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| author | Jody McIntyre <scjody@modernduck.com> | 2006-03-28 20:24:39 -0500 |
|---|---|---|
| committer | Jody McIntyre <scjody@modernduck.com> | 2006-03-28 20:24:39 -0500 |
| commit | c0e4077c946104e5d8a62f835dcdca5c79c8af7d (patch) | |
| tree | c1f458722f86690a6172bbac2dfef3241ba0ec7e /include/linux/poll.h | |
| parent | 94c2d01a537daf51a9fcf229d7d2204c979355d9 (diff) | |
| parent | ca9ba4471c1203bb6e759b76e83167fec54fe590 (diff) | |
Merge with git+ssh://master.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
Diffstat (limited to 'include/linux/poll.h')
| -rw-r--r-- | include/linux/poll.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/include/linux/poll.h b/include/linux/poll.h index 8e8f6098508..51e1b56741f 100644 --- a/include/linux/poll.h +++ b/include/linux/poll.h @@ -11,6 +11,15 @@ #include <linux/mm.h> #include <asm/uaccess.h> +/* ~832 bytes of stack space used max in sys_select/sys_poll before allocating + additional memory. */ +#define MAX_STACK_ALLOC 832 +#define FRONTEND_STACK_ALLOC 256 +#define SELECT_STACK_ALLOC FRONTEND_STACK_ALLOC +#define POLL_STACK_ALLOC FRONTEND_STACK_ALLOC +#define WQUEUES_STACK_ALLOC (MAX_STACK_ALLOC - FRONTEND_STACK_ALLOC) +#define N_INLINE_POLL_ENTRIES (WQUEUES_STACK_ALLOC / sizeof(struct poll_table_entry)) + struct poll_table_struct; /* @@ -33,6 +42,12 @@ static inline void init_poll_funcptr(poll_table *pt, poll_queue_proc qproc) pt->qproc = qproc; } +struct poll_table_entry { + struct file * filp; + wait_queue_t wait; + wait_queue_head_t * wait_address; +}; + /* * Structures and helpers for sys_poll/sys_poll */ @@ -40,6 +55,8 @@ struct poll_wqueues { poll_table pt; struct poll_table_page * table; int error; + int inline_index; + struct poll_table_entry inline_entries[N_INLINE_POLL_ENTRIES]; }; extern void poll_initwait(struct poll_wqueues *pwq); |