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Bees: fix [-Werror=implicit-fallthrough=]

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In gcc 7+ warning: implicit-fallthrough has been added
In some places fallthrough is expectable, disable warning

Signed-off-by: Timofey Titovets <nefelim4ag@gmail.com>
This commit is contained in:
Timofey Titovets 2017-06-13 18:05:38 +03:00
parent 5a3f1be09e
commit 5350b0f113
2 changed files with 10 additions and 8 deletions
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17
lib/extentwalker.cc
View File

@ -520,25 +520,26 @@ namespace crucible {
auto type = call_btrfs_get(btrfs_stack_file_extent_type, i.m_data); auto type = call_btrfs_get(btrfs_stack_file_extent_type, i.m_data);
off_t len = -1; off_t len = -1;
switch (type) { switch (type) {
default: default:
cerr << "Unhandled file extent type " << type << " in root " << m_tree_id << " ino " << m_stat.st_ino << endl; cerr << "Unhandled file extent type " << type << " in root " << m_tree_id << " ino " << m_stat.st_ino << endl;
break; break;
case BTRFS_FILE_EXTENT_INLINE: case BTRFS_FILE_EXTENT_INLINE:
len = ranged_cast<off_t>(call_btrfs_get(btrfs_stack_file_extent_ram_bytes, i.m_data)); len = ranged_cast<off_t>(call_btrfs_get(btrfs_stack_file_extent_ram_bytes, i.m_data));
e.m_flags |= FIEMAP_EXTENT_DATA_INLINE | FIEMAP_EXTENT_NOT_ALIGNED; e.m_flags |= FIEMAP_EXTENT_DATA_INLINE | FIEMAP_EXTENT_NOT_ALIGNED;
// Inline extents are never obscured, so don't bother filling in m_physical_len, etc. // Inline extents are never obscured, so don't bother filling in m_physical_len, etc.
break; break;
case BTRFS_FILE_EXTENT_PREALLOC: case BTRFS_FILE_EXTENT_PREALLOC:
e.m_flags |= Extent::PREALLOC; e.m_flags |= Extent::PREALLOC;
case BTRFS_FILE_EXTENT_REG: { // fallthrough
case BTRFS_FILE_EXTENT_REG: {
e.m_physical = call_btrfs_get(btrfs_stack_file_extent_disk_bytenr, i.m_data); e.m_physical = call_btrfs_get(btrfs_stack_file_extent_disk_bytenr, i.m_data);
// This is the length of the full extent (decompressed) // This is the length of the full extent (decompressed)
off_t ram = ranged_cast<off_t>(call_btrfs_get(btrfs_stack_file_extent_ram_bytes, i.m_data)); off_t ram = ranged_cast<off_t>(call_btrfs_get(btrfs_stack_file_extent_ram_bytes, i.m_data));
// This is the length of the part of the extent appearing in the file (decompressed) // This is the length of the part of the extent appearing in the file (decompressed)
len = ranged_cast<off_t>(call_btrfs_get(btrfs_stack_file_extent_num_bytes, i.m_data)); len = ranged_cast<off_t>(call_btrfs_get(btrfs_stack_file_extent_num_bytes, i.m_data));
// This is the offset from start of on-disk extent to the part we see in the file (decompressed) // This is the offset from start of on-disk extent to the part we see in the file (decompressed)
// May be negative due to the kind of bug we're stuck with forever, so no cast range check // May be negative due to the kind of bug we're stuck with forever, so no cast range check

1
src/bees-roots.cc
View File

@ -768,6 +768,7 @@ BeesCrawl::fetch_extents()
break; break;
case BTRFS_FILE_EXTENT_PREALLOC: case BTRFS_FILE_EXTENT_PREALLOC:
BEESCOUNT(crawl_prealloc); BEESCOUNT(crawl_prealloc);
// fallthrough
case BTRFS_FILE_EXTENT_REG: { case BTRFS_FILE_EXTENT_REG: {
auto physical = call_btrfs_get(btrfs_stack_file_extent_disk_bytenr, i.m_data); auto physical = call_btrfs_get(btrfs_stack_file_extent_disk_bytenr, i.m_data);
auto ram = call_btrfs_get(btrfs_stack_file_extent_ram_bytes, i.m_data); auto ram = call_btrfs_get(btrfs_stack_file_extent_ram_bytes, i.m_data);