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[GFS2] Get superblock a different way 

The mapping may be NULL by the time the I/O has completed, so
we now get the superblock by a different route (via the bd and glock)
to avoid this problem.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Cc: Wendy Cheng <wcheng@redhat.com>
This commit is contained in:
Steven Whitehouse 2007-09-26 09:39:31 +01:00
parent 891ba6d4a5
commit 5a60c532c9
1 changed files with 2 additions and 1 deletions
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3
fs/gfs2/log.c
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@ -513,7 +513,8 @@ struct buffer_head *gfs2_log_get_buf(struct gfs2_sbd *sdp)
static void gfs2_fake_write_endio(struct buffer_head *bh, int uptodate)
{
struct buffer_head *real_bh = bh->b_private;
struct gfs2_sbd *sdp = GFS2_SB(real_bh->b_page->mapping->host);
struct gfs2_bufdata *bd = real_bh->b_private;
struct gfs2_sbd *sdp = bd->bd_gl->gl_sbd;
end_buffer_write_sync(bh, uptodate);
free_buffer_head(bh);