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Diffstat (limited to 'fs/pipe.c')
-rw-r--r--fs/pipe.c39
1 files changed, 19 insertions, 20 deletions
diff --git a/fs/pipe.c b/fs/pipe.c
index d2c45e14e6d8..0e0752ef2715 100644
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -726,11 +726,25 @@ pipe_poll(struct file *filp, poll_table *wait)
726 return mask; 726 return mask;
727} 727}
728 728
729static void put_pipe_info(struct inode *inode, struct pipe_inode_info *pipe)
730{
731 int kill = 0;
732
733 spin_lock(&inode->i_lock);
734 if (!--pipe->files) {
735 inode->i_pipe = NULL;
736 kill = 1;
737 }
738 spin_unlock(&inode->i_lock);
739
740 if (kill)
741 free_pipe_info(pipe);
742}
743
729static int 744static int
730pipe_release(struct inode *inode, struct file *file) 745pipe_release(struct inode *inode, struct file *file)
731{ 746{
732 struct pipe_inode_info *pipe = inode->i_pipe; 747 struct pipe_inode_info *pipe = file->private_data;
733 int kill = 0;
734 748
735 __pipe_lock(pipe); 749 __pipe_lock(pipe);
736 if (file->f_mode & FMODE_READ) 750 if (file->f_mode & FMODE_READ)
@@ -743,17 +757,9 @@ pipe_release(struct inode *inode, struct file *file)
743 kill_fasync(&pipe->fasync_readers, SIGIO, POLL_IN); 757 kill_fasync(&pipe->fasync_readers, SIGIO, POLL_IN);
744 kill_fasync(&pipe->fasync_writers, SIGIO, POLL_OUT); 758 kill_fasync(&pipe->fasync_writers, SIGIO, POLL_OUT);
745 } 759 }
746 spin_lock(&inode->i_lock);
747 if (!--pipe->files) {
748 inode->i_pipe = NULL;
749 kill = 1;
750 }
751 spin_unlock(&inode->i_lock);
752 __pipe_unlock(pipe); 760 __pipe_unlock(pipe);
753 761
754 if (kill) 762 put_pipe_info(inode, pipe);
755 free_pipe_info(pipe);
756
757 return 0; 763 return 0;
758} 764}
759 765
@@ -1014,7 +1020,6 @@ static int fifo_open(struct inode *inode, struct file *filp)
1014{ 1020{
1015 struct pipe_inode_info *pipe; 1021 struct pipe_inode_info *pipe;
1016 bool is_pipe = inode->i_sb->s_magic == PIPEFS_MAGIC; 1022 bool is_pipe = inode->i_sb->s_magic == PIPEFS_MAGIC;
1017 int kill = 0;
1018 int ret; 1023 int ret;
1019 1024
1020 filp->f_version = 0; 1025 filp->f_version = 0;
@@ -1130,15 +1135,9 @@ err_wr:
1130 goto err; 1135 goto err;
1131 1136
1132err: 1137err:
1133 spin_lock(&inode->i_lock);
1134 if (!--pipe->files) {
1135 inode->i_pipe = NULL;
1136 kill = 1;
1137 }
1138 spin_unlock(&inode->i_lock);
1139 __pipe_unlock(pipe); 1138 __pipe_unlock(pipe);
1140 if (kill) 1139
1141 free_pipe_info(pipe); 1140 put_pipe_info(inode, pipe);
1142 return ret; 1141 return ret;
1143} 1142}
1144 1143