From: Zhang Yi <yi.zhang@huaweicloud.com>
To: linux-ext4@vger.kernel.org
Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
tytso@mit.edu, adilger.kernel@dilger.ca, jack@suse.cz,
ritesh.list@gmail.com, yi.zhang@huawei.com,
yi.zhang@huaweicloud.com, chengzhihao1@huawei.com,
yukuai3@huawei.com
Subject: [PATCH 04/10] ext4: let __revise_pending() return newly inserted pendings
Date: Sat, 1 Jun 2024 11:41:43 +0800 [thread overview]
Message-ID: <20240601034149.2169771-5-yi.zhang@huaweicloud.com> (raw)
In-Reply-To: <20240601034149.2169771-1-yi.zhang@huaweicloud.com>
From: Zhang Yi <yi.zhang@huawei.com>
Let __insert_pending() return 1 after successfully inserting a new
pending cluster, and also let __revise_pending() to return the number of
of newly inserted pendings.
Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
---
fs/ext4/extents_status.c | 28 ++++++++++++++++++----------
1 file changed, 18 insertions(+), 10 deletions(-)
diff --git a/fs/ext4/extents_status.c b/fs/ext4/extents_status.c
index 084ea0a753ee..e54e15eb05b9 100644
--- a/fs/ext4/extents_status.c
+++ b/fs/ext4/extents_status.c
@@ -885,7 +885,7 @@ void ext4_es_insert_extent(struct inode *inode, ext4_lblk_t lblk,
es1 = __es_alloc_extent(true);
if ((err1 || err2) && !es2)
es2 = __es_alloc_extent(true);
- if ((err1 || err2 || err3) && revise_pending && !pr)
+ if ((err1 || err2 || err3 < 0) && revise_pending && !pr)
pr = __alloc_pending(true);
write_lock(&EXT4_I(inode)->i_es_lock);
@@ -913,7 +913,7 @@ void ext4_es_insert_extent(struct inode *inode, ext4_lblk_t lblk,
if (revise_pending) {
err3 = __revise_pending(inode, lblk, len, &pr);
- if (err3 != 0)
+ if (err3 < 0)
goto error;
if (pr) {
__free_pending(pr);
@@ -922,7 +922,7 @@ void ext4_es_insert_extent(struct inode *inode, ext4_lblk_t lblk,
}
error:
write_unlock(&EXT4_I(inode)->i_es_lock);
- if (err1 || err2 || err3)
+ if (err1 || err2 || err3 < 0)
goto retry;
ext4_es_print_tree(inode);
@@ -1931,7 +1931,7 @@ static struct pending_reservation *__get_pending(struct inode *inode,
* @lblk - logical block in the cluster to be added
* @prealloc - preallocated pending entry
*
- * Returns 0 on successful insertion and -ENOMEM on failure. If the
+ * Returns 1 on successful insertion and -ENOMEM on failure. If the
* pending reservation is already in the set, returns successfully.
*/
static int __insert_pending(struct inode *inode, ext4_lblk_t lblk,
@@ -1975,6 +1975,7 @@ static int __insert_pending(struct inode *inode, ext4_lblk_t lblk,
rb_link_node(&pr->rb_node, parent, p);
rb_insert_color(&pr->rb_node, &tree->root);
+ ret = 1;
out:
return ret;
@@ -2096,7 +2097,7 @@ void ext4_es_insert_delayed_extent(struct inode *inode, ext4_lblk_t lblk,
es1 = __es_alloc_extent(true);
if ((err1 || err2) && !es2)
es2 = __es_alloc_extent(true);
- if (err1 || err2 || err3) {
+ if (err1 || err2 || err3 < 0) {
if (lclu_allocated && !pr1)
pr1 = __alloc_pending(true);
if (end_allocated && !pr2)
@@ -2126,7 +2127,7 @@ void ext4_es_insert_delayed_extent(struct inode *inode, ext4_lblk_t lblk,
if (lclu_allocated) {
err3 = __insert_pending(inode, lblk, &pr1);
- if (err3 != 0)
+ if (err3 < 0)
goto error;
if (pr1) {
__free_pending(pr1);
@@ -2135,7 +2136,7 @@ void ext4_es_insert_delayed_extent(struct inode *inode, ext4_lblk_t lblk,
}
if (end_allocated) {
err3 = __insert_pending(inode, end, &pr2);
- if (err3 != 0)
+ if (err3 < 0)
goto error;
if (pr2) {
__free_pending(pr2);
@@ -2144,7 +2145,7 @@ void ext4_es_insert_delayed_extent(struct inode *inode, ext4_lblk_t lblk,
}
error:
write_unlock(&EXT4_I(inode)->i_es_lock);
- if (err1 || err2 || err3)
+ if (err1 || err2 || err3 < 0)
goto retry;
ext4_es_print_tree(inode);
@@ -2254,7 +2255,9 @@ unsigned int ext4_es_delayed_clu(struct inode *inode, ext4_lblk_t lblk,
*
* Used after a newly allocated extent is added to the extents status tree.
