+// SPDX-License-Identifier: GPL-2.0+
/*
* This file is part of UBIFS.
*
* Copyright (C) 2006-2008 Nokia Corporation.
*
- * SPDX-License-Identifier: GPL-2.0+
- *
* Authors: Artem Bityutskiy (Битюцкий Артём)
* Adrian Hunter
*/
#include <linux/writeback.h>
#else
-#include <linux/compat.h>
+#include <common.h>
+#include <malloc.h>
+#include <memalign.h>
+#include <linux/bug.h>
+#include <linux/log2.h>
#include <linux/stat.h>
#include <linux/err.h>
#include "ubifs.h"
#define INODE_LOCKED_MAX 64
struct super_block *ubifs_sb;
-LIST_HEAD(super_blocks);
static struct inode *inodes_locked_down[INODE_LOCKED_MAX];
{
struct inode *inode;
- inode = (struct inode *)malloc(sizeof(struct ubifs_inode));
+ inode = (struct inode *)malloc_cache_aligned(
+ sizeof(struct ubifs_inode));
if (inode) {
inode->i_ino = ino;
inode->i_sb = sb;
}
if (i >= INODE_LOCKED_MAX) {
- ubifs_err("Error, can't lock (save) more inodes while recovery!!!");
+ dbg_gen("Error, can't lock (save) more inodes while recovery!!!");
return;
}
/*
* Allocate and use new inode
*/
- ino = (struct inode *)malloc(sizeof(struct ubifs_inode));
+ ino = (struct inode *)malloc_cache_aligned(sizeof(struct ubifs_inode));
memcpy(ino, inode, sizeof(struct ubifs_inode));
/*
const struct ubifs_inode *ui = ubifs_inode(inode);
if (inode->i_size > c->max_inode_sz) {
- ubifs_err("inode is too large (%lld)",
+ ubifs_err(c, "inode is too large (%lld)",
(long long)inode->i_size);
return 1;
}
- if (ui->compr_type < 0 || ui->compr_type >= UBIFS_COMPR_TYPES_CNT) {
- ubifs_err("unknown compression type %d", ui->compr_type);
+ if (ui->compr_type >= UBIFS_COMPR_TYPES_CNT) {
+ ubifs_err(c, "unknown compression type %d", ui->compr_type);
return 2;
}
return 5;
if (!ubifs_compr_present(ui->compr_type)) {
- ubifs_warn("inode %lu uses '%s' compression, but it was not compiled in",
+ ubifs_warn(c, "inode %lu uses '%s' compression, but it was not compiled in",
inode->i_ino, ubifs_compr_name(ui->compr_type));
}
goto out_invalid;
#ifndef __UBOOT__
- /* Disable read-ahead */
- inode->i_mapping->backing_dev_info = &c->bdi;
-
switch (inode->i_mode & S_IFMT) {
case S_IFREG:
inode->i_mapping->a_ops = &ubifs_file_address_operations;
}
memcpy(ui->data, ino->data, ui->data_len);
((char *)ui->data)[ui->data_len] = '\0';
+ inode->i_link = ui->data;
break;
case S_IFBLK:
case S_IFCHR:
return inode;
out_invalid:
- ubifs_err("inode %lu validation failed, error %d", inode->i_ino, err);
+ ubifs_err(c, "inode %lu validation failed, error %d", inode->i_ino, err);
ubifs_dump_node(c, ino);
ubifs_dump_inode(c, inode);
err = -EINVAL;
out_ino:
kfree(ino);
out:
- ubifs_err("failed to read inode %lu, error %d", inode->i_ino, err);
+ ubifs_err(c, "failed to read inode %lu, error %d", inode->i_ino, err);
iget_failed(inode);
return ERR_PTR(err);
}
if (inode->i_nlink) {
err = ubifs_jnl_write_inode(c, inode);
if (err)
- ubifs_err("can't write inode %lu, error %d",
+ ubifs_err(c, "can't write inode %lu, error %d",
inode->i_ino, err);
else
err = dbg_check_inode_size(c, inode, ui->ui_size);
* Worst case we have a lost orphan inode wasting space, so a
* simple error message is OK here.
