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author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-02-14 22:36:04 (GMT) |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-02-14 22:36:04 (GMT) |
commit | 249f3c4fe4fdef159d3f9b3f7a6c41a92103c860 (patch) | |
tree | 58abfec8444741fd3bd403a908be50c4f63d4842 /fs/devpts/inode.c | |
parent | 54573c4a073ff510d028f423ed3074573c7d9437 (diff) | |
parent | 18558cae0272f8fd9647e69d3fec1565a7949865 (diff) | |
download | linux-249f3c4fe4fdef159d3f9b3f7a6c41a92103c860.tar.xz |
Merge 4.5-rc4 into tty-next
We want the fixes in here, and this resolves a merge error in tty_io.c
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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 1f107fd..655f21f 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 |