The patch titled
r/o bind mounts: Accept passing a mnt NULL pointer to mnt_drop_write()
has been removed from the -mm tree. Its filename was
r-o-bind-mounts-track-number-of-mount-writers-fix.patch
This patch was dropped because an updated version will be merged
------------------------------------------------------
Subject: r/o bind mounts: Accept passing a mnt NULL pointer to mnt_drop_write()
From: Jan Blunck <jblunck@xxxxxxx>
In case of somebody opens a file with dentry_open(dentry, NULL, ...) we
don't want to stumble on the NULL pointer mnt in struct file.
Signed-off-by: Jan Blunck <jblunck@xxxxxxx>
Cc: Dave Hansen <haveblue@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/namespace.c | 3 +++
1 file changed, 3 insertions(+)
diff -puN fs/namespace.c~r-o-bind-mounts-track-number-of-mount-writers-fix fs/namespace.c
--- a/fs/namespace.c~r-o-bind-mounts-track-number-of-mount-writers-fix
+++ a/fs/namespace.c
@@ -249,6 +249,9 @@ void mnt_drop_write(struct vfsmount *mnt
int must_check_underflow = 0;
struct mnt_writer *cpu_writer;
+ if (!mnt)
+ return;
+
cpu_writer = &get_cpu_var(mnt_writers);
spin_lock(&cpu_writer->lock);
_
Patches currently in -mm which might be from jblunck@xxxxxxx are
r-o-bind-mounts-track-number-of-mount-writers-fix.patch
dont-touch-fs_struct-in-drivers.patch
dont-touch-fs_struct-in-usermodehelper.patch
remove-path_release_on_umount.patch
move-struct-path-into-its-own-header.patch
embed-a-struct-path-into-struct-nameidata-instead-of-nd-dentrymnt.patch
embed-a-struct-path-into-struct-nameidata-instead-of-nd-dentrymnt-checkpatch-fixes.patch
introduce-path_put.patch
use-path_put-in-a-few-places-instead-of-mntdput.patch
introduce-path_get.patch
use-struct-path-in-fs_struct.patch
make-set_fs_rootpwd-take-a-struct-path.patch
introduce-path_get-unionfs.patch
embed-a-struct-path-into-struct-nameidata-instead-of-nd-dentrymnt-unionfs.patch
introduce-path_put-unionfs.patch
one-less-parameter-to-__d_path.patch
one-less-parameter-to-__d_path-checkpatch-fixes.patch
d_path-kerneldoc-cleanup.patch
d_path-use-struct-path-in-struct-avc_audit_data.patch
d_path-use-struct-path-in-struct-avc_audit_data-checkpatch-fixes.patch
d_path-make-proc_get_link-use-a-struct-path-argument.patch
d_path-make-get_dcookie-use-a-struct-path-argument.patch
d_path-make-get_dcookie-use-a-struct-path-argument-checkpatch-fixes.patch
use-struct-path-in-struct-svc_export.patch
use-struct-path-in-struct-svc_export-checkpatch-fixes.patch
use-struct-path-in-struct-svc_expkey.patch
d_path-make-seq_path-use-a-struct-path-argument.patch
d_path-make-d_path-use-a-struct-path.patch
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