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Replace aufs with overlayfs 

svn path=/dists/trunk/linux/; revision=22150
This commit is contained in:
Ben Hutchings 2014-12-09 03:09:37 +00:00
parent dff5dedd0f
commit af98d628cc
10 changed files with 9 additions and 34318 deletions
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4
debian/changelog vendored
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@ -2,6 +2,10 @@ linux (3.18-1~exp1) UNRELEASED; urgency=medium
* New upstream release: http://kernelnewbies.org/Linux_3.18
[ Ben Hutchings ]
* Remove aufs
* vfs: Enable OVERLAY_FS as module
-- Ben Hutchings <ben@decadent.org.uk> Tue, 09 Dec 2014 02:08:47 +0000
linux (3.17.4-1~exp1) experimental; urgency=medium

25
debian/config/config vendored
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@ -4435,26 +4435,6 @@ CONFIG_AFS_FS=m
# CONFIG_AFS_DEBUG is not set
CONFIG_AFS_FSCACHE=y
##
## file: fs/aufs/Kconfig
##
CONFIG_AUFS_FS=m
## choice: Maximum number of branches
CONFIG_AUFS_BRANCH_MAX_127=y
# CONFIG_AUFS_BRANCH_MAX_511 is not set
# CONFIG_AUFS_BRANCH_MAX_1023 is not set
# CONFIG_AUFS_BRANCH_MAX_32767 is not set
## end choice
# CONFIG_AUFS_HNOTIFY is not set
CONFIG_AUFS_EXPORT=y
# CONFIG_AUFS_FHSM is not set
# CONFIG_AUFS_RDU is not set
# CONFIG_AUFS_SHWH is not set
# CONFIG_AUFS_BR_RAMFS is not set
# CONFIG_AUFS_BR_FUSE is not set
CONFIG_AUFS_BR_HFSPLUS=y
# CONFIG_AUFS_DEBUG is not set
##
## file: fs/autofs4/Kconfig
##
@ -4838,6 +4818,11 @@ CONFIG_OCFS2_DEBUG_MASKLOG=y
##
CONFIG_OMFS_FS=m
##
## file: fs/overlayfs/Kconfig
##
CONFIG_OVERLAY_FS=m
##
## file: fs/proc/Kconfig
##

30
debian/patches/debian/aufs3-mark-as-staging.patch vendored
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@ -1,30 +0,0 @@
From: Ben Hutchings <ben@decadent.org.uk>
Subject: aufs: mark as staging
Forwarded: not-needed
This hasn't been reviewed upstream, so should have the same status
as code in drivers/staging.
Also note in the MAINTAINERS file that it's not upstream.
--- a/fs/aufs/module.c
+++ b/fs/aufs/module.c
@@ -103,6 +103,7 @@ MODULE_DESCRIPTION(AUFS_NAME
" -- Advanced multi layered unification filesystem");
MODULE_VERSION(AUFS_VERSION);
MODULE_ALIAS_FS(AUFS_NAME);
+MODULE_INFO(staging, "Y");
/* this module parameter has no meaning when SYSFS is disabled */
int sysaufs_brs = 1;
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1705,7 +1705,7 @@ L: aufs-users@lists.sourceforge.net (mem
W: http://aufs.sourceforge.net
T: git://git.code.sf.net/p/aufs/aufs3-linux
T: git://github.com/sfjro/aufs3-linux.git
-S: Supported
+S: Supported, not upstream
F: Documentation/filesystems/aufs/
F: Documentation/ABI/testing/debugfs-aufs
F: Documentation/ABI/testing/sysfs-aufs

33282
debian/patches/features/all/aufs3/aufs3-add.patch vendored
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File diff suppressed because it is too large Load Diff

132
debian/patches/features/all/aufs3/aufs3-base.patch vendored
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@ -1,132 +0,0 @@
From: J. R. Okajima <hooanon05@yahoo.co.jp>
Date: Sun Oct 12 08:52:06 2014 +0900
Subject: aufs3.17 base patch
Origin: http://sourceforge.net/p/aufs/aufs3-standalone/ci/3316237b92dd0660799fdc253a925d5065ec9c6b/tree/
Bug-Debian: https://bugs.debian.org/541828
Patch headers added by debian/patches/features/all/aufs3/gen-patch
aufs3.17 base patch
diff --git a/MAINTAINERS b/MAINTAINERS
index f10ed39..22b72ce 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1747,6 +1747,20 @@ F: include/linux/audit.h
F: include/uapi/linux/audit.h
F: kernel/audit*
+AUFS (advanced multi layered unification filesystem) FILESYSTEM
+M: "J. R. Okajima" <hooanon05g@gmail.com>
+L: linux-unionfs@vger.kernel.org
+L: aufs-users@lists.sourceforge.net (members only)
+W: http://aufs.sourceforge.net
+T: git://git.code.sf.net/p/aufs/aufs3-linux
+T: git://github.com/sfjro/aufs3-linux.git
+S: Supported
+F: Documentation/filesystems/aufs/
+F: Documentation/ABI/testing/debugfs-aufs
+F: Documentation/ABI/testing/sysfs-aufs
+F: fs/aufs/
+F: include/uapi/linux/aufs_type.h
+
AUXILIARY DISPLAY DRIVERS
M: Miguel Ojeda Sandonis <miguel.ojeda.sandonis@gmail.com>
W: http://miguelojeda.es/auxdisplay.htm
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index 6cb1beb..30efd68 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -692,6 +692,24 @@ static inline int is_loop_device(struct file *file)
return i && S_ISBLK(i->i_mode) && MAJOR(i->i_rdev) == LOOP_MAJOR;
}
+/*
+ * for AUFS
+ * no get/put for file.
