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commit b46edd1252fcf7595d03dbe082cf59894f87ff1e Author: chao an <[email protected]> AuthorDate: Wed Sep 18 09:13:18 2024 +0800 fs/reference_count: set default reference count option depends on DISABLE_PTHREAD Most of developers will not have the scenarios of open/close file descriptors in multi-threads, The default option will incur additional code size overhead for such devices. this PR will preserve the behavior before PR#13296 was introduced, and ensure that the default code size is not affected. Note that this option will ensure the safety of access to the file system from multi-tasks (Task A blocking rw(fd), then Task B close(fd)), the disadvantage is that it will increase the amount of code-size, there is no need to enable this option if the application could ensure he file operations are safe. Signed-off-by: chao an <[email protected]> --- fs/Kconfig | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/fs/Kconfig b/fs/Kconfig index 545435818d..3b1af8b404 100644 --- a/fs/Kconfig +++ b/fs/Kconfig @@ -129,11 +129,17 @@ config FS_HEAPBUF_SECTION config FS_REFCOUNT bool "File reference count" - default !DEFAULT_SMALL + default !DISABLE_PTHREAD ---help--- Enable will Records the number of filep references. The file is actually closed when the count reaches 0 + Note that this option will ensure the safety of access to the file + system from multi-tasks (thread A blocking rw(fd), then thread B close(fd)), + the disadvantage is that it will increase the amount of code-size, + there is no need to enable this option if the application could ensure + he file operations are safe. + source "fs/vfs/Kconfig" source "fs/aio/Kconfig" source "fs/semaphore/Kconfig"
