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authorChris Mason <chris.mason@oracle.com>2008-01-08 15:46:30 -0500
committerChris Mason <chris.mason@oracle.com>2008-09-25 11:03:59 -0400
commitdc17ff8f11d129db9e83ab7244769e4eae05e14d (patch)
tree622e70100d6082e371a6ca62b02fd57e0c37f8dc /fs/btrfs/file.c
parente4204dedbbaa3a614605cb83cc0ac5161af6b4e6 (diff)
downloadop-kernel-dev-dc17ff8f11d129db9e83ab7244769e4eae05e14d.zip
op-kernel-dev-dc17ff8f11d129db9e83ab7244769e4eae05e14d.tar.gz
Btrfs: Add data=ordered support
This forces file data extents down the disk along with the metadata that references them. The current implementation is fairly simple, and just writes out all of the dirty pages in an inode before the commit. Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/file.c')
-rw-r--r--fs/btrfs/file.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 94c9337..0a5f4de 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -34,6 +34,7 @@
#include "disk-io.h"
#include "transaction.h"
#include "btrfs_inode.h"
+#include "ordered-data.h"
#include "ioctl.h"
#include "print-tree.h"
@@ -329,6 +330,7 @@ static int noinline dirty_and_release_pages(struct btrfs_trans_handle *trans,
root->fs_info->delalloc_bytes += (end_of_last_block + 1 -
start_pos) - existing_delalloc;
spin_unlock(&root->fs_info->delalloc_lock);
+ btrfs_add_ordered_inode(inode);
} else {
u64 aligned_end;
/* step one, delete the existing extents in this range */
@@ -724,8 +726,6 @@ static ssize_t btrfs_file_write(struct file *file, const char __user *buf,
pages = kmalloc(nrptrs * sizeof(struct page *), GFP_KERNEL);
- down_read(&BTRFS_I(inode)->root->snap_sem);
-
mutex_lock(&inode->i_mutex);
first_index = pos >> PAGE_CACHE_SHIFT;
last_index = (pos + count) >> PAGE_CACHE_SHIFT;
@@ -804,7 +804,6 @@ static ssize_t btrfs_file_write(struct file *file, const char __user *buf,
}
out:
mutex_unlock(&inode->i_mutex);
- up_read(&BTRFS_I(inode)->root->snap_sem);
out_nolock:
kfree(pages);
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