From: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
Replace the moveon returns in the phase 5 code with a direct integer
error return.
Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
---
scrub/phase5.c | 184 ++++++++++++++++++++++++++++++--------------------------
1 file changed, 97 insertions(+), 87 deletions(-)
diff --git a/scrub/phase5.c b/scrub/phase5.c
index c2cccd76..2641a7fb 100644
--- a/scrub/phase5.c
+++ b/scrub/phase5.c
@@ -31,9 +31,11 @@
* terminal control characters and escape sequences, since that could be used
* to do something naughty to the user's computer and/or break scripts. XFS
* doesn't consider any byte sequence invalid, so don't flag these as errors.
+ *
+ * Returns 0 for success or -1 for error. This function logs errors.
*/
-static bool
-xfs_scrub_check_name(
+static int
+simple_check_name(
struct scrub_ctx *ctx,
struct descr *dsc,
const char *namedescr,
@@ -46,7 +48,7 @@ xfs_scrub_check_name(
/* Complain about zero length names. */
if (*name == '\0' && should_warn_about_name(ctx)) {
str_warn(ctx, descr_render(dsc), _("Zero length name found."));
- return true;
+ return 0;
}
/* control characters */
@@ -61,7 +63,7 @@ xfs_scrub_check_name(
errname = string_escape(name);
if (!errname) {
str_errno(ctx, descr_render(dsc));
- return false;
+ return -1;
}
str_info(ctx, descr_render(dsc),
_("Control character found in %s name \"%s\"."),
@@ -69,15 +71,15 @@ _("Control character found in %s name \"%s\"."),
free(errname);
}
- return true;
+ return 0;
}
/*
* Iterate a directory looking for filenames with problematic
* characters.
*/
-static bool
-xfs_scrub_scan_dirents(
+static int
+check_dirent_names(
struct scrub_ctx *ctx,
struct descr *dsc,
int *fd,
@@ -86,45 +88,45 @@ xfs_scrub_scan_dirents(
struct unicrash *uc = NULL;
DIR *dir;
struct dirent *dentry;
- bool moveon = true;
int ret;
dir = fdopendir(*fd);
if (!dir) {
str_errno(ctx, descr_render(dsc));
- moveon = false;
- goto out;
+ return errno;
}
*fd = -1; /* closedir will close *fd for us */
ret = unicrash_dir_init(&uc, ctx, bstat);
if (ret) {
str_liberror(ctx, ret, descr_render(dsc));
- moveon = false;
goto out_unicrash;
}
+ errno = 0;
dentry = readdir(dir);
while (dentry) {
- if (uc) {
+ if (uc)
ret = unicrash_check_dir_name(uc, dsc, dentry);
- if (ret) {
- str_liberror(ctx, ret, descr_render(dsc));
- moveon = false;
- }
- } else
- moveon = xfs_scrub_check_name(ctx, dsc,
- _("directory"), dentry->d_name);
- if (!moveon)
+ else
+ ret = simple_check_name(ctx, dsc, _("directory"),
+ dentry->d_name);
+ if (ret) {
+ str_liberror(ctx, ret, descr_render(dsc));
break;
+ }
+ errno = 0;
dentry = readdir(dir);
}
+ if (errno) {
+ ret = errno;
+ str_liberror(ctx, ret, descr_render(dsc));
+ }
unicrash_free(uc);
out_unicrash:
closedir(dir);
-out:
- return moveon;
+ return ret;
}
#ifdef HAVE_LIBATTR
@@ -145,8 +147,8 @@ static const struct attrns_decode attr_ns[] = {
* Check all the xattr names in a particular namespace of a file handle
* for Unicode normalization problems or collisions.
