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Revert "fuse: require /dev/fuse reads to have enough buffer capacity" 

This reverts commit d4b13963f2.

The commit introduced a regression in glusterfs-fuse.

Reported-by: Sander Eikelenboom <linux@eikelenboom.it>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
hifive-unleashed-5.2
Miklos Szeredi 2019-06-11 13:35:22 +02:00
parent d1fdb6d8f6
commit 766741fcaa
1 changed files with 0 additions and 10 deletions
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10
fs/fuse/dev.c
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@ -1317,16 +1317,6 @@ static ssize_t fuse_dev_do_read(struct fuse_dev *fud, struct file *file,
unsigned reqsize;
unsigned int hash;
/*
* Require sane minimum read buffer - that has capacity for fixed part
* of any request header + negotated max_write room for data. If the
* requirement is not satisfied return EINVAL to the filesystem server
* to indicate that it is not following FUSE server/client contract.
* Don't dequeue / abort any request.
*/
if (nbytes < max_t(size_t, FUSE_MIN_READ_BUFFER, 4096 + fc->max_write))
return -EINVAL;
restart:
spin_lock(&fiq->waitq.lock);
err = -EAGAIN;