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| author | Eric W. Biederman <ebiederm@xmission.com> | 2015-05-11 23:44:25 +0200 |
|---|---|---|
| committer | Eric W. Biederman <ebiederm@xmission.com> | 2015-07-01 17:36:41 +0200 |
| commit | eb6d38d5427b3ad42f5268da0f1dd31bb0af1264 (patch) | |
| tree | 1fb54abb73c369444d6b84f12e3eff670c0a5d64 /fs/proc/root.c | |
| parent | sysctl: Allow creating permanently empty directories that serve as mountpoints. (diff) | |
| download | linux-eb6d38d5427b3ad42f5268da0f1dd31bb0af1264.tar.xz linux-eb6d38d5427b3ad42f5268da0f1dd31bb0af1264.zip | |
proc: Allow creating permanently empty directories that serve as mount points
Add a new function proc_create_mount_point that when used to creates a
directory that can not be added to.
Add a new function is_empty_pde to test if a function is a mount
point.
Update the code to use make_empty_dir_inode when reporting
a permanently empty directory to the vfs.
Update the code to not allow adding to permanently empty directories.
Update /proc/openprom and /proc/fs/nfsd to be permanently empty directories.
Cc: stable@vger.kernel.org
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Diffstat (limited to 'fs/proc/root.c')
| -rw-r--r-- | fs/proc/root.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/proc/root.c b/fs/proc/root.c index 64e1ab64bde6..68feb0f70e63 100644 --- a/fs/proc/root.c +++ b/fs/proc/root.c @@ -179,10 +179,10 @@ void __init proc_root_init(void) #endif proc_mkdir("fs", NULL); proc_mkdir("driver", NULL); - proc_mkdir("fs/nfsd", NULL); /* somewhere for the nfsd filesystem to be mounted */ + proc_create_mount_point("fs/nfsd"); /* somewhere for the nfsd filesystem to be mounted */ #if defined(CONFIG_SUN_OPENPROMFS) || defined(CONFIG_SUN_OPENPROMFS_MODULE) /* just give it a mountpoint */ - proc_mkdir("openprom", NULL); + proc_create_mount_point("openprom"); #endif proc_tty_init(); proc_mkdir("bus", NULL); |