+ */
+struct file *loop_backing_file(struct super_block *sb)
+{
+ struct file *ret;
+ struct loop_device *l;
+
+ ret = NULL;
+ if (MAJOR(sb->s_dev) == LOOP_MAJOR) {
+ l = sb->s_bdev->bd_disk->private_data;
+ ret = l->lo_backing_file;
+ }
+ return ret;
+}
+EXPORT_SYMBOL_GPL(loop_backing_file);
+
/* loop sysfs attributes */
static ssize_t loop_attr_show(struct device *dev, char *page,
diff --git a/fs/inode.c b/fs/inode.c
index 26753ba..df21e66 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -1497,7 +1497,7 @@ static int relatime_need_update(struct vfsmount *mnt, struct inode *inode,
* This does the actual work of updating an inodes time or version. Must have
* had called mnt_want_write() before calling this.
*/
-static int update_time(struct inode *inode, struct timespec *time, int flags)
+int update_time(struct inode *inode, struct timespec *time, int flags)
{
if (inode->i_op->update_time)
return inode->i_op->update_time(inode, time, flags);
diff --git a/fs/splice.c b/fs/splice.c
index f5cb9ba..9ba380c 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -1114,8 +1114,8 @@ EXPORT_SYMBOL(generic_splice_sendpage);
/*
* Attempt to initiate a splice from pipe to file.
*/
-static long do_splice_from(struct pipe_inode_info *pipe, struct file *out,
- loff_t *ppos, size_t len, unsigned int flags)
+long do_splice_from(struct pipe_inode_info *pipe, struct file *out,
+ loff_t *ppos, size_t len, unsigned int flags)
{
ssize_t (*splice_write)(struct pipe_inode_info *, struct file *,
loff_t *, size_t, unsigned int);
@@ -1131,9 +1131,9 @@ static long do_splice_from(struct pipe_inode_info *pipe, struct file *out,
/*
* Attempt to initiate a splice from a file to a pipe.
*/
-static long do_splice_to(struct file *in, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
- unsigned int flags)
+long do_splice_to(struct file *in, loff_t *ppos,
+ struct pipe_inode_info *pipe, size_t len,
+ unsigned int flags)
{
ssize_t (*splice_read)(struct file *, loff_t *,
struct pipe_inode_info *, size_t, unsigned int);
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 9418772..c28347c 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2645,6 +2645,7 @@ extern int inode_change_ok(const struct inode *, struct iattr *);
extern int inode_newsize_ok(const struct inode *, loff_t offset);
extern void setattr_copy(struct inode *inode, const struct iattr *attr);
+extern int update_time(struct inode *, struct timespec *, int);
extern int file_update_time(struct file *file);
extern int generic_show_options(struct seq_file *m, struct dentry *root);
diff --git a/include/linux/splice.h b/include/linux/splice.h
index da2751d..2e0fca6 100644
--- a/include/linux/splice.h
+++ b/include/linux/splice.h
@@ -83,4 +83,10 @@ extern void splice_shrink_spd(struct splice_pipe_desc *);
extern void spd_release_page(struct splice_pipe_desc *, unsigned int);
extern const struct pipe_buf_operations page_cache_pipe_buf_ops;
+
+extern long do_splice_from(struct pipe_inode_info *pipe, struct file *out,
+ loff_t *ppos, size_t len, unsigned int flags);
+extern long do_splice_to(struct file *in, loff_t *ppos,
+ struct pipe_inode_info *pipe, size_t len,
+ unsigned int flags);
#endif

43
debian/patches/features/all/aufs3/aufs3-kbuild.patch vendored
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@ -1,43 +0,0 @@
From: J. R. Okajima <hooanon05@yahoo.co.jp>
Date: Sun Oct 12 08:52:06 2014 +0900
Subject: aufs3.17 kbuild patch
Origin: http://sourceforge.net/p/aufs/aufs3-standalone/ci/3316237b92dd0660799fdc253a925d5065ec9c6b/tree/
Bug-Debian: https://bugs.debian.org/541828
Patch headers added by debian/patches/features/all/aufs3/gen-patch
aufs3.17 kbuild patch
diff --git a/fs/Kconfig b/fs/Kconfig
index 312393f..78632ed 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -209,6 +209,7 @@ source "fs/ufs/Kconfig"
source "fs/exofs/Kconfig"
source "fs/f2fs/Kconfig"
source "fs/efivarfs/Kconfig"
+source "fs/aufs/Kconfig"
endif # MISC_FILESYSTEMS
diff --git a/fs/Makefile b/fs/Makefile
index 90c8852..d4f52f3 100644
--- a/fs/Makefile
+++ b/fs/Makefile
@@ -125,3 +125,4 @@ obj-y += exofs/ # Multiple modules
obj-$(CONFIG_CEPH_FS) += ceph/
obj-$(CONFIG_PSTORE) += pstore/
obj-$(CONFIG_EFIVAR_FS) += efivarfs/
+obj-$(CONFIG_AUFS_FS) += aufs/
diff --git a/include/uapi/linux/Kbuild b/include/uapi/linux/Kbuild
index be88166..c236c53 100644
--- a/include/uapi/linux/Kbuild
+++ b/include/uapi/linux/Kbuild
@@ -56,6 +56,7 @@ header-y += atmppp.h
header-y += atmsap.h
header-y += atmsvc.h
header-y += audit.h
+header-y += aufs_type.h
header-y += auto_fs.h
header-y += auto_fs4.h
header-y += auxvec.h

467
debian/patches/features/all/aufs3/aufs3-mmap.patch vendored
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@ -1,467 +0,0 @@
From: J. R. Okajima <hooanon05@yahoo.co.jp>
Date: Sun Oct 12 08:52:06 2014 +0900
Subject: aufs3.17 mmap patch
Origin: http://sourceforge.net/p/aufs/aufs3-standalone/ci/3316237b92dd0660799fdc253a925d5065ec9c6b/tree/
Bug-Debian: https://bugs.debian.org/541828
Patch headers added by debian/patches/features/all/aufs3/gen-patch
aufs3.17 mmap patch
diff --git a/fs/buffer.c b/fs/buffer.c
index 3588a80..e185f4f 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -2455,7 +2455,7 @@ int block_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf,
* Update file times before taking page lock. We may end up failing the
* fault so this update may be superfluous but who really cares...
