X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libbcachefs%2Ferror.c;h=8ae95b218e8b0c9c1f8ba3a0ab1c2a58cad2b66d;hb=9866af841efddf6a8e56a5993fedc00cb65a0500;hp=545c55dabc277d341ee4e7c35343f83e9f734245;hpb=693e278c14efae893a6f051446fbbc0cf5e408cd;p=bcachefs-tools-debian

diff --git a/libbcachefs/error.c b/libbcachefs/error.c
index 545c55d..8ae95b2 100644
--- a/libbcachefs/error.c
+++ b/libbcachefs/error.c
@@ -1,14 +1,15 @@
 // SPDX-License-Identifier: GPL-2.0
 #include "bcachefs.h"
 #include "error.h"
-#include "io.h"
+#include "recovery.h"
 #include "super.h"
+#include <linux/thread_with_file.h>
 
 #define FSCK_ERR_RATELIMIT_NR	10
 
 bool bch2_inconsistent_error(struct bch_fs *c)
 {
-	set_bit(BCH_FS_ERROR, &c->flags);
+	set_bit(BCH_FS_error, &c->flags);
 
 	switch (c->opts.errors) {
 	case BCH_ON_ERROR_continue:
@@ -25,14 +26,16 @@ bool bch2_inconsistent_error(struct bch_fs *c)
 	}
 }
 
-void bch2_topology_error(struct bch_fs *c)
+int bch2_topology_error(struct bch_fs *c)
 {
-	if (!test_bit(BCH_FS_TOPOLOGY_REPAIR_DONE, &c->flags))
-		return;
-
-	set_bit(BCH_FS_TOPOLOGY_ERROR, &c->flags);
-	if (test_bit(BCH_FS_FSCK_DONE, &c->flags))
+	set_bit(BCH_FS_topology_error, &c->flags);
+	if (!test_bit(BCH_FS_fsck_running, &c->flags)) {
 		bch2_inconsistent_error(c);
+		return -BCH_ERR_btree_need_topology_repair;
+	} else {
+		return bch2_run_explicit_recovery_pass(c, BCH_RECOVERY_PASS_check_topology) ?:
+			-BCH_ERR_btree_node_read_validate_error;
+	}
 }
 
 void bch2_fatal_error(struct bch_fs *c)
@@ -60,8 +63,9 @@ void bch2_io_error_work(struct work_struct *work)
 	up_write(&c->state_lock);
 }
 
-void bch2_io_error(struct bch_dev *ca)
+void bch2_io_error(struct bch_dev *ca, enum bch_member_error_type type)
 {
+	atomic64_inc(&ca->errors[type]);
 	//queue_work(system_long_wq, &ca->io_error_work);
 }
 
@@ -72,39 +76,66 @@ enum ask_yn {
 	YN_ALLYES,
 };
 
+static enum ask_yn parse_yn_response(char *buf)
+{
+	buf = strim(buf);
+
+	if (strlen(buf) == 1)
+		switch (buf[0]) {
+		case 'n':
+			return YN_NO;
+		case 'y':
+			return YN_YES;
+		case 'N':
+			return YN_ALLNO;
+		case 'Y':
+			return YN_ALLYES;
+		}
+	return -1;
+}
+
 #ifdef __KERNEL__
-#define bch2_fsck_ask_yn()	YN_NO
+static enum ask_yn bch2_fsck_ask_yn(struct bch_fs *c)
+{
+	struct stdio_redirect *stdio = c->stdio;
+
+	if (c->stdio_filter && c->stdio_filter != current)
+		stdio = NULL;
+
+	if (!stdio)
+		return YN_NO;
+
+	char buf[100];
+	int ret;
+
+	do {
+		bch2_print(c, " (y,n, or Y,N for all errors of this type) ");
+
+		int r = stdio_redirect_readline(stdio, buf, sizeof(buf) - 1);
+		if (r < 0)
+			return YN_NO;
+		buf[r] = '\0';
+	} while ((ret = parse_yn_response(buf)) < 0);
+
+	return ret;
+}
 #else
 
 #include "tools-util.h"
 
-enum ask_yn bch2_fsck_ask_yn(void)
+static enum ask_yn bch2_fsck_ask_yn(struct bch_fs *c)
 {
 	char *buf = NULL;
 	size_t buflen = 0;
-	bool ret;
+	int ret;
 
