From: Jeffle Xu <jefflexu@linux.alibaba.com> To: dhowells@redhat.com, linux-cachefs@redhat.com, xiang@kernel.org, chao@kernel.org, linux-erofs@lists.ozlabs.org Cc: torvalds@linux-foundation.org, gregkh@linuxfoundation.org, willy@infradead.org, linux-fsdevel@vger.kernel.org, joseph.qi@linux.alibaba.com, bo.liu@linux.alibaba.com, tao.peng@linux.alibaba.com, gerry@linux.alibaba.com, eguan@linux.alibaba.com, linux-kernel@vger.kernel.org, luodaowen.backend@bytedance.com, tianzichen@kuaishou.com, fannaihao@baidu.com, zhangjiachen.jaycee@bytedance.com, zhujia.zj@bytedance.com Subject: [PATCH v10 12/21] erofs: add fscache context helper functions Date: Mon, 25 Apr 2022 20:21:34 +0800 [thread overview] Message-ID: <20220425122143.56815-13-jefflexu@linux.alibaba.com> (raw) In-Reply-To: <20220425122143.56815-1-jefflexu@linux.alibaba.com> Introduce a context structure for managing data blobs, and helper functions for initializing and cleaning up this context structure. Signed-off-by: Jeffle Xu <jefflexu@linux.alibaba.com> Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com> --- fs/erofs/fscache.c | 41 +++++++++++++++++++++++++++++++++++++++++ fs/erofs/internal.h | 19 +++++++++++++++++++ 2 files changed, 60 insertions(+) diff --git a/fs/erofs/fscache.c b/fs/erofs/fscache.c index 7a6d0239ebb1..dfff245b006b 100644 --- a/fs/erofs/fscache.c +++ b/fs/erofs/fscache.c @@ -5,6 +5,47 @@ #include <linux/fscache.h> #include "internal.h" +int erofs_fscache_register_cookie(struct super_block *sb, + struct erofs_fscache **fscache, char *name) +{ + struct fscache_volume *volume = EROFS_SB(sb)->volume; + struct erofs_fscache *ctx; + struct fscache_cookie *cookie; + + ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); + if (!ctx) + return -ENOMEM; + + cookie = fscache_acquire_cookie(volume, FSCACHE_ADV_WANT_CACHE_SIZE, + name, strlen(name), NULL, 0, 0); + if (!cookie) { + erofs_err(sb, "failed to get cookie for %s", name); + kfree(name); + return -EINVAL; + } + + fscache_use_cookie(cookie, false); + ctx->cookie = cookie; + + *fscache = ctx; + return 0; +} + +void erofs_fscache_unregister_cookie(struct erofs_fscache **fscache) +{ + struct erofs_fscache *ctx = *fscache; + + if (!ctx) + return; + + fscache_unuse_cookie(ctx->cookie, NULL, NULL); + fscache_relinquish_cookie(ctx->cookie, false); + ctx->cookie = NULL; + + kfree(ctx); + *fscache = NULL; +} + int erofs_fscache_register_fs(struct super_block *sb) { struct erofs_sb_info *sbi = EROFS_SB(sb); diff --git a/fs/erofs/internal.h b/fs/erofs/internal.h index e4f6a13f161f..b1f19f058503 100644 --- a/fs/erofs/internal.h +++ b/fs/erofs/internal.h @@ -97,6 +97,10 @@ struct erofs_sb_lz4_info { u16 max_pclusterblks; }; +struct erofs_fscache { + struct fscache_cookie *cookie; +}; + struct erofs_sb_info { struct erofs_mount_opts opt; /* options */ #ifdef CONFIG_EROFS_FS_ZIP @@ -626,12 +630,27 @@ static inline int z_erofs_load_lzma_config(struct super_block *sb, #ifdef CONFIG_EROFS_FS_ONDEMAND int erofs_fscache_register_fs(struct super_block *sb); void erofs_fscache_unregister_fs(struct super_block *sb); + +int erofs_fscache_register_cookie(struct super_block *sb, + struct erofs_fscache **fscache, char *name); +void erofs_fscache_unregister_cookie(struct erofs_fscache **fscache); #else static inline int erofs_fscache_register_fs(struct super_block *sb) { return 0; } static inline void erofs_fscache_unregister_fs(struct super_block *sb) {} + +static inline int erofs_fscache_register_cookie(struct super_block *sb, + struct erofs_fscache **fscache, + char *name) +{ + return -EOPNOTSUPP; +} + +static inline void erofs_fscache_unregister_cookie(struct erofs_fscache **fscache) +{ +} #endif #define EFSCORRUPTED EUCLEAN /* Filesystem is corrupted */ -- 2.27.0