*/
- file_update_time(vma->vm_file);
+ vma_file_update_time(vma);
ret = __block_page_mkwrite(vma, vmf, get_block);
sb_end_pagefault(sb);
diff --git a/fs/proc/base.c b/fs/proc/base.c
index baf852b..6389b5e 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -1764,7 +1764,7 @@ static int proc_map_files_get_link(struct dentry *dentry, struct path *path)
down_read(&mm->mmap_sem);
vma = find_exact_vma(mm, vm_start, vm_end);
if (vma && vma->vm_file) {
- *path = vma->vm_file->f_path;
+ *path = vma_pr_or_file(vma)->f_path;
path_get(path);
rc = 0;
}
diff --git a/fs/proc/nommu.c b/fs/proc/nommu.c
index d4a3574..1397181 100644
--- a/fs/proc/nommu.c
+++ b/fs/proc/nommu.c
@@ -45,7 +45,10 @@ static int nommu_region_show(struct seq_file *m, struct vm_region *region)
file = region->vm_file;
if (file) {
- struct inode *inode = file_inode(region->vm_file);
+ struct inode *inode;
+
+ file = vmr_pr_or_file(region);
+ inode = file_inode(file);
dev = inode->i_sb->s_dev;
ino = inode->i_ino;
}
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index c341568..8564639 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -265,7 +265,10 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma, int is_pid)
const char *name = NULL;
if (file) {
- struct inode *inode = file_inode(vma->vm_file);
+ struct inode *inode;
+
+ file = vma_pr_or_file(vma);
+ inode = file_inode(file);
dev = inode->i_sb->s_dev;
ino = inode->i_ino;
pgoff = ((loff_t)vma->vm_pgoff) << PAGE_SHIFT;
@@ -1414,7 +1417,7 @@ static int show_numa_map(struct seq_file *m, void *v, int is_pid)
struct proc_maps_private *proc_priv = &numa_priv->proc_maps;
struct vm_area_struct *vma = v;
struct numa_maps *md = &numa_priv->md;
- struct file *file = vma->vm_file;
+ struct file *file = vma_pr_or_file(vma);
struct task_struct *task = proc_priv->task;
struct mm_struct *mm = vma->vm_mm;
struct mm_walk walk = {};
diff --git a/fs/proc/task_nommu.c b/fs/proc/task_nommu.c
index 678455d..0ef7ef4 100644
--- a/fs/proc/task_nommu.c
+++ b/fs/proc/task_nommu.c
@@ -141,7 +141,10 @@ static int nommu_vma_show(struct seq_file *m, struct vm_area_struct *vma,
file = vma->vm_file;
if (file) {
- struct inode *inode = file_inode(vma->vm_file);
+ struct inode *inode;
+
+ file = vma_pr_or_file(file);
+ inode = file_inode(file);
dev = inode->i_sb->s_dev;
ino = inode->i_ino;
pgoff = (loff_t)vma->vm_pgoff << PAGE_SHIFT;
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 8981cc8..9460928 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1184,6 +1184,28 @@ static inline int fixup_user_fault(struct task_struct *tsk,
}
#endif
+#ifdef CONFIG_MMU
+extern void vma_do_file_update_time(struct vm_area_struct *, const char[], int);
+extern struct file *vma_do_pr_or_file(struct vm_area_struct *, const char[],
+ int);
+extern void vma_do_get_file(struct vm_area_struct *, const char[], int);
+extern void vma_do_fput(struct vm_area_struct *, const char[], int);
+
+#define vma_file_update_time(vma) vma_do_file_update_time(vma, __func__, \
+ __LINE__)
+#define vma_pr_or_file(vma) vma_do_pr_or_file(vma, __func__, \
+ __LINE__)
+#define vma_get_file(vma) vma_do_get_file(vma, __func__, __LINE__)
+#define vma_fput(vma) vma_do_fput(vma, __func__, __LINE__)
+#else
+extern struct file *vmr_do_pr_or_file(struct vm_region *, const char[], int);
+extern void vmr_do_fput(struct vm_region *, const char[], int);
+
+#define vmr_pr_or_file(region) vmr_do_pr_or_file(region, __func__, \
+ __LINE__)
