diff options
| -rw-r--r-- | fs/buffer.c | 10 | ||||
| -rw-r--r-- | fs/fs-writeback.c | 5 | ||||
| -rw-r--r-- | mm/page-writeback.c | 8 | ||||
| -rw-r--r-- | mm/shmem.c | 5 | ||||
| -rw-r--r-- | mm/vmscan.c | 8 |
5 files changed, 17 insertions, 19 deletions
diff --git a/fs/buffer.c b/fs/buffer.c index 90a9886..fc22b45 100644 --- a/fs/buffer.c +++ b/fs/buffer.c @@ -274,7 +274,7 @@ void invalidate_bdev(struct block_device *bdev) } /* - * Kick pdflush then try to free up some ZONE_NORMAL memory. + * Kick the writeback threads then try to free up some ZONE_NORMAL memory. */ static void free_more_memory(void) { @@ -1699,9 +1699,9 @@ static int __block_write_full_page(struct inode *inode, struct page *page, /* * If it's a fully non-blocking write attempt and we cannot * lock the buffer then redirty the page. Note that this can - * potentially cause a busy-wait loop from pdflush and kswapd - * activity, but those code paths have their own higher-level - * throttling. + * potentially cause a busy-wait loop from writeback threads + * and kswapd activity, but those code paths have their own + * higher-level throttling. */ if (wbc->sync_mode != WB_SYNC_NONE || !wbc->nonblocking) { lock_buffer(bh); @@ -3191,7 +3191,7 @@ void block_sync_page(struct page *page) * still running obsolete flush daemons, so we terminate them here. * * Use of bdflush() is deprecated and will be removed in a future kernel. - * The `pdflush' kernel threads fully replace bdflush daemons and this call. + * The `flush-X' kernel threads fully replace bdflush daemons and this call. */ SYSCALL_DEFINE2(bdflush, int, func, long, data) { diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c index 15e375b..15944f7 100644 --- a/fs/fs-writeback.c +++ b/fs/fs-writeback.c @@ -320,7 +320,7 @@ static bool inode_dirtied_after(struct inode *inode, unsigned long t) * For inodes being constantly redirtied, dirtied_when can get stuck. * It _appears_ to be in the future, but is actually in distant past. * This test is necessary to prevent such wrapped-around relative times - * from permanently stopping the whole pdflush writeback. + * from permanently stopping the whole bdi writeback. */ ret = ret && time_before_eq(inode->dirtied_when, jiffies); #endif @@ -1085,9 +1085,6 @@ EXPORT_SYMBOL(__mark_inode_dirty); * If older_than_this is non-NULL, then only write out inodes which * had their first dirtying at a time earlier than *older_than_this. * - * If we're a pdlfush thread, then implement pdflush collision avoidance - * against the entire list. - * * If `bdi' is non-zero then we're being asked to writeback a specific queue. * This function assumes that the blockdev superblock's inodes are backed by * a variety of queues, so all inodes are searched. For other superblocks, diff --git a/mm/page-writeback.c b/mm/page-writeback.c index 3c78fc3..8bef063 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -58,7 +58,7 @@ static inline long sync_writeback_pages(unsigned long dirtied) /* The following parameters are exported via /proc/sys/vm */ /* - * Start background writeback (via pdflush) at this percentage + * Start background writeback (via writeback threads) at this percentage */ int dirty_background_ratio = 10; @@ -477,8 +477,8 @@ get_dirty_limits(unsigned long *pbackground, unsigned long *pdirty, * balance_dirty_pages() must be called by processes which are generating dirty * data. It looks at the number of dirty pages in the machine and will force * the caller to perform writeback if the system is over `vm_dirty_ratio'. - * If we're over `background_thresh' then pdflush is woken to perform some - * writeout. + * If we're over `background_thresh' then the writeback threads are woken to + * perform some writeout. */ static void balance_dirty_pages(struct address_space *mapping, unsigned long write_chunk) @@ -582,7 +582,7 @@ static void balance_dirty_pages(struct address_space *mapping, bdi->dirty_exceeded = 0; if (writeback_in_progress(bdi)) - return; /* pdflush is already working this queue */ + return; /* * In laptop mode, we wait until hitting the higher threshold before @@ -1046,8 +1046,9 @@ static int shmem_writepage(struct page *page, struct writeback_control *wbc) * sync from ever calling shmem_writepage; but a stacking filesystem * may use the ->writepage of its underlying filesystem, in which case * tmpfs should write out to swap only in response to memory pressure, - * and not for pdflush or sync. However, in those cases, we do still - * want to check if there's a redundant swappage to be discarded. + * and not for the writeback threads or sync. However, in those cases, + * we do still want to check if there's a redundant swappage to be + * discarded. */ if (wbc->for_reclaim) swap = get_swap_page(); diff --git a/mm/vmscan.c b/mm/vmscan.c index 613e89f..359c3c5 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -1709,10 +1709,10 @@ static void shrink_zones(int priority, struct zonelist *zonelist, * * If the caller is !__GFP_FS then the probability of a failure is reasonably * high - the zone may be full of dirty or under-writeback pages, which this - * caller can't do much about. We kick pdflush and take explicit naps in the - * hope that some of these pages can be written. But if the allocating task - * holds filesystem locks which prevent writeout this might not work, and the - * allocation attempt will fail. + * caller can't do much about. We kick the writeback threads and take explicit + * naps in the hope that some of these pages can be written. But if the + * allocating task holds filesystem locks which prevent writeout this might not + * work, and the allocation attempt will fail. * * returns: 0, if no pages reclaimed * else, the number of pages reclaimed |