*/
-static bool
-xfs_scrub_scan_fhandle_namespace_xattrs(
+static int
+check_xattr_ns_names(
struct scrub_ctx *ctx,
struct descr *dsc,
struct xfs_handle *handle,
@@ -159,14 +161,13 @@ xfs_scrub_scan_fhandle_namespace_xattrs(
struct attrlist *attrlist = (struct attrlist *)attrbuf;
struct attrlist_ent *ent;
struct unicrash *uc = NULL;
- bool moveon = true;
int i;
int error;
error = unicrash_xattr_init(&uc, ctx, bstat);
if (error) {
str_liberror(ctx, error, descr_render(dsc));
- return false;
+ return error;
}
memset(attrbuf, 0, XFS_XATTR_LIST_MAX);
@@ -180,20 +181,17 @@ xfs_scrub_scan_fhandle_namespace_xattrs(
ent = ATTR_ENTRY(attrlist, i);
snprintf(keybuf, XATTR_NAME_MAX, "%s.%s", attr_ns->name,
ent->a_name);
- if (uc) {
+ if (uc)
error = unicrash_check_xattr_name(uc, dsc,
keybuf);
- if (error) {
- str_liberror(ctx, error,
- descr_render(dsc));
- moveon = false;
- }
- } else
- moveon = xfs_scrub_check_name(ctx, dsc,
+ else
+ error = simple_check_name(ctx, dsc,
_("extended attribute"),
keybuf);
- if (!moveon)
+ if (error) {
+ str_liberror(ctx, error, descr_render(dsc));
goto out;
+ }
}
if (!attrlist->al_more)
@@ -201,37 +199,40 @@ xfs_scrub_scan_fhandle_namespace_xattrs(
error = attr_list_by_handle(handle, sizeof(*handle), attrbuf,
XFS_XATTR_LIST_MAX, attr_ns->flags, &cur);
}
- if (error && errno != ESTALE)
- str_errno(ctx, descr_render(dsc));
+ if (error) {
+ if (errno == ESTALE)
+ errno = 0;
+ if (errno)
+ str_errno(ctx, descr_render(dsc));
+ }
out:
unicrash_free(uc);
- return moveon;
+ return error;
}
/*
* Check all the xattr names in all the xattr namespaces for problematic
* characters.
*/
-static bool
-xfs_scrub_scan_fhandle_xattrs(
+static int
+check_xattr_names(
struct scrub_ctx *ctx,
struct descr *dsc,
struct xfs_handle *handle,
struct xfs_bulkstat *bstat)
{
const struct attrns_decode *ns;
- bool moveon = true;
+ int ret;
for (ns = attr_ns; ns->name; ns++) {
- moveon = xfs_scrub_scan_fhandle_namespace_xattrs(ctx, dsc,
- handle, bstat, ns);
- if (!moveon)
+ ret = check_xattr_ns_names(ctx, dsc, handle, bstat, ns);
+ if (ret)
break;
}
- return moveon;
+ return ret;
}
#else
-# define xfs_scrub_scan_fhandle_xattrs(c, d, h, b) (true)
+# define check_xattr_names(c, d, h, b) (0)
#endif /* HAVE_LIBATTR */
static int
@@ -255,26 +256,25 @@ render_ino_from_handle(
* Check for potential Unicode collisions in names.
