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Subject[PATCH 6/7] LSEEK: NFS: Drop unnecessary locking in llseek
Date
From: Andi Kleen <ak@linux.intel.com>

This makes NFS follow the standard generic_file_llseek locking scheme.

Cc: Trond.Myklebust@netapp.com
Signed-off-by: Andi Kleen <ak@linux.intel.com>
---
fs/nfs/file.c | 11 ++---------
1 files changed, 2 insertions(+), 9 deletions(-)
diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index 12623ab..91c01f0 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -180,8 +180,6 @@ force_reval:

static loff_t nfs_file_llseek(struct file *filp, loff_t offset, int origin)
{
- loff_t loff;
-
dprintk("NFS: llseek file(%s/%s, %lld, %d)\n",
filp->f_path.dentry->d_parent->d_name.name,
filp->f_path.dentry->d_name.name,
@@ -197,14 +195,9 @@ static loff_t nfs_file_llseek(struct file *filp, loff_t offset, int origin)
int retval = nfs_revalidate_file_size(inode, filp);
if (retval < 0)
return (loff_t)retval;
+ }

- /* AK: should drop this lock. Unlikely to be needed. */
- spin_lock(&inode->i_lock);
- loff = generic_file_llseek(filp, offset, origin);
- spin_unlock(&inode->i_lock);
- } else
- loff = generic_file_llseek(filp, offset, origin);
- return loff;
+ return generic_file_llseek(filp, offset, origin);
}

/*
--
1.7.4.4


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