drgreen/android_frameworks_base
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Compress .so files for PackageManager to reclaim the space

Browse Source 
Let's set compression bit to compress .so files in first place for PM.
If the underlying filesystem like f2fs supports per-file compression, we can
give the compressed space back to user.

Bug: 188859114
Signed-off-by: Jaegeuk Kim <jaegeuk@google.com>
Change-Id: I6f261946c0a076ec50ec41bfe031f4438fed4db8
This commit is contained in:
Jaegeuk Kim 2021-11-08 14:01:07 -08:00
parent 8aebd244de
commit 61a0a35dd5
1 changed files with 11 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
core/jni/com_android_internal_content_NativeLibraryHelper.cpp
View File

@ -36,6 +36,7 @@
#include <inttypes.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <linux/fs.h>
#include <memory>
@ -253,6 +254,16 @@ copyFileIfChanged(JNIEnv *env, void* arg, ZipFileRO* zipFile, ZipEntryRO zipEntr
return INSTALL_FAILED_CONTAINER_ERROR;
}
// If a filesystem like f2fs supports per-file compression, set the compression bit before data
// writes
unsigned int flags;
if (ioctl(fd, FS_IOC_GETFLAGS, &flags) == -1) {
ALOGE("Failed to call FS_IOC_GETFLAGS on %s: %s\n", localTmpFileName, strerror(errno));
} else if ((flags & FS_COMPR_FL) == 0) {
flags |= FS_COMPR_FL;
ioctl(fd, FS_IOC_SETFLAGS, &flags);
}
if (!zipFile->uncompressEntry(zipEntry, fd)) {
ALOGE("Failed uncompressing %s to %s\n", fileName, localTmpFileName);
close(fd);