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-rw-r--r--fs/open.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/open.c b/fs/open.c
index 9d64679..36662d0 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -725,6 +725,12 @@ static int do_dentry_open(struct file *f,
}
if ((f->f_mode & (FMODE_READ | FMODE_WRITE)) == FMODE_READ)
i_readcount_inc(inode);
+ if ((f->f_mode & FMODE_READ) &&
+ likely(f->f_op->read || f->f_op->aio_read || f->f_op->read_iter))
+ f->f_mode |= FMODE_CAN_READ;
+ if ((f->f_mode & FMODE_WRITE) &&
+ likely(f->f_op->write || f->f_op->aio_write || f->f_op->write_iter))
+ f->f_mode |= FMODE_CAN_WRITE;
f->f_flags &= ~(O_CREAT | O_EXCL | O_NOCTTY | O_TRUNC);
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