*/
static int
-xfs_scrub_connections(
+check_inode_names(
struct scrub_ctx *ctx,
struct xfs_handle *handle,
struct xfs_bulkstat *bstat,
void *arg)
{
- bool *pmoveon = arg;
DEFINE_DESCR(dsc, ctx, render_ino_from_handle);
- bool moveon = true;
+ bool *aborted = arg;
int fd = -1;
- int error;
+ int error = 0;
+ int err2;
descr_set(&dsc, bstat);
background_sleep();
/* Warn about naming problems in xattrs. */
if (bstat->bs_xflags & FS_XFLAG_HASATTR) {
- moveon = xfs_scrub_scan_fhandle_xattrs(ctx, &dsc, handle,
- bstat);
- if (!moveon)
+ error = check_xattr_names(ctx, &dsc, handle, bstat);
+ if (error)
goto out;
}
@@ -282,7 +282,8 @@ xfs_scrub_connections(
if (S_ISDIR(bstat->bs_mode)) {
fd = scrub_open_handle(handle);
if (fd < 0) {
- if (errno == ESTALE)
+ error = errno;
+ if (error == ESTALE)
return ESTALE;
str_errno(ctx, descr_render(&dsc));
goto out;
@@ -291,21 +292,27 @@ xfs_scrub_connections(
/* Warn about naming problems in the directory entries. */
if (fd >= 0 && S_ISDIR(bstat->bs_mode)) {
- moveon = xfs_scrub_scan_dirents(ctx, &dsc, &fd, bstat);
- if (!moveon)
+ error = check_dirent_names(ctx, &dsc, &fd, bstat);
+ if (error)
goto out;
}
out:
progress_add(1);
if (fd >= 0) {
- error = close(fd);
- if (error)
+ err2 = close(fd);
+ if (err2)
str_errno(ctx, descr_render(&dsc));
+ if (!error && err2)
+ error = err2;
}
- if (!moveon)
- *pmoveon = false;
- return *pmoveon ? 0 : XFS_ITERATE_INODES_ABORT;
+
+ if (error)
+ *aborted = true;
+ if (!error && *aborted)
+ error = ECANCELED;
+
+ return error;
}
#ifndef FS_IOC_GETFSLABEL
@@ -327,20 +334,19 @@ scrub_render_mountpoint(
* Check the filesystem label for Unicode normalization problems or misleading
* sequences.
*/
-static bool
-xfs_scrub_fs_label(
+static int
+check_fs_label(
struct scrub_ctx *ctx)
{
DEFINE_DESCR(dsc, ctx, scrub_render_mountpoint);
char label[FSLABEL_MAX];
struct unicrash *uc = NULL;
- bool moveon = true;
int error;
error = unicrash_fs_label_init(&uc, ctx);
if (error) {
str_liberror(ctx, error, descr_render(&dsc));
- return false;
+ return error;
}
descr_set(&dsc, NULL);
@@ -349,7 +355,7 @@ xfs_scrub_fs_label(
error = ioctl(ctx->mnt.fd, FS_IOC_GETFSLABEL, &label);
if (error) {
if (errno != EOPNOTSUPP && errno != ENOTTY) {
- moveon = false;
+ error = errno;
perror(ctx->mntpoint);
}
goto out;
@@ -360,45 +366,49 @@ xfs_scrub_fs_label(
goto out;
/* Otherwise check for weirdness. */
- if (uc) {
+ if (uc)
error = unicrash_check_fs_label(uc, &dsc, label);
- if (error) {
- str_liberror(ctx, error, descr_render(&dsc));
- moveon = false;
- }
- } else
- moveon = xfs_scrub_check_name(ctx, &dsc, _("filesystem label"),
+ else
+ error = simple_check_name(ctx, &dsc, _("filesystem label"),
label);
- if (!moveon)
- goto out;
+ if (error)
+ str_liberror(ctx, error, descr_render(&dsc));
out:
unicrash_free(uc);
- return moveon;
+ return error;
}
/* Check directory connectivity. */
-bool
-xfs_scan_connections(
+int
+phase5_func(
struct scrub_ctx *ctx)
{
- bool moveon = true;
+ bool aborted = false;
int ret;
if (ctx->corruptions_found || ctx->unfixable_errors) {
str_info(ctx, ctx->mntpoint,
_("Filesystem has errors, skipping connectivity checks."));
- return true;
+ return 0;
}
- ret = xfs_scrub_fs_label(ctx);
+ ret = check_fs_label(ctx);
if (ret)
- return false;
+ return ret;
- ret = scrub_scan_all_inodes(ctx, xfs_scrub_connections, &moveon);
+ ret = scrub_scan_all_inodes(ctx, check_inode_names, &aborted);
if (ret)
- return false;
- if (!moveon)
- return false;
+ return ret;
+ if (aborted)
+ return ECANCELED;
+
xfs_scrub_report_preen_triggers(ctx);
- return true;
+ return 0;
+}
+
+bool
+xfs_scan_connections(
+ struct scrub_ctx *ctx)
+{
+ return phase5_func(ctx) == 0;
}
