mirror of https://github.com/schoebel/mars
173 lines
5.2 KiB
Diff
173 lines
5.2 KiB
Diff
From 10449f76cf46f3e0573f39555c59c610b4eb5bb3 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 11:06:24 +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 0612022162ad..632a1533156c 100644
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--- a/fs/aio.c
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+++ b/fs/aio.c
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@@ -155,6 +155,7 @@ struct kioctx {
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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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@@ -1306,6 +1307,7 @@ 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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/* sys_io_destroy:
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* Destroy the aio_context specified. May cancel any outstanding
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@@ -1338,6 +1340,7 @@ SYSCALL_DEFINE1(io_destroy, aio_context_t, ctx)
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pr_debug("EINVAL: io_destroy: 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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typedef ssize_t (aio_rw_op)(struct kiocb *, const struct iovec *,
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unsigned long, loff_t);
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@@ -1619,6 +1622,7 @@ 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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@@ -1709,6 +1713,7 @@ 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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@@ -1738,3 +1743,4 @@ 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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diff --git a/fs/namei.c b/fs/namei.c
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index c24781f07cf3..84f2eab4d262 100644
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--- a/fs/namei.c
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+++ b/fs/namei.c
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@@ -4464,12 +4464,17 @@ EXPORT_SYMBOL(unlock_rename);
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EXPORT_SYMBOL(vfs_create);
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EXPORT_SYMBOL(vfs_link);
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EXPORT_SYMBOL(vfs_mkdir);
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+EXPORT_SYMBOL(sys_mkdir);
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EXPORT_SYMBOL(vfs_mknod);
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EXPORT_SYMBOL(generic_permission);
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EXPORT_SYMBOL(vfs_readlink);
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EXPORT_SYMBOL(vfs_rename);
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+EXPORT_SYMBOL(sys_rename);
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EXPORT_SYMBOL(vfs_rmdir);
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+EXPORT_SYMBOL(sys_rmdir);
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EXPORT_SYMBOL(vfs_symlink);
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+EXPORT_SYMBOL(sys_symlink);
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EXPORT_SYMBOL(vfs_unlink);
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+EXPORT_SYMBOL(sys_unlink);
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EXPORT_SYMBOL(dentry_unhash);
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EXPORT_SYMBOL(generic_readlink);
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diff --git a/fs/open.c b/fs/open.c
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index dbe5085f7d89..b36f1917c9be 100644
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--- a/fs/open.c
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+++ b/fs/open.c
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@@ -526,6 +526,7 @@ 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(struct path *path, uid_t user, gid_t group)
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{
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@@ -611,6 +612,7 @@ 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 aa138d64560a..4a1f4a82847b 100644
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--- a/fs/utimes.c
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+++ b/fs/utimes.c
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@@ -1,3 +1,4 @@
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+#include <linux/module.h>
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#include <linux/compiler.h>
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#include <linux/file.h>
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#include <linux/fs.h>
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@@ -181,6 +182,7 @@ retry:
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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 d9c92daa3944..0706fad42946 100644
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--- a/include/linux/aio.h
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+++ b/include/linux/aio.h
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@@ -70,6 +70,7 @@ static inline void init_sync_kiocb(struct kiocb *kiocb, struct file *filp)
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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 ssize_t wait_on_sync_kiocb(struct kiocb *iocb);
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extern void aio_complete(struct kiocb *iocb, long res, long res2);
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struct mm_struct;
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diff --git a/include/uapi/linux/major.h b/include/uapi/linux/major.h
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index 620252e69b44..61a665cdb420 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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@@ -148,6 +148,7 @@
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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 0479732f6b02..ddfb1e310982 100644
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--- a/mm/page_alloc.c
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+++ b/mm/page_alloc.c
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@@ -206,6 +206,7 @@ static char * const zone_names[MAX_NR_ZONES] = {
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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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static unsigned long __meminitdata nr_kernel_pages;
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@@ -5718,6 +5719,7 @@ 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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