STATIC int
xfs_dir2_sf_getdents(
- xfs_inode_t *dp, /* incore directory inode */
+ struct xfs_da_args *args,
struct dir_context *ctx)
{
int i; /* shortform entry number */
- xfs_mount_t *mp; /* filesystem mount point */
+ struct xfs_inode *dp = args->dp; /* incore directory inode */
xfs_dir2_dataptr_t off; /* current entry's offset */
xfs_dir2_sf_entry_t *sfep; /* shortform directory entry */
xfs_dir2_sf_hdr_t *sfp; /* shortform structure */
xfs_dir2_dataptr_t dot_offset;
xfs_dir2_dataptr_t dotdot_offset;
xfs_ino_t ino;
- struct xfs_da_geometry *geo;
-
- mp = dp->i_mount;
- geo = mp->m_dir_geo;
+ struct xfs_da_geometry *geo = args->geo;
ASSERT(dp->i_df.if_flags & XFS_IFINLINE);
/*
* Give up if the directory is way too short.
*/
if (dp->i_d.di_size < offsetof(xfs_dir2_sf_hdr_t, parent)) {
- ASSERT(XFS_FORCED_SHUTDOWN(mp));
+ ASSERT(XFS_FORCED_SHUTDOWN(dp->i_mount));
return XFS_ERROR(EIO);
}
filetype = dp->d_ops->sf_get_ftype(sfep);
ctx->pos = off & 0x7fffffff;
if (!dir_emit(ctx, (char *)sfep->name, sfep->namelen, ino,
- xfs_dir3_get_dtype(mp, filetype)))
+ xfs_dir3_get_dtype(dp->i_mount, filetype)))
return 0;
sfep = dp->d_ops->sf_nextentry(sfp, sfep);
}
ctx->pos = xfs_dir2_db_off_to_dataptr(geo, geo->datablk + 1, 0) &
- 0x7fffffff;
+ 0x7fffffff;
return 0;
}
*/
STATIC int
xfs_dir2_block_getdents(
- xfs_inode_t *dp, /* incore inode */
+ struct xfs_da_args *args,
struct dir_context *ctx)
{
+ struct xfs_inode *dp = args->dp; /* incore directory inode */
xfs_dir2_data_hdr_t *hdr; /* block header */
struct xfs_buf *bp; /* buffer for block */
xfs_dir2_block_tail_t *btp; /* block tail */
xfs_dir2_data_unused_t *dup; /* block unused entry */
char *endptr; /* end of the data entries */
int error; /* error return value */
- xfs_mount_t *mp; /* filesystem mount point */
char *ptr; /* current data entry */
int wantoff; /* starting block offset */
xfs_off_t cook;
- struct xfs_da_geometry *geo;
+ struct xfs_da_geometry *geo = args->geo;
- mp = dp->i_mount;
- geo = mp->m_dir_geo;
/*
* If the block number in the offset is out of range, we're done.
*/
*/
if (!dir_emit(ctx, (char *)dep->name, dep->namelen,
be64_to_cpu(dep->inumber),
- xfs_dir3_get_dtype(mp, filetype))) {
+ xfs_dir3_get_dtype(dp->i_mount, filetype))) {
xfs_trans_brelse(NULL, bp);
return 0;
}
* Set the offset to a non-existent block 1 and return.
*/
ctx->pos = xfs_dir2_db_off_to_dataptr(geo, geo->datablk + 1, 0) &
- 0x7fffffff;
+ 0x7fffffff;
xfs_trans_brelse(NULL, bp);
return 0;
}
STATIC int
xfs_dir2_leaf_readbuf(
- struct xfs_inode *dp,
+ struct xfs_da_args *args,
size_t bufsize,
struct xfs_dir2_leaf_map_info *mip,
xfs_dir2_off_t *curoff,
struct xfs_buf **bpp)
{
- struct xfs_mount *mp = dp->i_mount;
+ struct xfs_inode *dp = args->dp;
struct xfs_buf *bp = *bpp;
struct xfs_bmbt_irec *map = mip->map;
struct blk_plug plug;
int length;
int i;
int j;
- struct xfs_da_geometry *geo = mp->m_dir_geo;
+ struct xfs_da_geometry *geo = args->geo;
/*
* If we have a buffer, we need to release it and
/*
* Recalculate the readahead blocks wanted.
*/
- mip->ra_want = howmany(bufsize + geo->blksize,
- mp->m_sb.sb_blocksize) - 1;
+ mip->ra_want = howmany(bufsize + geo->blksize, (1 << geo->fsblog)) - 1;
ASSERT(mip->ra_want >= 0);
/*
mip->curdb = xfs_dir2_da_to_db(geo, map->br_startoff);
error = xfs_dir3_data_read(NULL, dp, map->br_startoff,
map->br_blockcount >= geo->fsbcount ?
- XFS_FSB_TO_DADDR(mp, map->br_startblock) : -1, &bp);
-
+ XFS_FSB_TO_DADDR(dp->i_mount, map->br_startblock) :
+ -1, &bp);
/*
* Should just skip over the data block instead of giving up.
