mirror of
https://github.com/schoebel/mars
synced 2024-12-23 07:03:09 +00:00
199 lines
6.0 KiB
Diff
199 lines
6.0 KiB
Diff
From 1be1b148afba0f905afcb13e0ee18e1333eac9d1 Mon Sep 17 00:00:00 2001
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From: Thomas Schoebel-Theuer <tst@1und1.de>
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Date: Thu, 30 Jan 2020 13:41:29 +0100
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Subject: [PATCH] mars: minimum pre-patch for mars
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Mostly introduces some EXPORT_SYMBOL().
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Should have almost no impact onto the kernel.
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---
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fs/aio.c | 6 ++++++
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fs/namei.c | 5 +++++
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fs/open.c | 2 ++
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fs/utimes.c | 2 ++
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include/linux/aio.h | 1 +
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include/uapi/linux/major.h | 1 +
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mm/page_alloc.c | 2 ++
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7 files changed, 19 insertions(+)
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diff --git a/fs/aio.c b/fs/aio.c
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index a2de58f77338..c9beeabfceef 100644
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--- a/fs/aio.c
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+++ b/fs/aio.c
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@@ -194,6 +194,7 @@ struct aio_kiocb {
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static DEFINE_SPINLOCK(aio_nr_lock);
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unsigned long aio_nr; /* current system wide number of aio requests */
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unsigned long aio_max_nr = 0x10000; /* system wide maximum number of aio requests */
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+EXPORT_SYMBOL_GPL(aio_max_nr);
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/*----end sysctl variables---*/
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static struct kmem_cache *kiocb_cachep;
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@@ -1397,6 +1398,7 @@ SYSCALL_DEFINE2(io_setup, unsigned, nr_events, aio_context_t __user *, ctxp)
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out:
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return ret;
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}
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+EXPORT_SYMBOL(sys_io_setup);
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#ifdef CONFIG_COMPAT
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COMPAT_SYSCALL_DEFINE2(io_setup, unsigned, nr_events, u32 __user *, ctx32p)
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@@ -1466,6 +1468,7 @@ SYSCALL_DEFINE1(io_destroy, aio_context_t, ctx)
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pr_debug("EINVAL: invalid context id\n");
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return -EINVAL;
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}
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+EXPORT_SYMBOL(sys_io_destroy);
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static int aio_setup_rw(int rw, struct iocb *iocb, struct iovec **iovec,
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bool vectored, bool compat, struct iov_iter *iter)
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@@ -1715,6 +1718,7 @@ static long do_io_submit(aio_context_t ctx_id, long nr,
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percpu_ref_put(&ctx->users);
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return i ? i : ret;
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}
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+EXPORT_SYMBOL(sys_io_submit);
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/* sys_io_submit:
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* Queue the nr iocbs pointed to by iocbpp for processing. Returns
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@@ -1842,6 +1846,7 @@ SYSCALL_DEFINE3(io_cancel, aio_context_t, ctx_id, struct iocb __user *, iocb,
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return ret;
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}
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+EXPORT_SYMBOL(sys_io_cancel);
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/* io_getevents:
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* Attempts to read at least min_nr events and up to nr events from
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@@ -1871,6 +1876,7 @@ SYSCALL_DEFINE5(io_getevents, aio_context_t, ctx_id,
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}
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return ret;
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}
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+EXPORT_SYMBOL(sys_io_getevents);
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#ifdef CONFIG_COMPAT
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COMPAT_SYSCALL_DEFINE5(io_getevents, compat_aio_context_t, ctx_id,
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diff --git a/fs/namei.c b/fs/namei.c
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index d648d6d2b635..7cf8cfcaca53 100644
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--- a/fs/namei.c
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+++ b/fs/namei.c
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@@ -3882,6 +3882,7 @@ SYSCALL_DEFINE2(mkdir, const char __user *, pathname, umode_t, mode)
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{
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return sys_mkdirat(AT_FDCWD, pathname, mode);
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}
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+EXPORT_SYMBOL(sys_mkdir);
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int vfs_rmdir(struct inode *dir, struct dentry *dentry)
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{
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@@ -3985,6 +3986,7 @@ SYSCALL_DEFINE1(rmdir, const char __user *, pathname)
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{
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return do_rmdir(AT_FDCWD, pathname);
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}
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+EXPORT_SYMBOL(sys_rmdir);
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/**
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* vfs_unlink - unlink a filesystem object
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@@ -4138,6 +4140,7 @@ SYSCALL_DEFINE1(unlink, const char __user *, pathname)
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{
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return do_unlinkat(AT_FDCWD, pathname);
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}
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+EXPORT_SYMBOL(sys_unlink);
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int vfs_symlink(struct inode *dir, struct dentry *dentry, const char *oldname)
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{
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@@ -4195,6 +4198,7 @@ SYSCALL_DEFINE2(symlink, const char __user *, oldname, const char __user *, newn
