The patch titled unix98 allocated_ptys_lock semaphore to mutex has been added to the -mm tree. Its filename is unix98-allocated_ptys_lock-semaphore-to-mutex.patch *** Remember to use Documentation/SubmitChecklist when testing your code *** See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find out what to do about this ------------------------------------------------------ Subject: unix98 allocated_ptys_lock semaphore to mutex From: Daniel Walker <dwalker@xxxxxxxxxx> Convert the unix98 allocated_ptys_lock to a mutex. Signed-off-by: Daniel Walker <dwalker@xxxxxxxxxx> Acked-by: Ingo Molnar <mingo@xxxxxxx> Cc: "H. Peter Anvin" <hpa@xxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- drivers/char/tty_io.c | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) diff -puN drivers/char/tty_io.c~unix98-allocated_ptys_lock-semaphore-to-mutex drivers/char/tty_io.c --- a/drivers/char/tty_io.c~unix98-allocated_ptys_lock-semaphore-to-mutex +++ a/drivers/char/tty_io.c @@ -138,7 +138,7 @@ EXPORT_SYMBOL(tty_mutex); extern struct tty_driver *ptm_driver; /* Unix98 pty masters; for /dev/ptmx */ extern int pty_limit; /* Config limit on Unix98 ptys */ static DEFINE_IDR(allocated_ptys); -static DECLARE_MUTEX(allocated_ptys_lock); +static DEFINE_MUTEX(allocated_ptys_lock); static int ptmx_open(struct inode *, struct file *); #endif @@ -2571,9 +2571,9 @@ static void release_dev(struct file * fi #ifdef CONFIG_UNIX98_PTYS /* Make this pty number available for reallocation */ if (devpts) { - down(&allocated_ptys_lock); + mutex_lock(&allocated_ptys_lock); idr_remove(&allocated_ptys, idx); - up(&allocated_ptys_lock); + mutex_unlock(&allocated_ptys_lock); } #endif @@ -2737,24 +2737,24 @@ static int ptmx_open(struct inode * inod nonseekable_open(inode, filp); /* find a device that is not in use. */ - down(&allocated_ptys_lock); + mutex_lock(&allocated_ptys_lock); if (!idr_pre_get(&allocated_ptys, GFP_KERNEL)) { - up(&allocated_ptys_lock); + mutex_unlock(&allocated_ptys_lock); return -ENOMEM; } idr_ret = idr_get_new(&allocated_ptys, NULL, &index); if (idr_ret < 0) { - up(&allocated_ptys_lock); + mutex_unlock(&allocated_ptys_lock); if (idr_ret == -EAGAIN) return -ENOMEM; return -EIO; } if (index >= pty_limit) { idr_remove(&allocated_ptys, index); - up(&allocated_ptys_lock); + mutex_unlock(&allocated_ptys_lock); return -EIO; } - up(&allocated_ptys_lock); + mutex_unlock(&allocated_ptys_lock); mutex_lock(&tty_mutex); retval = init_dev(ptm_driver, index, &tty); @@ -2781,9 +2781,9 @@ out1: release_dev(filp); return retval; out: - down(&allocated_ptys_lock); + mutex_lock(&allocated_ptys_lock); idr_remove(&allocated_ptys, index); - up(&allocated_ptys_lock); + mutex_unlock(&allocated_ptys_lock); return retval; } #endif _ Patches currently in -mm which might be from dwalker@xxxxxxxxxx are drivers-char-tty_ioc-remove-pty_sem.patch drivers-isdn-i4l-isdn_ttyc-remove-write_sem.patch unix98-allocated_ptys_lock-semaphore-to-mutex.patch isapnp-driver-semaphore-to-mutex.patch isapnp-driver-semaphore-to-mutex-fix.patch isapnp-driver-semaphore-to-mutex-fix-fix.patch profile-likely-unlikely-macros.patch profile-likely-unlikely-macros-fix.patch - To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html