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| author | Chi Zhiling <chizhiling@kylinos.cn> | 2026-01-14 15:12:44 +0300 |
|---|---|---|
| committer | Namjae Jeon <linkinjeon@kernel.org> | 2026-02-12 15:21:50 +0300 |
| commit | 6d0b7f873bbd153f6ce26a87ffa32238693e36a0 (patch) | |
| tree | d458e3f075d4cc4cbf500e6ff709313da6da427e | |
| parent | afb6ffa33dab9622f7502c081b17dbc9bc9a97d0 (diff) | |
| download | linux-6d0b7f873bbd153f6ce26a87ffa32238693e36a0.tar.xz | |
exfat: reuse cache to improve exfat_get_cluster
Since exfat_ent_get supports cache buffer head, we can use this option to
reduce sb_bread calls when fetching consecutive entries.
Signed-off-by: Chi Zhiling <chizhiling@kylinos.cn>
Reviewed-by: Yuezhang Mo <Yuezhang.Mo@sony.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
| -rw-r--r-- | fs/exfat/cache.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/exfat/cache.c b/fs/exfat/cache.c index b806e7f5b00f..025b39b7a9ac 100644 --- a/fs/exfat/cache.c +++ b/fs/exfat/cache.c @@ -238,6 +238,7 @@ int exfat_get_cluster(struct inode *inode, unsigned int cluster, { struct super_block *sb = inode->i_sb; struct exfat_inode_info *ei = EXFAT_I(inode); + struct buffer_head *bh = NULL; struct exfat_cache_id cid; unsigned int content, fclus; @@ -265,7 +266,7 @@ int exfat_get_cluster(struct inode *inode, unsigned int cluster, return 0; while (fclus < cluster) { - if (exfat_ent_get(sb, *dclus, &content, NULL)) + if (exfat_ent_get(sb, *dclus, &content, &bh)) return -EIO; *last_dclus = *dclus; @@ -279,6 +280,7 @@ int exfat_get_cluster(struct inode *inode, unsigned int cluster, cache_init(&cid, fclus, *dclus); } + brelse(bh); exfat_cache_add(inode, &cid); return 0; } |