Now that we've moved the readdir hack to the nfsd code, we can
remove the local version from the XFS code.
Signed-off-by: David Woodhouse <[email protected]>
---
fs/xfs/linux-2.6/xfs_file.c | 128 -------------------------------------------
1 files changed, 0 insertions(+), 128 deletions(-)
diff --git a/fs/xfs/linux-2.6/xfs_file.c b/fs/xfs/linux-2.6/xfs_file.c
index 5f60363..1946b44 100644
--- a/fs/xfs/linux-2.6/xfs_file.c
+++ b/fs/xfs/linux-2.6/xfs_file.c
@@ -204,15 +204,6 @@ xfs_file_fsync(
return -xfs_fsync(XFS_I(dentry->d_inode));
}
-/*
- * Unfortunately we can't just use the clean and simple readdir implementation
- * below, because nfs might call back into ->lookup from the filldir callback
- * and that will deadlock the low-level btree code.
- *
- * Hopefully we'll find a better workaround that allows to use the optimal
- * version at least for local readdirs for 2.6.25.
- */
-#if 0
STATIC int
xfs_file_readdir(
struct file *filp,
@@ -244,125 +235,6 @@ xfs_file_readdir(
return -error;
return 0;
}
-#else
-
-struct hack_dirent {
- u64 ino;
- loff_t offset;
- int namlen;
- unsigned int d_type;
- char name[];
-};
-
-struct hack_callback {
- char *dirent;
- size_t len;
- size_t used;
-};
-
-STATIC int
-xfs_hack_filldir(
- void *__buf,
- const char *name,
- int namlen,
- loff_t offset,
- u64 ino,
- unsigned int d_type)
-{
- struct hack_callback *buf = __buf;
- struct hack_dirent *de = (struct hack_dirent *)(buf->dirent + buf->used);
- unsigned int reclen;
-
- reclen = ALIGN(sizeof(struct hack_dirent) + namlen, sizeof(u64));
- if (buf->used + reclen > buf->len)
- return -EINVAL;
-
- de->namlen = namlen;
- de->offset = offset;
- de->ino = ino;
- de->d_type = d_type;
- memcpy(de->name, name, namlen);
- buf->used += reclen;
- return 0;
-}
-
-STATIC int
-xfs_file_readdir(
- struct file *filp,
- void *dirent,
- filldir_t filldir)
-{
- struct inode *inode = filp->f_path.dentry->d_inode;
- xfs_inode_t *ip = XFS_I(inode);
- struct hack_callback buf;
- struct hack_dirent *de;
- int error;
- loff_t size;
- int eof = 0;
- xfs_off_t start_offset, curr_offset, offset;
-
- /*
- * Try fairly hard to get memory
- */
- buf.len = PAGE_CACHE_SIZE;
- do {
- buf.dirent = kmalloc(buf.len, GFP_KERNEL);
- if (buf.dirent)
- break;
- buf.len >>= 1;
- } while (buf.len >= 1024);
-
- if (!buf.dirent)
- return -ENOMEM;
-
- curr_offset = filp->f_pos;
- if (curr_offset == 0x7fffffff)
- offset = 0xffffffff;
- else
- offset = filp->f_pos;
-
- while (!eof) {
- unsigned int reclen;
-
- start_offset = offset;
-
- buf.used = 0;
- error = -xfs_readdir(ip, &buf, buf.len, &offset,
- xfs_hack_filldir);
- if (error || offset == start_offset) {
- size = 0;
- break;
- }
-
- size = buf.used;
- de = (struct hack_dirent *)buf.dirent;
- while (size > 0) {
- curr_offset = de->offset /* & 0x7fffffff */;
- if (filldir(dirent, de->name, de->namlen,
- curr_offset & 0x7fffffff,
- de->ino, de->d_type)) {
- goto done;
- }
-
- reclen = ALIGN(sizeof(struct hack_dirent) + de->namlen,
- sizeof(u64));
- size -= reclen;
- de = (struct hack_dirent *)((char *)de + reclen);
- }
- }
-
- done:
- if (!error) {
- if (size == 0)
- filp->f_pos = offset & 0x7fffffff;
- else if (de)
- filp->f_pos = curr_offset;
- }
-
- kfree(buf.dirent);
- return error;
-}
-#endif
STATIC int
xfs_file_mmap(
--
1.5.5.1
--
David Woodhouse Open Source Technology Centre
[email protected] Intel Corporation
On Sat, Aug 09, 2008 at 09:03:11PM +0100, David Woodhouse wrote:
> Now that we've moved the readdir hack to the nfsd code, we can
> remove the local version from the XFS code.
Looks good to me, I'm also throwig this into my local xfsqa queue.