diff options
Diffstat (limited to 'sys/fs/fifofs/fifo_vnops.c')
| -rw-r--r-- | sys/fs/fifofs/fifo_vnops.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/sys/fs/fifofs/fifo_vnops.c b/sys/fs/fifofs/fifo_vnops.c index a3e8179..e544bba 100644 --- a/sys/fs/fifofs/fifo_vnops.c +++ b/sys/fs/fifofs/fifo_vnops.c @@ -137,7 +137,7 @@ fifo_open(ap) struct thread *td; struct fifoinfo *fip; struct pipe *fpipe; - int error; + int error, stops_deferred; vp = ap->a_vp; fp = ap->a_fp; @@ -188,8 +188,11 @@ fifo_open(ap) if ((ap->a_mode & O_NONBLOCK) == 0) { if ((ap->a_mode & FREAD) && fip->fi_writers == 0) { VOP_UNLOCK(vp, 0); + stops_deferred = sigallowstop(); error = msleep(&fip->fi_readers, PIPE_MTX(fpipe), PDROP | PCATCH | PSOCK, "fifoor", 0); + if (stops_deferred) + sigdeferstop(); vn_lock(vp, LK_EXCLUSIVE | LK_RETRY); if (error) { fip->fi_readers--; @@ -212,8 +215,11 @@ fifo_open(ap) } if ((ap->a_mode & FWRITE) && fip->fi_readers == 0) { VOP_UNLOCK(vp, 0); + stops_deferred = sigallowstop(); error = msleep(&fip->fi_writers, PIPE_MTX(fpipe), PDROP | PCATCH | PSOCK, "fifoow", 0); + if (stops_deferred) + sigdeferstop(); vn_lock(vp, LK_EXCLUSIVE | LK_RETRY); if (error) { fip->fi_writers--; |
