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

Merge "libfiemap_writer: test pinned file bit"

Browse source 
am: 73bb342956

Change-Id: I2a4b5794e2be4c28f2362ed95e8cd75994d02cbd
This commit is contained in:
Jaegeuk Kim 2019-04-03 15:04:24 -07:00 committed by android-build-merger
commit e0df95d8a8
1 changed files with 17 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

18
fs_mgr/libfiemap_writer/fiemap_writer.cpp
View file

@ -407,9 +407,25 @@ static bool IsFilePinned(int file_fd, const std::string& file_path, uint32_t fs_
#define F2FS_IOC_GET_PIN_FILE _IOR(F2FS_IOCTL_MAGIC, 14, __u32)
#endif
// f2fs: export FS_NOCOW_FL flag to user
uint32_t flags;
int error = ioctl(file_fd, FS_IOC_GETFLAGS, &flags);
if (error < 0) {
if ((errno == ENOTTY) || (errno == ENOTSUP)) {
PLOG(ERROR) << "Failed to get flags, not supported by kernel: " << file_path;
} else {
PLOG(ERROR) << "Failed to get flags: " << file_path;
}
return false;
}
if (!(flags & FS_NOCOW_FL)) {
LOG(ERROR) << "It is not pinned: " << file_path;
return false;
}
// F2FS_IOC_GET_PIN_FILE returns the number of blocks moved.
uint32_t moved_blocks_nr;
int error = ioctl(file_fd, F2FS_IOC_GET_PIN_FILE, &moved_blocks_nr);
error = ioctl(file_fd, F2FS_IOC_GET_PIN_FILE, &moved_blocks_nr);
if (error < 0) {
if ((errno == ENOTTY) || (errno == ENOTSUP)) {
PLOG(ERROR) << "Failed to get file pin status, not supported by kernel: " << file_path;