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, linux-fsdevel@vger.kernel.org, luodaowen.backend@bytedance.com, gerry@linux.alibaba.com, torvalds@linux-foundation.org Subject: [PATCH v8 11/20] erofs: add fscache context helper functions Date: Wed, 6 Apr 2022 15:56:03 +0800 [thread overview] Message-ID: <20220406075612.60298-12-jefflexu@linux.alibaba.com> (raw) In-Reply-To: <20220406075612.60298-1-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> --- fs/erofs/fscache.c | 46 +++++++++++++++++++++++++++++++++++++++++++++ fs/erofs/internal.h | 19 +++++++++++++++++++ 2 files changed, 65 insertions(+) diff --git a/fs/erofs/fscache.c b/fs/erofs/fscache.c index 7a6d0239ebb1..67a3c4935245 100644 --- a/fs/erofs/fscache.c +++ b/fs/erofs/fscache.c @@ -5,6 +5,52 @@ #include <linux/fscache.h> #include "internal.h" +/* + * Create an fscache context for data blob. + * Return: 0 on success and allocated fscache context is assigned to @fscache, + * negative error number on failure. + */ +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 952a2f483f94..c6a3351a4d7d 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 @@ -626,9 +630,24 @@ 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: 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 Subject: [PATCH v8 11/20] erofs: add fscache context helper functions Date: Wed, 6 Apr 2022 15:56:03 +0800 [thread overview] Message-ID: <20220406075612.60298-12-jefflexu@linux.alibaba.com> (raw) In-Reply-To: <20220406075612.60298-1-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> --- fs/erofs/fscache.c | 46 +++++++++++++++++++++++++++++++++++++++++++++ fs/erofs/internal.h | 19 +++++++++++++++++++ 2 files changed, 65 insertions(+) diff --git a/fs/erofs/fscache.c b/fs/erofs/fscache.c index 7a6d0239ebb1..67a3c4935245 100644 --- a/fs/erofs/fscache.c +++ b/fs/erofs/fscache.c @@ -5,6 +5,52 @@ #include <linux/fscache.h> #include "internal.h" +/* + * Create an fscache context for data blob. + * Return: 0 on success and allocated fscache context is assigned to @fscache, + * negative error number on failure. + */ +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 952a2f483f94..c6a3351a4d7d 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 @@ -626,9 +630,24 @@ 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:[~2022-04-06 7:56 UTC|newest] Thread overview: 110+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-04-06 7:55 [PATCH v8 00/20] fscache, erofs: fscache-based on-demand read semantics Jeffle Xu 2022-04-06 7:55 ` [PATCH v8 00/20] fscache,erofs: " Jeffle Xu 2022-04-06 7:55 ` [PATCH v8 01/20] cachefiles: unmark inode in use in error path Jeffle Xu 2022-04-06 7:55 ` Jeffle Xu 2022-04-06 7:55 ` [PATCH v8 02/20] cachefiles: extract write routine Jeffle Xu 2022-04-06 7:55 ` Jeffle Xu 2022-04-06 7:55 ` [PATCH v8 03/20] cachefiles: notify user daemon with anon_fd when looking up cookie Jeffle Xu 2022-04-06 7:55 ` Jeffle Xu 2022-04-06 7:55 ` [PATCH v8 04/20] cachefiles: notify user daemon when withdrawing cookie Jeffle Xu 2022-04-06 7:55 ` Jeffle Xu 2022-04-06 7:55 ` [PATCH v8 05/20] cachefiles: implement on-demand read Jeffle Xu 2022-04-06 7:55 ` Jeffle Xu 2022-04-06 7:55 ` [PATCH v8 06/20] cachefiles: enable on-demand read mode Jeffle Xu 2022-04-06 7:55 ` Jeffle Xu 2022-04-06 7:55 ` [PATCH v8 07/20] cachefiles: document " Jeffle Xu 2022-04-06 7:55 ` Jeffle Xu 2022-04-06 7:56 ` [PATCH v8 08/20] erofs: make erofs_map_blocks() generally available Jeffle Xu 2022-04-06 7:56 ` Jeffle Xu 2022-04-07 2:44 ` Gao Xiang 2022-04-07 2:44 ` Gao Xiang 2022-04-06 7:56 ` [PATCH v8 09/20] erofs: add mode checking helper Jeffle Xu 2022-04-06 7:56 ` Jeffle Xu 2022-04-07 2:46 ` Gao Xiang 2022-04-07 2:46 ` Gao Xiang 2022-04-06 7:56 ` [PATCH v8 10/20] erofs: register fscache volume Jeffle Xu 2022-04-06 7:56 ` Jeffle Xu 2022-04-07 