The patch titled
Subject: mm/readahead: add DEFINE_READAHEAD
has been added to the -mm tree. Its filename is
mm-readahead-add-define_readahead.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/mm-readahead-add-define_readahead.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/mm-readahead-add-define_readahead.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: "Matthew Wilcox (Oracle)" <willy@xxxxxxxxxxxxx>
Subject: mm/readahead: add DEFINE_READAHEAD
Patch series "Readahead patches for 5.9/5.10".
These are infrastructure for both the THP patchset and for the fscache
rewrite,
This patch (of 8):
Allow for a more concise definition of a struct readahead_control.
Link: https://lkml.kernel.org/r/20200903140844.14194-1-willy@xxxxxxxxxxxxx
Link: https://lkml.kernel.org/r/20200903140844.14194-3-willy@xxxxxxxxxxxxx
Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Cc: Eric Biggers <ebiggers@xxxxxxxxxx>
Cc: David Howells <dhowells@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/pagemap.h | 7 +++++++
mm/readahead.c | 6 +-----
2 files changed, 8 insertions(+), 5 deletions(-)
--- a/include/linux/pagemap.h~mm-readahead-add-define_readahead
+++ a/include/linux/pagemap.h
@@ -749,6 +749,13 @@ struct readahead_control {
unsigned int _batch_count;
};
+#define DEFINE_READAHEAD(rac, f, m, i) \
+ struct readahead_control rac = { \
+ .file = f, \
+ .mapping = m, \
+ ._index = i, \
+ }
+
/**
* readahead_page - Get the next page to read.
* @rac: The current readahead request.
--- a/mm/readahead.c~mm-readahead-add-define_readahead
+++ a/mm/readahead.c
@@ -179,11 +179,7 @@ void page_cache_readahead_unbounded(stru
{
LIST_HEAD(page_pool);
gfp_t gfp_mask = readahead_gfp_mask(mapping);
- struct readahead_control rac = {
- .mapping = mapping,
- .file = file,
- ._index = index,
- };
+ DEFINE_READAHEAD(rac, file, mapping, index);
unsigned long i;
/*
_
Patches currently in -mm which might be from willy@xxxxxxxxxxxxx are
mm-debug-do-not-dereference-i_ino-blindly.patch
mm-account-pmd-tables-like-pte-tables.patch
mm-move-pagedoublemap-bit.patch
mm-simplify-pagedoublemap-with-pf_second-policy.patch
xarray-add-xa_get_order.patch
xarray-add-xas_split.patch
mm-filemap-fix-storing-to-a-thp-shadow-entry.patch
mm-readahead-add-define_readahead.patch
mm-readahead-make-page_cache_ra_unbounded-take-a-readahead_control.patch
mm-readahead-make-do_page_cache_ra-take-a-readahead_control.patch
mm-readahead-add-page_cache_sync_ra-and-page_cache_async_ra.patch
harden-autofs-ioctl-table.patch
