return retval;
}
-/*
- * uses fstat to report the size of a file on disk
- */
-static off_t
-get_file_size(int fd)
-{
- struct stat st;
- if (fstat(fd, &st) < 0)
- return 0;
- return st.st_size;
-}
-
/*
* Clear the hugepage directory of whatever hugepage files
* there are. Checks if the file is locked (i.e.
}
while(dirent != NULL){
- struct flock lck = {0};
-
/* skip files that don't match the hugepage pattern */
if (fnmatch(filter, dirent->d_name, 0) > 0) {
dirent = readdir(dir);
}
/* non-blocking lock */
- lck.l_type = F_RDLCK;
- lck.l_whence = SEEK_SET;
- lck.l_start = 0;
- lck.l_len = get_file_size(fd);
+ lck_result = flock(fd, LOCK_EX | LOCK_NB);
- lck_result = fcntl(fd, F_SETLK, &lck);
-
- /* if lock succeeds, unlock and remove the file */
- if (lck_result != -1) {
- lck.l_type = F_UNLCK;
- fcntl(fd, F_SETLK, &lck);
+ /* if lock succeeds, remove the file */
+ if (lck_result != -1)
unlinkat(dir_fd, dirent->d_name, 0);
- }
close (fd);
dirent = readdir(dir);
}