*/
- ubifs_err("can't delete inode %lu, error %d",
+ ubifs_err(c, "can't delete inode %lu, error %d",
inode->i_ino, err);
out:
struct ubifs_info *c = root->d_sb->s_fs_info;
if (c->mount_opts.unmount_mode == 2)
- seq_printf(s, ",fast_unmount");
+ seq_puts(s, ",fast_unmount");
else if (c->mount_opts.unmount_mode == 1)
- seq_printf(s, ",norm_unmount");
+ seq_puts(s, ",norm_unmount");
if (c->mount_opts.bulk_read == 2)
- seq_printf(s, ",bulk_read");
+ seq_puts(s, ",bulk_read");
else if (c->mount_opts.bulk_read == 1)
- seq_printf(s, ",no_bulk_read");
+ seq_puts(s, ",no_bulk_read");
if (c->mount_opts.chk_data_crc == 2)
- seq_printf(s, ",chk_data_crc");
+ seq_puts(s, ",chk_data_crc");
else if (c->mount_opts.chk_data_crc == 1)
- seq_printf(s, ",no_chk_data_crc");
+ seq_puts(s, ",no_chk_data_crc");
if (c->mount_opts.override_compr) {
seq_printf(s, ",compr=%s",
static int init_constants_early(struct ubifs_info *c)
{
if (c->vi.corrupted) {
- ubifs_warn("UBI volume is corrupted - read-only mode");
+ ubifs_warn(c, "UBI volume is corrupted - read-only mode");
c->ro_media = 1;
}
if (c->di.ro_mode) {
- ubifs_msg("read-only UBI device");
+ ubifs_msg(c, "read-only UBI device");
c->ro_media = 1;
}
if (c->vi.vol_type == UBI_STATIC_VOLUME) {
- ubifs_msg("static UBI volume - read-only mode");
+ ubifs_msg(c, "static UBI volume - read-only mode");
c->ro_media = 1;
}
c->max_write_shift = fls(c->max_write_size) - 1;
if (c->leb_size < UBIFS_MIN_LEB_SZ) {
- ubifs_err("too small LEBs (%d bytes), min. is %d bytes",
+ ubifs_err(c, "too small LEBs (%d bytes), min. is %d bytes",
c->leb_size, UBIFS_MIN_LEB_SZ);
return -EINVAL;
}
if (c->leb_cnt < UBIFS_MIN_LEB_CNT) {
- ubifs_err("too few LEBs (%d), min. is %d",
+ ubifs_err(c, "too few LEBs (%d), min. is %d",
c->leb_cnt, UBIFS_MIN_LEB_CNT);
return -EINVAL;
}
if (!is_power_of_2(c->min_io_size)) {
- ubifs_err("bad min. I/O size %d", c->min_io_size);
+ ubifs_err(c, "bad min. I/O size %d", c->min_io_size);
return -EINVAL;
}
if (c->max_write_size < c->min_io_size ||
c->max_write_size % c->min_io_size ||
!is_power_of_2(c->max_write_size)) {
- ubifs_err("bad write buffer size %d for %d min. I/O unit",
+ ubifs_err(c, "bad write buffer size %d for %d min. I/O unit",
c->max_write_size, c->min_io_size);
return -EINVAL;
}
tmp = UBIFS_CS_NODE_SZ + UBIFS_REF_NODE_SZ * c->jhead_cnt;
tmp = ALIGN(tmp, c->min_io_size);
if (tmp > c->leb_size) {
- ubifs_err("too small LEB size %d, at least %d needed",
+ ubifs_err(c, "too small LEB size %d, at least %d needed",
c->leb_size, tmp);
return -EINVAL;
}
tmp /= c->leb_size;
tmp += 1;
if (c->log_lebs < tmp) {
- ubifs_err("too small log %d LEBs, required min. %d LEBs",
+ ubifs_err(c, "too small log %d LEBs, required min. %d LEBs",
c->log_lebs, tmp);
return -EINVAL;
}
int err;
if (c->gc_lnum == -1) {
- ubifs_err("no LEB for GC");
+ ubifs_err(c, "no LEB for GC");
return -EINVAL;
}
{
int i, err;
- c->jheads = kzalloc(c->jhead_cnt * sizeof(struct ubifs_jhead),
- GFP_KERNEL);
+ c->jheads = kcalloc(c->jhead_cnt, sizeof(struct ubifs_jhead),
+ GFP_KERNEL);
if (!c->jheads)
return -ENOMEM;
orph = list_entry(c->orph_list.next, struct ubifs_orphan, list);
list_del(&orph->list);
kfree(orph);
- ubifs_err("orphan list not empty at unmount");
+ ubifs_err(c, "orphan list not empty at unmount");
}
vfree(c->orph_buf);
c->orph_buf = NULL;
}
-#ifndef __UBOOT__
/**
* free_buds - free per-bud objects.
* @c: UBIFS file-system description object
rbtree_postorder_for_each_entry_safe(bud, n, &c->buds, rb)
kfree(bud);
}
-#endif
/**
* check_volume_empty - check if the UBI volume is empty.