+#define vmr_fput(region) vmr_do_fput(region, __func__, __LINE__)
+#endif /* CONFIG_MMU */
+
extern int access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, int len, int write);
extern int access_remote_vm(struct mm_struct *mm, unsigned long addr,
void *buf, int len, int write);
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index 6e0b286..8f374ed 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -232,6 +232,7 @@ struct vm_region {
unsigned long vm_top; /* region allocated to here */
unsigned long vm_pgoff; /* the offset in vm_file corresponding to vm_start */
struct file *vm_file; /* the backing file or NULL */
+ struct file *vm_prfile; /* the virtual backing file or NULL */
int vm_usage; /* region usage count (access under nommu_region_sem) */
bool vm_icache_flushed : 1; /* true if the icache has been flushed for
@@ -300,6 +301,7 @@ struct vm_area_struct {
unsigned long vm_pgoff; /* Offset (within vm_file) in PAGE_SIZE
units, *not* PAGE_CACHE_SIZE */
struct file * vm_file; /* File we map to (can be NULL). */
+ struct file *vm_prfile; /* shadow of vm_file */
void * vm_private_data; /* was vm_pte (shared mem) */
#ifndef CONFIG_MMU
diff --git a/kernel/fork.c b/kernel/fork.c
index a91e47d..2e9d836c 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -424,7 +424,7 @@ static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm)
struct inode *inode = file_inode(file);
struct address_space *mapping = file->f_mapping;
- get_file(file);
+ vma_get_file(tmp);
if (tmp->vm_flags & VM_DENYWRITE)
atomic_dec(&inode->i_writecount);
mutex_lock(&mapping->i_mmap_mutex);
diff --git a/mm/Makefile b/mm/Makefile
index 632ae77..d3bdeb6 100644
--- a/mm/Makefile
+++ b/mm/Makefile
@@ -18,7 +18,7 @@ obj-y := filemap.o mempool.o oom_kill.o fadvise.o \
mm_init.o mmu_context.o percpu.o slab_common.o \
compaction.o balloon_compaction.o vmacache.o \
interval_tree.o list_lru.o workingset.o \
- iov_iter.o $(mmu-y)
+ iov_iter.o prfile.o $(mmu-y)
obj-y += init-mm.o
diff --git a/mm/filemap.c b/mm/filemap.c
index 90effcd..0021dc8 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -2058,7 +2058,7 @@ int filemap_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
int ret = VM_FAULT_LOCKED;
sb_start_pagefault(inode->i_sb);
- file_update_time(vma->vm_file);
+ vma_file_update_time(vma);
lock_page(page);
if (page->mapping != inode->i_mapping) {
unlock_page(page);
diff --git a/mm/fremap.c b/mm/fremap.c
index 72b8fa3..a00bbf0 100644
--- a/mm/fremap.c
+++ b/mm/fremap.c
@@ -224,16 +224,28 @@ get_write_lock:
*/
if (mapping_cap_account_dirty(mapping)) {
unsigned long addr;
- struct file *file = get_file(vma->vm_file);
+ struct file *file = vma->vm_file,
+ *prfile = vma->vm_prfile;
+
/* mmap_region may free vma; grab the info now */
vm_flags = vma->vm_flags;
+ vma_get_file(vma);
addr = mmap_region(file, start, size, vm_flags, pgoff);
- fput(file);
+ vma_fput(vma);
if (IS_ERR_VALUE(addr)) {
err = addr;
} else {
BUG_ON(addr != start);
+ if (prfile) {
+ struct vm_area_struct *new_vma;
+
+ new_vma = find_vma(mm, addr);
+ if (!new_vma->vm_prfile)
+ new_vma->vm_prfile = prfile;
+ if (new_vma != vma)
+ get_file(prfile);
+ }
err = 0;
}
goto out_freed;
diff --git a/mm/madvise.c b/mm/madvise.c
index 0938b30..0b66856 100644
--- a/mm/madvise.c
+++ b/mm/madvise.c
@@ -324,12 +324,12 @@ static long madvise_remove(struct vm_area_struct *vma,
* vma's reference to the file) can go away as soon as we drop
* mmap_sem.
