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| author | Josef Bacik <josef@redhat.com> | 2011-04-06 13:05:22 -0400 |
|---|---|---|
| committer | Josef Bacik <josef@redhat.com> | 2011-04-08 13:00:27 -0400 |
| commit | be1a12a0dfed06cf1e62e35bf91620dc610a451a (patch) | |
| tree | f2cd5976aae8a466b926f9fd7c0e10a082b5a11a /fs/btrfs/ctree.h | |
| parent | c9ddec74aa950a220cc4caa5215cfc5d886050b7 (diff) | |
| download | kernel_samsung_smdk4412-be1a12a0dfed06cf1e62e35bf91620dc610a451a.zip kernel_samsung_smdk4412-be1a12a0dfed06cf1e62e35bf91620dc610a451a.tar.gz kernel_samsung_smdk4412-be1a12a0dfed06cf1e62e35bf91620dc610a451a.tar.bz2 | |
Btrfs: deal with the case that we run out of space in the cache
Currently we don't handle running out of space in the cache, so to fix this we
keep track of how far in the cache we are. Then we only dirty the pages if we
successfully modify all of them, otherwise if we have an error or run out of
space we can just drop them and not worry about the vm writing them out.
Thanks,
Tested-by Johannes Hirte <johannes.hirte@fem.tu-ilmenau.de>
Signed-off-by: Josef Bacik <josef@redhat.com>
Diffstat (limited to 'fs/btrfs/ctree.h')
| -rw-r--r-- | fs/btrfs/ctree.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 3458b57..0d00a07 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -2576,6 +2576,11 @@ int btrfs_drop_extents(struct btrfs_trans_handle *trans, struct inode *inode, int btrfs_mark_extent_written(struct btrfs_trans_handle *trans, struct inode *inode, u64 start, u64 end); int btrfs_release_file(struct inode *inode, struct file *file); +void btrfs_drop_pages(struct page **pages, size_t num_pages); +int btrfs_dirty_pages(struct btrfs_root *root, struct inode *inode, + struct page **pages, size_t num_pages, + loff_t pos, size_t write_bytes, + struct extent_state **cached); /* tree-defrag.c */ int btrfs_defrag_leaves(struct btrfs_trans_handle *trans, |