*/
static int parse_standard_option(const char *option)
{
- ubifs_msg("parse %s", option);
+
+ pr_notice("UBIFS: parse %s\n", option);
if (!strcmp(option, "sync"))
return MS_SYNCHRONOUS;
return 0;
else if (!strcmp(name, "zlib"))
c->mount_opts.compr_type = UBIFS_COMPR_ZLIB;
else {
- ubifs_err("unknown compressor \"%s\"", name);
+ ubifs_err(c, "unknown compressor \"%s\"", name); //FIXME: is c ready?
kfree(name);
return -EINVAL;
}
flag = parse_standard_option(p);
if (!flag) {
- ubifs_err("unrecognized mount option \"%s\" or missing value",
+ ubifs_err(c, "unrecognized mount option \"%s\" or missing value",
p);
return -EINVAL;
}
return 0;
}
+#endif
/**
* destroy_journal - destroy journal data structures.
ubifs_tnc_close(c);
free_buds(c);
}
-#endif
/**
* bu_init - initialize bulk-read information.
}
/* Just disable bulk-read */
- ubifs_warn("cannot allocate %d bytes of memory for bulk-read, disabling it",
+ ubifs_warn(c, "cannot allocate %d bytes of memory for bulk-read, disabling it",
c->max_bu_buf_len);
c->mount_opts.bulk_read = 1;
c->bulk_read = 0;
{
ubifs_assert(c->dark_wm > 0);
if (c->lst.total_free + c->lst.total_dirty < c->dark_wm) {
- ubifs_err("insufficient free space to mount in R/W mode");
+ ubifs_err(c, "insufficient free space to mount in R/W mode");
ubifs_dump_budg(c, &c->bi);
ubifs_dump_lprops(c);
return -ENOSPC;
static int mount_ubifs(struct ubifs_info *c)
{
int err;
- long long x, y;
+ long long x;
+#ifndef CONFIG_UBIFS_SILENCE_MSG
+ long long y;
+#endif
size_t sz;
c->ro_mount = !!(c->vfs_sb->s_flags & MS_RDONLY);
+ /* Suppress error messages while probing if MS_SILENT is set */
+ c->probing = !!(c->vfs_sb->s_flags & MS_SILENT);
#ifdef __UBOOT__
if (!c->ro_mount) {
printf("UBIFS: only ro mode in U-Boot allowed.\n");
* This UBI volume is empty, and read-only, or the file system
* is mounted read-only - we cannot format it.
*/
- ubifs_err("can't format empty UBI volume: read-only %s",
+ ubifs_err(c, "can't format empty UBI volume: read-only %s",
c->ro_media ? "UBI volume" : "mount");
err = -EROFS;
goto out_free;
}
if (c->ro_media && !c->ro_mount) {
- ubifs_err("cannot mount read-write - read-only media");
+ ubifs_err(c, "cannot mount read-write - read-only media");
err = -EROFS;
goto out_free;
}
if (err)
goto out_free;
+ c->probing = 0;
+
/*
* Make sure the compressor which is set as default in the superblock
* or overridden by mount options is actually compiled in.
*/
if (!ubifs_compr_present(c->default_compr)) {
- ubifs_err("'compressor \"%s\" is not compiled in",
+ ubifs_err(c, "'compressor \"%s\" is not compiled in",
ubifs_compr_name(c->default_compr));
err = -ENOTSUPP;
goto out_free;
if (IS_ERR(c->bgt)) {
err = PTR_ERR(c->bgt);
c->bgt = NULL;
- ubifs_err("cannot spawn \"%s\", error %d",
+ ubifs_err(c, "cannot spawn \"%s\", error %d",
c->bgt_name, err);
goto out_wbufs;
}
init_constants_master(c);
if ((c->mst_node->flags & cpu_to_le32(UBIFS_MST_DIRTY)) != 0) {
- ubifs_msg("recovery needed");
+ ubifs_msg(c, "recovery needed");
c->need_recovery = 1;
}
goto out_lpt;
}
- if (!c->ro_mount) {
+ if (!c->ro_mount && !c->need_recovery) {
/*
* Set the "dirty" flag so that if we reboot uncleanly we
* will notice this immediately on the next mount.
