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nuttx/fs/vfs
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zhanxiaoqi 786b315947 fs/inode: add optional manual FD backtrace control via task group flag 
When CONFIG_FS_BACKTRACE is enabled, collecting a stack trace for every
new file descriptor adds overhead to fast path operations like open(),
dup(), and socket().

This patch adds a new configuration option CONFIG_FS_BACKTRACE_DEFAULT.
When enabled (default behavior), the GROUP_FLAG_FD_BACKTRACE flag is
automatically set during group allocation, causing backtrace to be
captured for all tasks globally, preserving the original diagnostic
capability.

When disabled, backtrace capture is zero-cost by default and must be
explicitly enabled per task group using GROUP_FLAG_FD_BACKTRACE.

Signed-off-by: zhanxiaoqi <zhanxiaoqi@bytedance.com>
2026-04-28 09:53:27 +02:00
..
CMakeLists.txt fs: Add Kernel-level VFS Performance Profiler 2026-04-26 11:50:09 -03:00
fs_chstat.c fs: migrate to SPDX identifier 2024-11-06 01:58:54 +08:00
fs_close.c fs: Add Kernel-level VFS Performance Profiler 2026-04-26 11:50:09 -03:00
fs_dir.c style: fix spelling in code comments and strings 2025-05-23 10:48:41 +08:00
fs_dup.c fs/vfs: Separate file descriptors from file descriptions 2025-06-12 18:12:42 +08:00
fs_dup2.c fs/vfs: fix bug about lost dup oflags in dup2 2025-07-15 19:46:24 +08:00
fs_dup3.c fs/vfs: Separate file descriptors from file descriptions 2025-06-12 18:12:42 +08:00
fs_epoll.c include/debug.h: Move to include/nuttx/debug.h 2026-04-07 07:50:06 -03:00
fs_eventfd.c include/debug.h: Move to include/nuttx/debug.h 2026-04-07 07:50:06 -03:00
fs_fchstat.c fs: Move inotify.c from fs/notify/ to fs/vfs/ 2025-06-23 18:17:10 -03:00
fs_fcntl.c fs/fcntl: using ioctl to implement FIOGCLEX/FIOCLEX/FIONCLEX 2025-06-15 07:12:44 -03:00
fs_fstat.c fs/vfs/fs_fstat.c: fix write capability check in proxy_fstat() 2026-04-16 13:35:41 +02:00
fs_fstatfs.c fs/file: unify prefix about file_xxx api, like file_open, file_ioctl 2025-06-12 18:12:42 +08:00
fs_fsync.c fs/file: unify prefix about file_xxx api, like file_open, file_ioctl 2025-06-12 18:12:42 +08:00
fs_inotify.c include/debug.h: Move to include/nuttx/debug.h 2026-04-07 07:50:06 -03:00
fs_ioctl.c fs/vfs: Rename lock.h to vfs.h 2025-06-23 18:17:10 -03:00
fs_link.c fs: migrate to SPDX identifier 2024-11-06 01:58:54 +08:00
fs_lock.c fs/vfs/fs_lock.c: Close stale locks unconditionally 2026-04-28 11:51:35 +08:00
fs_lseek.c fs/file: unify prefix about file_xxx api, like file_open, file_ioctl 2025-06-12 18:12:42 +08:00
fs_mkdir.c fs: Move inotify.c from fs/notify/ to fs/vfs/ 2025-06-23 18:17:10 -03:00
fs_open.c fs: Add Kernel-level VFS Performance Profiler 2026-04-26 11:50:09 -03:00
fs_poll.c include/debug.h: Move to include/nuttx/debug.h 2026-04-07 07:50:06 -03:00
fs_pread.c fs/file: unify prefix about file_xxx api, like file_open, file_ioctl 2025-06-12 18:12:42 +08:00
fs_profile.c fs: Add Kernel-level VFS Performance Profiler 2026-04-26 11:50:09 -03:00
fs_pseudofile.c fs: Move inotify.c from fs/notify/ to fs/vfs/ 2025-06-23 18:17:10 -03:00
fs_pwrite.c fs/file: unify prefix about file_xxx api, like file_open, file_ioctl 2025-06-12 18:12:42 +08:00
fs_read.c fs: Add Kernel-level VFS Performance Profiler 2026-04-26 11:50:09 -03:00
fs_readlink.c fs: migrate to SPDX identifier 2024-11-06 01:58:54 +08:00
fs_rename.c fs/vfs/fs_rename: fix directory move operation. 2025-07-31 01:53:59 +08:00
fs_rmdir.c fs: Move inotify.c from fs/notify/ to fs/vfs/ 2025-06-23 18:17:10 -03:00
fs_select.c include/debug.h: Move to include/nuttx/debug.h 2026-04-07 07:50:06 -03:00
fs_sendfile.c include/debug.h: Move to include/nuttx/debug.h 2026-04-07 07:50:06 -03:00
fs_signalfd.c include/debug.h: Move to include/nuttx/debug.h 2026-04-07 07:50:06 -03:00
fs_stat.c fs/fs.h: Add register_driver_with_size function 2025-11-13 08:57:52 -03:00
fs_statfs.c fs: migrate to SPDX identifier 2024-11-06 01:58:54 +08:00
fs_symlink.c fs/vfs/symlink: fix the inode information update outside of lock 2026-01-28 10:03:06 +08:00
fs_syncfs.c fs/file: unify prefix about file_xxx api, like file_open, file_ioctl 2025-06-12 18:12:42 +08:00
fs_timerfd.c include/debug.h: Move to include/nuttx/debug.h 2026-04-07 07:50:06 -03:00
fs_truncate.c include/debug.h: Move to include/nuttx/debug.h 2026-04-07 07:50:06 -03:00
fs_uio.c fs/uio: do not overwrite the return value 2025-01-22 16:45:46 +08:00
fs_unlink.c fs: Move inotify.c from fs/notify/ to fs/vfs/ 2025-06-23 18:17:10 -03:00
fs_write.c fs: Add Kernel-level VFS Performance Profiler 2026-04-26 11:50:09 -03:00
Kconfig fs/inode: add optional manual FD backtrace control via task group flag 2026-04-28 09:53:27 +02:00
Make.defs fs: Add Kernel-level VFS Performance Profiler 2026-04-26 11:50:09 -03:00
vfs.h fs: Add Kernel-level VFS Performance Profiler 2026-04-26 11:50:09 -03:00