*/
- get_file(f);
+ vma_get_file(vma);
up_read(&current->mm->mmap_sem);
error = do_fallocate(f,
FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE,
offset, end - start);
- fput(f);
+ vma_fput(vma);
down_read(&current->mm->mmap_sem);
return error;
}
diff --git a/mm/memory.c b/mm/memory.c
index e229970..5f5e345 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -2161,7 +2161,7 @@ reuse:
set_page_dirty_balance(dirty_page);
/* file_update_time outside page_lock */
if (vma->vm_file)
- file_update_time(vma->vm_file);
+ vma_file_update_time(vma);
}
put_page(dirty_page);
if (page_mkwrite) {
diff --git a/mm/mmap.c b/mm/mmap.c
index c0a3637..60df815 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -258,7 +258,7 @@ static struct vm_area_struct *remove_vma(struct vm_area_struct *vma)
if (vma->vm_ops && vma->vm_ops->close)
vma->vm_ops->close(vma);
if (vma->vm_file)
- fput(vma->vm_file);
+ vma_fput(vma);
mpol_put(vma_policy(vma));
kmem_cache_free(vm_area_cachep, vma);
return next;
@@ -868,7 +868,7 @@ again: remove_next = 1 + (end > next->vm_end);
if (remove_next) {
if (file) {
uprobe_munmap(next, next->vm_start, next->vm_end);
- fput(file);
+ vma_fput(vma);
}
if (next->anon_vma)
anon_vma_merge(vma, next);
@@ -1661,8 +1661,8 @@ out:
return addr;
unmap_and_free_vma:
+ vma_fput(vma);
vma->vm_file = NULL;
- fput(file);
/* Undo any partial mapping done by a device driver. */
unmap_region(mm, vma, prev, vma->vm_start, vma->vm_end);
@@ -2457,7 +2457,7 @@ static int __split_vma(struct mm_struct * mm, struct vm_area_struct * vma,
goto out_free_mpol;
if (new->vm_file)
- get_file(new->vm_file);
+ vma_get_file(new);
if (new->vm_ops && new->vm_ops->open)
new->vm_ops->open(new);
@@ -2476,7 +2476,7 @@ static int __split_vma(struct mm_struct * mm, struct vm_area_struct * vma,
if (new->vm_ops && new->vm_ops->close)
new->vm_ops->close(new);
if (new->vm_file)
- fput(new->vm_file);
+ vma_fput(new);
unlink_anon_vmas(new);
out_free_mpol:
mpol_put(vma_policy(new));
@@ -2865,7 +2865,7 @@ struct vm_area_struct *copy_vma(struct vm_area_struct **vmap,
if (anon_vma_clone(new_vma, vma))
goto out_free_mempol;
if (new_vma->vm_file)
- get_file(new_vma->vm_file);
+ vma_get_file(new_vma);
if (new_vma->vm_ops && new_vma->vm_ops->open)
new_vma->vm_ops->open(new_vma);
vma_link(mm, new_vma, prev, rb_link, rb_parent);
diff --git a/mm/msync.c b/mm/msync.c
index 992a167..ce1915b 100644
--- a/mm/msync.c
+++ b/mm/msync.c
@@ -84,13 +84,13 @@ SYSCALL_DEFINE3(msync, unsigned long, start, size_t, len, int, flags)
start = vma->vm_end;
if ((flags & MS_SYNC) && file &&
(vma->vm_flags & VM_SHARED)) {
- get_file(file);
+ vma_get_file(vma);
up_read(&mm->mmap_sem);
if (vma->vm_flags & VM_NONLINEAR)
error = vfs_fsync(file, 1);
else
error = vfs_fsync_range(file, fstart, fend, 1);
- fput(file);
+ vma_fput(vma);
if (error || start >= end)
goto out;
down_read(&mm->mmap_sem);
diff --git a/mm/nommu.c b/mm/nommu.c
index a881d96..5a402f4 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -658,7 +658,7 @@ static void __put_nommu_region(struct vm_region *region)
up_write(&nommu_region_sem);
if (region->vm_file)
- fput(region->vm_file);
+ vmr_fput(region);
/* IO memory and memory shared directly out of the pagecache
* from ramfs/tmpfs mustn't be released here */
@@ -823,7 +823,7 @@ static void delete_vma(struct mm_struct *mm, struct vm_area_struct *vma)
if (vma->vm_ops && vma->vm_ops->close)
vma->vm_ops->close(vma);
if (vma->vm_file)
- fput(vma->vm_file);
+ vma_fput(vma);
put_nommu_region(vma->vm_region);
kmem_cache_free(vm_area_cachep, vma);
}
@@ -1385,7 +1385,7 @@ unsigned long do_mmap_pgoff(struct file *file,
goto error_just_free;
}
}
- fput(region->vm_file);
+ vmr_fput(region);
kmem_cache_free(vm_region_jar, region);
region = pregion;
result = start;
@@ -1461,10 +1461,10 @@ error_just_free:
up_write(&nommu_region_sem);
error:
if (region->vm_file)
- fput(region->vm_file);
+ vmr_fput(region);
kmem_cache_free(vm_region_jar, region);
if (vma->vm_file)
- fput(vma->vm_file);
+ vma_fput(vma);
kmem_cache_free(vm_area_cachep, vma);
kleave(" = %d", ret);
return ret;
diff --git a/mm/prfile.c b/mm/prfile.c
new file mode 100644
index 0000000..fc708d2
--- /dev/null
+++ b/mm/prfile.c
@@ -0,0 +1,86 @@
+/*
+ * Mainly for aufs which mmap(2) diffrent file and wants to print different path
+ * in /proc/PID/maps.
+ * Call these functions via macros defined in linux/mm.h.