if (err)
goto out_lpt;
-#ifndef __UBOOT__
err = ubifs_replay_journal(c);
if (err)
goto out_journal;
-#endif
/* Calculate 'min_idx_lebs' after journal replay */
c->bi.min_idx_lebs = ubifs_calc_min_idx_lebs(c);
if (c->need_recovery) {
if (c->ro_mount)
- ubifs_msg("recovery deferred");
+ ubifs_msg(c, "recovery deferred");
else {
c->need_recovery = 0;
- ubifs_msg("recovery completed");
+ ubifs_msg(c, "recovery completed");
/*
* GC LEB has to be empty and taken at this point. But
* the journal head LEBs may also be accounted as
c->mounting = 0;
- ubifs_msg("mounted UBI device %d, volume %d, name \"%s\"%s",
+ ubifs_msg(c, "UBIFS: mounted UBI device %d, volume %d, name \"%s\"%s",
c->vi.ubi_num, c->vi.vol_id, c->vi.name,
c->ro_mount ? ", R/O mode" : "");
x = (long long)c->main_lebs * c->leb_size;
+#ifndef CONFIG_UBIFS_SILENCE_MSG
y = (long long)c->log_lebs * c->leb_size + c->max_bud_bytes;
- ubifs_msg("LEB size: %d bytes (%d KiB), min./max. I/O unit sizes: %d bytes/%d bytes",
+#endif
+ ubifs_msg(c, "LEB size: %d bytes (%d KiB), min./max. I/O unit sizes: %d bytes/%d bytes",
c->leb_size, c->leb_size >> 10, c->min_io_size,
c->max_write_size);
- ubifs_msg("FS size: %lld bytes (%lld MiB, %d LEBs), journal size %lld bytes (%lld MiB, %d LEBs)",
+ ubifs_msg(c, "FS size: %lld bytes (%lld MiB, %d LEBs), journal size %lld bytes (%lld MiB, %d LEBs)",
x, x >> 20, c->main_lebs,
y, y >> 20, c->log_lebs + c->max_bud_cnt);
- ubifs_msg("reserved for root: %llu bytes (%llu KiB)",
+ ubifs_msg(c, "reserved for root: %llu bytes (%llu KiB)",
c->report_rp_size, c->report_rp_size >> 10);
- ubifs_msg("media format: w%d/r%d (latest is w%d/r%d), UUID %pUB%s",
+ ubifs_msg(c, "media format: w%d/r%d (latest is w%d/r%d), UUID %pUB%s",
c->fmt_version, c->ro_compat_version,
UBIFS_FORMAT_VERSION, UBIFS_RO_COMPAT_VERSION, c->uuid,
c->big_lpt ? ", big LPT model" : ", small LPT model");
spin_unlock(&ubifs_infos_lock);
out_orphans:
free_orphans(c);
-#ifndef __UBOOT__
out_journal:
destroy_journal(c);
-#endif
out_lpt:
ubifs_lpt_free(c, 0);
out_master:
int err, lnum;
if (c->rw_incompat) {
- ubifs_err("the file-system is not R/W-compatible");
- ubifs_msg("on-flash format version is w%d/r%d, but software only supports up to version w%d/r%d",
+ ubifs_err(c, "the file-system is not R/W-compatible");
+ ubifs_msg(c, "on-flash format version is w%d/r%d, but software only supports up to version w%d/r%d",
c->fmt_version, c->ro_compat_version,
UBIFS_FORMAT_VERSION, UBIFS_RO_COMPAT_VERSION);
return -EROFS;
}
if (c->need_recovery) {
- ubifs_msg("completing deferred recovery");
+ ubifs_msg(c, "completing deferred recovery");
err = ubifs_write_rcvrd_mst_node(c);
if (err)
goto out;
if (IS_ERR(c->bgt)) {
err = PTR_ERR(c->bgt);
c->bgt = NULL;
- ubifs_err("cannot spawn \"%s\", error %d",
+ ubifs_err(c, "cannot spawn \"%s\", error %d",
c->bgt_name, err);
goto out;
}
if (c->need_recovery) {
c->need_recovery = 0;
- ubifs_msg("deferred recovery completed");
+ ubifs_msg(c, "deferred recovery completed");
} else {
/*
* Do not run the debugging space check if the were doing
int i;
struct ubifs_info *c = sb->s_fs_info;
- ubifs_msg("un-mount UBI device %d, volume %d", c->vi.ubi_num,
- c->vi.vol_id);
+ ubifs_msg(c, "un-mount UBI device %d", c->vi.ubi_num);
/*
* The following asserts are only valid if there has not been a failure
* next mount, so we just print a message and
* continue to unmount normally.
