Change Details

Define a locking regime for the members of struct timerfd and document it so future code can follow the standard. The lock legend can be found in a comment above struct timerfd. Additionally, * Adjust some code to follow the new locking regime. * Initialize tfd_lock with MTX_RECURSE. * Report st_ctim for stat(2). * Do not pollute userspace with sys/proc.h. * Move freebsd32 compat code to freebsd32_misc.c. * Check if file has f_type == DTYPE_TIMERFD before assigning timerfd pointer to f_data. This avoids undefined behavior in situations where the underlying f_data has mismatched alignment with struct timerfd, causing an invalid pointer assignment.

Define a locking regime for the members of struct timerfd and document it so future code can follow the standard. The lock legend can be found in a comment above struct timerfd. Additionally, * Adjust some code to follow the new locking regime. * Fill kn_data with the expiration count when EVFILT_READ is triggered. * Report st_ctim for stat(2). * Do not pollute userspace with sys/proc.h. * Move freebsd32 compat code to freebsd32_misc.c. * Check if file has f_type == DTYPE_TIMERFD before assigning timerfd pointer to f_data. This avoids undefined behavior in situations where the underlying f_data has mismatched alignment with struct timerfd, causing an invalid pointer assignment.

Define a locking regime for the members of struct timerfd and document it so future code can follow the standard. The lock legend can be found in a comment above struct timerfd. Additionally, * Adjust some code to follow the new locking regime. * Initialize tfd_lock with MTX_RECURSE* Fill kn_data with the expiration count when EVFILT_READ is triggered. * Report st_ctim for stat(2). * Do not pollute userspace with sys/proc.h. * Move freebsd32 compat code to freebsd32_misc.c. * Check if file has f_type == DTYPE_TIMERFD before assigning timerfd pointer to f_data. This avoids undefined behavior in situations where the underlying f_data has mismatched alignment with struct timerfd, causing an invalid pointer assignment.