If the number of deletes in progress is getting too high, newdirrem()
requests the syncer to flush faster, and in some cases will block to
prevent deletes accumulating faster than the disk can service them.
The syncer will try to lock vnodes that the remover holds locked, leading
to the syncer and remover proceeding in lockstep and making very little
overall forward progress.
Put a hook into ufs_rmdir() and ufs_remove() so that the softdep code
can pace itself without holding vnode locks if the number of deletes is
running out of control.
it can be used to clear the work queue.
Cleanup ffs_sync() which did not synchronously wait when MNT_WAIT
was specified. Clear the work queue when MNT_WAIT is specified.
Result is a clean on-disk file system after ffs_sync(.., MNT_WAIT, ..)
From FreeBSD.
be inserted into ktrace records. The general change has been to replace
"struct proc *" with "struct lwp *" in various function prototypes, pass
the lwp through and use l_proc to get the process pointer when needed.
Bump the kernel rev up to 1.6V
64 bit block pointers, extended attribute storage, and a few
other things.
This commit does not yet include the code to manipulate the extended
storage (for e.g. ACLs), this will be done later.
Originally written by Kirk McKusick and Network Associates Laboratories for
FreeBSD.
from Kirk McKusick. They implement taking pending block/inode frees
into account for the sake of correct statfs() numbers, and adding
a new softdep type (newdirblk) to correctly handle newly allocated
directory blocks.
Minor additional changes: 1) swap the newly introduced fs_pendinginodes
and fs_pendingblock fields in ffs_sb_swap, and 2) declare lkt_held
in the debug version of the softdep lock structure volatile, as it
can be modified from interrupt context #ifdef DEBUG.
default, as the copyright on the main file (ffs_softdep.c) is such
that is has been put into gnusrc. options SOFTDEP will pull this
in. This code also contains the trickle syncer.
Bump version number to 1.4O
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