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..., and then check whether or not it is too large to fit into size_t before casting it. --- filters/cache/cache.c | 13 ++++++++++--- filters/cow/cow.c | 13 ++++++++++--- 2 files changed, 20 insertions(+), 6 deletions(-) diff --git a/filters/cache/cache.c b/filters/cache/cache.c index 7410f0d..9473f2c 100644 --- a/filters/cache/cache.c +++ b/filters/cache/cache.c @@ -72,7 +72,7 @@ static int fd = -1; static uint8_t *bitmap; /* Size of the bitmap in bytes. */ -static uint64_t bm_size; +static size_t bm_size; enum bm_entry { BLOCK_NOT_CACHED = 0, @@ -167,7 +167,14 @@ blk_set_size (uint64...

...= plugin_dump_fields, .config = plugin_config, .config_complete = plugin_config_complete, - .errno_is_preserved = plugin_errno_is_preserved, .open = plugin_open, .prepare = plugin_prepare, .finalize = plugin_finalize, diff --git a/filters/cache/cache.c b/filters/cache/cache.c index 9473f2c..2ae6f01 100644 --- a/filters/cache/cache.c +++ b/filters/cache/cache.c @@ -292,6 +292,7 @@ blk_writethrough (struct nbdkit_next_ops *next_ops, void *nxdata, uint64_t blknum, const uint8_t *block) { off_t offset = blknum * BLKSIZE; + int r; nbdkit_debug ("cache: blk...

Here's what I'm currently playing with; I'm not ready to commit anything until I rebase my FUA work on top of this, as I only want to break filter ABI once between releases. Eric Blake (2): backend: Rework internal/filter error return semantics filters: Add log filter TODO | 2 - docs/nbdkit-filter.pod | 84 +++++++-- docs/nbdkit.pod

Since v1: add the blocksize filter, add testsuite coverage of the log filter, several fixes to the log filter based on what adding tests revealed I'm still working on FUA flag support patches on top of this; the patches should all be committed in the same release, as we want to minimize the number of releases that cause a filter ABI/API bump Eric Blake (3): backend: Rework internal/filter

After more than a month since v2 [1], I've finally got my FUA support series polished. This is all of my outstanding patches, even though some of them were originally posted in separate threads from the original FUA post [2], [3] [1] https://www.redhat.com/archives/libguestfs/2018-January/msg00113.html [2] https://www.redhat.com/archives/libguestfs/2018-January/msg00219.html [3]