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authorSteven Whitehouse <swhiteho@redhat.com>2006-08-04 15:41:22 -0400
committerSteven Whitehouse <swhiteho@redhat.com>2006-08-04 15:41:22 -0400
commit59a1cc6bdabf5ed148b48808ad1a418d87f5e6bf (patch)
tree6463071a09201040267702e895d63359e62c393d /fs/gfs2/locking/dlm
parent899bb264507cfed83922bf14cd66a073494601ba (diff)
[GFS2] Fix lock ordering bug in page fault path
Mmapped files were able to trigger a lock ordering bug. Private maps do not need to take the glock so early on. Shared maps do unfortunately, however we can get around that by adding a flag into the flags for the struct gfs2_file. This only works because we are taking an exclusive lock at this point, so we know that nobody else can be racing with us. Fixes Red Hat bugzilla: #201196 Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
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