2:50 ` Gao Xiang 2022-04-07 2:50 ` Gao Xiang 2022-04-06 7:56 ` Jeffle Xu [this message] 2022-04-06 7:56 ` [PATCH v8 11/20] erofs: add fscache context helper functions Jeffle Xu 2022-04-07 3:25 ` Gao Xiang 2022-04-07 3:25 ` Gao Xiang 2022-04-06 7:56 ` [PATCH v8 12/20] erofs: add anonymous inode managing page cache for data blob Jeffle Xu 2022-04-06 7:56 ` Jeffle Xu 2022-04-07 5:31 ` Gao Xiang 2022-04-07 5:31 ` Gao Xiang 2022-04-08 2:14 ` JeffleXu 2022-04-06 7:56 ` [PATCH v8 13/20] erofs: add erofs_fscache_read_folios() helper Jeffle Xu 2022-04-06 7:56 ` Jeffle Xu 2022-04-07 14:05 ` Gao Xiang 2022-04-07 14:05 ` Gao Xiang 2022-04-06 7:56 ` [PATCH v8 14/20] erofs: register fscache context for primary data blob Jeffle Xu 2022-04-06 7:56 ` Jeffle Xu 2022-04-07 14:09 ` Gao Xiang 2022-04-07 14:09 ` Gao Xiang 2022-04-06 7:56 ` [PATCH v8 15/20] erofs: register fscache context for extra data blobs Jeffle Xu 2022-04-06 7:56 ` Jeffle Xu 2022-04-07 14:15 ` Gao Xiang 2022-04-07 14:15 ` Gao Xiang 2022-04-08 2:11 ` JeffleXu 2022-04-06 7:56 ` [PATCH v8 16/20] erofs: implement fscache-based metadata read Jeffle Xu 2022-04-06 7:56 ` Jeffle Xu 2022-04-07 14:19 ` Gao Xiang 2022-04-07 14:19 ` Gao Xiang 2022-04-06 7:56 ` [PATCH v8 17/20] erofs: implement fscache-based data read for non-inline layout Jeffle Xu 2022-04-06 7:56 ` Jeffle Xu 2022-04-07 14:24 ` Gao Xiang 2022-04-07 14:24 ` Gao Xiang 2022-04-06 7:56 ` [PATCH v8 18/20] erofs: implement fscache-based data read for inline layout Jeffle Xu 2022-04-06 7:56 ` Jeffle Xu 2022-04-07 14:31 ` Gao Xiang 2022-04-07 14:31 ` Gao Xiang 2022-04-06 7:56 ` [PATCH v8 19/20] erofs: implement fscache-based data readahead Jeffle Xu 2022-04-06 7:56 ` Jeffle Xu 2022-04-07 14:36 ` Gao Xiang 2022-04-07 14:36 ` Gao Xiang 2022-04-06 7:56 ` [PATCH v8 20/20] erofs: add 'fsid' mount option Jeffle Xu 2022-04-06 7:56 ` Jeffle Xu 2022-04-07 14:39 ` Gao Xiang 2022-04-07 14:39 ` Gao Xiang 2022-04-10 12:51 ` [PATCH v8 00/20] fscache,erofs: fscache-based on-demand read semantics Gao Xiang 2022-04-10 12:51 ` Gao Xiang 2022-04-13 12:27 ` 田子晨 2022-04-13 12:27 ` 田子晨 2022-04-14 8:10 ` Jiachen Zhang 2022-04-14 8:10 ` Re: [PATCH v8 00/20] fscache, erofs: " Jiachen Zhang 2022-04-14 9:29 ` Re: [PATCH v8 00/20] fscache,erofs: " Gao Xiang 2022-04-14 9:29 ` Re: [PATCH v8 00/20] fscache, erofs: " Gao Xiang 2022-04-11 12:13 ` [PATCH v8 02/20] cachefiles: extract write routine David Howells 2022-04-11 12:13 ` David Howells 2022-04-11 12:29 ` JeffleXu 2022-04-11 12:29 ` JeffleXu 2022-04-11 12:28 ` [PATCH v8 03/20] cachefiles: notify user daemon with anon_fd when looking up cookie David Howells 2022-04-11 12:28 ` David Howells 2022-04-11 12:36 ` JeffleXu 2022-04-11 12:36 ` JeffleXu 2022-04-11 12:32 ` David Howells 2022-04-11 12:32 ` David Howells 2022-04-11 12:36 ` JeffleXu 2022-04-11 12:36 ` JeffleXu 2022-04-11 12:35 ` [PATCH v8 04/20] cachefiles: notify user daemon when withdrawing cookie David Howells 2022-04-11 12:35 ` David Howells 2022-04-11 12:48 ` JeffleXu 2022-04-11 12:48 ` JeffleXu 2022-04-11 13:42 ` David Howells 2022-04-11 13:42 ` David Howells 2022-04-12 3:35 ` JeffleXu 2022-04-12 3:35 ` JeffleXu 2022-04-11 12:44 ` [PATCH v8 05/20] cachefiles: implement on-demand read David Howells 2022-04-11 12:44 ` David Howells 2022-04-11 12:50 ` JeffleXu 2022-04-11 12:50 ` JeffleXu 2022-04-11 13:38 ` [PATCH v8 07/20] cachefiles: document on-demand read mode David Howells 2022-04-11 13:38 ` David Howells 2022-04-12 3:17 ` JeffleXu 2022-04-12 3:17 ` JeffleXu 2022-04-11 13:43 ` [PATCH v8 00/20] fscache,erofs: fscache-based on-demand read semantics David Howells 2022-04-11 13:43 ` [PATCH v8 00/20] fscache, erofs: " David Howells 2022-04-12 3:18 ` [PATCH v8 00/20] fscache,erofs: " JeffleXu 2022-04-12 3:18 ` JeffleXu
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