diff options
Diffstat (limited to 'fs/buffer.c')
| -rw-r--r-- | fs/buffer.c | 26 |
1 files changed, 11 insertions, 15 deletions
diff --git a/fs/buffer.c b/fs/buffer.c index b205a629001d..a3bfd57c2697 100644 --- a/fs/buffer.c +++ b/fs/buffer.c @@ -753,7 +753,7 @@ static int fsync_buffers_list(spinlock_t *lock, struct list_head *list) * still in flight on potentially older * contents. */ - write_dirty_buffer(bh, WRITE_SYNC); + write_dirty_buffer(bh, REQ_SYNC); /* * Kick off IO for the previous mapping. Note @@ -1684,7 +1684,7 @@ static struct buffer_head *create_page_buffers(struct page *page, struct inode * * prevents this contention from occurring. * * If block_write_full_page() is called with wbc->sync_mode == - * WB_SYNC_ALL, the writes are posted using WRITE_SYNC; this + * WB_SYNC_ALL, the writes are posted using REQ_SYNC; this * causes the writes to be flagged as synchronous writes. */ int __block_write_full_page(struct inode *inode, struct page *page, @@ -1697,7 +1697,7 @@ int __block_write_full_page(struct inode *inode, struct page *page, struct buffer_head *bh, *head; unsigned int blocksize, bbits; int nr_underway = 0; - int write_flags = (wbc->sync_mode == WB_SYNC_ALL ? WRITE_SYNC : 0); + int write_flags = wbc_to_write_flags(wbc); head = create_page_buffers(page, inode, (1 << BH_Dirty)|(1 << BH_Uptodate)); @@ -3118,7 +3118,7 @@ EXPORT_SYMBOL(submit_bh); /** * ll_rw_block: low-level access to block devices (DEPRECATED) * @op: whether to %READ or %WRITE - * @op_flags: rq_flag_bits + * @op_flags: req_flag_bits * @nr: number of &struct buffer_heads in the array * @bhs: array of pointers to &struct buffer_head * @@ -3210,7 +3210,7 @@ EXPORT_SYMBOL(__sync_dirty_buffer); int sync_dirty_buffer(struct buffer_head *bh) { - return __sync_dirty_buffer(bh, WRITE_SYNC); + return __sync_dirty_buffer(bh, REQ_SYNC); } EXPORT_SYMBOL(sync_dirty_buffer); @@ -3403,7 +3403,7 @@ void free_buffer_head(struct buffer_head *bh) } EXPORT_SYMBOL(free_buffer_head); -static void buffer_exit_cpu(int cpu) +static int buffer_exit_cpu_dead(unsigned int cpu) { int i; struct bh_lru *b = &per_cpu(bh_lrus, cpu); @@ -3414,14 +3414,7 @@ static void buffer_exit_cpu(int cpu) } this_cpu_add(bh_accounting.nr, per_cpu(bh_accounting, cpu).nr); per_cpu(bh_accounting, cpu).nr = 0; -} - -static int buffer_cpu_notify(struct notifier_block *self, - unsigned long action, void *hcpu) -{ - if (action == CPU_DEAD || action == CPU_DEAD_FROZEN) - buffer_exit_cpu((unsigned long)hcpu); - return NOTIFY_OK; + return 0; } /** @@ -3471,6 +3464,7 @@ EXPORT_SYMBOL(bh_submit_read); void __init buffer_init(void) { unsigned long nrpages; + int ret; bh_cachep = kmem_cache_create("buffer_head", sizeof(struct buffer_head), 0, @@ -3483,5 +3477,7 @@ void __init buffer_init(void) */ nrpages = (nr_free_buffer_pages() * 10) / 100; max_buffer_heads = nrpages * (PAGE_SIZE / sizeof(struct buffer_head)); - hotcpu_notifier(buffer_cpu_notify, 0); + ret = cpuhp_setup_state_nocalls(CPUHP_FS_BUFF_DEAD, "fs/buffer:dead", + NULL, buffer_exit_cpu_dead); + WARN_ON(ret < 0); } |