* Requires that the extents in the range have either written or unwritten
- * status. Must be called while holding i_es_lock.
+ * status. Must be called while holding i_es_lock. Returns number of new
+ * inserts pending cluster on insert pendings, returns 0 on remove pendings,
+ * return -ENOMEM on failure.
*/
static int __revise_pending(struct inode *inode, ext4_lblk_t lblk,
ext4_lblk_t len,
@@ -2264,6 +2267,7 @@ static int __revise_pending(struct inode *inode, ext4_lblk_t lblk,
ext4_lblk_t end = lblk + len - 1;
ext4_lblk_t first, last;
bool f_del = false, l_del = false;
+ int pendings = 0;
int ret = 0;
if (len == 0)
@@ -2291,6 +2295,7 @@ static int __revise_pending(struct inode *inode, ext4_lblk_t lblk,
ret = __insert_pending(inode, first, prealloc);
if (ret < 0)
goto out;
+ pendings += ret;
} else {
last = EXT4_LBLK_CMASK(sbi, end) +
sbi->s_cluster_ratio - 1;
@@ -2302,6 +2307,7 @@ static int __revise_pending(struct inode *inode, ext4_lblk_t lblk,
ret = __insert_pending(inode, last, prealloc);
if (ret < 0)
goto out;
+ pendings += ret;
} else
__remove_pending(inode, last);
}
@@ -2314,6 +2320,7 @@ static int __revise_pending(struct inode *inode, ext4_lblk_t lblk,
ret = __insert_pending(inode, first, prealloc);
if (ret < 0)
goto out;
+ pendings += ret;
} else
__remove_pending(inode, first);
@@ -2325,9 +2332,10 @@ static int __revise_pending(struct inode *inode, ext4_lblk_t lblk,
ret = __insert_pending(inode, last, prealloc);
if (ret < 0)
goto out;
+ pendings += ret;
} else
__remove_pending(inode, last);
}
out:
- return ret;
+ return (ret < 0) ? ret : pendings;
}
--
2.31.1
next prev parent reply other threads:[~2024-06-01 3:42 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-06-01 3:41 [PATCH 00/10] ext4: simplify the counting and management of delalloc reserved blocks Zhang Yi
2024-06-01 3:41 ` [PATCH 01/10] ext4: factor out ext4_map_create_blocks() to allocate new blocks Zhang Yi
2024-06-01 3:41 ` [PATCH 02/10] ext4: optimize the EXT4_GET_BLOCKS_DELALLOC_RESERVE flag set Zhang Yi
2024-06-01 3:41 ` [PATCH 03/10] ext4: don't set EXTENT_STATUS_DELAYED on allocated blocks Zhang Yi
2024-06-01 3:41 ` Zhang Yi [this message]
2024-06-01 3:41 ` [PATCH 05/10] ext4: count removed reserved blocks for delalloc only extent entry Zhang Yi
2024-06-01 3:41 ` [PATCH 06/10] ext4: update delalloc data reserve spcae in ext4_es_insert_extent() Zhang Yi
2024-06-01 3:41 ` [PATCH 07/10] ext4: drop ext4_es_delayed_clu() Zhang Yi
2024-06-01 3:41 ` [PATCH 08/10] ext4: use ext4_map_query_blocks() in ext4_map_blocks() Zhang Yi
2024-06-01 3:41 ` [PATCH 09/10] ext4: drop ext4_es_is_delonly() Zhang Yi
2024-06-01 3:41 ` [PATCH 10/10] ext4: drop all delonly descriptions Zhang Yi
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