WARNING: multiple messages have this Message-ID (diff)
From: Jeffle Xu <jefflexu@linux.alibaba.com> To: dhowells@redhat.com, linux-cachefs@redhat.com, xiang@kernel.org, chao@kernel.org, linux-erofs@lists.ozlabs.org Cc: gregkh@linuxfoundation.org, fannaihao@baidu.com, willy@infradead.org, linux-kernel@vger.kernel.org, tianzichen@kuaishou.com, joseph.qi@linux.alibaba.com, zhangjiachen.jaycee@bytedance.com, linux-fsdevel@vger.kernel.org, luodaowen.backend@bytedance.com, gerry@linux.alibaba.com, torvalds@linux-foundation.org Subject: [PATCH v10 12/21] erofs: add fscache context helper functions Date: Mon, 25 Apr 2022 20:21:34 +0800 [thread overview] Message-ID: <20220425122143.56815-13-jefflexu@linux.alibaba.com> (raw) In-Reply-To: <20220425122143.56815-1-jefflexu@linux.alibaba.com> Introduce a context structure for managing data blobs, and helper functions for initializing and cleaning up this context structure. Signed-off-by: Jeffle Xu <jefflexu@linux.alibaba.com> Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com> --- fs/erofs/fscache.c | 41 +++++++++++++++++++++++++++++++++++++++++ fs/erofs/internal.h | 19 +++++++++++++++++++ 2 files changed, 60 insertions(+) diff --git a/fs/erofs/fscache.c b/fs/erofs/fscache.c index 7a6d0239ebb1..dfff245b006b 100644 --- a/fs/erofs/fscache.c +++ b/fs/erofs/fscache.c @@ -5,6 +5,47 @@ #include <linux/fscache.h> #include "internal.h" +int erofs_fscache_register_cookie(struct super_block *sb, + struct erofs_fscache **fscache, char *name) +{ + struct fscache_volume *volume = EROFS_SB(sb)->volume; + struct erofs_fscache *ctx; + struct fscache_cookie *cookie; + + ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); + if (!ctx) + return -ENOMEM; + + cookie = fscache_acquire_cookie(volume, FSCACHE_ADV_WANT_CACHE_SIZE, + name, strlen(name), NULL, 0, 0); + if (!cookie) { + erofs_err(sb, "failed to get cookie for %s", name); + kfree(name); + return -EINVAL; + } + + fscache_use_cookie(cookie, false); + ctx->cookie = cookie; + + *fscache = ctx; + return 0; +} + +void erofs_fscache_unregister_cookie(struct erofs_fscache **fscache) +{ + struct erofs_fscache *ctx = *fscache; + + if (!ctx) + return; + + fscache_unuse_cookie(ctx->cookie, NULL, NULL); + fscache_relinquish_cookie(ctx->cookie, false); + ctx->cookie = NULL; + + kfree(ctx); + *fscache = NULL; +} + int erofs_fscache_register_fs(struct super_block *sb) { struct erofs_sb_info *sbi = EROFS_SB(sb); diff --git a/fs/erofs/internal.h b/fs/erofs/internal.h index e4f6a13f161f..b1f19f058503 100644 --- a/fs/erofs/internal.h +++ b/fs/erofs/internal.h @@ -97,6 +97,10 @@ struct erofs_sb_lz4_info { u16 max_pclusterblks; }; +struct erofs_fscache { + struct fscache_cookie *cookie; +}; + struct erofs_sb_info { struct erofs_mount_opts opt; /* options */ #ifdef CONFIG_EROFS_FS_ZIP @@ -626,12 +630,27 @@ static inline int z_erofs_load_lzma_config(struct super_block *sb, #ifdef CONFIG_EROFS_FS_ONDEMAND int erofs_fscache_register_fs(struct super_block *sb); void erofs_fscache_unregister_fs(struct super_block *sb); + +int erofs_fscache_register_cookie(struct super_block *sb, + struct erofs_fscache **fscache, char *name); +void erofs_fscache_unregister_cookie(struct erofs_fscache **fscache); #else static inline int erofs_fscache_register_fs(struct super_block *sb) { return 0; } static inline void erofs_fscache_unregister_fs(struct super_block *sb) {} + +static inline int erofs_fscache_register_cookie(struct super_block *sb, + struct erofs_fscache **fscache, + char *name) +{ + return -EOPNOTSUPP; +} + +static inline void erofs_fscache_unregister_cookie(struct erofs_fscache **fscache) +{ +} #endif #define EFSCORRUPTED EUCLEAN /* Filesystem is corrupted */ -- 2.27.0
