ext4: add ext4-specific kludge to avoid an oops after the disk disappears

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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>

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This commit is contained in:

Theodore Ts'o 2011-09-09 18:28:51 -04:00

parent 02fac1297e

commit 7c2e70879f

1 changed files with 17 additions and 1 deletions

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fs/ext4/super.c

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