diff options
Diffstat (limited to 'src/third_party/wiredtiger/src/include/serial.i')
| -rw-r--r-- | src/third_party/wiredtiger/src/include/serial.i | 32 |
1 files changed, 0 insertions, 32 deletions
diff --git a/src/third_party/wiredtiger/src/include/serial.i b/src/third_party/wiredtiger/src/include/serial.i index 0134e1a9c20..59072278dcf 100644 --- a/src/third_party/wiredtiger/src/include/serial.i +++ b/src/third_party/wiredtiger/src/include/serial.i @@ -7,29 +7,6 @@ */ /* - * __page_write_gen_wrapped_check -- - * Confirm the page's write generation number won't wrap. - */ -static inline int -__page_write_gen_wrapped_check(WT_PAGE *page) -{ - /* - * Check to see if the page's write generation is about to wrap (wildly - * unlikely as it implies 4B updates between clean page reconciliations, - * but technically possible), and fail the update. - * - * The check is outside of the serialization mutex because the page's - * write generation is going to be a hot cache line, so technically it's - * possible for the page's write generation to wrap between the test and - * our subsequent modification of it. However, the test is (4B-1M), and - * there cannot be a million threads that have done the test but not yet - * completed their modification. - */ - return (page->modify->write_gen > - UINT32_MAX - WT_MILLION ? WT_RESTART : 0); -} - -/* * __insert_simple_func -- * Worker function to add a WT_INSERT entry to the middle of a skiplist. */ @@ -159,9 +136,6 @@ __wt_col_append_serial(WT_SESSION_IMPL *session, WT_PAGE *page, WT_INSERT *new_ins = *new_insp; WT_DECL_RET; - /* Check for page write generation wrap. */ - WT_RET(__page_write_gen_wrapped_check(page)); - /* Clear references to memory we now own and must free on error. */ *new_insp = NULL; @@ -210,9 +184,6 @@ __wt_insert_serial(WT_SESSION_IMPL *session, WT_PAGE *page, u_int i; bool simple; - /* Check for page write generation wrap. */ - WT_RET(__page_write_gen_wrapped_check(page)); - /* Clear references to memory we now own and must free on error. */ *new_insp = NULL; @@ -266,9 +237,6 @@ __wt_update_serial(WT_SESSION_IMPL *session, WT_PAGE *page, WT_UPDATE *obsolete, *upd = *updp; uint64_t txn; - /* Check for page write generation wrap. */ - WT_RET(__page_write_gen_wrapped_check(page)); - /* Clear references to memory we now own and must free on error. */ *updp = NULL; |