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Message-Id: <20240410142948.2817554-20-yi.zhang@huaweicloud.com>
Date: Wed, 10 Apr 2024 22:29:33 +0800
From: Zhang Yi <yi.zhang@...weicloud.com>
To: linux-ext4@...r.kernel.org
Cc: linux-fsdevel@...r.kernel.org,
linux-mm@...ck.org,
linux-kernel@...r.kernel.org,
tytso@....edu,
adilger.kernel@...ger.ca,
jack@...e.cz,
ritesh.list@...il.com,
hch@...radead.org,
djwong@...nel.org,
david@...morbit.com,
willy@...radead.org,
zokeefe@...gle.com,
yi.zhang@...wei.com,
yi.zhang@...weicloud.com,
chengzhihao1@...wei.com,
yukuai3@...wei.com,
wangkefeng.wang@...wei.com
Subject: [RFC PATCH v4 19/34] ext4: drop all delonly descriptions
From: Zhang Yi <yi.zhang@...wei.com>
Drop all delonly descriptions in parameters and comments.
Signed-off-by: Zhang Yi <yi.zhang@...wei.com>
---
fs/ext4/extents_status.c | 92 ++++++++++++++++++++--------------------
1 file changed, 45 insertions(+), 47 deletions(-)
diff --git a/fs/ext4/extents_status.c b/fs/ext4/extents_status.c
index 062293e739cc..926669d8eb3e 100644
--- a/fs/ext4/extents_status.c
+++ b/fs/ext4/extents_status.c
@@ -142,8 +142,8 @@
*/
struct rsvd_info {
- int delonly_cluster; /* reserved clusters for delalloc es entry */
- int delonly_block; /* reserved blocks for delalloc es entry */
+ int delayed_cluster; /* reserved clusters for delalloc es entry */
+ int delayed_block; /* reserved blocks for delalloc es entry */
};
static struct kmem_cache *ext4_es_cachep;
@@ -943,10 +943,10 @@ void ext4_es_insert_extent(struct inode *inode, ext4_lblk_t lblk,
* so release the quota reservations made for any previously delayed
* allocated clusters.
*/
- resv_used = rinfo.delonly_cluster + pending;
+ resv_used = rinfo.delayed_cluster + pending;
if (resv_used)
ext4_da_update_reserve_space(inode, resv_used,
- rinfo.delonly_block);
+ rinfo.delayed_block);
if (err1 || err2 || err3 < 0)
goto retry;
@@ -1067,8 +1067,8 @@ int ext4_es_lookup_extent(struct inode *inode, ext4_lblk_t lblk,
}
struct rsvd_count {
- int ndelonly_cluster;
- int ndelonly_block;
+ int ndelayed_cluster;
+ int ndelayed_block;
bool first_do_lblk_found;
ext4_lblk_t first_do_lblk;
ext4_lblk_t last_do_lblk;
@@ -1094,11 +1094,11 @@ static void init_rsvd(struct inode *inode, ext4_lblk_t lblk,
struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
struct rb_node *node;
- rc->ndelonly_cluster = 0;
- rc->ndelonly_block = 0;
+ rc->ndelayed_cluster = 0;
+ rc->ndelayed_block = 0;
/*
- * for bigalloc, note the first delonly block in the range has not
+ * for bigalloc, note the first delayed block in the range has not
* been found, record the extent containing the block to the left of
* the region to be removed, if any, and note that there's no partial
* cluster to track
@@ -1118,9 +1118,8 @@ static void init_rsvd(struct inode *inode, ext4_lblk_t lblk,
}
/*
- * count_rsvd - count the clusters containing delayed and not unwritten
- * (delonly) blocks in a range within an extent and add to
- * the running tally in rsvd_count
+ * count_rsvd - count the clusters containing delayed blocks in a range
+ * within an extent and add to the running tally in rsvd_count
*
* @inode - file containing extent
* @lblk - first block in range
@@ -1143,19 +1142,19 @@ static void count_rsvd(struct inode *inode, ext4_lblk_t lblk, long len,
WARN_ON(len <= 0);
if (sbi->s_cluster_ratio == 1) {
- rc->ndelonly_cluster += (int) len;
- rc->ndelonly_block = rc->ndelonly_cluster;