+ *
+ * See Documentation/filesystems/aufs/design/06mmap.txt
+ *
+ * Copyright (c) 2014 Junjro R. Okajima
+ * Copyright (c) 2014 Ian Campbell
+ */
+
+#include <linux/mm.h>
+#include <linux/file.h>
+#include <linux/fs.h>
+
+/* #define PRFILE_TRACE */
+static inline void prfile_trace(struct file *f, struct file *pr,
+ const char func[], int line, const char func2[])
+{
+#ifdef PRFILE_TRACE
+ if (pr)
+ pr_info("%s:%d: %s, %p\n", func, line, func2,
+ f ? (char *)f->f_dentry->d_name.name : "(null)");
+#endif
+}
+
+#ifdef CONFIG_MMU
+void vma_do_file_update_time(struct vm_area_struct *vma, const char func[],
+ int line)
+{
+ struct file *f = vma->vm_file, *pr = vma->vm_prfile;
+
+ prfile_trace(f, pr, func, line, __func__);
+ file_update_time(f);
+ if (f && pr)
+ file_update_time(pr);
+}
+
+struct file *vma_do_pr_or_file(struct vm_area_struct *vma, const char func[],
+ int line)
+{
+ struct file *f = vma->vm_file, *pr = vma->vm_prfile;
+
+ prfile_trace(f, pr, func, line, __func__);
+ return (f && pr) ? pr : f;
+}
+
+void vma_do_get_file(struct vm_area_struct *vma, const char func[], int line)
+{
+ struct file *f = vma->vm_file, *pr = vma->vm_prfile;
+
+ prfile_trace(f, pr, func, line, __func__);
+ get_file(f);
+ if (f && pr)
+ get_file(pr);
+}
+
+void vma_do_fput(struct vm_area_struct *vma, const char func[], int line)
+{
+ struct file *f = vma->vm_file, *pr = vma->vm_prfile;
+
+ prfile_trace(f, pr, func, line, __func__);
+ fput(f);
+ if (f && pr)
+ fput(pr);
+}
+#else
+struct file *vmr_do_pr_or_file(struct vm_region *region, const char func[],
+ int line)
+{
+ struct file *f = region->vm_file, *pr = region->vm_prfile;
+
+ prfile_trace(f, pr, func, line, __func__);
+ return (f && pr) ? pr : f;
+}
+
+void vmr_do_fput(struct vm_region *region, const char func[], int line)
+{
+ struct file *f = region->vm_file, *pr = region->vm_prfile;
+
+ prfile_trace(f, pr, func, line, __func__);
+ fput(f);
+ if (f && pr)
+ fput(pr);
+}
+#endif /* CONFIG_MMU */

282
debian/patches/features/all/aufs3/aufs3-standalone.patch vendored
View File

@ -1,282 +0,0 @@
From: J. R. Okajima <hooanon05@yahoo.co.jp>
Date: Sun Oct 12 08:52:06 2014 +0900
Subject: aufs3.17 standalone patch
Origin: http://sourceforge.net/p/aufs/aufs3-standalone/ci/3316237b92dd0660799fdc253a925d5065ec9c6b/tree/
Bug-Debian: https://bugs.debian.org/541828
Patch headers added by debian/patches/features/all/aufs3/gen-patch
aufs3.17 standalone patch
diff --git a/fs/inode.c b/fs/inode.c
index df21e66..c8df03d 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -57,6 +57,7 @@ static struct hlist_head *inode_hashtable __read_mostly;
static __cacheline_aligned_in_smp DEFINE_SPINLOCK(inode_hash_lock);
__cacheline_aligned_in_smp DEFINE_SPINLOCK(inode_sb_list_lock);
+EXPORT_SYMBOL_GPL(inode_sb_list_lock);
/*
* Empty aops. Can be used for the cases where the user does not
@@ -1513,6 +1514,7 @@ int update_time(struct inode *inode, struct timespec *time, int flags)
mark_inode_dirty_sync(inode);
return 0;
}
+EXPORT_SYMBOL_GPL(update_time);
/**
* touch_atime - update the access time
diff --git a/fs/namespace.c b/fs/namespace.c
index ef42d9b..88af377 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -452,6 +452,7 @@ void __mnt_drop_write(struct vfsmount *mnt)
mnt_dec_writers(real_mount(mnt));
preempt_enable();
}
+EXPORT_SYMBOL_GPL(__mnt_drop_write);
/**
* mnt_drop_write - give up write access to a mount
@@ -1584,6 +1585,7 @@ int iterate_mounts(int (*f)(struct vfsmount *, void *), void *arg,
}
return 0;
}
+EXPORT_SYMBOL_GPL(iterate_mounts);
static void cleanup_group_ids(struct mount *mnt, struct mount *end)
{
diff --git a/fs/notify/group.c b/fs/notify/group.c
index ad19959..adf290d 100644
--- a/fs/notify/group.c
+++ b/fs/notify/group.c
@@ -22,6 +22,7 @@
#include <linux/srcu.h>
#include <linux/rculist.h>
#include <linux/wait.h>
+#include <linux/module.h>
#include <linux/fsnotify_backend.h>
#include "fsnotify.h"
@@ -72,6 +73,7 @@ void fsnotify_get_group(struct fsnotify_group *group)
{
atomic_inc(&group->refcnt);
}
+EXPORT_SYMBOL_GPL(fsnotify_get_group);
/*
* Drop a reference to a group. Free it if it's through.
@@ -81,6 +83,7 @@ void fsnotify_put_group(struct fsnotify_group *group)
if (atomic_dec_and_test(&group->refcnt))
fsnotify_final_destroy_group(group);
}
+EXPORT_SYMBOL_GPL(fsnotify_put_group);
/*
* Create a new fsnotify_group and hold a reference for the group returned.
