[PATCH -next v2 2/2] ext4: factor out ext4_free_ext_path()
From: Ye Bin
Date: Fri Sep 23 2022 - 22:01:52 EST
Factor out ext4_free_ext_path() to free extent path. As after previous patch
'ext4_ext_drop_refs()' is only used in 'extents.c', so make it static.
Signed-off-by: Ye Bin <yebin10@xxxxxxxxxx>
---
fs/ext4/ext4.h | 2 +-
fs/ext4/extents.c | 107 ++++++++++++++++-----------------------
fs/ext4/extents_status.c | 3 +-
fs/ext4/fast_commit.c | 6 +--
fs/ext4/migrate.c | 3 +-
fs/ext4/move_extent.c | 9 ++--
fs/ext4/verity.c | 6 +--
7 files changed, 54 insertions(+), 82 deletions(-)
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index e6674504ca2a..648ea9ccf65e 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -3713,7 +3713,7 @@ extern int ext4_ext_insert_extent(handle_t *, struct inode *,
extern struct ext4_ext_path *ext4_find_extent(struct inode *, ext4_lblk_t,
struct ext4_ext_path **,
int flags);
-extern void ext4_ext_drop_refs(struct ext4_ext_path *);
+extern void ext4_free_ext_path(struct ext4_ext_path *);
extern int ext4_ext_check_inode(struct inode *inode);
extern ext4_lblk_t ext4_ext_next_allocated_block(struct ext4_ext_path *path);
extern int ext4_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index c148bb97b527..4653acfa1723 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -106,6 +106,25 @@ static int ext4_ext_trunc_restart_fn(struct inode *inode, int *dropped)
return 0;
}
+static void ext4_ext_drop_refs(struct ext4_ext_path *path)
+{
+ int depth, i;
+
+ if (!path)
+ return;
+ depth = path->p_depth;
+ for (i = 0; i <= depth; i++, path++) {
+ brelse(path->p_bh);
+ path->p_bh = NULL;
+ }
+}
+
+void ext4_free_ext_path(struct ext4_ext_path *path)
+{
+ ext4_ext_drop_refs(path);
+ kfree(path);
+}
+
/*
* Make sure 'handle' has at least 'check_cred' credits. If not, restart
* transaction with 'restart_cred' credits. The function drops i_data_sem
@@ -632,8 +651,7 @@ int ext4_ext_precache(struct inode *inode)
ext4_set_inode_state(inode, EXT4_STATE_EXT_PRECACHED);
out:
up_read(&ei->i_data_sem);
- ext4_ext_drop_refs(path);
- kfree(path);
+ ext4_free_ext_path(path);
return ret;
}
@@ -720,19 +738,6 @@ static void ext4_ext_show_move(struct inode *inode, struct ext4_ext_path *path,
#define ext4_ext_show_move(inode, path, newblock, level)
#endif
-void ext4_ext_drop_refs(struct ext4_ext_path *path)
-{
- int depth, i;
-
- if (!path)
- return;
- depth = path->p_depth;
- for (i = 0; i <= depth; i++, path++) {
- brelse(path->p_bh);
- path->p_bh = NULL;
- }
-}
-
/*
* ext4_ext_binsearch_idx:
* binary search for the closest index of the given block
@@ -951,8 +956,7 @@ ext4_find_extent(struct inode *inode, ext4_lblk_t block,
return path;
err:
- ext4_ext_drop_refs(path);
- kfree(path);
+ ext4_free_ext_path(path);
if (orig_path)
*orig_path = NULL;
return ERR_PTR(ret);
@@ -2170,8 +2174,7 @@ int ext4_ext_insert_extent(handle_t *handle, struct inode *inode,
err = ext4_ext_dirty(handle, inode, path + path->p_depth);
cleanup:
- ext4_ext_drop_refs(npath);
- kfree(npath);
+ ext4_free_ext_path(npath);
return err;
}
@@ -3057,8 +3060,7 @@ int ext4_ext_remove_space(struct inode *inode, ext4_lblk_t start,
}
}
out:
- ext4_ext_drop_refs(path);
- kfree(path);
+ ext4_free_ext_path(path);
path = NULL;
if (err == -EAGAIN)
goto again;
@@ -4371,8 +4373,7 @@ int ext4_ext_map_blocks(handle_t *handle, struct inode *inode,
allocated = map->m_len;
ext4_ext_show_leaf(inode, path);
out:
- ext4_ext_drop_refs(path);
- kfree(path);
+ ext4_free_ext_path(path);
trace_ext4_ext_map_blocks_exit(inode, flags, map,
err ? err : allocated);
@@ -5241,8 +5242,7 @@ ext4_ext_shift_extents(struct inode *inode, handle_t *handle,
