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jbd: Check return value of __getblk()
authorNamhyung Kim <namhyung@gmail.com>
Wed, 13 Oct 2010 08:17:18 +0000 (17:17 +0900)
committerJan Kara <jack@suse.cz>
Wed, 27 Oct 2010 23:30:04 +0000 (01:30 +0200)
Fail journal creation if __getblk() returns NULL.  unlikely() is
added because it is called in a loop and we've been OK without
the check until now.

Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>

No differences found
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