@@ -109,6 +112,7 @@ struct fsnotify_group *fsnotify_alloc_group(const struct fsnotify_ops *ops)
return group;
}
+EXPORT_SYMBOL_GPL(fsnotify_alloc_group);
int fsnotify_fasync(int fd, struct file *file, int on)
{
diff --git a/fs/notify/mark.c b/fs/notify/mark.c
index d90deaa..60b4239 100644
--- a/fs/notify/mark.c
+++ b/fs/notify/mark.c
@@ -109,6 +109,7 @@ void fsnotify_put_mark(struct fsnotify_mark *mark)
mark->free_mark(mark);
}
}
+EXPORT_SYMBOL_GPL(fsnotify_put_mark);
/*
* Any time a mark is getting freed we end up here.
@@ -191,6 +192,7 @@ void fsnotify_destroy_mark(struct fsnotify_mark *mark,
fsnotify_destroy_mark_locked(mark, group);
mutex_unlock(&group->mark_mutex);
}
+EXPORT_SYMBOL_GPL(fsnotify_destroy_mark);
void fsnotify_set_mark_mask_locked(struct fsnotify_mark *mark, __u32 mask)
{
@@ -275,6 +277,7 @@ err:
return ret;
}
+EXPORT_SYMBOL_GPL(fsnotify_add_mark);
int fsnotify_add_mark(struct fsnotify_mark *mark, struct fsnotify_group *group,
struct inode *inode, struct vfsmount *mnt, int allow_dups)
@@ -336,6 +339,7 @@ void fsnotify_init_mark(struct fsnotify_mark *mark,
atomic_set(&mark->refcnt, 1);
mark->free_mark = free_mark;
}
+EXPORT_SYMBOL_GPL(fsnotify_init_mark);
static int fsnotify_mark_destroy(void *ignored)
{
diff --git a/fs/open.c b/fs/open.c
index d6fd3ac..5e99d8b 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -62,6 +62,7 @@ int do_truncate(struct dentry *dentry, loff_t length, unsigned int time_attrs,
mutex_unlock(&dentry->d_inode->i_mutex);
return ret;
}
+EXPORT_SYMBOL_GPL(do_truncate);
long vfs_truncate(struct path *path, loff_t length)
{
@@ -298,6 +299,7 @@ int do_fallocate(struct file *file, int mode, loff_t offset, loff_t len)
sb_end_write(inode->i_sb);
return ret;
}
+EXPORT_SYMBOL_GPL(do_fallocate);
SYSCALL_DEFINE4(fallocate, int, fd, int, mode, loff_t, offset, loff_t, len)
{
diff --git a/fs/splice.c b/fs/splice.c
index 9ba380c..3419932 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -1127,6 +1127,7 @@ long do_splice_from(struct pipe_inode_info *pipe, struct file *out,
return splice_write(pipe, out, ppos, len, flags);
}
+EXPORT_SYMBOL_GPL(do_splice_from);
/*
* Attempt to initiate a splice from a file to a pipe.
@@ -1153,6 +1154,7 @@ long do_splice_to(struct file *in, loff_t *ppos,
return splice_read(in, ppos, pipe, len, flags);
}
+EXPORT_SYMBOL_GPL(do_splice_to);
/**
* splice_direct_to_actor - splices data directly between two non-pipes
diff --git a/security/commoncap.c b/security/commoncap.c
index bab0611..3fa2f82 100644
--- a/security/commoncap.c
+++ b/security/commoncap.c
@@ -979,9 +979,11 @@ int cap_mmap_addr(unsigned long addr)
}
return ret;
}
+EXPORT_SYMBOL_GPL(cap_mmap_addr);
int cap_mmap_file(struct file *file, unsigned long reqprot,
unsigned long prot, unsigned long flags)
{
return 0;
}
+EXPORT_SYMBOL_GPL(cap_mmap_file);
diff --git a/security/device_cgroup.c b/security/device_cgroup.c
index 188c1d2..426d9af 100644
--- a/security/device_cgroup.c
+++ b/security/device_cgroup.c
@@ -7,6 +7,7 @@
#include <linux/device_cgroup.h>
#include <linux/cgroup.h>
#include <linux/ctype.h>
+#include <linux/export.h>
#include <linux/list.h>
#include <linux/uaccess.h>
#include <linux/seq_file.h>
@@ -849,6 +850,7 @@ int __devcgroup_inode_permission(struct inode *inode, int mask)
return __devcgroup_check_permission(type, imajor(inode), iminor(inode),
access);
}
+EXPORT_SYMBOL_GPL(__devcgroup_inode_permission);
int devcgroup_inode_mknod(int mode, dev_t dev)
{
diff --git a/security/security.c b/security/security.c
index e41b1a8..37cc870 100644
--- a/security/security.c
+++ b/security/security.c
@@ -407,6 +407,7 @@ int security_path_rmdir(struct path *dir, struct dentry *dentry)
return 0;
return security_ops->path_rmdir(dir, dentry);
}
+EXPORT_SYMBOL_GPL(security_path_rmdir);
int security_path_unlink(struct path *dir, struct dentry *dentry)
{
@@ -423,6 +424,7 @@ int security_path_symlink(struct path *dir, struct dentry *dentry,
return 0;
return security_ops->path_symlink(dir, dentry, old_name);
}
+EXPORT_SYMBOL_GPL(security_path_symlink);
int security_path_link(struct dentry *old_dentry, struct path *new_dir,
struct dentry *new_dentry)
@@ -431,6 +433,7 @@ int security_path_link(struct dentry *old_dentry, struct path *new_dir,
return 0;
