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f2fs: refactor extent_cache to support for read and more

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This patch prepares extent_cache to be ready for addition.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Jaegeuk Kim
2022-11-30 09:26:29 -08:00
committed by Jaegeuk Kim
parent de9b22351d
commit 484b267ce4
11 changed files with 471 additions and 308 deletions
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8
fs/f2fs/node.c
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@@ -86,9 +86,11 @@ bool f2fs_available_free_memory(struct f2fs_sb_info *sbi, int type)
mem_size >>= PAGE_SHIFT;
res = mem_size < ((avail_ram * nm_i->ram_thresh / 100) >> 1);
} else if (type == READ_EXTENT_CACHE) {
mem_size = (atomic_read(&sbi->total_ext_tree) *
struct extent_tree_info *eti = &sbi->extent_tree[EX_READ];
mem_size = (atomic_read(&eti->total_ext_tree) *
sizeof(struct extent_tree) +
atomic_read(&sbi->total_ext_node) *
atomic_read(&eti->total_ext_node) *
sizeof(struct extent_node)) >> PAGE_SHIFT;
res = mem_size < ((avail_ram * nm_i->ram_thresh / 100) >> 1);
} else if (type == DISCARD_CACHE) {
@@ -857,7 +859,7 @@ int f2fs_get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode)
blkaddr = data_blkaddr(dn->inode, dn->node_page,
dn->ofs_in_node + 1);
f2fs_update_extent_tree_range_compressed(dn->inode,
f2fs_update_read_extent_tree_range_compressed(dn->inode,
index, blkaddr,
F2FS_I(dn->inode)->i_cluster_size,
c_len);