diff options
| author |   David Howells <dhowells@redhat.com> | 2011-01-14 18:45:31 +0000 |
|---|---|---|
| committer |   Al Viro <viro@zeniv.linux.org.uk> | 2011-01-15 20:07:33 -0500 |
| commit | 6f45b65672c8017d5e210e338bb5858a938ef445 (patch) | |
| tree | b62877c489fb682033c37d30d91c53e4d0c3833a /include | |
| parent | Add a dentry op to allow processes to be held during pathwalk transit (diff) | |
| download | linux-dev-6f45b65672c8017d5e210e338bb5858a938ef445.tar.xz linux-dev-6f45b65672c8017d5e210e338bb5858a938ef445.zip | |
Add an AT_NO_AUTOMOUNT flag to suppress terminal automount
Add an AT_NO_AUTOMOUNT flag to suppress terminal automounting of automount
point directories. This can be used by fstatat() users to permit the
gathering of attributes on an automount point and also prevent
mass-automounting of a directory of automount points by ls.
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Ian Kent <raven@themaw.net>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/fcntl.h | 1 | ||||
| -rw-r--r-- | include/linux/namei.h | 2 |
2 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/fcntl.h b/include/linux/fcntl.h index afc00af3229b..a562fa5fb4e3 100644 --- a/include/linux/fcntl.h +++ b/include/linux/fcntl.h @@ -45,6 +45,7 @@ #define AT_REMOVEDIR 0x200 /* Remove directory instead of unlinking file. */ #define AT_SYMLINK_FOLLOW 0x400 /* Follow symbolic links. */ +#define AT_NO_AUTOMOUNT 0x800 /* Suppress terminal automount traversal */ #ifdef __KERNEL__ diff --git a/include/linux/namei.h b/include/linux/namei.h index 8ef2c789c2a8..f276d4fa01fc 100644 --- a/include/linux/namei.h +++ b/include/linux/namei.h @@ -45,6 +45,7 @@ enum {LAST_NORM, LAST_ROOT, LAST_DOT, LAST_DOTDOT, LAST_BIND}; * - ending slashes ok even for nonexistent files * - internal "there are more path components" flag * - dentry cache is untrusted; force a real lookup + * - suppress terminal automount */ #define LOOKUP_FOLLOW 0x0001 #define LOOKUP_DIRECTORY 0x0002 @@ -53,6 +54,7 @@ enum {LAST_NORM, LAST_ROOT, LAST_DOT, LAST_DOTDOT, LAST_BIND}; #define LOOKUP_PARENT 0x0010 #define LOOKUP_REVAL 0x0020 #define LOOKUP_RCU 0x0040 +#define LOOKUP_NO_AUTOMOUNT 0x0080 /* * Intent data */ |