Konstantin Belousov be913821af The softdep_setup_freeblocks() adds worklist items before ... deallocate_dependencies() is done. This opens a race between softdep thread and the thread that does the truncation: A write of the indirect block causes the freeblks to become ALLCOMPLETE while softdep_setup_freeblocks() dropped softdep lock. And then, softdep_disk_write_complete() would reassign the workitem to the mount point worklist, causing premature processing of the workitem, or journal write exhaust the fb_jfreeblkhd and handle_written_jfreeblk does the same reassign. indir_trunc() then would find the indirect block that is locked (with lock owned by kernel) but without any dependencies, causing it to hang in getblk() waiting for buffer lock. Do not mark freeblks as DEPCOMPLETE until deallocate_dependencies() finished. Analyzed, suggested and reviewed by: jeff Tested by: pho		2010-11-11 11:54:01 +00:00
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ffs	The softdep_setup_freeblocks() adds worklist items before	2010-11-11 11:54:01 +00:00
ufs	Remove unused includes of <sys/mutex.h> and <machine/mutex.h>.	2010-11-09 20:41:10 +00:00