-	while (true) {
-		fputs(" (y,n,Y,N) ", stdout);
+	do {
+		fputs(" (y,n, or Y,N for all errors of this type) ", stdout);
 		fflush(stdout);
 
 		if (getline(&buf, &buflen, stdin) < 0)
 			die("error reading from standard input");
-
-		if (strlen(buf) != 1)
-			continue;
-
-		switch (buf[0]) {
-		case 'n':
-			return YN_NO;
-		case 'y':
-			return YN_YES;
-		case 'N':
-			return YN_ALLNO;
-		case 'Y':
-			return YN_ALLYES;
-		}
-	}
+	} while ((ret = parse_yn_response(buf)) < 0);
 
 	free(buf);
 	return ret;
@@ -116,34 +147,37 @@ static struct fsck_err_state *fsck_err_get(struct bch_fs *c, const char *fmt)
 {
 	struct fsck_err_state *s;
 
-	if (test_bit(BCH_FS_FSCK_DONE, &c->flags))
+	if (!test_bit(BCH_FS_fsck_running, &c->flags))
 		return NULL;
 
-	list_for_each_entry(s, &c->fsck_errors, list)
+	list_for_each_entry(s, &c->fsck_error_msgs, list)
 		if (s->fmt == fmt) {
 			/*
 			 * move it to the head of the list: repeated fsck errors
 			 * are common
 			 */
-			list_move(&s->list, &c->fsck_errors);
+			list_move(&s->list, &c->fsck_error_msgs);
 			return s;
 		}
 
 	s = kzalloc(sizeof(*s), GFP_NOFS);
 	if (!s) {
-		if (!c->fsck_alloc_err)
+		if (!c->fsck_alloc_msgs_err)
 			bch_err(c, "kmalloc err, cannot ratelimit fsck errs");
-		c->fsck_alloc_err = true;
+		c->fsck_alloc_msgs_err = true;
 		return NULL;
 	}
 
 	INIT_LIST_HEAD(&s->list);
 	s->fmt = fmt;
-	list_add(&s->list, &c->fsck_errors);
+	list_add(&s->list, &c->fsck_error_msgs);
 	return s;
 }
 
-int bch2_fsck_err(struct bch_fs *c, unsigned flags, const char *fmt, ...)
+int bch2_fsck_err(struct bch_fs *c,
+		  enum bch_fsck_flags flags,
+		  enum bch_sb_error_id err,
+		  const char *fmt, ...)
 {
 	struct fsck_err_state *s = NULL;
 	va_list args;
@@ -151,11 +185,17 @@ int bch2_fsck_err(struct bch_fs *c, unsigned flags, const char *fmt, ...)
 	struct printbuf buf = PRINTBUF, *out = &buf;
 	int ret = -BCH_ERR_fsck_ignore;
 
+	if ((flags & FSCK_CAN_FIX) &&
+	    test_bit(err, c->sb.errors_silent))
+		return -BCH_ERR_fsck_fix;
+
+	bch2_sb_error_count(c, err);
+
 	va_start(args, fmt);
 	prt_vprintf(out, fmt, args);
 	va_end(args);
 
-	mutex_lock(&c->fsck_error_lock);
+	mutex_lock(&c->fsck_error_msgs_lock);
 	s = fsck_err_get(c, fmt);
 	if (s) {
 		/*
@@ -165,7 +205,7 @@ int bch2_fsck_err(struct bch_fs *c, unsigned flags, const char *fmt, ...)
 		 */
 		if (s->last_msg && !strcmp(buf.buf, s->last_msg)) {
 			ret = s->ret;
-			mutex_unlock(&c->fsck_error_lock);
+			mutex_unlock(&c->fsck_error_msgs_lock);
 			printbuf_exit(&buf);
 			return ret;
 		}
@@ -190,7 +230,7 @@ int bch2_fsck_err(struct bch_fs *c, unsigned flags, const char *fmt, ...)
 		prt_printf(out, bch2_log_msg(c, ""));
 #endif
 
-	if (test_bit(BCH_FS_FSCK_DONE, &c->flags)) {
+	if (!test_bit(BCH_FS_fsck_running, &c->flags)) {
 		if (c->opts.errors != BCH_ON_ERROR_continue ||
 		    !(flags & (FSCK_CAN_FIX|FSCK_CAN_IGNORE))) {
 			prt_str(out, ", shutting down");
@@ -203,7 +243,7 @@ int bch2_fsck_err(struct bch_fs *c, unsigned flags, const char *fmt, ...)
 			prt_str(out, ", continuing");
 			ret = -BCH_ERR_fsck_ignore;
 		}
-	} else if (c->opts.fix_errors == FSCK_OPT_EXIT) {
+	} else if (c->opts.fix_errors == FSCK_FIX_exit) {
 		prt_str(out, ", exiting");
 		ret = -BCH_ERR_fsck_errors_not_fixed;
 	} else if (flags & FSCK_CAN_FIX) {
@@ -211,24 +251,27 @@ int bch2_fsck_err(struct bch_fs *c, unsigned flags, const char *fmt, ...)
 			? s->fix
 			: c->opts.fix_errors;
 
