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authorRam Pai <linuxram@us.ibm.com>2008-03-27 13:06:25 +0100
committerAl Viro <viro@zeniv.linux.org.uk>2008-04-23 00:05:03 -0400
commit2d4d4864ac08caff5c204a752bd004eed4f08760 (patch)
treea8907c33afae589146fdcd06eacd740aff48c6a1 /include/linux/mnt_namespace.h
parenta1a2c409b666befc58c2db9c7fbddf200f153470 (diff)
downloadop-kernel-dev-2d4d4864ac08caff5c204a752bd004eed4f08760.zip
op-kernel-dev-2d4d4864ac08caff5c204a752bd004eed4f08760.tar.gz
[patch 6/7] vfs: mountinfo: add /proc/<pid>/mountinfo
[mszeredi@suse.cz] rewrite and split big patch into managable chunks /proc/mounts in its current form lacks important information: - propagation state - root of mount for bind mounts - the st_dev value used within the filesystem - identifier for each mount and it's parent It also suffers from the following problems: - not easily extendable - ambiguity of mountpoints within a chrooted environment - doesn't distinguish between filesystem dependent and independent options - doesn't distinguish between per mount and per super block options This patch introduces /proc/<pid>/mountinfo which attempts to address all these deficiencies. Code shared between /proc/<pid>/mounts and /proc/<pid>/mountinfo is extracted into separate functions. Thanks to Al Viro for the help in getting the design right. Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'include/linux/mnt_namespace.h')
-rw-r--r--include/linux/mnt_namespace.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/mnt_namespace.h b/include/linux/mnt_namespace.h
index c078aac..830bbcd 100644
--- a/include/linux/mnt_namespace.h
+++ b/include/linux/mnt_namespace.h
@@ -46,6 +46,7 @@ static inline void get_mnt_ns(struct mnt_namespace *ns)
}
extern const struct seq_operations mounts_op;
+extern const struct seq_operations mountinfo_op;
extern const struct seq_operations mountstats_op;
#endif
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