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befs: use simpler while loop

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Replace goto with simpler while loop to make befs_readdir() more readable.

Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
This commit is contained in:
Luis de Bethencourt 2016-07-01 01:07:32 +01:00
parent 50858ef96d
commit 9ae51a32b1
1 changed files with 38 additions and 36 deletions
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74
fs/befs/linuxvfs.c
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@ -216,48 +216,50 @@ befs_readdir(struct file *file, struct dir_context *ctx)
befs_debug(sb, "---> %s name %pD, inode %ld, ctx->pos %lld",
__func__, file, inode->i_ino, ctx->pos);
more:
result = befs_btree_read(sb, ds, ctx->pos, BEFS_NAME_LEN + 1,
keybuf, &keysize, &value);
while (1) {
result = befs_btree_read(sb, ds, ctx->pos, BEFS_NAME_LEN + 1,
keybuf, &keysize, &value);
if (result == BEFS_ERR) {
befs_debug(sb, "<--- %s ERROR", __func__);
befs_error(sb, "IO error reading %pD (inode %lu)",
file, inode->i_ino);
return -EIO;
} else if (result == BEFS_BT_END) {
befs_debug(sb, "<--- %s END", __func__);
return 0;
} else if (result == BEFS_BT_EMPTY) {
befs_debug(sb, "<--- %s Empty directory", __func__);
return 0;
}
/* Convert to NLS */
if (BEFS_SB(sb)->nls) {
char *nlsname;
int nlsnamelen;
result =
befs_utf2nls(sb, keybuf, keysize, &nlsname, &nlsnamelen);
if (result < 0) {
if (result == BEFS_ERR) {
befs_debug(sb, "<--- %s ERROR", __func__);
return result;
befs_error(sb, "IO error reading %pD (inode %lu)",
file, inode->i_ino);
return -EIO;
} else if (result == BEFS_BT_END) {
befs_debug(sb, "<--- %s END", __func__);
return 0;
} else if (result == BEFS_BT_EMPTY) {
befs_debug(sb, "<--- %s Empty directory", __func__);
return 0;
}
if (!dir_emit(ctx, nlsname, nlsnamelen,
(ino_t) value, DT_UNKNOWN)) {
/* Convert to NLS */
if (BEFS_SB(sb)->nls) {
char *nlsname;
int nlsnamelen;
result =
befs_utf2nls(sb, keybuf, keysize, &nlsname,
&nlsnamelen);
if (result < 0) {
befs_debug(sb, "<--- %s ERROR", __func__);
return result;
}
if (!dir_emit(ctx, nlsname, nlsnamelen,
(ino_t) value, DT_UNKNOWN)) {
kfree(nlsname);
return 0;
}
kfree(nlsname);
return 0;
} else {
if (!dir_emit(ctx, keybuf, keysize,
(ino_t) value, DT_UNKNOWN))
return 0;
}
kfree(nlsname);
} else {
if (!dir_emit(ctx, keybuf, keysize,
(ino_t) value, DT_UNKNOWN))
return 0;
ctx->pos++;
}
ctx->pos++;
goto more;
}
static struct inode *