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f2fs: reserve the xattr space dynamically

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This patch enables the number of direct pointers inside on-disk inode block to
be changed dynamically according to the size of inline xattr space.

The number of direct pointers, ADDRS_PER_INODE, can be changed only if the file
has inline xattr flag.

The number of direct pointers that will be used by inline xattrs is defined as
F2FS_INLINE_XATTR_ADDRS.
Current patch assigns F2FS_INLINE_XATTR_ADDRS to 0 temporarily.

Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
This commit is contained in:
Jaegeuk Kim
2013-08-12 21:08:03 +09:00
parent 444c580f7e
commit de93653fe3
8 changed files with 45 additions and 29 deletions
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9
fs/f2fs/node.c
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@@ -315,9 +315,10 @@ cache:
* The maximum depth is four.
* Offset[0] will have raw inode offset.
*/
static int get_node_path(long block, int offset[4], unsigned int noffset[4])
static int get_node_path(struct f2fs_inode_info *fi, long block,
int offset[4], unsigned int noffset[4])
{
const long direct_index = ADDRS_PER_INODE;
const long direct_index = ADDRS_PER_INODE(fi);
const long direct_blks = ADDRS_PER_BLOCK;
const long dptrs_per_blk = NIDS_PER_BLOCK;
const long indirect_blks = ADDRS_PER_BLOCK * NIDS_PER_BLOCK;
@@ -405,7 +406,7 @@ int get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode)
int level, i;
int err = 0;
level = get_node_path(index, offset, noffset);
level = get_node_path(F2FS_I(dn->inode), index, offset, noffset);
nids[0] = dn->inode->i_ino;
npage[0] = dn->inode_page;
@@ -687,7 +688,7 @@ int truncate_inode_blocks(struct inode *inode, pgoff_t from)
trace_f2fs_truncate_inode_blocks_enter(inode, from);
level = get_node_path(from, offset, noffset);
level = get_node_path(F2FS_I(inode), from, offset, noffset);
restart:
page = get_node_page(sbi, inode->i_ino);
if (IS_ERR(page)) {