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authorArtem Bityutskiy <Artem.Bityutskiy@nokia.com>2011-06-03 13:45:09 +0300
committerArtem Bityutskiy <dedekind1@gmail.com>2011-07-04 10:54:33 +0300
commit83cef708c606f46a2b527af025acb3d24555f0c4 (patch)
treef5f91da8f13a7f013304ae596e56e7d52a5dcd76 /fs/ubifs/misc.h
parentd033c98b17ecf30d64d83d96938ce7bfb47f7520 (diff)
downloadlinux-83cef708c606f46a2b527af025acb3d24555f0c4.tar.bz2
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/misc.h')
-rw-r--r--fs/ubifs/misc.h80
1 files changed, 0 insertions, 80 deletions
diff --git a/fs/ubifs/misc.h b/fs/ubifs/misc.h
index 160cd909e957..ee7cb5ebb6e8 100644
--- a/fs/ubifs/misc.h
+++ b/fs/ubifs/misc.h
@@ -145,86 +145,6 @@ static inline int ubifs_wbuf_sync(struct ubifs_wbuf *wbuf)
}
/**
- * ubifs_leb_unmap - unmap an LEB.
- * @c: UBIFS file-system description object
- * @lnum: LEB number to unmap
- *
- * This function returns %0 on success and a negative error code on failure.
- */
-static inline int ubifs_leb_unmap(const struct ubifs_info *c, int lnum)
-{
- int err;
-
- ubifs_assert(!c->ro_media && !c->ro_mount);
- if (c->ro_error)
- return -EROFS;
- err = ubi_leb_unmap(c->ubi, lnum);
- if (err) {
- ubifs_err("unmap LEB %d failed, error %d", lnum, err);
- return err;
- }
-
- return 0;
-}
-
-/**
- * ubifs_leb_write - write to a LEB.
- * @c: UBIFS file-system description object
- * @lnum: LEB number to write
- * @buf: buffer to write from
- * @offs: offset within LEB to write to
- * @len: length to write
- * @dtype: data type
- *
- * This function returns %0 on success and a negative error code on failure.
- */
-static inline int ubifs_leb_write(const struct ubifs_info *c, int lnum,
- const void *buf, int offs, int len, int dtype)
-{
- int err;
-
- ubifs_assert(!c->ro_media && !c->ro_mount);
- if (c->ro_error)
- return -EROFS;
- err = ubi_leb_write(c->ubi, lnum, buf, offs, len, dtype);
- if (err) {
- ubifs_err("writing %d bytes at %d:%d, error %d",
- len, lnum, offs, err);
- return err;
- }
-
- return 0;
-}
-
-/**
- * ubifs_leb_change - atomic LEB change.
- * @c: UBIFS file-system description object
- * @lnum: LEB number to write
- * @buf: buffer to write from
- * @len: length to write
- * @dtype: data type
- *
- * This function returns %0 on success and a negative error code on failure.
- */
-static inline int ubifs_leb_change(const struct ubifs_info *c, int lnum,
- const void *buf, int len, int dtype)
-{
- int err;
-
- ubifs_assert(!c->ro_media && !c->ro_mount);
- if (c->ro_error)
- return -EROFS;
- err = ubi_leb_change(c->ubi, lnum, buf, len, dtype);
- if (err) {
- ubifs_err("changing %d bytes in LEB %d, error %d",
- len, lnum, err);
- return err;
- }
-
- return 0;
-}
-
-/**
* ubifs_encode_dev - encode device node IDs.
* @dev: UBIFS device node information
* @rdev: device IDs to encode