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Avoid having to wait for dircache builds if shut down too soon

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When dircache scanning is happening in the background, the user
can shut down the device before it is complete. Then, reset_cache()
sets size to 0 before it is copied to last_size at the end of
build_volumes(). When saved last_size is zero, scanning happens in
the foreground during next startup.

Avoid shrinking the size if the build is suspended.

Change-Id: Ife133e0be0dc0dfd53a4de119f70dba014c7ee68
This commit is contained in:
Boris Gjenero 2017-03-08 22:38:09 -05:00 • committed by Michael Sevakis
parent 35d69c80a6
commit 05739efe8d
1 changed files with 6 additions and 4 deletions
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10
firmware/common/dircache.c
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@ -1884,10 +1884,12 @@ static void build_volumes(void)
dircache.reserve_used = reserve_used;
if (DIRCACHE_STUFFED(reserve_used))
dircache.last_size = 0; /* reset */
else if (dircache.size > dircache.last_size ||
dircache.last_size - dircache.size > DIRCACHE_RESERVE)
dircache.last_size = dircache.size;
dircache.last_size = 0; /* reset */
else if (dircache.size > dircache.last_size)
dircache.last_size = dircache.size; /* grow */
else if (!dircache_runinfo.suspended &&
dircache.last_size - dircache.size > DIRCACHE_RESERVE)
dircache.last_size = dircache.size; /* shrink if not suspended */
logf("Done, %ld KiB used", dircache.size / 1024);