diff options
| author | Carlos Maiolino <cmaiolino@redhat.com> | 2018-01-24 13:38:48 -0800 |
|---|---|---|
| committer | Darrick J. Wong <darrick.wong@oracle.com> | 2018-01-29 07:27:22 -0800 |
| commit | fb1755a645972ed096047583600838f6cf414e2b (patch) | |
| tree | b76240904f7da41883a3d5ebb959752bf60827e2 /fs/xfs/xfs_buf.h | |
| parent | 70a20655339ab90866300e174a47631df49a018a (diff) | |
Split buffer's b_fspriv field
By splitting the b_fspriv field into two different fields (b_log_item
and b_li_list). It's possible to get rid of an old ABI workaround, by
using the new b_log_item field to store xfs_buf_log_item separated from
the log items attached to the buffer, which will be linked in the new
b_li_list field.
This way, there is no more need to reorder the log items list to place
the buf_log_item at the beginning of the list, simplifying a bit the
logic to handle buffer IO.
This also opens the possibility to change buffer's log items list into a
proper list_head.
b_log_item field is still defined as a void *, because it is still used
by the log buffers to store xlog_in_core structures, and there is no
need to add an extra field on xfs_buf just for xlog_in_core.
Signed-off-by: Carlos Maiolino <cmaiolino@redhat.com>
Reviewed-by: Bill O'Donnell <billodo@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
[darrick: minor style changes]
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Diffstat (limited to 'fs/xfs/xfs_buf.h')
| -rw-r--r-- | fs/xfs/xfs_buf.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/xfs/xfs_buf.h b/fs/xfs/xfs_buf.h index 5b5b4861c729..6fcba7536d7e 100644 --- a/fs/xfs/xfs_buf.h +++ b/fs/xfs/xfs_buf.h @@ -176,7 +176,8 @@ typedef struct xfs_buf { struct workqueue_struct *b_ioend_wq; /* I/O completion wq */ xfs_buf_iodone_t b_iodone; /* I/O completion function */ struct completion b_iowait; /* queue for I/O waiters */ - void *b_fspriv; + void *b_log_item; + struct xfs_log_item *b_li_list; struct xfs_trans *b_transp; struct page **b_pages; /* array of page pointers */ struct page *b_page_array[XB_PAGES]; /* inline pages */ |