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| author | Hyeongseok Kim <hyeongseok@gmail.com> | 2021-03-02 14:05:20 +0900 |
|---|---|---|
| committer | Namjae Jeon <namjae.jeon@samsung.com> | 2021-04-27 20:45:06 +0900 |
| commit | 5c2d728507299f84631ab8020d6f0f98f2cb8fc2 (patch) | |
| tree | baf8a7fed6645523987a98b3e66ac693227a4d4b /fs/exfat/exfat_fs.h | |
| parent | 77edfc6e51055b61cae2f54c8e6c3bb7c762e4fe (diff) | |
exfat: introduce bitmap_lock for cluster bitmap access
s_lock which is for protecting concurrent access of file operations is
too huge for cluster bitmap protection, so introduce a new bitmap_lock
to narrow the lock range if only need to access cluster bitmap.
Signed-off-by: Hyeongseok Kim <hyeongseok@gmail.com>
Acked-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Diffstat (limited to 'fs/exfat/exfat_fs.h')
| -rw-r--r-- | fs/exfat/exfat_fs.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/exfat/exfat_fs.h b/fs/exfat/exfat_fs.h index fa21421a14d9..e05e0a3152c0 100644 --- a/fs/exfat/exfat_fs.h +++ b/fs/exfat/exfat_fs.h @@ -238,6 +238,7 @@ struct exfat_sb_info { unsigned int used_clusters; /* number of used clusters */ struct mutex s_lock; /* superblock lock */ + struct mutex bitmap_lock; /* bitmap lock */ struct exfat_mount_options options; struct nls_table *nls_io; /* Charset used for input and display */ struct ratelimit_state ratelimit; |