diff options
| author | Mark Brown <broonie@kernel.org> | 2016-03-18 09:45:54 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2016-03-18 09:45:54 +0000 |
| commit | ddbcfcba5fdc56f30e4d02c3bac8cf965502cece (patch) | |
| tree | 235f05605003ed8dc119ead980cf86157eb695e8 /fs/devpts/inode.c | |
| parent | dfabba9c3737ce7a2574dcf58940f038e536e233 (diff) | |
| parent | 62e21959dc6f25c5fce0c1a0934e4a9d982bf99b (diff) | |
Merge tag 'v4.4.5' into linux-linaro-lsk-v4.4
This is the 4.4.5 stable release
# gpg: Signature made Wed 09 Mar 2016 23:36:03 GMT using RSA key ID 6092693E
# gpg: Good signature from "Greg Kroah-Hartman (Linux kernel stable release signing key) <greg@kroah.com>"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 647F 2865 4894 E3BD 4571 99BE 38DB BDC8 6092 693E
Diffstat (limited to 'fs/devpts/inode.c')
| -rw-r--r-- | fs/devpts/inode.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/fs/devpts/inode.c b/fs/devpts/inode.c index c35ffdc12bba..706de324f2a6 100644 --- a/fs/devpts/inode.c +++ b/fs/devpts/inode.c @@ -575,6 +575,26 @@ void devpts_kill_index(struct inode *ptmx_inode, int idx) mutex_unlock(&allocated_ptys_lock); } +/* + * pty code needs to hold extra references in case of last /dev/tty close + */ + +void devpts_add_ref(struct inode *ptmx_inode) +{ + struct super_block *sb = pts_sb_from_inode(ptmx_inode); + + atomic_inc(&sb->s_active); + ihold(ptmx_inode); +} + +void devpts_del_ref(struct inode *ptmx_inode) +{ + struct super_block *sb = pts_sb_from_inode(ptmx_inode); + + iput(ptmx_inode); + deactivate_super(sb); +} + /** * devpts_pty_new -- create a new inode in /dev/pts/ * @ptmx_inode: inode of the master |