next prev parent reply other threads:[~2022-04-25 12:23 UTC|newest] Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-04-25 12:21 [PATCH v10 00/21] fscache,erofs: fscache-based on-demand read semantics Jeffle Xu 2022-04-25 12:21 ` [PATCH v10 00/21] fscache, erofs: " Jeffle Xu 2022-04-25 12:21 ` [PATCH v10 01/21] cachefiles: extract write routine Jeffle Xu 2022-04-25 12:21 ` Jeffle Xu 2022-04-25 12:21 ` [PATCH v10 02/21] cachefiles: notify the user daemon when looking up cookie Jeffle Xu 2022-04-25 12:21 ` Jeffle Xu 2022-04-25 12:21 ` [PATCH v10 03/21] cachefiles: unbind cachefiles gracefully in on-demand mode Jeffle Xu 2022-04-25 12:21 ` Jeffle Xu 2022-04-25 12:21 ` [PATCH v10 04/21] cachefiles: notify the user daemon when withdrawing cookie Jeffle Xu 2022-04-25 12:21 ` Jeffle Xu 2022-04-25 12:21 ` [PATCH v10 05/21] cachefiles: implement on-demand read Jeffle Xu 2022-04-25 12:21 ` Jeffle Xu 2022-04-25 12:21 ` [PATCH v10 06/21] cachefiles: enable on-demand read mode Jeffle Xu 2022-04-25 12:21 ` Jeffle Xu 2022-04-25 12:21 ` [PATCH v10 07/21] cachefiles: add tracepoints for " Jeffle Xu 2022-04-25 12:21 ` Jeffle Xu 2022-04-25 12:21 ` [PATCH v10 08/21] cachefiles: document " Jeffle Xu 2022-04-25 12:21 ` Jeffle Xu 2022-04-25 12:21 ` [PATCH v10 09/21] erofs: make erofs_map_blocks() generally available Jeffle Xu 2022-04-25 12:21 ` Jeffle Xu 2022-04-25 12:21 ` [PATCH v10 10/21] erofs: add fscache mode check helper Jeffle Xu 2022-04-25 12:21 ` Jeffle Xu 2022-04-25 12:21 ` [PATCH v10 11/21] erofs: register fscache volume Jeffle Xu 2022-04-25 12:21 ` Jeffle Xu 2022-04-25 12:21 ` Jeffle Xu [this message] 2022-04-25 12:21 ` [PATCH v10 12/21] erofs: add fscache context helper functions Jeffle Xu 2022-04-25 12:21 ` [PATCH v10 13/21] erofs: add anonymous inode caching metadata for data blobs Jeffle Xu 2022-04-25 12:21 ` Jeffle Xu 2022-04-25 12:21 ` [PATCH v10 14/21] erofs: add erofs_fscache_read_folios() helper Jeffle Xu 2022-04-25 12:21 ` Jeffle Xu 2022-04-25 12:21 ` [PATCH v10 15/21] erofs: register fscache context for primary data blob Jeffle Xu 2022-04-25 12:21 ` Jeffle Xu 2022-04-25 12:21 ` [PATCH v10 16/21] erofs: register fscache context for extra data blobs Jeffle Xu 2022-04-25 12:21 ` Jeffle Xu 2022-04-25 12:21 ` [PATCH v10 17/21] erofs: implement fscache-based metadata read Jeffle Xu 2022-04-25 12:21 ` Jeffle Xu 2022-04-26 5:39 ` Gao Xiang 2022-04-26 5:39 ` Gao Xiang 2022-04-25 12:21 ` [PATCH v10 18/21] erofs: implement fscache-based data read for non-inline layout Jeffle Xu 2022-04-25 12:21 ` Jeffle Xu 2022-04-25 12:21 ` [PATCH v10 19/21] erofs: implement fscache-based data read for inline layout Jeffle Xu 2022-04-25 12:21 ` Jeffle Xu 2022-04-25 12:21 ` [PATCH v10 20/21] erofs: implement fscache-based data readahead Jeffle Xu 2022-04-25 12:21 ` Jeffle Xu 2022-04-26 5:43 ` Gao Xiang 2022-04-26 5:43 ` Gao Xiang 2022-04-25 12:21 ` [PATCH v10 21/21] erofs: add 'fsid' mount option Jeffle Xu 2022-04-25 12:21 ` Jeffle Xu 2022-04-26 12:54 ` [PATCH v10 00/21] fscache,erofs: fscache-based on-demand read semantics Gao Xiang 2022-04-26 12:54 ` Gao Xiang
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