.c index 49174f0d0a3..6ac45103a27 100644 --- a/net/sunrpc/xdr.c +++ b/net/sunrpc/xdr.c @@ -191,7 +191,6 @@ _shift_data_right_pages(struct page **pages, size_t pgto_base, do { /* Are any pointers crossing a page boundary? */ if (pgto_base == 0) { - flush_dcache_page(*pgto); pgto_base = PAGE_CACHE_SIZE; pgto--; } @@ -211,11 +210,11 @@ _shift_data_right_pages(struct page **pages, size_t pgto_base, vto = kmap_atomic(*pgto, KM_USER0); vfrom = kmap_atomic(*pgfrom, KM_USER1); memmove(vto + pgto_base, vfrom + pgfrom_base, copy); + flush_dcache_page(*pgto); kunmap_atomic(vfrom, KM_USER1); kunmap_atomic(vto, KM_USER0); } while ((len -= copy) != 0); - flush_dcache_page(*pgto); } /* |