common/checksum/sse2neon.h (7 lines):
	- line 235: /* FIXME: #pragma GCC push_options is only available on GCC */
	- line 842: float32x2_t a02 = vset_lane_f32(a0, a22, 1); /* TODO: use vzip ?*/
	- line 2510: // FIXME: _mm_setcsr() implementation supports changing the rounding mode only.
	- line 2518: // FIXME: _mm_getcsr() implementation supports reading the rounding mode only.
	- line 4807: /* FIXME: issue with large values because of result saturation */
	- line 8925: /* FIXME: optimized for NEON */
	- line 9030: /* FIXME: optimized for NEON */


fs/async_filesystem.cpp (2 lines):
	- line 37: // ThPerformer, th_performer: perform operations by creating kernel threads (TODO: thread pool)
	- line 83: // threaded performer       TODO: thread pool


fs/extfs/extfs.cpp (2 lines):
	- line 209: // TODO handle 32 bit {u,g}ids
	- line 928: // TODO make ino_iter_blocks() compatible with ext2/3


net/curl.h (1 line):
	- line 266: // TODO: https://curl.haxx.se/libcurl/c/CURLOPT_HTTPHEADER.html


common/estring.h (1 line):
	- line 289: // TODO: support for negative index


include/photon/io/fd-events.h (1 line):
	- line 217: // TODO: implement select engine in separate cpp files


thread/st.cpp (1 line):
	- line 328: // TODO:: this implementation of DOIO_LOOP incurs an extra wait_for_fd()


include/photon/common/throttle.h (1 line):
	- line 65: // TODO: Handle the situation when throttle limit is extremely low


thread/thread.cpp (1 line):
	- line 470: // TODO: better place the two atomics in separate cache line?


include/photon/common/estring.h (1 line):
	- line 289: // TODO: support for negative index


common/throttle.h (1 line):
	- line 65: // TODO: Handle the situation when throttle limit is extremely low


include/photon/net/curl.h (1 line):
	- line 266: // TODO: https://curl.haxx.se/libcurl/c/CURLOPT_HTTPHEADER.html


io/fd-events.h (1 line):
	- line 217: // TODO: implement select engine in separate cpp files


fs/xfile.cpp (1 line):
	- line 199: {   // TODO: batch pread & pwrite with iovectorized I/O (preadv / pwritev)


fs/extfs/extfs_utils.i (1 line):
	- line 404: ret = ext2fs_inode_size_set(fs, &inode, 0);  // TODO: update size? also on write?