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-rw-r--r--mm/fadvise.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/mm/fadvise.c b/mm/fadvise.c
index 5f19e87..d257c89 100644
--- a/mm/fadvise.c
+++ b/mm/fadvise.c
@@ -37,6 +37,11 @@ asmlinkage long sys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice)
if (!file)
return -EBADF;
+ if (S_ISFIFO(file->f_dentry->d_inode->i_mode)) {
+ ret = -ESPIPE;
+ goto out;
+ }
+
mapping = file->f_mapping;
if (!mapping || len < 0) {
ret = -EINVAL;
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