[JFFS2] fix deadlock on error path

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When the MTD driver returns write failure, the following deadlock
occurs:

We are in __jffs2_flush_wbuf(), we hold &c->wbuf_sem. Write failure.
jffs2_wbuf_recover()->jffs2_reserve_space_gc()->jffs2_do_reserve_space()
->jffs2_erase_pending_blocks()->jffs2_flash_read()

and it tries to lock &c->wbuf_sem again. Deadlock.

Reported-by: Adrian Hunter <ext-adrian.hunter@nokia.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>

...

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Artem Bityutskiy 2007-03-21 11:07:05 +02:00 • committed by David Woodhouse

parent 4226b51037

commit b0afbbec49

1 changed files with 1 additions and 1 deletions

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fs/jffs2/erase.c

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