From: Christian König christian.koenig@amd.com
This allows device drivers to specify an additional badness for the OOM and low memory killer when they allocate memory on behalf of userspace.
Signed-off-by: Christian König christian.koenig@amd.com Reviewed-by: Alex Deucher alexander.deucher@amd.com --- fs/file_table.c | 1 + include/linux/fs.h | 1 + 2 files changed, 2 insertions(+)
diff --git a/fs/file_table.c b/fs/file_table.c index 294174d..23b797d 100644 --- a/fs/file_table.c +++ b/fs/file_table.c @@ -136,6 +136,7 @@ struct file *get_empty_filp(void) spin_lock_init(&f->f_lock); mutex_init(&f->f_pos_lock); eventpoll_init_file(f); + atomic_long_set(&f->f_oom_badness, 0); /* f->f_version: 0 */ return f;
diff --git a/include/linux/fs.h b/include/linux/fs.h index 35ec87e..5a5d20a 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -861,6 +861,7 @@ struct file { struct list_head f_tfile_llink; #endif /* #ifdef CONFIG_EPOLL */ struct address_space *f_mapping; + atomic_long_t f_oom_badness; } __attribute__((aligned(4))); /* lest something weird decides that 2 is OK */
struct file_handle {