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| author | Mianhan Liu <liumh1@shanghaitech.edu.cn> | 2021-11-05 13:45:21 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-11-06 13:30:43 -0700 |
| commit | a1554c002699cbc9ced2e9f44f9c1357181bead3 (patch) | |
| tree | 67f389d0009f4bbaedce3cc022c41424e2b6f6fe /net/ipv4 | |
| parent | 53944f171a89dff4e2a3d76f42e6eedb551bb861 (diff) | |
| download | linux-stable-a1554c002699cbc9ced2e9f44f9c1357181bead3.tar.gz linux-stable-a1554c002699cbc9ced2e9f44f9c1357181bead3.tar.bz2 linux-stable-a1554c002699cbc9ced2e9f44f9c1357181bead3.zip | |
include/linux/mm.h: move nr_free_buffer_pages from swap.h to mm.h
nr_free_buffer_pages could be exposed through mm.h instead of swap.h.
The advantage of this change is that it can reduce the obsolete
includes. For example, net/ipv4/tcp.c wouldn't need swap.h any more
since it has already included mm.h. Similarly, after checking all the
other files, it comes that tcp.c, udp.c meter.c ,... follow the same
rule, so these files can have swap.h removed too.
Moreover, after preprocessing all the files that use
nr_free_buffer_pages, it turns out that those files have already
included mm.h.Thus, we can move nr_free_buffer_pages from swap.h to mm.h
safely. This change will not affect the compilation of other files.
Link: https://lkml.kernel.org/r/20210912133640.1624-1-liumh1@shanghaitech.edu.cn
Signed-off-by: Mianhan Liu <liumh1@shanghaitech.edu.cn>
Cc: Jakub Kicinski <kuba@kernel.org>
CC: Ulf Hansson <ulf.hansson@linaro.org>
Cc: "David S . Miller" <davem@davemloft.net>
Cc: Simon Horman <horms@verge.net.au>
Cc: Pravin B Shelar <pshelar@ovn.org>
Cc: Vlad Yasevich <vyasevich@gmail.com>
Cc: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'net/ipv4')
| -rw-r--r-- | net/ipv4/tcp.c | 1 | ||||
| -rw-r--r-- | net/ipv4/udp.c | 1 |
2 files changed, 0 insertions, 2 deletions
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index f5c336f8b0c8..c5e07a2c6c52 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -260,7 +260,6 @@ #include <linux/random.h> #include <linux/memblock.h> #include <linux/highmem.h> -#include <linux/swap.h> #include <linux/cache.h> #include <linux/err.h> #include <linux/time.h> diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index 2fffcf2b54f3..319dd7bbfe33 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -78,7 +78,6 @@ #include <asm/ioctls.h> #include <linux/memblock.h> #include <linux/highmem.h> -#include <linux/swap.h> #include <linux/types.h> #include <linux/fcntl.h> #include <linux/module.h> |