| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <20241016052758.3400359-3-yi.sun@unisoc.com>
Date: Wed, 16 Oct 2024 13:27:58 +0800
From: Yi Sun <yi.sun@...soc.com>
To: <chao@...nel.org>
CC: <jaegeuk@...nel.org>, <linux-f2fs-devel@...ts.sourceforge.net>,
<linux-kernel@...r.kernel.org>, <yi.sun@...soc.com>,
<sunyibuaa@...il.com>, <niuzhiguo84@...il.com>,
<hao_hao.wang@...soc.com>, <ke.wang@...soc.com>
Subject: [RFC PATCH 2/2] f2fs: introduce f2fs_invalidate_consecutive_blocks()
When doing truncate, consecutive blocks in the same segment
can be processed at the same time. So that the efficiency of
doing truncate can be improved.
Add f2fs_invalidate_compress_pages_range() only for doing truncate.
Add check_f2fs_invalidate_consecutive_blocks() only for doing
truncate and to determine whether the blocks are continuous and
belong to the same segment.
Signed-off-by: Yi Sun <yi.sun@...soc.com>
---
fs/f2fs/compress.c | 14 ++++++++++++++
fs/f2fs/f2fs.h | 5 +++++
fs/f2fs/file.c | 34 +++++++++++++++++++++++++++++++++-
fs/f2fs/segment.c | 25 +++++++++++++++++++++++++
4 files changed, 77 insertions(+), 1 deletion(-)
diff --git a/fs/f2fs/compress.c b/fs/f2fs/compress.c
index 7f26440e8595..70929a87e9bf 100644
--- a/fs/f2fs/compress.c
+++ b/fs/f2fs/compress.c
@@ -2014,6 +2014,20 @@ void f2fs_invalidate_compress_pages(struct f2fs_sb_info *sbi, nid_t ino)
} while (index < end);
}
+void f2fs_invalidate_compress_pages_range(struct f2fs_sb_info *sbi,
+ block_t blkaddr, int cnt)
+{
+ if (!sbi->compress_inode)
+ return;
+
+ if (cnt < 1) {
+ f2fs_bug_on(sbi, 1);
+ cnt = 1;
+ }
+
+ invalidate_mapping_pages(COMPRESS_MAPPING(sbi), blkaddr, blkaddr + cnt - 1);
+}
+
int f2fs_init_compress_inode(struct f2fs_sb_info *sbi)
{
struct inode *inode;
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index ce00cb546f4a..99767f35678f 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -3716,6 +3716,7 @@ int f2fs_create_flush_cmd_control(struct f2fs_sb_info *sbi);
int f2fs_flush_device_cache(struct f2fs_sb_info *sbi);
void f2fs_destroy_flush_cmd_control(struct f2fs_sb_info *sbi, bool free);
void f2fs_invalidate_blocks(struct f2fs_sb_info *sbi, block_t addr);
+void f2fs_invalidate_consecutive_blocks(struct f2fs_sb_info *sbi, block_t addr, int cnt);
bool f2fs_is_checkpointed_data(struct f2fs_sb_info *sbi, block_t blkaddr);
int f2fs_start_discard_thread(struct f2fs_sb_info *sbi);
void f2fs_drop_discard_cmd(struct f2fs_sb_info *sbi);
@@ -4375,6 +4376,8 @@ void f2fs_cache_compressed_page(struct f2fs_sb_info *sbi, struct page *page,
bool f2fs_load_compressed_page(struct f2fs_sb_info *sbi, struct page *page,
block_t blkaddr);
void f2fs_invalidate_compress_pages(struct f2fs_sb_info *sbi, nid_t ino);
+void f2fs_invalidate_compress_pages_range(struct f2fs_sb_info *sbi,
+ block_t blkaddr, int cnt);
#define inc_compr_inode_stat(inode) \
do { \
struct f2fs_sb_info *sbi = F2FS_I_SB(inode); \
@@ -4432,6 +4435,8 @@ static inline bool f2fs_load_compressed_page(struct f2fs_sb_info *sbi,
struct page *page, block_t blkaddr) { return false; }
