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btrfs: don't skip accounting in early ENOTTY return in btrfs_uring_encoded_read()

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commit ea124ec327 upstream.

btrfs_uring_encoded_read() returns early with -ENOTTY if the uring_cmd
is issued with IO_URING_F_COMPAT but the kernel doesn't support compat
syscalls. However, this early return bypasses the syscall accounting.
Go to out_acct instead to ensure the syscall is counted.

Fixes: 34310c442e ("btrfs: add io_uring command for encoded reads (ENCODED_READ ioctl)")
CC: stable@vger.kernel.org # 6.15+
Signed-off-by: Caleb Sander Mateos <csander@purestorage.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Caleb Sander Mateos 2025-06-19 13:27:45 -06:00 committed by Greg Kroah-Hartman
parent 5a51957364
commit e0a8165b21
1 changed files with 2 additions and 1 deletions
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3
fs/btrfs/ioctl.c
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@ -4829,7 +4829,8 @@ static int btrfs_uring_encoded_read(struct io_uring_cmd *cmd, unsigned int issue
#if defined(CONFIG_64BIT) && defined(CONFIG_COMPAT)
copy_end = offsetofend(struct btrfs_ioctl_encoded_io_args_32, flags);
#else
return -ENOTTY;
ret = -ENOTTY;
goto out_acct;
#endif
} else {
copy_end = copy_end_kernel;