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authorPavel Begunkov <asml.silence@gmail.com>2022-10-16 21:30:48 +0100
committerJens Axboe <axboe@kernel.dk>2022-10-16 17:07:12 -0600
commit38eddb2c75fb99b9cd78445094ca0e1bda08d102 (patch)
tree628f88e6f0449881091b76e5851a186b85864357 /io_uring/filetable.h
parent9abf2313adc1ca1b6180c508c25f22f9395cc780 (diff)
io_uring: remove FFS_SCM
THe lifetime of SCM'ed files is bound to ring_sock, which is destroyed strictly after we're done with registered file tables. This means there is no need for the FFS_SCM hack, which was not available on 32-bit builds anyway. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/984226a1045adf42dc35d8bd7fb5a8bbfa472ce1.1665891182.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'io_uring/filetable.h')
-rw-r--r--io_uring/filetable.h15
1 files changed, 1 insertions, 14 deletions
diff --git a/io_uring/filetable.h b/io_uring/filetable.h
index ff3a712e11bf..19d2aed66c72 100644
--- a/io_uring/filetable.h
+++ b/io_uring/filetable.h
@@ -5,22 +5,9 @@
#include <linux/file.h>
#include <linux/io_uring_types.h>
-/*
- * FFS_SCM is only available on 64-bit archs, for 32-bit we just define it as 0
- * and define IO_URING_SCM_ALL. For this case, we use SCM for all files as we
- * can't safely always dereference the file when the task has exited and ring
- * cleanup is done. If a file is tracked and part of SCM, then unix gc on
- * process exit may reap it before __io_sqe_files_unregister() is run.
- */
#define FFS_NOWAIT 0x1UL
#define FFS_ISREG 0x2UL
-#if defined(CONFIG_64BIT)
-#define FFS_SCM 0x4UL
-#else
-#define IO_URING_SCM_ALL
-#define FFS_SCM 0x0UL
-#endif
-#define FFS_MASK ~(FFS_NOWAIT|FFS_ISREG|FFS_SCM)
+#define FFS_MASK ~(FFS_NOWAIT|FFS_ISREG)
bool io_alloc_file_tables(struct io_file_table *table, unsigned nr_files);
void io_free_file_tables(struct io_file_table *table);