xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Split buffer's b_fspriv field

Browse Source 
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>
This commit is contained in:
Carlos Maiolino
2018-01-24 13:38:48 -08:00
committed by Darrick J. Wong
parent 70a2065533
commit fb1755a645
18 changed files with 104 additions and 86 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
fs/xfs/libxfs/xfs_dir2_leaf.c
View File

@@ -208,7 +208,7 @@ __write_verify(
uint16_t magic)
{
struct xfs_mount *mp = bp->b_target->bt_mount;
struct xfs_buf_log_item *bip = bp->b_fspriv;
struct xfs_buf_log_item *bip = bp->b_log_item;
struct xfs_dir3_leaf_hdr *hdr3 = bp->b_addr;
xfs_failaddr_t fa;