Hi,

On 20/10/14 17:37, Bob Peterson wrote:
Before this patch, whenever a struct file (opened to allow writes) was
closed, the multi-block reservation structure associated with the inode
was deleted. That's a problem, especially when there are multiple writers.
Applications that do open-write-close will suffer from greater levels
of fragmentation and need to re-do work to perform write operations.
This patch removes the reservation delete from the file close code so
that they're more persistent until the inode is deleted.
---
  fs/gfs2/file.c | 7 -------
  1 file changed, 7 deletions(-)
This doesn't seem like a good plan. If you run something like untar, does that now leave gaps in the allocations? If there are applications which are going open/write/close in a loop, then it seems like it is the application that needs to be changed, rather than the filesystem,

Steve.

diff --git a/fs/gfs2/file.c b/fs/gfs2/file.c
index 7f4ed3d..2976019 100644
--- a/fs/gfs2/file.c
+++ b/fs/gfs2/file.c
@@ -616,15 +616,8 @@ static int gfs2_open(struct inode *inode, struct file 
*file)
static int gfs2_release(struct inode *inode, struct file *file)
  {
-       struct gfs2_inode *ip = GFS2_I(inode);
-
        kfree(file->private_data);
        file->private_data = NULL;
-
-       if (!(file->f_mode & FMODE_WRITE))
-               return 0;
-
-       gfs2_rs_delete(ip, &inode->i_writecount);
        return 0;
  }

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