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UBIFS: ensure UBIFS switches to read-only on error

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UBI transparently handles write errors by automatically copying
and remapping the affected eraseblock. If UBI is unable to do
that, for example its pool of eraseblocks reserved for bad block
handling is empty, then the error is propagated to UBIFS. UBIFS
must protect the media from falling into an inconsistent state
by immediately switching to read-only mode. In the case of log
updates, this was not being done.

Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com>
This commit is contained in:
Adrian Hunter 2008-07-18 17:56:37 +03:00 committed by Artem Bityutskiy
parent 16dfd804b4
commit 2fb42b11f6
1 changed files with 2 additions and 0 deletions
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2
fs/ubifs/log.c
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@ -317,6 +317,8 @@ int ubifs_add_bud_to_log(struct ubifs_info *c, int jhead, int lnum, int offs)
return 0;
out_unlock:
if (err != -EAGAIN)
ubifs_ro_mode(c, err);
mutex_unlock(&c->log_mutex);
kfree(ref);
kfree(bud);