int err;
int jbegin_failure = 0;
- if (!S_ISREG(inode->i_mode))
- BUG();
+ BUG_ON(!S_ISREG(inode->i_mode));
/* fast out for when nothing needs to be done */
if ((atomic_read(&inode->i_count) > 1 ||
return 0;
}
- reiserfs_write_lock(inode->i_sb);
mutex_lock(&inode->i_mutex);
+
+ mutex_lock(&(REISERFS_I(inode)->i_mmap));
+ if (REISERFS_I(inode)->i_flags & i_ever_mapped)
+ REISERFS_I(inode)->i_flags &= ~i_pack_on_close_mask;
+
+ reiserfs_write_lock(inode->i_sb);
/* freeing preallocation only involves relogging blocks that
* are already in the current transaction. preallocation gets
* freed at the end of each transaction, so it is impossible for
igrab(inode);
reiserfs_warning(inode->i_sb,
"pinning inode %lu because the "
- "preallocation can't be freed");
+ "preallocation can't be freed",
+ inode->i_ino);
goto out;
}
}
err = reiserfs_truncate_file(inode, 0);
}
out:
+ mutex_unlock(&(REISERFS_I(inode)->i_mmap));
mutex_unlock(&inode->i_mutex);
reiserfs_write_unlock(inode->i_sb);
return err;
}
+static int reiserfs_file_mmap(struct file *file, struct vm_area_struct *vma)
+{
+ struct inode *inode;
+
+ inode = file->f_path.dentry->d_inode;
+ mutex_lock(&(REISERFS_I(inode)->i_mmap));
+ REISERFS_I(inode)->i_flags |= i_ever_mapped;
+ mutex_unlock(&(REISERFS_I(inode)->i_mmap));
+
+ return generic_file_mmap(file, vma);
+}
+
static void reiserfs_vfs_truncate_file(struct inode *inode)
{
reiserfs_truncate_file(inode, 1);
int n_err;
int barrier_done;
- if (!S_ISREG(p_s_inode->i_mode))
- BUG();
+ BUG_ON(!S_ISREG(p_s_inode->i_mode));
n_err = sync_mapping_buffers(p_s_inode->i_mapping);
reiserfs_write_lock(p_s_inode->i_sb);
barrier_done = reiserfs_commit_for_inode(p_s_inode);
reiserfs_write_unlock(p_s_inode->i_sb);
- if (barrier_done != 1)
+ if (barrier_done != 1 && reiserfs_barrier_flush(p_s_inode->i_sb))
blkdev_issue_flush(p_s_inode->i_sb->s_bdev, NULL);
if (barrier_done < 0)
return barrier_done;
/* area filled with zeroes, to supply as list of zero blocknumbers
We allocate it outside of loop just in case loop would spin for
several iterations. */
- char *zeros = kmalloc(to_paste * UNFM_P_SIZE, GFP_ATOMIC); // We cannot insert more than MAX_ITEM_LEN bytes anyway.
+ char *zeros = kzalloc(to_paste * UNFM_P_SIZE, GFP_ATOMIC); // We cannot insert more than MAX_ITEM_LEN bytes anyway.
if (!zeros) {
res = -ENOMEM;
goto error_exit_free_blocks;
}
- memset(zeros, 0, to_paste * UNFM_P_SIZE);
do {
to_paste =
min_t(__u64, hole_size,
we restart it. This will also free the path. */
if (journal_transaction_should_end
(th, th->t_blocks_allocated)) {
+ inode->i_size = cpu_key_k_offset(&key) +
+ (to_paste << inode->i_blkbits);
res =
restart_transaction(th, inode,
&path);
// this sets the proper flags for O_SYNC to trigger a commit
mark_inode_dirty(inode);
reiserfs_write_unlock(inode->i_sb);
- } else
+ } else {
+ reiserfs_write_lock(inode->i_sb);
+ reiserfs_update_inode_transaction(inode);
mark_inode_dirty(inode);
+ reiserfs_write_unlock(inode->i_sb);
+ }
sd_update = 1;
}
char *kaddr = kmap_atomic(prepared_pages[0], KM_USER0);
memset(kaddr, 0, from);
kunmap_atomic(kaddr, KM_USER0);
+ flush_dcache_page(prepared_pages[0]);
}
if (to != PAGE_CACHE_SIZE) { /* Last page needs to be partially zeroed */
char *kaddr =
KM_USER0);
memset(kaddr + to, 0, PAGE_CACHE_SIZE - to);
kunmap_atomic(kaddr, KM_USER0);
+ flush_dcache_page(prepared_pages[num_pages - 1]);
}
/* Since all blocks are new - use already calculated value */
memset(kaddr + block_start, 0,
from - block_start);
kunmap_atomic(kaddr, KM_USER0);
+ flush_dcache_page(prepared_pages[0]);
set_buffer_uptodate(bh);
}
}
KM_USER0);
memset(kaddr + to, 0, block_end - to);
kunmap_atomic(kaddr, KM_USER0);
+ flush_dcache_page(prepared_pages[num_pages - 1]);
set_buffer_uptodate(bh);
}
}
loff_t pos; // Current position in the file.
ssize_t res; // return value of various functions that we call.
int err = 0;
- struct inode *inode = file->f_dentry->d_inode; // Inode of the file that we are writing to.
