diff options
| -rw-r--r-- | fs/btrfs/subpage.c | 29 | ||||
| -rw-r--r-- | fs/btrfs/subpage.h | 2 |
2 files changed, 31 insertions, 0 deletions
diff --git a/fs/btrfs/subpage.c b/fs/btrfs/subpage.c index 4e1b187b9607..2c51ab71e000 100644 --- a/fs/btrfs/subpage.c +++ b/fs/btrfs/subpage.c @@ -160,6 +160,33 @@ void btrfs_subpage_clear_uptodate(const struct btrfs_fs_info *fs_info, spin_unlock_irqrestore(&subpage->lock, flags); } +void btrfs_subpage_set_error(const struct btrfs_fs_info *fs_info, + struct page *page, u64 start, u32 len) +{ + struct btrfs_subpage *subpage = (struct btrfs_subpage *)page->private; + const u16 tmp = btrfs_subpage_calc_bitmap(fs_info, page, start, len); + unsigned long flags; + + spin_lock_irqsave(&subpage->lock, flags); + subpage->error_bitmap |= tmp; + SetPageError(page); + spin_unlock_irqrestore(&subpage->lock, flags); +} + +void btrfs_subpage_clear_error(const struct btrfs_fs_info *fs_info, + struct page *page, u64 start, u32 len) +{ + struct btrfs_subpage *subpage = (struct btrfs_subpage *)page->private; + const u16 tmp = btrfs_subpage_calc_bitmap(fs_info, page, start, len); + unsigned long flags; + + spin_lock_irqsave(&subpage->lock, flags); + subpage->error_bitmap &= ~tmp; + if (subpage->error_bitmap == 0) + ClearPageError(page); + spin_unlock_irqrestore(&subpage->lock, flags); +} + /* * Unlike set/clear which is dependent on each page status, for test all bits * are tested in the same way. @@ -179,6 +206,7 @@ bool btrfs_subpage_test_##name(const struct btrfs_fs_info *fs_info, \ return ret; \ } IMPLEMENT_BTRFS_SUBPAGE_TEST_OP(uptodate); +IMPLEMENT_BTRFS_SUBPAGE_TEST_OP(error); /* * Note that, in selftests (extent-io-tests), we can have empty fs_info passed @@ -214,3 +242,4 @@ bool btrfs_page_test_##name(const struct btrfs_fs_info *fs_info, \ } IMPLEMENT_BTRFS_PAGE_OPS(uptodate, SetPageUptodate, ClearPageUptodate, PageUptodate); +IMPLEMENT_BTRFS_PAGE_OPS(error, SetPageError, ClearPageError, PageError); diff --git a/fs/btrfs/subpage.h b/fs/btrfs/subpage.h index 98d511cd75bf..f3c5def313a1 100644 --- a/fs/btrfs/subpage.h +++ b/fs/btrfs/subpage.h @@ -19,6 +19,7 @@ struct btrfs_subpage { /* Common members for both data and metadata pages */ spinlock_t lock; u16 uptodate_bitmap; + u16 error_bitmap; union { /* * Structures only used by metadata @@ -77,5 +78,6 @@ bool btrfs_page_test_##name(const struct btrfs_fs_info *fs_info, \ struct page *page, u64 start, u32 len); DECLARE_BTRFS_SUBPAGE_OPS(uptodate); +DECLARE_BTRFS_SUBPAGE_OPS(error); #endif |