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author | NeilBrown <neilb@suse.de> | 2022-05-10 04:20:47 +0300 |
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committer | akpm <akpm@linux-foundation.org> | 2022-05-10 04:20:47 +0300 |
commit | 014bb1de4fc17d54907d54418126a9a9736f4aff (patch) | |
tree | 109d318394d0522baf3018899702e8b3fb17de5a /mm/huge_memory.c | |
parent | 17de1e559cf1eb01d5d90afd3064d5a280060f6f (diff) | |
download | linux-014bb1de4fc17d54907d54418126a9a9736f4aff.tar.xz |
mm: create new mm/swap.h header file
Patch series "MM changes to improve swap-over-NFS support".
Assorted improvements for swap-via-filesystem.
This is a resend of these patches, rebased on current HEAD. The only
substantial changes is that swap_dirty_folio has replaced
swap_set_page_dirty.
Currently swap-via-fs (SWP_FS_OPS) doesn't work for any filesystem. It
has previously worked for NFS but that broke a few releases back. This
series changes to use a new ->swap_rw rather than ->readpage and
->direct_IO. It also makes other improvements.
There is a companion series already in linux-next which fixes various
issues with NFS. Once both series land, a final patch is needed which
changes NFS over to use ->swap_rw.
This patch (of 10):
Many functions declared in include/linux/swap.h are only used within mm/
Create a new "mm/swap.h" and move some of these declarations there.
Remove the redundant 'extern' from the function declarations.
[akpm@linux-foundation.org: mm/memory-failure.c needs mm/swap.h]
Link: https://lkml.kernel.org/r/164859751830.29473.5309689752169286816.stgit@noble.brown
Link: https://lkml.kernel.org/r/164859778120.29473.11725907882296224053.stgit@noble.brown
Signed-off-by: NeilBrown <neilb@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Tested-by: David Howells <dhowells@redhat.com>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Trond Myklebust <trond.myklebust@hammerspace.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Miaohe Lin <linmiaohe@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/huge_memory.c')
-rw-r--r-- | mm/huge_memory.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/mm/huge_memory.c b/mm/huge_memory.c index a2f44d8d3d47..86eae6834db7 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -39,6 +39,7 @@ #include <asm/tlb.h> #include <asm/pgalloc.h> #include "internal.h" +#include "swap.h" #define CREATE_TRACE_POINTS #include <trace/events/thp.h> |