tequilaOS/platform_system_core
2
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

Merge "Enhance checkpoint=disable GC threshold fallback mechanism"

Browse source
This commit is contained in:
David Anderson 2021-07-30 17:12:50 +00:00 committed by Gerrit Code Review
commit 2ed2f814fa
1 changed files with 12 additions and 6 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

18
fs_mgr/fs_mgr.cpp
View file

@ -790,20 +790,26 @@ static int __mount(const std::string& source, const std::string& target, const F
int save_errno = 0;
int gc_allowance = 0;
std::string opts;
std::string checkpoint_opts;
bool try_f2fs_gc_allowance = is_f2fs(entry.fs_type) && entry.fs_checkpoint_opts.length() > 0;
bool try_f2fs_fallback = false;
Timer t;
do {
if (save_errno == EINVAL && try_f2fs_gc_allowance) {
PINFO << "Kernel does not support checkpoint=disable:[n]%, trying without.";
if (save_errno == EINVAL && (try_f2fs_gc_allowance || try_f2fs_fallback)) {
PINFO << "Kernel does not support " << checkpoint_opts << ", trying without.";
try_f2fs_gc_allowance = false;
// Attempt without gc allowance before dropping.
try_f2fs_fallback = !try_f2fs_fallback;
}
if (try_f2fs_gc_allowance) {
opts = entry.fs_options + entry.fs_checkpoint_opts + ":" +
std::to_string(gc_allowance) + "%";
checkpoint_opts = entry.fs_checkpoint_opts + ":" + std::to_string(gc_allowance) + "%";
} else if (try_f2fs_fallback) {
checkpoint_opts = entry.fs_checkpoint_opts;
} else {
opts = entry.fs_options;
checkpoint_opts = "";
}
opts = entry.fs_options + checkpoint_opts;
if (save_errno == EAGAIN) {
PINFO << "Retrying mount (source=" << source << ",target=" << target
<< ",type=" << entry.fs_type << ", gc_allowance=" << gc_allowance << "%)=" << ret
@ -814,7 +820,7 @@ static int __mount(const std::string& source, const std::string& target, const F
save_errno = errno;
if (try_f2fs_gc_allowance) gc_allowance += 10;
} while ((ret && save_errno == EAGAIN && gc_allowance <= 100) ||
(ret && save_errno == EINVAL && try_f2fs_gc_allowance));
(ret && save_errno == EINVAL && (try_f2fs_gc_allowance || try_f2fs_fallback)));
const char* target_missing = "";
const char* source_missing = "";
if (save_errno == ENOENT) {