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{
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return sys_symlinkat(oldname, AT_FDCWD, newname);
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}
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+EXPORT_SYMBOL(sys_symlink);
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/**
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* vfs_link - create a new link
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@@ -4683,6 +4687,7 @@ SYSCALL_DEFINE2(rename, const char __user *, oldname, const char __user *, newna
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{
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return sys_renameat2(AT_FDCWD, oldname, AT_FDCWD, newname, 0);
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}
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+EXPORT_SYMBOL(sys_rename);
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int vfs_whiteout(struct inode *dir, struct dentry *dentry)
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{
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diff --git a/fs/open.c b/fs/open.c
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index 29a2cdcbcb17..a6e0eb8c9db9 100644
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--- a/fs/open.c
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+++ b/fs/open.c
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@@ -595,6 +595,7 @@ SYSCALL_DEFINE2(chmod, const char __user *, filename, umode_t, mode)
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{
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return sys_fchmodat(AT_FDCWD, filename, mode);
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}
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+EXPORT_SYMBOL(sys_chmod);
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static int chown_common(const struct path *path, uid_t user, gid_t group)
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{
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@@ -680,6 +681,7 @@ SYSCALL_DEFINE3(lchown, const char __user *, filename, uid_t, user, gid_t, group
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return sys_fchownat(AT_FDCWD, filename, user, group,
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AT_SYMLINK_NOFOLLOW);
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}
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+EXPORT_SYMBOL(sys_lchown);
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SYSCALL_DEFINE3(fchown, unsigned int, fd, uid_t, user, gid_t, group)
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{
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diff --git a/fs/utimes.c b/fs/utimes.c
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index e4b3d7c2c9f5..e24cfb5e9c5c 100644
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--- a/fs/utimes.c
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+++ b/fs/utimes.c
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@@ -1,4 +1,5 @@
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// SPDX-License-Identifier: GPL-2.0
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+#include <linux/module.h>
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#include <linux/file.h>
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#include <linux/mount.h>
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#include <linux/namei.h>
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@@ -164,6 +165,7 @@ long do_utimes(int dfd, const char __user *filename, struct timespec64 *times,
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out:
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return error;
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}
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+EXPORT_SYMBOL(do_utimes);
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SYSCALL_DEFINE4(utimensat, int, dfd, const char __user *, filename,
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struct timespec __user *, utimes, int, flags)
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diff --git a/include/linux/aio.h b/include/linux/aio.h
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index 9d8aabecfe2d..078612c87c56 100644
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--- a/include/linux/aio.h
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+++ b/include/linux/aio.h
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@@ -14,6 +14,7 @@ typedef int (kiocb_cancel_fn)(struct kiocb *);
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/* prototypes */
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#ifdef CONFIG_AIO
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+#define HAS_AIO_MAX
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extern void exit_aio(struct mm_struct *mm);
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void kiocb_set_cancel_fn(struct kiocb *req, kiocb_cancel_fn *cancel);
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#else
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diff --git a/include/uapi/linux/major.h b/include/uapi/linux/major.h
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index 7e5fa8e15c43..edfbce01e4ac 100644
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--- a/include/uapi/linux/major.h
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+++ b/include/uapi/linux/major.h
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@@ -149,6 +149,7 @@
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#define UNIX98_PTY_SLAVE_MAJOR (UNIX98_PTY_MASTER_MAJOR+UNIX98_PTY_MAJOR_COUNT)
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#define DRBD_MAJOR 147
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+#define MARS_MAJOR 148
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#define RTF_MAJOR 150
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#define RAW_MAJOR 162
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diff --git a/mm/page_alloc.c b/mm/page_alloc.c
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index 6f71518a4558..433fbb7d10a6 100644
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--- a/mm/page_alloc.c
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+++ b/mm/page_alloc.c
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@@ -259,6 +259,7 @@ compound_page_dtor * const compound_page_dtors[] = {
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};
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int min_free_kbytes = 1024;
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+EXPORT_SYMBOL(min_free_kbytes);
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int user_min_free_kbytes = -1;
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int watermark_scale_factor = 10;
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@@ -6947,6 +6948,7 @@ static void __setup_per_zone_wmarks(void)
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/* update totalreserve_pages */
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calculate_totalreserve_pages();
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}
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+EXPORT_SYMBOL(setup_per_zone_wmarks);
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/**
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* setup_per_zone_wmarks - called when min_free_kbytes changes
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--
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2.25.0
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