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-rw-r--r--fs/splice.c24
1 files changed, 6 insertions, 18 deletions
diff --git a/fs/splice.c b/fs/splice.c
index 8f1dfaecc8f0..ce2f02579e35 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -1311,18 +1311,6 @@ long do_splice_direct(struct file *in, loff_t *ppos, struct file *out,
1311static int splice_pipe_to_pipe(struct pipe_inode_info *ipipe, 1311static int splice_pipe_to_pipe(struct pipe_inode_info *ipipe,
1312 struct pipe_inode_info *opipe, 1312 struct pipe_inode_info *opipe,
1313 size_t len, unsigned int flags); 1313 size_t len, unsigned int flags);
1314/*
1315 * After the inode slimming patch, i_pipe/i_bdev/i_cdev share the same
1316 * location, so checking ->i_pipe is not enough to verify that this is a
1317 * pipe.
1318 */
1319static inline struct pipe_inode_info *pipe_info(struct inode *inode)
1320{
1321 if (S_ISFIFO(inode->i_mode))
1322 return inode->i_pipe;
1323
1324 return NULL;
1325}
1326 1314
1327/* 1315/*
1328 * Determine where to splice to/from. 1316 * Determine where to splice to/from.
@@ -1336,8 +1324,8 @@ static long do_splice(struct file *in, loff_t __user *off_in,
1336 loff_t offset, *off; 1324 loff_t offset, *off;
1337 long ret; 1325 long ret;
1338 1326
1339 ipipe = pipe_info(in->f_path.dentry->d_inode); 1327 ipipe = get_pipe_info(in);
1340 opipe = pipe_info(out->f_path.dentry->d_inode); 1328 opipe = get_pipe_info(out);
1341 1329
1342 if (ipipe && opipe) { 1330 if (ipipe && opipe) {
1343 if (off_in || off_out) 1331 if (off_in || off_out)
@@ -1555,7 +1543,7 @@ static long vmsplice_to_user(struct file *file, const struct iovec __user *iov,
1555 int error; 1543 int error;
1556 long ret; 1544 long ret;
1557 1545
1558 pipe = pipe_info(file->f_path.dentry->d_inode); 1546 pipe = get_pipe_info(file);
1559 if (!pipe) 1547 if (!pipe)
1560 return -EBADF; 1548 return -EBADF;
1561 1549
@@ -1642,7 +1630,7 @@ static long vmsplice_to_pipe(struct file *file, const struct iovec __user *iov,
1642 }; 1630 };
1643 long ret; 1631 long ret;
1644 1632
1645 pipe = pipe_info(file->f_path.dentry->d_inode); 1633 pipe = get_pipe_info(file);
1646 if (!pipe) 1634 if (!pipe)
1647 return -EBADF; 1635 return -EBADF;
1648 1636
@@ -2022,8 +2010,8 @@ static int link_pipe(struct pipe_inode_info *ipipe,
2022static long do_tee(struct file *in, struct file *out, size_t len, 2010static long do_tee(struct file *in, struct file *out, size_t len,
2023 unsigned int flags) 2011 unsigned int flags)
2024{ 2012{
2025 struct pipe_inode_info *ipipe = pipe_info(in->f_path.dentry->d_inode); 2013 struct pipe_inode_info *ipipe = get_pipe_info(in);
2026 struct pipe_inode_info *opipe = pipe_info(out->f_path.dentry->d_inode); 2014 struct pipe_inode_info *opipe = get_pipe_info(out);
2027 int ret = -EINVAL; 2015 int ret = -EINVAL;
2028 2016
2029 /* 2017 /*