break;
}
out:
- ext4_ext_drop_refs(path);
- kfree(path);
+ ext4_free_ext_path(path);
return ret;
}
@@ -5534,15 +5534,13 @@ static int ext4_insert_range(struct file *file, loff_t offset, loff_t len)
EXT4_GET_BLOCKS_METADATA_NOFAIL);
}
- ext4_ext_drop_refs(path);
- kfree(path);
+ ext4_free_ext_path(path);
if (ret < 0) {
up_write(&EXT4_I(inode)->i_data_sem);
goto out_stop;
}
} else {
- ext4_ext_drop_refs(path);
- kfree(path);
+ ext4_free_ext_path(path);
}
ret = ext4_es_remove_extent(inode, offset_lblk,
@@ -5762,10 +5760,8 @@ ext4_swap_extents(handle_t *handle, struct inode *inode1,
count -= len;
repeat:
- ext4_ext_drop_refs(path1);
- kfree(path1);
- ext4_ext_drop_refs(path2);
- kfree(path2);
+ ext4_free_ext_path(path1);
+ ext4_free_ext_path(path2);
path1 = path2 = NULL;
}
return replaced_count;
@@ -5844,8 +5840,7 @@ int ext4_clu_mapped(struct inode *inode, ext4_lblk_t lclu)
}
out:
- ext4_ext_drop_refs(path);
- kfree(path);
+ ext4_free_ext_path(path);
return err ? err : mapped;
}
@@ -5912,8 +5907,7 @@ int ext4_ext_replay_update_ex(struct inode *inode, ext4_lblk_t start,
ret = ext4_ext_dirty(NULL, inode, &path[path->p_depth]);
up_write(&EXT4_I(inode)->i_data_sem);
out:
- ext4_ext_drop_refs(path);
- kfree(path);
+ ext4_free_ext_path(path);
ext4_mark_inode_dirty(NULL, inode);
return ret;
}
@@ -5931,8 +5925,7 @@ void ext4_ext_replay_shrink_inode(struct inode *inode, ext4_lblk_t end)
return;
ex = path[path->p_depth].p_ext;
if (!ex) {
- ext4_ext_drop_refs(path);
- kfree(path);
+ ext4_free_ext_path(path);
ext4_mark_inode_dirty(NULL, inode);
return;
}
@@ -5945,8 +5938,7 @@ void ext4_ext_replay_shrink_inode(struct inode *inode, ext4_lblk_t end)
ext4_ext_dirty(NULL, inode, &path[path->p_depth]);
up_write(&EXT4_I(inode)->i_data_sem);
ext4_mark_inode_dirty(NULL, inode);
- ext4_ext_drop_refs(path);
- kfree(path);
+ ext4_free_ext_path(path);
}
}
@@ -5985,13 +5977,11 @@ int ext4_ext_replay_set_iblocks(struct inode *inode)
return PTR_ERR(path);
ex = path[path->p_depth].p_ext;
if (!ex) {
- ext4_ext_drop_refs(path);
- kfree(path);
+ ext4_free_ext_path(path);
goto out;
}
end = le32_to_cpu(ex->ee_block) + ext4_ext_get_actual_len(ex);
- ext4_ext_drop_refs(path);
- kfree(path);
+ ext4_free_ext_path(path);
/* Count the number of data blocks */
cur = 0;
@@ -6021,30 +6011,26 @@ int ext4_ext_replay_set_iblocks(struct inode *inode)
if (IS_ERR(path))
goto out;
numblks += path->p_depth;
- ext4_ext_drop_refs(path);
- kfree(path);
+ ext4_free_ext_path(path);
while (cur < end) {
path = ext4_find_extent(inode, cur, NULL, 0);
if (IS_ERR(path))
break;
ex = path[path->p_depth].p_ext;
if (!ex) {
- ext4_ext_drop_refs(path);
- kfree(path);
+ ext4_free_ext_path(path);
return 0;
}
cur = max(cur + 1, le32_to_cpu(ex->ee_block) +
ext4_ext_get_actual_len(ex));
ret = skip_hole(inode, &cur);
if (ret < 0) {
- ext4_ext_drop_refs(path);
- kfree(path);
+ ext4_free_ext_path(path);
break;
}
path2 = ext4_find_extent(inode, cur, NULL, 0);
if (IS_ERR(path2)) {
- ext4_ext_drop_refs(path);
- kfree(path);
+ ext4_free_ext_path(path);
break;
}
for (i = 0; i <= max(path->p_depth, path2->p_depth); i++) {
@@ -6058,10 +6044,8 @@ int ext4_ext_replay_set_iblocks(struct inode *inode)
if (cmp1 != cmp2 && cmp2 != 0)
numblks++;
}
- ext4_ext_drop_refs(path);
- ext4_ext_drop_refs(path2);
- kfree(path);
- kfree(path2);
+ ext4_free_ext_path(path);
+ ext4_free_ext_path(path2);
}
out:
@@ -6088,13 +6072,11 @@ int ext4_ext_clear_bb(struct inode *inode)
return PTR_ERR(path);
ex = path[path->p_depth].p_ext;
if (!ex) {
- ext4_ext_drop_refs(path);
- kfree(path);
+ ext4_free_ext_path(path);
return 0;
}
end = le32_to_cpu(ex->ee_block) + ext4_ext_get_actual_len(ex);