+ rc->ndelayed_cluster += (int) len;
+ rc->ndelayed_block = rc->ndelayed_cluster;
return;
}
/* bigalloc */
- rc->ndelonly_block += (int)len;
+ rc->ndelayed_block += (int)len;
i = (lblk < es->es_lblk) ? es->es_lblk : lblk;
end = lblk + (ext4_lblk_t) len - 1;
end = (end > ext4_es_end(es)) ? ext4_es_end(es) : end;
- /* record the first block of the first delonly extent seen */
+ /* record the first block of the first delayed extent seen */
if (!rc->first_do_lblk_found) {
rc->first_do_lblk = i;
rc->first_do_lblk_found = true;
@@ -1169,7 +1168,7 @@ static void count_rsvd(struct inode *inode, ext4_lblk_t lblk, long len,
* doesn't start with it, count it and stop tracking
*/
if (rc->partial && (rc->lclu != EXT4_B2C(sbi, i))) {
- rc->ndelonly_cluster++;
+ rc->ndelayed_cluster++;
rc->partial = false;
}
@@ -1179,7 +1178,7 @@ static void count_rsvd(struct inode *inode, ext4_lblk_t lblk, long len,
*/
if (EXT4_LBLK_COFF(sbi, i) != 0) {
if (end >= EXT4_LBLK_CFILL(sbi, i)) {
- rc->ndelonly_cluster++;
+ rc->ndelayed_cluster++;
rc->partial = false;
i = EXT4_LBLK_CFILL(sbi, i) + 1;
}
@@ -1187,11 +1186,11 @@ static void count_rsvd(struct inode *inode, ext4_lblk_t lblk, long len,
/*
* if the current cluster starts on a cluster boundary, count the
- * number of whole delonly clusters in the extent
+ * number of whole delayed clusters in the extent
*/
if ((i + sbi->s_cluster_ratio - 1) <= end) {
nclu = (end - i + 1) >> sbi->s_cluster_bits;
- rc->ndelonly_cluster += nclu;
+ rc->ndelayed_cluster += nclu;
i += nclu << sbi->s_cluster_bits;
}
@@ -1251,10 +1250,9 @@ static struct pending_reservation *__pr_tree_search(struct rb_root *root,
* @rc - pointer to reserved count data
*
* The number of reservations to be released is equal to the number of
- * clusters containing delayed and not unwritten (delonly) blocks within
- * the range, minus the number of clusters still containing delonly blocks
- * at the ends of the range, and minus the number of pending reservations
- * within the range.
+ * clusters containing delayed blocks within the range, minus the number of
+ * clusters still containing delayed blocks at the ends of the range, and
+ * minus the number of pending reservations within the range.
*/
static unsigned int get_rsvd(struct inode *inode, ext4_lblk_t end,
struct extent_status *right_es,
@@ -1265,33 +1263,33 @@ static unsigned int get_rsvd(struct inode *inode, ext4_lblk_t end,
struct ext4_pending_tree *tree = &EXT4_I(inode)->i_pending_tree;
struct rb_node *node;
ext4_lblk_t first_lclu, last_lclu;
- bool left_delonly, right_delonly, count_pending;
+ bool left_delayed, right_delayed, count_pending;
struct extent_status *es;
if (sbi->s_cluster_ratio > 1) {
/* count any remaining partial cluster */
if (rc->partial)
- rc->ndelonly_cluster++;
+ rc->ndelayed_cluster++;
- if (rc->ndelonly_cluster == 0)
+ if (rc->ndelayed_cluster == 0)
return 0;
first_lclu = EXT4_B2C(sbi, rc->first_do_lblk);
last_lclu = EXT4_B2C(sbi, rc->last_do_lblk);
/*
- * decrease the delonly count by the number of clusters at the
- * ends of the range that still contain delonly blocks -
+ * decrease the delayed count by the number of clusters at the
+ * ends of the range that still contain delayed blocks -
* these clusters still need to be reserved
*/
- left_delonly = right_delonly = false;
+ left_delayed = right_delayed = false;
es = rc->left_es;
while (es && ext4_es_end(es) >=
EXT4_LBLK_CMASK(sbi, rc->first_do_lblk)) {
if (ext4_es_is_delayed(es)) {
