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| author | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2011-06-03 13:45:09 +0300 |
|---|---|---|
| committer | Artem Bityutskiy <dedekind1@gmail.com> | 2011-07-04 10:54:33 +0300 |
| commit | 83cef708c606f46a2b527af025acb3d24555f0c4 (patch) | |
| tree | f5f91da8f13a7f013304ae596e56e7d52a5dcd76 /fs/ubifs/ubifs.h | |
| parent | d033c98b17ecf30d64d83d96938ce7bfb47f7520 (diff) | |
| download | lwn-83cef708c606f46a2b527af025acb3d24555f0c4.tar.gz lwn-83cef708c606f46a2b527af025acb3d24555f0c4.zip | |
UBIFS: introduce more I/O helpers
Introduce the following I/O helper functions: 'ubifs_leb_read()',
'ubifs_leb_write()', 'ubifs_leb_change()', 'ubifs_leb_unmap()',
'ubifs_leb_map()', 'ubifs_is_mapped().
The idea is to wrap all UBI I/O functions in order to encapsulate various
assertions and error path handling (error message, stack dump, switching to R/O
mode). And there are some other benefits of this which will be used in the
following patches.
This patch does not switch whole UBIFS to use these functions yet.
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Diffstat (limited to 'fs/ubifs/ubifs.h')
| -rw-r--r-- | fs/ubifs/ubifs.h | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/fs/ubifs/ubifs.h b/fs/ubifs/ubifs.h index 3304aad04885..702b79258e30 100644 --- a/fs/ubifs/ubifs.h +++ b/fs/ubifs/ubifs.h @@ -1468,6 +1468,15 @@ extern struct ubifs_compressor *ubifs_compressors[UBIFS_COMPR_TYPES_CNT]; /* io.c */ void ubifs_ro_mode(struct ubifs_info *c, int err); +int ubifs_leb_read(const struct ubifs_info *c, int lnum, void *buf, int offs, + int len, int even_ebadmsg); +int ubifs_leb_write(struct ubifs_info *c, int lnum, const void *buf, int offs, + int len, int dtype); +int ubifs_leb_change(struct ubifs_info *c, int lnum, const void *buf, int len, + int dtype); +int ubifs_leb_unmap(struct ubifs_info *c, int lnum); +int ubifs_leb_map(struct ubifs_info *c, int lnum, int dtype); +int ubifs_is_mapped(const struct ubifs_info *c, int lnum); int ubifs_wbuf_write_nolock(struct ubifs_wbuf *wbuf, void *buf, int len); int ubifs_wbuf_seek_nolock(struct ubifs_wbuf *wbuf, int lnum, int offs, int dtype); @@ -1747,8 +1756,8 @@ struct ubifs_scan_leb *ubifs_recover_leb(struct ubifs_info *c, int lnum, int offs, void *sbuf, int jhead); struct ubifs_scan_leb *ubifs_recover_log_leb(struct ubifs_info *c, int lnum, int offs, void *sbuf); -int ubifs_recover_inl_heads(const struct ubifs_info *c, void *sbuf); -int ubifs_clean_lebs(const struct ubifs_info *c, void *sbuf); +int ubifs_recover_inl_heads(struct ubifs_info *c, void *sbuf); +int ubifs_clean_lebs(struct ubifs_info *c, void *sbuf); int ubifs_rcvry_gc_commit(struct ubifs_info *c); int ubifs_recover_size_accum(struct ubifs_info *c, union ubifs_key *key, int deletion, loff_t new_size); |