-		if (fix == FSCK_OPT_ASK) {
+		if (fix == FSCK_FIX_ask) {
 			int ask;
 
 			prt_str(out, ": fix?");
-			bch2_print_string_as_lines(KERN_ERR, out->buf);
+			if (bch2_fs_stdio_redirect(c))
+				bch2_print(c, "%s", out->buf);
+			else
+				bch2_print_string_as_lines(KERN_ERR, out->buf);
 			print = false;
 
-			ask = bch2_fsck_ask_yn();
+			ask = bch2_fsck_ask_yn(c);
 
 			if (ask >= YN_ALLNO && s)
 				s->fix = ask == YN_ALLNO
-					? FSCK_OPT_NO
-					: FSCK_OPT_YES;
+					? FSCK_FIX_no
+					: FSCK_FIX_yes;
 
 			ret = ask & 1
 				? -BCH_ERR_fsck_fix
 				: -BCH_ERR_fsck_ignore;
-		} else if (fix == FSCK_OPT_YES ||
+		} else if (fix == FSCK_FIX_yes ||
 			   (c->opts.nochanges &&
 			    !(flags & FSCK_CAN_IGNORE))) {
 			prt_str(out, ", fixing");
@@ -243,14 +286,18 @@ int bch2_fsck_err(struct bch_fs *c, unsigned flags, const char *fmt, ...)
 	}
 
 	if (ret == -BCH_ERR_fsck_ignore &&
-	    (c->opts.fix_errors == FSCK_OPT_EXIT ||
+	    (c->opts.fix_errors == FSCK_FIX_exit ||
 	     !(flags & FSCK_CAN_IGNORE)))
 		ret = -BCH_ERR_fsck_errors_not_fixed;
 
-	if (print)
-		bch2_print_string_as_lines(KERN_ERR, out->buf);
+	if (print) {
+		if (bch2_fs_stdio_redirect(c))
+			bch2_print(c, "%s\n", out->buf);
+		else
+			bch2_print_string_as_lines(KERN_ERR, out->buf);
+	}
 
-	if (!test_bit(BCH_FS_FSCK_DONE, &c->flags) &&
+	if (test_bit(BCH_FS_fsck_running, &c->flags) &&
 	    (ret != -BCH_ERR_fsck_fix &&
 	     ret != -BCH_ERR_fsck_ignore))
 		bch_err(c, "Unable to continue, halting");
@@ -260,7 +307,7 @@ int bch2_fsck_err(struct bch_fs *c, unsigned flags, const char *fmt, ...)
 	if (s)
 		s->ret = ret;
 
-	mutex_unlock(&c->fsck_error_lock);
+	mutex_unlock(&c->fsck_error_msgs_lock);
 
 	printbuf_exit(&buf);
 
@@ -268,10 +315,10 @@ int bch2_fsck_err(struct bch_fs *c, unsigned flags, const char *fmt, ...)
 		bch2_inconsistent_error(c);
 
 	if (ret == -BCH_ERR_fsck_fix) {
-		set_bit(BCH_FS_ERRORS_FIXED, &c->flags);
+		set_bit(BCH_FS_errors_fixed, &c->flags);
 	} else {
-		set_bit(BCH_FS_ERRORS_NOT_FIXED, &c->flags);
-		set_bit(BCH_FS_ERROR, &c->flags);
+		set_bit(BCH_FS_errors_not_fixed, &c->flags);
+		set_bit(BCH_FS_error, &c->flags);
 	}
 
 	return ret;
@@ -281,9 +328,9 @@ void bch2_flush_fsck_errs(struct bch_fs *c)
 {
 	struct fsck_err_state *s, *n;
 
-	mutex_lock(&c->fsck_error_lock);
+	mutex_lock(&c->fsck_error_msgs_lock);
 
-	list_for_each_entry_safe(s, n, &c->fsck_errors, list) {
+	list_for_each_entry_safe(s, n, &c->fsck_error_msgs, list) {
 		if (s->ratelimited && s->last_msg)
 			bch_err(c, "Saw %llu errors like:\n    %s", s->nr, s->last_msg);
 
@@ -292,5 +339,5 @@ void bch2_flush_fsck_errs(struct bch_fs *c)
 		kfree(s);
 	}
 
-	mutex_unlock(&c->fsck_error_lock);
+	mutex_unlock(&c->fsck_error_msgs_lock);
 }