ext4: add ext4-specific kludge to avoid an oops after the disk disappears
The del_gendisk() function uninitializes the disk-specific data
structures, including the bdi structure, without telling anyone
else. Once this happens, any attempt to call mark_buffer_dirty()
(for example, by ext4_commit_super), will cause a kernel OOPS.
Fix this for now until we can fix things in an architecturally correct
way.
Signed-off-by:
"Theodore Ts'o" <tytso@mit.edu>
parent
02fac129
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