diff options
| author | Jeffle Xu <jefflexu@linux.alibaba.com> | 2022-04-25 20:21:33 +0800 |
|---|---|---|
| committer | Gao Xiang <hsiangkao@linux.alibaba.com> | 2022-05-18 00:11:19 +0800 |
| commit | c6be2bd0a5dd91f98d6b5d2df2c79bc32993352c (patch) | |
| tree | bc705998a4298763cba68de5119fd187409d7dd8 /fs/erofs/super.c | |
| parent | 93b856bb5f66ae149ed91876b17c8c3fca576615 (diff) | |
erofs: register fscache volume
A new fscache based mode is going to be introduced for erofs, in which
case on-demand read semantics is implemented through fscache.
As the first step, register fscache volume for each erofs filesystem.
That means, data blobs can not be shared among erofs filesystems. In the
following iteration, we are going to introduce the domain semantics, in
which case several erofs filesystems can belong to one domain, and data
blobs can be shared among these erofs filesystems of one domain.
Signed-off-by: Jeffle Xu <jefflexu@linux.alibaba.com>
Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Link: https://lore.kernel.org/r/20220425122143.56815-12-jefflexu@linux.alibaba.com
Acked-by: Chao Yu <chao@kernel.org>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Diffstat (limited to 'fs/erofs/super.c')
| -rw-r--r-- | fs/erofs/super.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/erofs/super.c b/fs/erofs/super.c index 46ca7917cb2a..402f919eef6b 100644 --- a/fs/erofs/super.c +++ b/fs/erofs/super.c @@ -641,6 +641,10 @@ static int erofs_fc_fill_super(struct super_block *sb, struct fs_context *fc) if (erofs_is_fscache_mode(sb)) { sb->s_blocksize = EROFS_BLKSIZ; sb->s_blocksize_bits = LOG_BLOCK_SIZE; + + err = erofs_fscache_register_fs(sb); + if (err) + return err; } else { if (!sb_set_blocksize(sb, EROFS_BLKSIZ)) { erofs_err(sb, "failed to set erofs blksize"); @@ -808,6 +812,7 @@ static void erofs_kill_sb(struct super_block *sb) erofs_free_dev_context(sbi->devs); fs_put_dax(sbi->dax_dev); + erofs_fscache_unregister_fs(sb); kfree(sbi); sb->s_fs_info = NULL; } |