+ struct inode *inode = file->f_path.dentry->d_inode; // Inode of the file that we are writing to.
/* To simplify coding at this time, we store
locked pages in array for now */
struct page *prepared_pages[REISERFS_WRITE_PAGES_AT_A_TIME];
count = MAX_NON_LFS - (unsigned long)*ppos;
}
- if (file->f_flags & O_DIRECT) { // Direct IO needs treatment
- ssize_t result, after_file_end = 0;
- if ((*ppos + count >= inode->i_size)
- || (file->f_flags & O_APPEND)) {
- /* If we are appending a file, we need to put this savelink in here.
- If we will crash while doing direct io, finish_unfinished will
- cut the garbage from the file end. */
- reiserfs_write_lock(inode->i_sb);
- err =
- journal_begin(&th, inode->i_sb,
- JOURNAL_PER_BALANCE_CNT);
- if (err) {
- reiserfs_write_unlock(inode->i_sb);
- return err;
- }
- reiserfs_update_inode_transaction(inode);
- add_save_link(&th, inode, 1 /* Truncate */ );
- after_file_end = 1;
- err =
- journal_end(&th, inode->i_sb,
- JOURNAL_PER_BALANCE_CNT);
- reiserfs_write_unlock(inode->i_sb);
- if (err)
- return err;
- }
- result = generic_file_write(file, buf, count, ppos);
-
- if (after_file_end) { /* Now update i_size and remove the savelink */
- struct reiserfs_transaction_handle th;
- reiserfs_write_lock(inode->i_sb);
- err = journal_begin(&th, inode->i_sb, 1);
- if (err) {
- reiserfs_write_unlock(inode->i_sb);
- return err;
- }
- reiserfs_update_inode_transaction(inode);
- mark_inode_dirty(inode);
- err = journal_end(&th, inode->i_sb, 1);
- if (err) {
- reiserfs_write_unlock(inode->i_sb);
- return err;
- }
- err = remove_save_link(inode, 1 /* truncate */ );
- reiserfs_write_unlock(inode->i_sb);
- if (err)
- return err;
- }
-
- return result;
- }
+ if (file->f_flags & O_DIRECT)
+ return do_sync_write(file, buf, count, ppos);
if (unlikely((ssize_t) count < 0))
return -EINVAL;
if (count == 0)
goto out;
- res = remove_suid(file->f_dentry);
+ res = remove_suid(file->f_path.dentry);
if (res)
goto out;
buf += write_bytes;
*ppos = pos += write_bytes;
count -= write_bytes;
- balance_dirty_pages_ratelimited(inode->i_mapping);
+ balance_dirty_pages_ratelimited_nr(inode->i_mapping, num_pages);
}
/* this is only true on error */
}
}
- if ((file->f_flags & O_SYNC) || IS_SYNC(inode))
- res =
- generic_osync_inode(inode, file->f_mapping,
- OSYNC_METADATA | OSYNC_DATA);
+ if (likely(res >= 0) &&
+ (unlikely((file->f_flags & O_SYNC) || IS_SYNC(inode))))
+ res = generic_osync_inode(inode, file->f_mapping,
+ OSYNC_METADATA | OSYNC_DATA);
mutex_unlock(&inode->i_mutex);
reiserfs_async_progress_wait(inode->i_sb);
return res;
}
-static ssize_t reiserfs_aio_write(struct kiocb *iocb, const char __user * buf,
- size_t count, loff_t pos)
-{
- return generic_file_aio_write(iocb, buf, count, pos);
-}
-
-struct file_operations reiserfs_file_operations = {
- .read = generic_file_read,
+const struct file_operations reiserfs_file_operations = {
+ .read = do_sync_read,
.write = reiserfs_file_write,
.ioctl = reiserfs_ioctl,
- .mmap = generic_file_mmap,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = reiserfs_compat_ioctl,
+#endif
+ .mmap = reiserfs_file_mmap,
+ .open = generic_file_open,
.release = reiserfs_file_release,
.fsync = reiserfs_sync_file,
.sendfile = generic_file_sendfile,
+ .sendpage = generic_file_sendpage,
.aio_read = generic_file_aio_read,
- .aio_write = reiserfs_aio_write,
+ .aio_write = generic_file_aio_write,
+ .splice_read = generic_file_splice_read,
+ .splice_write = generic_file_splice_write,
};
struct inode_operations reiserfs_file_inode_operations = {
git://git.onelab.eu / linux-2.6.git / blobdiff