summaryrefslogtreecommitdiff
path: root/fs/iomap.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/iomap.c')
-rw-r--r--fs/iomap.c136
1 files changed, 0 insertions, 136 deletions
diff --git a/fs/iomap.c b/fs/iomap.c
index 521e90825dbe..d14d75a97ab3 100644
--- a/fs/iomap.c
+++ b/fs/iomap.c
@@ -1149,108 +1149,6 @@ out_unlock:
}
EXPORT_SYMBOL_GPL(iomap_page_mkwrite);
-struct fiemap_ctx {
- struct fiemap_extent_info *fi;
- struct iomap prev;
-};
-
-static int iomap_to_fiemap(struct fiemap_extent_info *fi,
- struct iomap *iomap, u32 flags)
-{
- switch (iomap->type) {
- case IOMAP_HOLE:
- /* skip holes */
- return 0;
- case IOMAP_DELALLOC:
- flags |= FIEMAP_EXTENT_DELALLOC | FIEMAP_EXTENT_UNKNOWN;
- break;
- case IOMAP_MAPPED:
- break;
- case IOMAP_UNWRITTEN:
- flags |= FIEMAP_EXTENT_UNWRITTEN;
- break;
- case IOMAP_INLINE:
- flags |= FIEMAP_EXTENT_DATA_INLINE;
- break;
- }
-
- if (iomap->flags & IOMAP_F_MERGED)
- flags |= FIEMAP_EXTENT_MERGED;
- if (iomap->flags & IOMAP_F_SHARED)
- flags |= FIEMAP_EXTENT_SHARED;
-
- return fiemap_fill_next_extent(fi, iomap->offset,
- iomap->addr != IOMAP_NULL_ADDR ? iomap->addr : 0,
- iomap->length, flags);
-}
-
-static loff_t
-iomap_fiemap_actor(struct inode *inode, loff_t pos, loff_t length, void *data,
- struct iomap *iomap)
-{
- struct fiemap_ctx *ctx = data;
- loff_t ret = length;
-
- if (iomap->type == IOMAP_HOLE)
- return length;
-
- ret = iomap_to_fiemap(ctx->fi, &ctx->prev, 0);
- ctx->prev = *iomap;
- switch (ret) {
- case 0: /* success */
- return length;
- case 1: /* extent array full */
- return 0;
- default:
- return ret;
- }
-}
-
-int iomap_fiemap(struct inode *inode, struct fiemap_extent_info *fi,
- loff_t start, loff_t len, const struct iomap_ops *ops)
-{
- struct fiemap_ctx ctx;
- loff_t ret;
-
- memset(&ctx, 0, sizeof(ctx));
- ctx.fi = fi;
- ctx.prev.type = IOMAP_HOLE;
-
- ret = fiemap_check_flags(fi, FIEMAP_FLAG_SYNC);
- if (ret)
- return ret;
-
- if (fi->fi_flags & FIEMAP_FLAG_SYNC) {
- ret = filemap_write_and_wait(inode->i_mapping);
- if (ret)
- return ret;
- }
-
- while (len > 0) {
- ret = iomap_apply(inode, start, len, IOMAP_REPORT, ops, &ctx,
- iomap_fiemap_actor);
- /* inode with no (attribute) mapping will give ENOENT */
- if (ret == -ENOENT)
- break;
- if (ret < 0)
- return ret;
- if (ret == 0)
- break;
-
- start += ret;
- len -= ret;
- }
-
- if (ctx.prev.type != IOMAP_HOLE) {
- ret = iomap_to_fiemap(fi, &ctx.prev, FIEMAP_EXTENT_LAST);
- if (ret < 0)
- return ret;
- }
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(iomap_fiemap);
-
/*
* Seek for SEEK_DATA / SEEK_HOLE within @page, starting at @lastoff.
* Returns true if found and updates @lastoff to the offset in file.
@@ -1999,37 +1897,3 @@ out_free_dio:
return ret;
}
EXPORT_SYMBOL_GPL(iomap_dio_rw);
-
-static loff_t
-iomap_bmap_actor(struct inode *inode, loff_t pos, loff_t length,
- void *data, struct iomap *iomap)
-{
- sector_t *bno = data, addr;
-
- if (iomap->type == IOMAP_MAPPED) {
- addr = (pos - iomap->offset + iomap->addr) >> inode->i_blkbits;
- if (addr > INT_MAX)
- WARN(1, "would truncate bmap result\n");
- else
- *bno = addr;
- }
- return 0;
-}
-
-/* legacy ->bmap interface. 0 is the error return (!) */
-sector_t
-iomap_bmap(struct address_space *mapping, sector_t bno,
- const struct iomap_ops *ops)
-{
- struct inode *inode = mapping->host;
- loff_t pos = bno << inode->i_blkbits;
- unsigned blocksize = i_blocksize(inode);
-
- if (filemap_write_and_wait(mapping))
- return 0;
-
- bno = 0;
- iomap_apply(inode, pos, blocksize, 0, ops, &bno, iomap_bmap_actor);
- return bno;
-}
-EXPORT_SYMBOL_GPL(iomap_bmap);