- rc->ndelonly_cluster--;
- left_delonly = true;
+ rc->ndelayed_cluster--;
+ left_delayed = true;
break;
}
node = rb_prev(&es->rb_node);
@@ -1299,7 +1297,7 @@ static unsigned int get_rsvd(struct inode *inode, ext4_lblk_t end,
break;
es = rb_entry(node, struct extent_status, rb_node);
}
- if (right_es && (!left_delonly || first_lclu != last_lclu)) {
+ if (right_es && (!left_delayed || first_lclu != last_lclu)) {
if (end < ext4_es_end(right_es)) {
es = right_es;
} else {
@@ -1310,8 +1308,8 @@ static unsigned int get_rsvd(struct inode *inode, ext4_lblk_t end,
while (es && es->es_lblk <=
EXT4_LBLK_CFILL(sbi, rc->last_do_lblk)) {
if (ext4_es_is_delayed(es)) {
- rc->ndelonly_cluster--;
- right_delonly = true;
+ rc->ndelayed_cluster--;
+ right_delayed = true;
break;
}
node = rb_next(&es->rb_node);
@@ -1325,21 +1323,21 @@ static unsigned int get_rsvd(struct inode *inode, ext4_lblk_t end,
/*
* Determine the block range that should be searched for
* pending reservations, if any. Clusters on the ends of the
- * original removed range containing delonly blocks are
+ * original removed range containing delayed blocks are
* excluded. They've already been accounted for and it's not
* possible to determine if an associated pending reservation
* should be released with the information available in the
* extents status tree.
*/
if (first_lclu == last_lclu) {
- if (left_delonly | right_delonly)
+ if (left_delayed | right_delayed)
count_pending = false;
else
count_pending = true;
} else {
- if (left_delonly)
+ if (left_delayed)
first_lclu++;
- if (right_delonly)
+ if (right_delayed)
last_lclu--;
if (first_lclu <= last_lclu)
count_pending = true;
@@ -1350,13 +1348,13 @@ static unsigned int get_rsvd(struct inode *inode, ext4_lblk_t end,
/*
* a pending reservation found between first_lclu and last_lclu
* represents an allocated cluster that contained at least one
- * delonly block, so the delonly total must be reduced by one
+ * delayed block, so the delayed total must be reduced by one
* for each pending reservation found and released
*/
if (count_pending) {
pr = __pr_tree_search(&tree->root, first_lclu);
while (pr && pr->lclu <= last_lclu) {
- rc->ndelonly_cluster--;
+ rc->ndelayed_cluster--;
node = rb_next(&pr->rb_node);
rb_erase(&pr->rb_node, &tree->root);
__free_pending(pr);
@@ -1367,7 +1365,7 @@ static unsigned int get_rsvd(struct inode *inode, ext4_lblk_t end,
}
}
}
- return rc->ndelonly_cluster;
+ return rc->ndelayed_cluster;
}
@@ -1401,8 +1399,8 @@ static int __es_remove_extent(struct inode *inode, ext4_lblk_t lblk,
struct rsvd_count rc;
if (rinfo) {
- rinfo->delonly_cluster = 0;
- rinfo->delonly_block = 0;
+ rinfo->delayed_cluster = 0;
+ rinfo->delayed_block = 0;
if (test_opt(inode->i_sb, DELALLOC))
count_reserved = true;
}
@@ -1504,8 +1502,8 @@ static int __es_remove_extent(struct inode *inode, ext4_lblk_t lblk,
out_get_reserved:
if (count_reserved) {
- rinfo->delonly_cluster = get_rsvd(inode, end, es, &rc);
- rinfo->delonly_block = rc.ndelonly_block;
+ rinfo->delayed_cluster = get_rsvd(inode, end, es, &rc);
+ rinfo->delayed_block = rc.ndelayed_block;
}
out:
return err;
@@ -1563,7 +1561,7 @@ void ext4_es_remove_extent(struct inode *inode, ext4_lblk_t lblk,
goto retry;
ext4_es_print_tree(inode);
- ext4_da_release_space(inode, rinfo.delonly_cluster);
+ ext4_da_release_space(inode, rinfo.delayed_cluster);
return;
}
--
2.39.2
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