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authorMichael Pratt <mpratt@google.com>2020-08-20 13:28:43 -0700
committerAndrei Vagin <avagin@gmail.com>2020-09-09 17:53:10 -0700
commita3f446a86fed6f3f70daef91b7f7cb5db4ebd383 (patch)
treeee86101d771a7b838ad7d3ce02edae90a6f24018 /pkg/sentry/mm/syscalls.go
parente2c1084cc8eb52bdfda299df2386ba974c320d54 (diff)
Consistent precondition formatting
Our "Preconditions:" blocks are very useful to determine the input invariants, but they are bit inconsistent throughout the codebase, which makes them harder to read (particularly cases with 5+ conditions in a single paragraph). I've reformatted all of the cases to fit in simple rules: 1. Cases with a single condition are placed on a single line. 2. Cases with multiple conditions are placed in a bulleted list. This format has been added to the style guide. I've also mentioned "Postconditions:", though those are much less frequently used, and all uses already match this style. PiperOrigin-RevId: 327687465
Diffstat (limited to 'pkg/sentry/mm/syscalls.go')
-rw-r--r--pkg/sentry/mm/syscalls.go9
1 files changed, 6 insertions, 3 deletions
diff --git a/pkg/sentry/mm/syscalls.go b/pkg/sentry/mm/syscalls.go
index e74d4e1c1..4c9a575e7 100644
--- a/pkg/sentry/mm/syscalls.go
+++ b/pkg/sentry/mm/syscalls.go
@@ -166,7 +166,9 @@ func (mm *MemoryManager) MMap(ctx context.Context, opts memmap.MMapOpts) (userme
// populateVMA obtains pmas for addresses in ar in the given vma, and maps them
// into mm.as if it is active.
//
-// Preconditions: mm.mappingMu must be locked. vseg.Range().IsSupersetOf(ar).
+// Preconditions:
+// * mm.mappingMu must be locked.
+// * vseg.Range().IsSupersetOf(ar).
func (mm *MemoryManager) populateVMA(ctx context.Context, vseg vmaIterator, ar usermem.AddrRange, precommit bool) {
if !vseg.ValuePtr().effectivePerms.Any() {
// Linux doesn't populate inaccessible pages. See
@@ -208,8 +210,9 @@ func (mm *MemoryManager) populateVMA(ctx context.Context, vseg vmaIterator, ar u
// preferable to populateVMA since it unlocks mm.mappingMu before performing
// expensive operations that don't require it to be locked.
//
-// Preconditions: mm.mappingMu must be locked for writing.
-// vseg.Range().IsSupersetOf(ar).
+// Preconditions:
+// * mm.mappingMu must be locked for writing.
+// * vseg.Range().IsSupersetOf(ar).
//
// Postconditions: mm.mappingMu will be unlocked.
func (mm *MemoryManager) populateVMAAndUnlock(ctx context.Context, vseg vmaIterator, ar usermem.AddrRange, precommit bool) {