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author | Olof Johansson <olof@lixom.net> | 2013-01-14 10:20:02 -0800 |
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committer | Olof Johansson <olof@lixom.net> | 2013-01-14 10:20:02 -0800 |
commit | 8d84981e395850aab31c3f2ca7e2738e03f671d7 (patch) | |
tree | 933425fddb23d28be802277471df3fe3f6c2711d /fs/f2fs/segment.c | |
parent | 00c82d64405631967dca3890a9ce80ab35d04cc7 (diff) | |
parent | 77cc982f6a3b33a5aa058ad3b20cda8866db2948 (diff) | |
download | op-kernel-dev-8d84981e395850aab31c3f2ca7e2738e03f671d7.zip op-kernel-dev-8d84981e395850aab31c3f2ca7e2738e03f671d7.tar.gz |
Merge branch 'clocksource/cleanup' into next/cleanup
Clockevent cleanup series from Shawn Guo.
Resolved move/change conflict in mach-pxa/time.c due to the sys_timer
cleanup.
* clocksource/cleanup:
clocksource: use clockevents_config_and_register() where possible
ARM: use clockevents_config_and_register() where possible
clockevents: export clockevents_config_and_register for module use
+ sync to Linux 3.8-rc3
Signed-off-by: Olof Johansson <olof@lixom.net>
Conflicts:
arch/arm/mach-pxa/time.c
Diffstat (limited to 'fs/f2fs/segment.c')
-rw-r--r-- | fs/f2fs/segment.c | 46 |
1 files changed, 6 insertions, 40 deletions
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index 1b26e4e..de62409 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -12,54 +12,23 @@ #include <linux/f2fs_fs.h> #include <linux/bio.h> #include <linux/blkdev.h> +#include <linux/prefetch.h> #include <linux/vmalloc.h> #include "f2fs.h" #include "segment.h" #include "node.h" -static int need_to_flush(struct f2fs_sb_info *sbi) -{ - unsigned int pages_per_sec = (1 << sbi->log_blocks_per_seg) * - sbi->segs_per_sec; - int node_secs = ((get_pages(sbi, F2FS_DIRTY_NODES) + pages_per_sec - 1) - >> sbi->log_blocks_per_seg) / sbi->segs_per_sec; - int dent_secs = ((get_pages(sbi, F2FS_DIRTY_DENTS) + pages_per_sec - 1) - >> sbi->log_blocks_per_seg) / sbi->segs_per_sec; - - if (sbi->por_doing) - return 0; - - if (free_sections(sbi) <= (node_secs + 2 * dent_secs + - reserved_sections(sbi))) - return 1; - return 0; -} - /* * This function balances dirty node and dentry pages. * In addition, it controls garbage collection. */ void f2fs_balance_fs(struct f2fs_sb_info *sbi) { - struct writeback_control wbc = { - .sync_mode = WB_SYNC_ALL, - .nr_to_write = LONG_MAX, - .for_reclaim = 0, - }; - - if (sbi->por_doing) - return; - /* - * We should do checkpoint when there are so many dirty node pages - * with enough free segments. After then, we should do GC. + * We should do GC or end up with checkpoint, if there are so many dirty + * dir/node pages without enough free segments. */ - if (need_to_flush(sbi)) { - sync_dirty_dir_inodes(sbi); - sync_node_pages(sbi, 0, &wbc); - } - if (has_not_enough_free_secs(sbi)) { mutex_lock(&sbi->gc_mutex); f2fs_gc(sbi, 1); @@ -631,7 +600,6 @@ static void f2fs_end_io_write(struct bio *bio, int err) if (page->mapping) set_bit(AS_EIO, &page->mapping->flags); set_ckpt_flags(p->sbi->ckpt, CP_ERROR_FLAG); - set_page_dirty(page); } end_page_writeback(page); dec_page_count(p->sbi, F2FS_WRITEBACK); @@ -791,11 +759,10 @@ static int __get_segment_type(struct page *page, enum page_type p_type) return __get_segment_type_2(page, p_type); case 4: return __get_segment_type_4(page, p_type); - case 6: - return __get_segment_type_6(page, p_type); - default: - BUG(); } + /* NR_CURSEG_TYPE(6) logs by default */ + BUG_ON(sbi->active_logs != NR_CURSEG_TYPE); + return __get_segment_type_6(page, p_type); } static void do_write_page(struct f2fs_sb_info *sbi, struct page *page, @@ -1608,7 +1575,6 @@ static int build_dirty_segmap(struct f2fs_sb_info *sbi) for (i = 0; i < NR_DIRTY_TYPE; i++) { dirty_i->dirty_segmap[i] = kzalloc(bitmap_size, GFP_KERNEL); - dirty_i->nr_dirty[i] = 0; if (!dirty_i->dirty_segmap[i]) return -ENOMEM; } |