[PATCH 2/2] mm: Indicate pfmemalloc pages in compound_head

loc(). Since page_pool doesn't want to set its magic value on pages which are pfmemalloc, we can use bit 1 of compound_head to indicate that the page came from the memory reserves. Signed-off-by: Matthew Wilcox (Oracle) --- include/linux/mm.h | 12 +++- include/linux/mm_type

[PATCH 1/2] mm: Fix struct page layout on 32-bit systems

d a racing get_user_pages_fast() could dereference a bogus compound_head(). Fixes: c25fff7171be ("mm: add dma_addr_t to struct page") Signed-off-by: Matthew Wilcox (Oracle) --- include/linux/mm_types.h | 4 ++-- include/net/page_pool.h | 12 +++- net/core/page_pool.c | 12 +

[PATCH 0/2] Change struct page layout for page_pool

s new functionality. It is much less urgent. I'd really like to see Mel & Michal's thoughts on it. I have only compile-tested these patches. Matthew Wilcox (Oracle) (2): mm: Fix struct page layout on 32-bit systems mm: Indicate pfmemalloc pages in compound_head include/li

[PATCH 1/1] mm: Fix struct page layout on 32-bit systems

be cleared on free. To avoid this, insert three words of padding and use the same bits as ->index and ->private, neither of which have to be cleared on free. Fixes: c25fff7171be ("mm: add dma_addr_t to struct page") Signed-off-by: Matthew Wilco

[PATCH 0/1] Fix struct page layout on 32-bit systems

I'd really appreciate people testing this, particularly on arm32/mips32/ppc32 systems with a 64-bit dma_addr_t. Matthew Wilcox (Oracle) (1): mm: Fix struct page layout on 32-bit systems include/linux/mm_types.h | 38 ++ 1 file changed, 26 insertions(+

[PATCH] qrtr: Convert qrtr_ports from IDR to XArray

The XArray interface is easier for this driver to use. Also fixes a bug reported by the improper use of GFP_ATOMIC. Signed-off-by: Matthew Wilcox (Oracle) --- net/qrtr/qrtr.c | 42 ++ 1 file changed, 14 insertions(+), 28 deletions(-) diff --git a/net

[PATCH] af_unix: Allow Unix sockets to raise SIGURG

-by: Rao Shoaib Signed-off-by: Matthew Wilcox (Oracle) --- net/unix/af_unix.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c index 41c3303c3357..849dff688c2c 100644 --- a/net/unix/af_unix.c +++ b/net/unix/af_unix.c @@ -1837,8

[PATCH] page_frag: Recover from memory pressure

enkatsubra Cc: Manjunath Patil Cc: Joe Jin Cc: SRINIVAS Cc: sta...@vger.kernel.org Fixes: 79930f5892e ("net: do not deplete pfmemalloc reserve") Signed-off-by: Matthew Wilcox (Oracle) --- mm/page_alloc.c | 4 1 file changed, 4 insertions(+) diff --git a/mm/page_alloc.c b/m