*/
map[mip->ra_index].br_blockcount >= geo->fsbcount) {
xfs_dir3_data_readahead(dp,
map[mip->ra_index].br_startoff + mip->ra_offset,
- XFS_FSB_TO_DADDR(mp,
+ XFS_FSB_TO_DADDR(dp->i_mount,
map[mip->ra_index].br_startblock +
mip->ra_offset));
mip->ra_current = i;
*/
STATIC int
xfs_dir2_leaf_getdents(
- xfs_inode_t *dp, /* incore directory inode */
+ struct xfs_da_args *args,
struct dir_context *ctx,
size_t bufsize)
{
+ struct xfs_inode *dp = args->dp;
struct xfs_buf *bp = NULL; /* data block buffer */
xfs_dir2_data_hdr_t *hdr; /* data block header */
xfs_dir2_data_entry_t *dep; /* data entry */
xfs_dir2_data_unused_t *dup; /* unused entry */
int error = 0; /* error return value */
int length; /* temporary length value */
- xfs_mount_t *mp; /* filesystem mount point */
int byteoff; /* offset in current block */
xfs_dir2_off_t curoff; /* current overall offset */
xfs_dir2_off_t newoff; /* new curoff after new blk */
char *ptr = NULL; /* pointer to current data */
struct xfs_dir2_leaf_map_info *map_info;
- struct xfs_da_geometry *geo;
+ struct xfs_da_geometry *geo = args->geo;
/*
* If the offset is at or past the largest allowed value,
if (ctx->pos >= XFS_DIR2_MAX_DATAPTR)
return 0;
- mp = dp->i_mount;
- geo = mp->m_dir_geo;
-
/*
* Set up to bmap a number of blocks based on the caller's
* buffer size, the directory block size, and the filesystem
* block size.
*/
- length = howmany(bufsize + geo->blksize, mp->m_sb.sb_blocksize);
+ length = howmany(bufsize + geo->blksize, (1 << geo->fsblog));
map_info = kmem_zalloc(offsetof(struct xfs_dir2_leaf_map_info, map) +
(length * sizeof(struct xfs_bmbt_irec)),
KM_SLEEP | KM_NOFS);
*/
if (!bp || ptr >= (char *)bp->b_addr + geo->blksize) {
- error = xfs_dir2_leaf_readbuf(dp, bufsize, map_info,
+ error = xfs_dir2_leaf_readbuf(args, bufsize, map_info,
&curoff, &bp);
if (error || !map_info->map_valid)
break;
/*
* Having done a read, we need to set a new offset.
*/
- newoff = xfs_dir2_db_off_to_byte(mp->m_dir_geo,
+ newoff = xfs_dir2_db_off_to_byte(geo,
map_info->curdb, 0);
/*
* Start of the current block.
* Find our position in the block.
*/
ptr = (char *)dp->d_ops->data_entry_p(hdr);
- byteoff = xfs_dir2_byte_to_off(mp->m_dir_geo, curoff);
+ byteoff = xfs_dir2_byte_to_off(geo, curoff);
/*
* Skip past the header.
*/
ctx->pos = xfs_dir2_byte_to_dataptr(curoff) & 0x7fffffff;
if (!dir_emit(ctx, (char *)dep->name, dep->namelen,
be64_to_cpu(dep->inumber),
- xfs_dir3_get_dtype(mp, filetype)))
+ xfs_dir3_get_dtype(dp->i_mount, filetype)))
break;
/*
*/
int
xfs_readdir(
- xfs_inode_t *dp,
- struct dir_context *ctx,
- size_t bufsize)
+ struct xfs_inode *dp,
+ struct dir_context *ctx,
+ size_t bufsize)
{
- int rval; /* return value */
- int v; /* type-checking value */
- uint lock_mode;
+ struct xfs_da_args args = { NULL };
+ int rval;
+ int v;
+ uint lock_mode;
trace_xfs_readdir(dp);
ASSERT(S_ISDIR(dp->i_d.di_mode));
XFS_STATS_INC(xs_dir_getdents);
+ args.dp = dp;
+ args.geo = dp->i_mount->m_dir_geo;
+
lock_mode = xfs_ilock_data_map_shared(dp);
if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL)
- rval = xfs_dir2_sf_getdents(dp, ctx);
- else if ((rval = xfs_dir2_isblock(dp, &v)))
+ rval = xfs_dir2_sf_getdents(&args, ctx);
+ else if ((rval = xfs_dir2_isblock(&args, &v)))
;
else if (v)
- rval = xfs_dir2_block_getdents(dp, ctx);
+ rval = xfs_dir2_block_getdents(&args, ctx);
else
- rval = xfs_dir2_leaf_getdents(dp, ctx, bufsize);
+ rval = xfs_dir2_leaf_getdents(&args, ctx, bufsize);
xfs_iunlock(dp, lock_mode);
return rval;
projects / firefly-linux-kernel-4.4.55.git / blobdiff