diff options
Diffstat (limited to 'fs/nilfs2')
| -rw-r--r-- | fs/nilfs2/dir.c | 25 | ||||
| -rw-r--r-- | fs/nilfs2/gcdat.c | 2 | ||||
| -rw-r--r-- | fs/nilfs2/inode.c | 78 | ||||
| -rw-r--r-- | fs/nilfs2/nilfs.h | 2 | ||||
| -rw-r--r-- | fs/nilfs2/recovery.c | 11 | ||||
| -rw-r--r-- | fs/nilfs2/super.c | 20 |
6 files changed, 80 insertions, 58 deletions
diff --git a/fs/nilfs2/dir.c b/fs/nilfs2/dir.c index b60277b..cb003c8 100644 --- a/fs/nilfs2/dir.c +++ b/fs/nilfs2/dir.c @@ -80,23 +80,10 @@ static unsigned nilfs_last_byte(struct inode *inode, unsigned long page_nr) return last_byte; } -static int nilfs_prepare_chunk_uninterruptible(struct page *page, - struct address_space *mapping, - unsigned from, unsigned to) +static int nilfs_prepare_chunk(struct page *page, unsigned from, unsigned to) { loff_t pos = page_offset(page) + from; - return block_write_begin(NULL, mapping, pos, to - from, - AOP_FLAG_UNINTERRUPTIBLE, &page, - NULL, nilfs_get_block); -} - -static int nilfs_prepare_chunk(struct page *page, - struct address_space *mapping, - unsigned from, unsigned to) -{ - loff_t pos = page_offset(page) + from; - return block_write_begin(NULL, mapping, pos, to - from, 0, &page, - NULL, nilfs_get_block); + return __block_write_begin(page, pos, to - from, nilfs_get_block); } static void nilfs_commit_chunk(struct page *page, @@ -447,7 +434,7 @@ void nilfs_set_link(struct inode *dir, struct nilfs_dir_entry *de, int err; lock_page(page); - err = nilfs_prepare_chunk_uninterruptible(page, mapping, from, to); + err = nilfs_prepare_chunk(page, from, to); BUG_ON(err); de->inode = cpu_to_le64(inode->i_ino); nilfs_set_de_type(de, inode); @@ -528,7 +515,7 @@ int nilfs_add_link(struct dentry *dentry, struct inode *inode) got_it: from = (char *)de - (char *)page_address(page); to = from + rec_len; - err = nilfs_prepare_chunk(page, page->mapping, from, to); + err = nilfs_prepare_chunk(page, from, to); if (err) goto out_unlock; if (de->inode) { @@ -586,7 +573,7 @@ int nilfs_delete_entry(struct nilfs_dir_entry *dir, struct page *page) if (pde) from = (char *)pde - (char *)page_address(page); lock_page(page); - err = nilfs_prepare_chunk(page, mapping, from, to); + err = nilfs_prepare_chunk(page, from, to); BUG_ON(err); if (pde) pde->rec_len = nilfs_rec_len_to_disk(to - from); @@ -614,7 +601,7 @@ int nilfs_make_empty(struct inode *inode, struct inode *parent) if (!page) return -ENOMEM; - err = nilfs_prepare_chunk(page, mapping, 0, chunk_size); + err = nilfs_prepare_chunk(page, 0, chunk_size); if (unlikely(err)) { unlock_page(page); goto fail; diff --git a/fs/nilfs2/gcdat.c b/fs/nilfs2/gcdat.c index dd5f7e0..84a45d1 100644 --- a/fs/nilfs2/gcdat.c +++ b/fs/nilfs2/gcdat.c @@ -78,7 +78,7 @@ void nilfs_clear_gcdat_inode(struct the_nilfs *nilfs) struct inode *gcdat = nilfs->ns_gc_dat; struct nilfs_inode_info *gii = NILFS_I(gcdat); - gcdat->i_state = I_CLEAR; + gcdat->i_state = I_FREEING | I_CLEAR; gii->i_flags = 0; nilfs_palloc_clear_cache(gcdat); diff --git a/fs/nilfs2/inode.c b/fs/nilfs2/inode.c index 39e038a..eccb2f2 100644 --- a/fs/nilfs2/inode.c +++ b/fs/nilfs2/inode.c @@ -27,6 +27,7 @@ #include <linux/writeback.h> #include <linux/uio.h> #include "nilfs.h" +#include "btnode.h" #include "segment.h" #include "page.h" #include "mdt.h" @@ -197,11 +198,15 @@ static int nilfs_write_begin(struct file *file, struct address_space *mapping, if (unlikely(err)) return err; - *pagep = NULL; - err = block_write_begin(file, mapping, pos, len, flags, pagep, - fsdata, nilfs_get_block); - if (unlikely(err)) + err = block_write_begin(mapping, pos, len, flags, pagep, + nilfs_get_block); + if (unlikely(err)) { + loff_t isize = mapping->host->i_size; + if (pos + len > isize) + vmtruncate(mapping->host, isize); + nilfs_transaction_abort(inode->i_sb); + } return err; } @@ -237,6 +242,19 @@ nilfs_direct_IO(int rw, struct kiocb *iocb, const struct iovec *iov, /* Needs synchronization with the cleaner */ size = blockdev_direct_IO(rw, iocb, inode, inode->i_sb->s_bdev, iov, offset, nr_segs, nilfs_get_block, NULL); + + /* + * In case of error extending write may have instantiated a few + * blocks outside i_size. Trim these off again. + */ + if (unlikely((rw & WRITE) && size < 0)) { + loff_t isize = i_size_read(inode); + loff_t end = offset + iov_length(iov, nr_segs); + + if (end > isize) + vmtruncate(inode, isize); + } + return size; } @@ -337,7 +355,6 @@ void nilfs_free_inode(struct inode *inode) struct super_block *sb = inode->i_sb; struct nilfs_sb_info *sbi = NILFS_SB(sb); - clear_inode(inode); /* XXX: check error code? Is there any thing I can do? */ (void) nilfs_ifile_delete_inode(sbi->s_ifile, inode->i_ino); atomic_dec(&sbi->s_inodes_count); @@ -597,16 +614,34 @@ void nilfs_truncate(struct inode *inode) But truncate has no return value. */ } -void nilfs_delete_inode(struct inode *inode) +static void nilfs_clear_inode(struct inode *inode) +{ + struct nilfs_inode_info *ii = NILFS_I(inode); + + /* + * Free resources allocated in nilfs_read_inode(), here. + */ + BUG_ON(!list_empty(&ii->i_dirty)); + brelse(ii->i_bh); + ii->i_bh = NULL; + + if (test_bit(NILFS_I_BMAP, &ii->i_state)) + nilfs_bmap_clear(ii->i_bmap); + + nilfs_btnode_cache_clear(&ii->i_btnode_cache); +} + +void nilfs_evict_inode(struct inode *inode) { struct nilfs_transaction_info ti; struct super_block *sb = inode->i_sb; struct nilfs_inode_info *ii = NILFS_I(inode); - if (unlikely(is_bad_inode(inode))) { + if (inode->i_nlink || unlikely(is_bad_inode(inode))) { if (inode->i_data.nrpages) truncate_inode_pages(&inode->i_data, 0); - clear_inode(inode); + end_writeback(inode); + nilfs_clear_inode(inode); return; } nilfs_transaction_begin(sb, &ti, 0); /* never fails */ @@ -616,6 +651,8 @@ void nilfs_delete_inode(struct inode *inode) nilfs_truncate_bmap(ii, 0); nilfs_mark_inode_dirty(inode); + end_writeback(inode); + nilfs_clear_inode(inode); nilfs_free_inode(inode); /* nilfs_free_inode() marks inode buffer dirty */ if (IS_SYNC(inode)) @@ -639,14 +676,27 @@ int nilfs_setattr(struct dentry *dentry, struct iattr *iattr) err = nilfs_transaction_begin(sb, &ti, 0); if (unlikely(err)) return err; - err = inode_setattr(inode, iattr); - if (!err && (iattr->ia_valid & ATTR_MODE)) + + if ((iattr->ia_valid & ATTR_SIZE) && + iattr->ia_size != i_size_read(inode)) { + err = vmtruncate(inode, iattr->ia_size); + if (unlikely(err)) + goto out_err; + } + + setattr_copy(inode, iattr); + mark_inode_dirty(inode); + + if (iattr->ia_valid & ATTR_MODE) { err = nilfs_acl_chmod(inode); - if (likely(!err)) - err = nilfs_transaction_commit(sb); - else - nilfs_transaction_abort(sb); + if (unlikely(err)) + goto out_err; + } + + return nilfs_transaction_commit(sb); +out_err: + nilfs_transaction_abort(sb); return err; } diff --git a/fs/nilfs2/nilfs.h b/fs/nilfs2/nilfs.h index 0842d77..d3d5404 100644 --- a/fs/nilfs2/nilfs.h +++ b/fs/nilfs2/nilfs.h @@ -250,7 +250,7 @@ extern void nilfs_write_inode_common(struct inode *, struct nilfs_inode *, int); extern struct inode *nilfs_iget(struct super_block *, unsigned long); extern void nilfs_update_inode(struct inode *, struct buffer_head *); extern void nilfs_truncate(struct inode *); -extern void nilfs_delete_inode(struct inode *); +extern void nilfs_evict_inode(struct inode *); extern int nilfs_setattr(struct dentry *, struct iattr *); extern int nilfs_load_inode_block(struct nilfs_sb_info *, struct inode *, struct buffer_head **); diff --git a/fs/nilfs2/recovery.c b/fs/nilfs2/recovery.c index 83e3d8c..d0c35ef 100644 --- a/fs/nilfs2/recovery.c +++ b/fs/nilfs2/recovery.c @@ -523,11 +523,14 @@ static int nilfs_recover_dsync_blocks(struct the_nilfs *nilfs, } pos = rb->blkoff << inode->i_blkbits; - page = NULL; - err = block_write_begin(NULL, inode->i_mapping, pos, blocksize, - 0, &page, NULL, nilfs_get_block); - if (unlikely(err)) + err = block_write_begin(inode->i_mapping, pos, blocksize, + 0, &page, nilfs_get_block); + if (unlikely(err)) { + loff_t isize = inode->i_size; + if (pos + blocksize > isize) + vmtruncate(inode, isize); goto failed_inode; + } err = nilfs_recovery_copy_block(nilfs, rb, page); if (unlikely(err)) diff --git a/fs/nilfs2/super.c b/fs/nilfs2/super.c index 26078b3..1fa86b9 100644 --- a/fs/nilfs2/super.c +++ b/fs/nilfs2/super.c @@ -171,23 +171,6 @@ void nilfs_destroy_inode(struct inode *inode) kmem_cache_free(nilfs_inode_cachep, NILFS_I(inode)); } -static void nilfs_clear_inode(struct inode *inode) -{ - struct nilfs_inode_info *ii = NILFS_I(inode); - - /* - * Free resources allocated in nilfs_read_inode(), here. - */ - BUG_ON(!list_empty(&ii->i_dirty)); - brelse(ii->i_bh); - ii->i_bh = NULL; - - if (test_bit(NILFS_I_BMAP, &ii->i_state)) - nilfs_bmap_clear(ii->i_bmap); - - nilfs_btnode_cache_clear(&ii->i_btnode_cache); -} - static int nilfs_sync_super(struct nilfs_sb_info *sbi, int flag) { struct the_nilfs *nilfs = sbi->s_nilfs; @@ -548,7 +531,7 @@ static const struct super_operations nilfs_sops = { /* .write_inode = nilfs_write_inode, */ /* .put_inode = nilfs_put_inode, */ /* .drop_inode = nilfs_drop_inode, */ - .delete_inode = nilfs_delete_inode, + .evict_inode = nilfs_evict_inode, .put_super = nilfs_put_super, /* .write_super = nilfs_write_super, */ .sync_fs = nilfs_sync_fs, @@ -556,7 +539,6 @@ static const struct super_operations nilfs_sops = { /* .unlockfs */ .statfs = nilfs_statfs, .remount_fs = nilfs_remount, - .clear_inode = nilfs_clear_inode, /* .umount_begin */ .show_options = nilfs_show_options }; |