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GFS2: remove dcache entries for remote deleted inodes

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When a file is deleted from a gfs2 filesystem on one node, a dcache
entry for it may still exist on other nodes in the cluster. If this
happens, gfs2 will be unable to free this file on disk. Because of this,
it's possible to have a gfs2 filesystem with no files on it and no free
space. With this patch, when a node receives a callback notifying it
that the file is being deleted on another node, it schedules a new
workqueue thread to remove the file's dcache entry.

Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
This commit is contained in:
Benjamin Marzinski
2009-07-23 18:52:34 -05:00
committed by Steven Whitehouse
parent 6b94617024
commit b94a170e96
5 changed files with 65 additions and 5 deletions
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fs/gfs2/super.c
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@@ -691,6 +691,7 @@ static int gfs2_make_fs_ro(struct gfs2_sbd *sdp)
struct gfs2_holder t_gh;
int error;
flush_workqueue(gfs2_delete_workqueue);
gfs2_quota_sync(sdp);
gfs2_statfs_sync(sdp);