return security_ops->path_link(old_dentry, new_dir, new_dentry);
}
+EXPORT_SYMBOL_GPL(security_path_link);
int security_path_rename(struct path *old_dir, struct dentry *old_dentry,
struct path *new_dir, struct dentry *new_dentry,
@@ -458,6 +461,7 @@ int security_path_truncate(struct path *path)
return 0;
return security_ops->path_truncate(path);
}
+EXPORT_SYMBOL_GPL(security_path_truncate);
int security_path_chmod(struct path *path, umode_t mode)
{
@@ -465,6 +469,7 @@ int security_path_chmod(struct path *path, umode_t mode)
return 0;
return security_ops->path_chmod(path, mode);
}
+EXPORT_SYMBOL_GPL(security_path_chmod);
int security_path_chown(struct path *path, kuid_t uid, kgid_t gid)
{
@@ -472,6 +477,7 @@ int security_path_chown(struct path *path, kuid_t uid, kgid_t gid)
return 0;
return security_ops->path_chown(path, uid, gid);
}
+EXPORT_SYMBOL_GPL(security_path_chown);
int security_path_chroot(struct path *path)
{
@@ -557,6 +563,7 @@ int security_inode_readlink(struct dentry *dentry)
return 0;
return security_ops->inode_readlink(dentry);
}
+EXPORT_SYMBOL_GPL(security_inode_readlink);
int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd)
{
@@ -571,6 +578,7 @@ int security_inode_permission(struct inode *inode, int mask)
return 0;
return security_ops->inode_permission(inode, mask);
}
+EXPORT_SYMBOL_GPL(security_inode_permission);
int security_inode_setattr(struct dentry *dentry, struct iattr *attr)
{
@@ -693,6 +701,7 @@ int security_file_permission(struct file *file, int mask)
return fsnotify_perm(file, mask);
}
+EXPORT_SYMBOL_GPL(security_file_permission);
int security_file_alloc(struct file *file)
{
@@ -753,6 +762,7 @@ int security_mmap_file(struct file *file, unsigned long prot,
return ret;
return ima_file_mmap(file, prot);
}
+EXPORT_SYMBOL_GPL(security_mmap_file);
int security_mmap_addr(unsigned long addr)
{

52
debian/patches/features/all/aufs3/gen-patch vendored
View File

@ -1,52 +0,0 @@
#!/bin/bash -e
aufs_dir="$1"
export GIT_DIR="$aufs_dir/.git"
from_line='From: J. R. Okajima <hooanon05@yahoo.co.jp>'
if [ -d "$GIT_DIR" ]; then
origin_line="Origin: http://sourceforge.net/p/aufs/aufs3-standalone/ci/$(git rev-list HEAD -1)/tree/"
else
echo >&2 "W: Cannot include a specific origin URL without an aufs git repo"
origin_line='Origin: http://sourceforge.net/p/aufs/aufs3-standalone/ref/master/branches/'
fi
bug_line='Bug-Debian: https://bugs.debian.org/541828'
for patch in aufs3-{base,kbuild,mmap,standalone}.patch; do
{
echo "$from_line"
if [ -d "$GIT_DIR" ]; then
git log --pretty='Date: %ad' HEAD -1 -- "$patch"
fi
echo -n 'Subject: '
head -1 "$aufs_dir/$patch"
echo "$origin_line"
echo "$bug_line"
echo
echo 'Patch headers added by debian/patches/features/all/aufs3/gen-patch'
echo
sed 's/^+.*EXPORT_SYMBOL\b/&_GPL/' < "$aufs_dir"/"$patch"
} > debian/patches/features/all/aufs3/"$patch"
done
{
echo "$from_line"
if [ -d "$GIT_DIR" ]; then
git log --pretty='Date: %ad' HEAD -1
fi
sed -rn 's/^#define AUFS_VERSION[[:space:]]+"(.*)"/Subject: aufs\1/p' \
< "$aufs_dir/include/uapi/linux/aufs_type.h"
echo "$origin_line"
echo "$bug_line"
echo
echo 'Patch generated by debian/patches/features/all/aufs3/gen-patch'
echo
cd "$aufs_dir" && \
{ find Documentation fs -type f; \
echo include/uapi/linux/aufs_type.h; } | \
LC_ALL=C sort | \
while read file; do
diff -uN a/"$file" "$file" | filterdiff --addnewprefix=b/
done
} > debian/patches/features/all/aufs3/aufs3-add.patch

10
debian/patches/series vendored
View File

@ -16,16 +16,6 @@ bugfix/all/firmware_class-log-every-success-and-failure.patch
bugfix/all/firmware-remove-redundant-log-messages-from-drivers.patch
bugfix/all/radeon-firmware-is-required-for-drm-and-kms-on-r600-onward.patch
# Patches and source files from aufs3 repository, imported with
# debian/patches/features/all/aufs3/gen-patch.
#features/all/aufs3/aufs3-kbuild.patch
#features/all/aufs3/aufs3-base.patch
#features/all/aufs3/aufs3-mmap.patch
#features/all/aufs3/aufs3-standalone.patch
#features/all/aufs3/aufs3-add.patch
# Debian-specific changes
#debian/aufs3-mark-as-staging.patch
# Change some defaults for security reasons
debian/af_802154-Disable-auto-loading-as-mitigation-against.patch
debian/rds-Disable-auto-loading-as-mitigation-against-local.patch