Merge "Set GC threshold when mounting with checkpointing" into rvc-dev am:... (6eb78468) · Commits · e / os / android_system_core

fs_mgr/fs_mgr.cpp

+24 −4

Original line number	Diff line number	Diff line
		@@ -737,15 +737,33 @@ static int __mount(const std::string& source, const std::string& target, const F
		unsigned long mountflags = entry.flags;
		int ret = 0;
		int save_errno = 0;
		int gc_allowance = 0;
		std::string opts;
		bool try_f2fs_gc_allowance = is_f2fs(entry.fs_type) && entry.fs_checkpoint_opts.length() > 0;
		Timer t;

		do {
		if (save_errno == EINVAL && try_f2fs_gc_allowance) {
		PINFO << "Kernel does not support checkpoint=disable:[n]%, trying without.";
		try_f2fs_gc_allowance = false;
		}
		if (try_f2fs_gc_allowance) {
		opts = entry.fs_options + entry.fs_checkpoint_opts + ":" +
		std::to_string(gc_allowance) + "%";
		} else {
		opts = entry.fs_options;
		}
		if (save_errno == EAGAIN) {
		PINFO << "Retrying mount (source=" << source << ",target=" << target
		<< ",type=" << entry.fs_type << ")=" << ret << "(" << save_errno << ")";
		<< ",type=" << entry.fs_type << ", gc_allowance=" << gc_allowance << "%)=" << ret
		<< "(" << save_errno << ")";
		}
		ret = mount(source.c_str(), target.c_str(), entry.fs_type.c_str(), mountflags,
		entry.fs_options.c_str());
		opts.c_str());
		save_errno = errno;
		} while (ret && save_errno == EAGAIN);
		if (try_f2fs_gc_allowance) gc_allowance += 10;
		} while ((ret && save_errno == EAGAIN && gc_allowance <= 100) \|\|
		(ret && save_errno == EINVAL && try_f2fs_gc_allowance));
		const char* target_missing = "";
		const char* source_missing = "";
		if (save_errno == ENOENT) {
		@@ -761,6 +779,8 @@ static int __mount(const std::string& source, const std::string& target, const F
		if ((ret == 0) && (mountflags & MS_RDONLY) != 0) {
		fs_mgr_set_blk_ro(source);
		}
		android::base::SetProperty("ro.boottime.init.mount." + Basename(target),
		std::to_string(t.duration().count()));
		errno = save_errno;
		return ret;
		}
		@@ -1075,7 +1095,7 @@ class CheckpointManager {
		bool UpdateCheckpointPartition(FstabEntry* entry, const std::string& block_device) {
		if (entry->fs_mgr_flags.checkpoint_fs) {
		if (is_f2fs(entry->fs_type)) {
		entry->fs_options += ",checkpoint=disable";
		entry->fs_checkpoint_opts = ",checkpoint=disable";
		} else {
		LERROR << entry->fs_type << " does not implement checkpoints.";
		}

fs_mgr/include_fstab/fstab/fstab.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -36,6 +36,7 @@ struct FstabEntry {
		std::string fs_type;
		unsigned long flags = 0;
		std::string fs_options;
		std::string fs_checkpoint_opts;
		std::string key_loc;
		std::string metadata_key_dir;
		std::string metadata_encryption;