static inline void f2fs_invalidate_compress_pages(struct f2fs_sb_info *sbi,
nid_t ino) { }
+static inline void f2fs_invalidate_compress_pages_range(struct f2fs_sb_info *sbi,
+ block_t blkaddr, int cnt) { }
#define inc_compr_inode_stat(inode) do { } while (0)
static inline int f2fs_is_compressed_cluster(
struct inode *inode,
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 7057efa8ec17..634691e3b5f1 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -612,6 +612,18 @@ static int f2fs_file_open(struct inode *inode, struct file *filp)
return finish_preallocate_blocks(inode);
}
+static bool check_f2fs_invalidate_consecutive_blocks(struct f2fs_sb_info *sbi,
+ block_t blkaddr1, block_t blkaddr2)
+{
+ if (blkaddr2 - blkaddr1 != 1)
+ return false;
+
+ if (GET_SEGNO(sbi, blkaddr1) != GET_SEGNO(sbi, blkaddr2))
+ return false;
+
+ return true;
+}
+
void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count)
{
struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);
@@ -621,6 +633,9 @@ void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count)
int cluster_index = 0, valid_blocks = 0;
int cluster_size = F2FS_I(dn->inode)->i_cluster_size;
bool released = !atomic_read(&F2FS_I(dn->inode)->i_compr_blocks);
+ block_t con_start;
+ bool run_invalid = true;
+ int con_cnt = 1;
addr = get_dnode_addr(dn->inode, dn->node_page) + ofs;
@@ -652,7 +667,24 @@ void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count)
valid_blocks++;
}
- f2fs_invalidate_blocks(sbi, blkaddr);
+ if (run_invalid)
+ con_start = blkaddr;
+
+ if (count > 1 &&
+ check_f2fs_invalidate_consecutive_blocks(sbi, blkaddr,
+ le32_to_cpu(*(addr + 1)))) {
+ run_invalid = false;
+
+ if (con_cnt++ == 1)
+ con_start = blkaddr;
+ } else {
+ run_invalid = true;
+ }
+
+ if (run_invalid) {
+ f2fs_invalidate_consecutive_blocks(sbi, con_start, con_cnt);
+ con_cnt = 1;
+ }
if (!released || blkaddr != COMPRESS_ADDR)
nr_free++;
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index f118faf36d35..edb8a78985ba 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -2570,6 +2570,31 @@ void f2fs_invalidate_blocks(struct f2fs_sb_info *sbi, block_t addr)
up_write(&sit_i->sentry_lock);
}
+void f2fs_invalidate_consecutive_blocks(struct f2fs_sb_info *sbi, block_t addr, int cnt)
+{
+ unsigned int segno = GET_SEGNO(sbi, addr);
+ unsigned int segno2 = GET_SEGNO(sbi, addr + cnt - 1);
+ struct sit_info *sit_i = SIT_I(sbi);
+
+ f2fs_bug_on(sbi, addr == NULL_ADDR || segno != segno2);
+ if (addr == NEW_ADDR || addr == COMPRESS_ADDR)
+ return;
+
+ f2fs_truncate_meta_inode_pages(sbi, addr, cnt);
+ f2fs_invalidate_compress_pages_range(sbi, addr, cnt);
+
+ /* add it into sit main buffer */
+ down_write(&sit_i->sentry_lock);
+
+ update_segment_mtime(sbi, addr, 0);
+ update_sit_entry(sbi, addr, -cnt);
+
+ /* add it into dirty seglist */
+ locate_dirty_segment(sbi, segno);
+
+ up_write(&sit_i->sentry_lock);
+}
+
bool f2fs_is_checkpointed_data(struct f2fs_sb_info *sbi, block_t blkaddr)
{
struct sit_info *sit_i = SIT_I(sbi);
--
2.25.1
Powered by blists - more mailing lists