| 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: <20240220031515.4039498-1-chao@kernel.org>
Date: Tue, 20 Feb 2024 11:15:15 +0800
From: Chao Yu <chao@...nel.org>
To: jaegeuk@...nel.org
Cc: linux-f2fs-devel@...ts.sourceforge.net,
linux-kernel@...r.kernel.org,
Chao Yu <chao@...nel.org>
Subject: [PATCH v2] f2fs: introduce get_available_block_count() for cleanup
There are very similar codes in inc_valid_block_count() and
inc_valid_node_count() which is used for available user block
count calculation.
This patch introduces a new helper get_available_block_count()
to include those common codes, and used it to clean up codes.
Signed-off-by: Chao Yu <chao@...nel.org>
---
v2:
- rebase to last dev-test branch
fs/f2fs/f2fs.h | 49 +++++++++++++++++++++++++++----------------------
1 file changed, 27 insertions(+), 22 deletions(-)
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 2b6c8de8737e..a1640be7dcbe 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -2278,6 +2278,27 @@ static inline bool __allow_reserved_blocks(struct f2fs_sb_info *sbi,
return false;
}
+static inline unsigned int get_available_block_count(struct f2fs_sb_info *sbi,
+ struct inode *inode, bool cap)
+{
+ block_t avail_user_block_count;
+
+ avail_user_block_count = sbi->user_block_count -
+ sbi->current_reserved_blocks;
+
+ if (!__allow_reserved_blocks(sbi, inode, cap))
+ avail_user_block_count -= F2FS_OPTION(sbi).root_reserved_blocks;
+
+ if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) {
+ if (avail_user_block_count > sbi->unusable_block_count)
+ avail_user_block_count -= sbi->unusable_block_count;
+ else
+ avail_user_block_count = 0;
+ }
+
+ return avail_user_block_count;
+}
+
static inline void f2fs_i_blocks_write(struct inode *, block_t, bool, bool);
static inline int inc_valid_block_count(struct f2fs_sb_info *sbi,
struct inode *inode, blkcnt_t *count, bool partial)
@@ -2303,18 +2324,8 @@ static inline int inc_valid_block_count(struct f2fs_sb_info *sbi,
spin_lock(&sbi->stat_lock);
sbi->total_valid_block_count += (block_t)(*count);
- avail_user_block_count = sbi->user_block_count -
- sbi->current_reserved_blocks;
+ avail_user_block_count = get_available_block_count(sbi, inode, true);
- if (!__allow_reserved_blocks(sbi, inode, true))
- avail_user_block_count -= F2FS_OPTION(sbi).root_reserved_blocks;
-
- if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) {
- if (avail_user_block_count > sbi->unusable_block_count)
- avail_user_block_count -= sbi->unusable_block_count;
- else
- avail_user_block_count = 0;
- }
if (unlikely(sbi->total_valid_block_count > avail_user_block_count)) {
if (!partial) {
spin_unlock(&sbi->stat_lock);
@@ -2610,7 +2621,8 @@ static inline int inc_valid_node_count(struct f2fs_sb_info *sbi,
struct inode *inode, bool is_inode)
{
block_t valid_block_count;
- unsigned int valid_node_count, user_block_count;
+ unsigned int valid_node_count;
+ unsigned int avail_user_block_count;
int err;
if (is_inode) {
@@ -2630,17 +2642,10 @@ static inline int inc_valid_node_count(struct f2fs_sb_info *sbi,
spin_lock(&sbi->stat_lock);
- valid_block_count = sbi->total_valid_block_count +
- sbi->current_reserved_blocks + 1;
-
- if (!__allow_reserved_blocks(sbi, inode, false))
- valid_block_count += F2FS_OPTION(sbi).root_reserved_blocks;
-
- user_block_count = sbi->user_block_count;
- if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
- user_block_count -= sbi->unusable_block_count;
+ valid_block_count = sbi->total_valid_block_count + 1;
+ avail_user_block_count = get_available_block_count(sbi, inode, false);
- if (unlikely(valid_block_count > user_block_count)) {
+ if (unlikely(valid_block_count > avail_user_block_count)) {
spin_unlock(&sbi->stat_lock);
goto enospc;
}
--
2.40.1
Powered by blists - more mailing lists