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f2fs: add a f2fs_lookup_extent_cache_block helper

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All but three callers of f2fs_lookup_extent_cache just want the block
address.  Add a small helper to simplify them.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Christoph Hellwig 2022-11-28 10:15:14 +01:00 committed by Jaegeuk Kim
parent bc29835a9d
commit 04a91ab016
4 changed files with 33 additions and 36 deletions
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51
fs/f2fs/data.c
View File

@ -1214,14 +1214,9 @@ int f2fs_reserve_block(struct dnode_of_data *dn, pgoff_t index)
int f2fs_get_block(struct dnode_of_data *dn, pgoff_t index)
{
struct extent_info ei = {0, };
struct inode *inode = dn->inode;
if (f2fs_lookup_read_extent_cache(inode, index, &ei)) {
dn->data_blkaddr = ei.blk + index - ei.fofs;
if (f2fs_lookup_read_extent_cache_block(dn->inode, index,
&dn->data_blkaddr))
return 0;
}
return f2fs_reserve_block(dn, index);
}
@ -1232,15 +1227,14 @@ struct page *f2fs_get_read_data_page(struct inode *inode, pgoff_t index,
struct address_space *mapping = inode->i_mapping;
struct dnode_of_data dn;
struct page *page;
struct extent_info ei = {0, };
int err;
page = f2fs_grab_cache_page(mapping, index, for_write);
if (!page)
return ERR_PTR(-ENOMEM);
if (f2fs_lookup_read_extent_cache(inode, index, &ei)) {
dn.data_blkaddr = ei.blk + index - ei.fofs;
if (f2fs_lookup_read_extent_cache_block(inode, index,
&dn.data_blkaddr)) {
if (!f2fs_is_valid_blkaddr(F2FS_I_SB(inode), dn.data_blkaddr,
DATA_GENERIC_ENHANCE_READ)) {
err = -EFSCORRUPTED;
@ -2641,7 +2635,6 @@ int f2fs_do_write_data_page(struct f2fs_io_info *fio)
struct page *page = fio->page;
struct inode *inode = page->mapping->host;
struct dnode_of_data dn;
struct extent_info ei = {0, };
struct node_info ni;
bool ipu_force = false;
int err = 0;
@ -2653,9 +2646,8 @@ int f2fs_do_write_data_page(struct f2fs_io_info *fio)
set_new_dnode(&dn, inode, NULL, NULL, 0);
if (need_inplace_update(fio) &&
f2fs_lookup_read_extent_cache(inode, page->index, &ei)) {
fio->old_blkaddr = ei.blk + page->index - ei.fofs;
f2fs_lookup_read_extent_cache_block(inode, page->index,
&fio->old_blkaddr)) {
if (!f2fs_is_valid_blkaddr(fio->sbi, fio->old_blkaddr,
DATA_GENERIC_ENHANCE)) {
f2fs_handle_error(fio->sbi,
@ -3328,7 +3320,6 @@ static int prepare_write_begin(struct f2fs_sb_info *sbi,
struct dnode_of_data dn;
struct page *ipage;
bool locked = false;
struct extent_info ei = {0, };
int err = 0;
int flag;
@ -3376,20 +3367,16 @@ restart:
}
} else if (locked) {
err = f2fs_get_block(&dn, index);
} else {
if (f2fs_lookup_read_extent_cache(inode, index, &ei)) {
dn.data_blkaddr = ei.blk + index - ei.fofs;
} else {
/* hole case */
err = f2fs_get_dnode_of_data(&dn, index, LOOKUP_NODE);
if (err || dn.data_blkaddr == NULL_ADDR) {
f2fs_put_dnode(&dn);
f2fs_do_map_lock(sbi, F2FS_GET_BLOCK_PRE_AIO,
true);
WARN_ON(flag != F2FS_GET_BLOCK_PRE_AIO);
locked = true;
goto restart;
}
} else if (!f2fs_lookup_read_extent_cache_block(inode, index,
&dn.data_blkaddr)) {
/* hole case */
err = f2fs_get_dnode_of_data(&dn, index, LOOKUP_NODE);
if (err || dn.data_blkaddr == NULL_ADDR) {
f2fs_put_dnode(&dn);
f2fs_do_map_lock(sbi, F2FS_GET_BLOCK_PRE_AIO, true);
WARN_ON(flag != F2FS_GET_BLOCK_PRE_AIO);
locked = true;
goto restart;
}
}
@ -3409,7 +3396,6 @@ static int __find_data_block(struct inode *inode, pgoff_t index,
{
struct dnode_of_data dn;
struct page *ipage;
struct extent_info ei = {0, };
int err = 0;
ipage = f2fs_get_node_page(F2FS_I_SB(inode), inode->i_ino);
@ -3418,9 +3404,8 @@ static int __find_data_block(struct inode *inode, pgoff_t index,
set_new_dnode(&dn, inode, ipage, ipage, 0);
if (f2fs_lookup_read_extent_cache(inode, index, &ei)) {
dn.data_blkaddr = ei.blk + index - ei.fofs;
} else {
if (!f2fs_lookup_read_extent_cache_block(inode, index,
&dn.data_blkaddr)) {
/* hole case */
err = f2fs_get_dnode_of_data(&dn, index, LOOKUP_NODE);
if (err) {

11
fs/f2fs/extent_cache.c
View File

@ -1047,6 +1047,17 @@ bool f2fs_lookup_read_extent_cache(struct inode *inode, pgoff_t pgofs,
return __lookup_extent_tree(inode, pgofs, ei, EX_READ);
}
bool f2fs_lookup_read_extent_cache_block(struct inode *inode, pgoff_t index,
block_t *blkaddr)
{
struct extent_info ei = {};
if (!f2fs_lookup_read_extent_cache(inode, index, &ei))
return false;
*blkaddr = ei.blk + index - ei.fofs;
return true;
}
void f2fs_update_read_extent_cache(struct dnode_of_data *dn)
{
return __update_extent_cache(dn, EX_READ);

2
fs/f2fs/f2fs.h
View File

@ -4182,6 +4182,8 @@ void f2fs_destroy_extent_cache(void);
void f2fs_init_read_extent_tree(struct inode *inode, struct page *ipage);
bool f2fs_lookup_read_extent_cache(struct inode *inode, pgoff_t pgofs,
struct extent_info *ei);
bool f2fs_lookup_read_extent_cache_block(struct inode *inode, pgoff_t index,
block_t *blkaddr);
void f2fs_update_read_extent_cache(struct dnode_of_data *dn);
void f2fs_update_read_extent_cache_range(struct dnode_of_data *dn,
pgoff_t fofs, block_t blkaddr, unsigned int len);

5
fs/f2fs/gc.c
View File

@ -1150,7 +1150,6 @@ static int ra_data_block(struct inode *inode, pgoff_t index)
struct address_space *mapping = inode->i_mapping;
struct dnode_of_data dn;
struct page *page;
struct extent_info ei = {0, };
struct f2fs_io_info fio = {
.sbi = sbi,
.ino = inode->i_ino,
@ -1168,8 +1167,8 @@ static int ra_data_block(struct inode *inode, pgoff_t index)
if (!page)
return -ENOMEM;
if (f2fs_lookup_read_extent_cache(inode, index, &ei)) {
dn.data_blkaddr = ei.blk + index - ei.fofs;
if (f2fs_lookup_read_extent_cache_block(inode, index,
&dn.data_blkaddr)) {
if (unlikely(!f2fs_is_valid_blkaddr(sbi, dn.data_blkaddr,
DATA_GENERIC_ENHANCE_READ))) {
err = -EFSCORRUPTED;