lustre: don't need to lock inode in directory lseek

Note that lustre has its private mutex protecting directory pagecache;
if they ever remove it, they'll need to be careful with PageChecked()
use.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --git a/drivers/staging/lustre/lustre/llite/dir.c b/drivers/staging/lustre/lustre/llite/dir.c
index e4c8288..7a0a67f 100644 (file)
--- a/drivers/staging/lustre/lustre/llite/dir.c
+++ b/drivers/staging/lustre/lustre/llite/dir.c
@@ -1865,7 +1865,6 @@ static loff_t ll_dir_seek(struct file *file, loff_t offset, int origin)
        int api32 = ll_need_32bit_api(sbi);
        loff_t ret = -EINVAL;
 
-       inode_lock(inode);
        switch (origin) {
        case SEEK_SET:
                break;
@@ -1903,7 +1902,6 @@ static loff_t ll_dir_seek(struct file *file, loff_t offset, int origin)
        goto out;
 
 out:
-       inode_unlock(inode);
        return ret;
 }
 
@@ -1922,7 +1920,7 @@ const struct file_operations ll_dir_operations = {
        .open     = ll_dir_open,
        .release  = ll_dir_release,
        .read     = generic_read_dir,
-       .iterate  = ll_readdir,
+       .iterate_shared  = ll_readdir,
        .unlocked_ioctl   = ll_dir_ioctl,
        .fsync    = ll_fsync,
 };