*/
- ubifs_err("failed to write master node, error %d",
+ ubifs_err(c, "failed to write master node, error %d",
err);
} else {
#ifndef __UBOOT__
err = ubifs_parse_options(c, data, 1);
if (err) {
- ubifs_err("invalid or unknown remount parameter");
+ ubifs_err(c, "invalid or unknown remount parameter");
return err;
}
if (c->ro_mount && !(*flags & MS_RDONLY)) {
if (c->ro_error) {
- ubifs_msg("cannot re-mount R/W due to prior errors");
+ ubifs_msg(c, "cannot re-mount R/W due to prior errors");
return -EROFS;
}
if (c->ro_media) {
- ubifs_msg("cannot re-mount R/W - UBI volume is R/O");
+ ubifs_msg(c, "cannot re-mount R/W - UBI volume is R/O");
return -EROFS;
}
err = ubifs_remount_rw(c);
return err;
} else if (!c->ro_mount && (*flags & MS_RDONLY)) {
if (c->ro_error) {
- ubifs_msg("cannot re-mount R/O due to prior errors");
+ ubifs_msg(c, "cannot re-mount R/O due to prior errors");
return -EROFS;
}
ubifs_remount_ro(c);
mutex_init(&c->lp_mutex);
mutex_init(&c->tnc_mutex);
mutex_init(&c->log_mutex);
- mutex_init(&c->mst_mutex);
mutex_init(&c->umount_mutex);
mutex_init(&c->bu_mutex);
mutex_init(&c->write_reserve_mutex);
*
* Read-ahead will be disabled because @c->bdi.ra_pages is 0.
*/
- co>bdi.name = "ubifs",
- c->bdi.capabilities = BDI_CAP_MAP_COPY;
+ c->bdi.name = "ubifs",
+ c->bdi.capabilities = 0;
err = bdi_init(&c->bdi);
if (err)
goto out_close;
if (c->max_inode_sz > MAX_LFS_FILESIZE)
sb->s_maxbytes = c->max_inode_sz = MAX_LFS_FILESIZE;
sb->s_op = &ubifs_super_operations;
+#ifndef __UBOOT__
+ sb->s_xattr = ubifs_xattr_handlers;
+#endif
mutex_lock(&c->umount_mutex);
err = mount_ubifs(c);
return ERR_PTR(err);
}
+#ifndef __UBOOT__
INIT_HLIST_NODE(&s->s_instances);
+#endif
INIT_LIST_HEAD(&s->s_inodes);
s->s_time_gran = 1000000000;
s->s_flags = flags;
s->s_type = type;
#ifndef __UBOOT__
strlcpy(s->s_id, type->name, sizeof(s->s_id));
-#else
- strncpy(s->s_id, type->name, sizeof(s->s_id));
-#endif
list_add_tail(&s->s_list, &super_blocks);
hlist_add_head(&s->s_instances, &type->fs_supers);
-#ifndef __UBOOT__
spin_unlock(&sb_lock);
get_filesystem(type);
register_shrinker(&s->s_shrink);
+#else
+ strncpy(s->s_id, type->name, sizeof(s->s_id));
#endif
return s;
}
*/
ubi = open_ubi(name, UBI_READONLY);
if (IS_ERR(ubi)) {
- ubifs_err("cannot open \"%s\", error %d",
- name, (int)PTR_ERR(ubi));
+ pr_err("UBIFS error (pid: %d): cannot open \"%s\", error %d",
+ current->pid, name, (int)PTR_ERR(ubi));
return ERR_CAST(ubi);
}
* UBIFS_BLOCK_SIZE. It is assumed that both are powers of 2.
*/
if (PAGE_CACHE_SIZE < UBIFS_BLOCK_SIZE) {
- ubifs_err("VFS page cache size is %u bytes, but UBIFS requires at least 4096 bytes",
- (unsigned int)PAGE_CACHE_SIZE);
+ pr_err("UBIFS error (pid %d): VFS page cache size is %u bytes, but UBIFS requires at least 4096 bytes",
+ current->pid, (unsigned int)PAGE_CACHE_SIZE);
return -EINVAL;
}
if (!ubifs_inode_slab)
return -ENOMEM;
- register_shrinker(&ubifs_shrinker_info);
+ err = register_shrinker(&ubifs_shrinker_info);
+ if (err)
+ goto out_slab;
#endif
err = ubifs_compressors_init();
err = register_filesystem(&ubifs_fs_type);
if (err) {
- ubifs_err("cannot register file system, error %d", err);
+ pr_err("UBIFS error (pid %d): cannot register file system, error %d",
+ current->pid, err);
goto out_dbg;
}
#endif
out_shrinker:
#ifndef __UBOOT__
unregister_shrinker(&ubifs_shrinker_info);
+out_slab:
#endif
kmem_cache_destroy(ubifs_inode_slab);
return err;
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