- ext4_ext_drop_refs(path);
- kfree(path);
+ ext4_free_ext_path(path);
cur = 0;
while (cur < end) {
@@ -6113,8 +6095,7 @@ int ext4_ext_clear_bb(struct inode *inode)
ext4_fc_record_regions(inode->i_sb, inode->i_ino,
0, path[j].p_block, 1, 1);
}
- ext4_ext_drop_refs(path);
- kfree(path);
+ ext4_free_ext_path(path);
}
ext4_mb_mark_bb(inode->i_sb, map.m_pblk, map.m_len, 0);
ext4_fc_record_regions(inode->i_sb, inode->i_ino,
diff --git a/fs/ext4/extents_status.c b/fs/ext4/extents_status.c
index 23167efda95e..cd0a861853e3 100644
--- a/fs/ext4/extents_status.c
+++ b/fs/ext4/extents_status.c
@@ -667,8 +667,7 @@ static void ext4_es_insert_extent_ext_check(struct inode *inode,
}
}
out:
- ext4_ext_drop_refs(path);
- kfree(path);
+ ext4_free_ext_path(path);
}
static void ext4_es_insert_extent_ind_check(struct inode *inode,
diff --git a/fs/ext4/fast_commit.c b/fs/ext4/fast_commit.c
index 067969f342eb..085cca17d72f 100644
--- a/fs/ext4/fast_commit.c
+++ b/fs/ext4/fast_commit.c
@@ -1776,8 +1776,7 @@ static int ext4_fc_replay_add_range(struct super_block *sb,
ret = ext4_ext_insert_extent(
NULL, inode, &path, &newex, 0);
up_write((&EXT4_I(inode)->i_data_sem));
- ext4_ext_drop_refs(path);
- kfree(path);
+ ext4_free_ext_path(path);
if (ret)
goto out;
goto next;
@@ -1932,8 +1931,7 @@ static void ext4_fc_set_bitmaps_and_counters(struct super_block *sb)
for (j = 0; j < path->p_depth; j++)
ext4_mb_mark_bb(inode->i_sb,
path[j].p_block, 1, 1);
- ext4_ext_drop_refs(path);
- kfree(path);
+ ext4_free_ext_path(path);
}
cur += ret;
ext4_mb_mark_bb(inode->i_sb, map.m_pblk,
diff --git a/fs/ext4/migrate.c b/fs/ext4/migrate.c
index 54e7d3c95fd7..0a220ec9862d 100644
--- a/fs/ext4/migrate.c
+++ b/fs/ext4/migrate.c
@@ -56,8 +56,7 @@ static int finish_range(handle_t *handle, struct inode *inode,
retval = ext4_ext_insert_extent(handle, inode, &path, &newext, 0);
err_out:
up_write((&EXT4_I(inode)->i_data_sem));
- ext4_ext_drop_refs(path);
- kfree(path);
+ ext4_free_ext_path(path);
lb->first_pblock = 0;
return retval;
}
diff --git a/fs/ext4/move_extent.c b/fs/ext4/move_extent.c
index 782bbda2a717..1f314eb6917d 100644
--- a/fs/ext4/move_extent.c
+++ b/fs/ext4/move_extent.c
@@ -32,8 +32,7 @@ get_ext_path(struct inode *inode, ext4_lblk_t lblock,
if (IS_ERR(path))
return PTR_ERR(path);
if (path[ext_depth(inode)].p_ext == NULL) {
- ext4_ext_drop_refs(path);
- kfree(path);
+ ext4_free_ext_path(path);
*ppath = NULL;
return -ENODATA;
}
@@ -106,8 +105,7 @@ mext_check_coverage(struct inode *inode, ext4_lblk_t from, ext4_lblk_t count,
}
ret = 1;
out:
- ext4_ext_drop_refs(path);
- kfree(path);
+ ext4_free_ext_path(path);
return ret;
}
@@ -693,8 +691,7 @@ ext4_move_extents(struct file *o_filp, struct file *d_filp, __u64 orig_blk,
ext4_discard_preallocations(donor_inode, 0);
}
- ext4_ext_drop_refs(path);
- kfree(path);
+ ext4_free_ext_path(path);
ext4_double_up_write_data_sem(orig_inode, donor_inode);
unlock_two_nondirectories(orig_inode, donor_inode);
diff --git a/fs/ext4/verity.c b/fs/ext4/verity.c
index b051d19b5c8a..20cadfb740dc 100644
--- a/fs/ext4/verity.c
+++ b/fs/ext4/verity.c
@@ -298,16 +298,14 @@ static int ext4_get_verity_descriptor_location(struct inode *inode,
last_extent = path[path->p_depth].p_ext;
if (!last_extent) {
EXT4_ERROR_INODE(inode, "verity file has no extents");
- ext4_ext_drop_refs(path);
- kfree(path);
+ ext4_free_ext_path(path);
return -EFSCORRUPTED;
}
end_lblk = le32_to_cpu(last_extent->ee_block) +
ext4_ext_get_actual_len(last_extent);
desc_size_pos = (u64)end_lblk << inode->i_blkbits;
- ext4_ext_drop_refs(path);
- kfree(path);
+ ext4_free_ext_path(path);
if (desc_size_pos < sizeof(desc_size_disk))
goto bad;
--
2.31.1