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-rw-r--r--fs/btrfs/delalloc-space.c61
1 files changed, 32 insertions, 29 deletions
diff --git a/fs/btrfs/delalloc-space.c b/fs/btrfs/delalloc-space.c
index 118b2e20b2e1..7ddb1d104e8e 100644
--- a/fs/btrfs/delalloc-space.c
+++ b/fs/btrfs/delalloc-space.c
@@ -1,5 +1,6 @@
// SPDX-License-Identifier: GPL-2.0
+#include "messages.h"
#include "ctree.h"
#include "delalloc-space.h"
#include "block-rsv.h"
@@ -8,6 +9,7 @@
#include "transaction.h"
#include "qgroup.h"
#include "block-group.h"
+#include "fs.h"
/*
* HOW DOES THIS WORK
@@ -200,8 +202,8 @@ void btrfs_free_reserved_data_space(struct btrfs_inode *inode,
btrfs_qgroup_free_data(inode, reserved, start, len);
}
-/**
- * Release any excessive reservation
+/*
+ * Release any excessive reservations for an inode.
*
* @inode: the inode we need to release from
* @qgroup_free: free or convert qgroup meta. Unlike normal operation, qgroup
@@ -375,12 +377,12 @@ int btrfs_delalloc_reserve_metadata(struct btrfs_inode *inode, u64 num_bytes,
return 0;
}
-/**
- * Release a metadata reservation for an inode
+/*
+ * Release a metadata reservation for an inode.
*
- * @inode: the inode to release the reservation for.
- * @num_bytes: the number of bytes we are releasing.
- * @qgroup_free: free qgroup reservation or convert it to per-trans reservation
+ * @inode: the inode to release the reservation for.
+ * @num_bytes: the number of bytes we are releasing.
+ * @qgroup_free: free qgroup reservation or convert it to per-trans reservation
*
* This will release the metadata reservation for an inode. This can be called
* once we complete IO for a given set of bytes to release their metadata
@@ -403,10 +405,11 @@ void btrfs_delalloc_release_metadata(struct btrfs_inode *inode, u64 num_bytes,
btrfs_inode_rsv_release(inode, qgroup_free);
}
-/**
- * btrfs_delalloc_release_extents - release our outstanding_extents
- * @inode: the inode to balance the reservation for.
- * @num_bytes: the number of bytes we originally reserved with
+/*
+ * Release our outstanding_extents for an inode.
+ *
+ * @inode: the inode to balance the reservation for.
+ * @num_bytes: the number of bytes we originally reserved with
*
* When we reserve space we increase outstanding_extents for the extents we may
* add. Once we've set the range as delalloc or created our ordered extents we
@@ -431,30 +434,30 @@ void btrfs_delalloc_release_extents(struct btrfs_inode *inode, u64 num_bytes)
btrfs_inode_rsv_release(inode, true);
}
-/**
- * btrfs_delalloc_reserve_space - reserve data and metadata space for
- * delalloc
- * @inode: inode we're writing to
- * @start: start range we are writing to
- * @len: how long the range we are writing to
- * @reserved: mandatory parameter, record actually reserved qgroup ranges of
- * current reservation.
+/*
+ * Reserve data and metadata space for delalloc
+ *
+ * @inode: inode we're writing to
+ * @start: start range we are writing to
+ * @len: how long the range we are writing to
+ * @reserved: mandatory parameter, record actually reserved qgroup ranges of
+ * current reservation.
*
* This will do the following things
*
- * - reserve space in data space info for num bytes
- * and reserve precious corresponding qgroup space
+ * - reserve space in data space info for num bytes and reserve precious
+ * corresponding qgroup space
* (Done in check_data_free_space)
*
* - reserve space for metadata space, based on the number of outstanding
- * extents and how much csums will be needed
- * also reserve metadata space in a per root over-reserve method.
+ * extents and how much csums will be needed also reserve metadata space in a
+ * per root over-reserve method.
* - add to the inodes->delalloc_bytes
* - add it to the fs_info's delalloc inodes list.
* (Above 3 all done in delalloc_reserve_metadata)
*
* Return 0 for success
- * Return <0 for error(-ENOSPC or -EQUOT)
+ * Return <0 for error(-ENOSPC or -EDQUOT)
*/
int btrfs_delalloc_reserve_space(struct btrfs_inode *inode,
struct extent_changeset **reserved, u64 start, u64 len)
@@ -473,7 +476,7 @@ int btrfs_delalloc_reserve_space(struct btrfs_inode *inode,
return ret;
}
-/**
+/*
* Release data and metadata space for delalloc
*
* @inode: inode we're releasing space for
@@ -482,10 +485,10 @@ int btrfs_delalloc_reserve_space(struct btrfs_inode *inode,
* @len: length of the space already reserved
* @qgroup_free: should qgroup reserved-space also be freed
*
- * This function will release the metadata space that was not used and will
- * decrement ->delalloc_bytes and remove it from the fs_info delalloc_inodes
- * list if there are no delalloc bytes left.
- * Also it will handle the qgroup reserved space.
+ * Release the metadata space that was not used and will decrement
+ * ->delalloc_bytes and remove it from the fs_info->delalloc_inodes list if
+ * there are no delalloc bytes left. Also it will handle the qgroup reserved
+ * space.
*/
void btrfs_delalloc_release_space(struct btrfs_inode *inode,
struct extent_changeset *reserved,