ext2: Unify log messages in ext2
Alexey Fisher [Thu, 19 Nov 2009 18:12:51 +0000 (19:12 +0100)]
make messages produced by ext2 more unified. It should be
easy to parse.

dmesg before patch:
[ 4893.684892] reservations ON
[ 4893.684896] xip option not supported
[ 4893.684961] EXT2-fs warning: mounting ext3 filesystem as ext2
[ 4893.684964] EXT2-fs warning: maximal mount count reached, running
e2fsck is recommended
[ 4893.684990] EXT II FS: 0.5b, 95/08/09, bs=1024, fs=1024, gc=2,
bpg=8192, ipg=1280, mo=80010]

dmesg after patch:
[ 4893.684892] EXT2-fs (loop0): reservations ON
[ 4893.684896] EXT2-fs (loop0): xip option not supported
[ 4893.684961] EXT2-fs (loop0): warning: mounting ext3 filesystem as
ext2
[ 4893.684964] EXT2-fs (loop0): warning: maximal mount count reached,
running e2fsck is recommended
[ 4893.684990] EXT2-fs (loop0): 0.5b, 95/08/09, bs=1024, fs=1024, gc=2,
bpg=8192, ipg=1280, mo=80010]

Signed-off-by: Alexey Fisher <bug-track@fisher-privat.net>
Reviewed-by: Andreas Dilger <adilger@sun.com>
Signed-off-by: Jan Kara <jack@suse.cz>

fs/ext2/ext2.h
fs/ext2/inode.c
fs/ext2/super.c
fs/ext2/xip.c

index 9a8a8e2..da318b0 100644 (file)
@@ -142,7 +142,7 @@ struct dentry *ext2_get_parent(struct dentry *child);
 /* super.c */
 extern void ext2_error (struct super_block *, const char *, const char *, ...)
        __attribute__ ((format (printf, 3, 4)));
-extern void ext2_warning (struct super_block *, const char *, const char *, ...)
+extern void ext2_msg(struct super_block *, const char *, const char *, ...)
        __attribute__ ((format (printf, 3, 4)));
 extern void ext2_update_dynamic_rev (struct super_block *sb);
 extern void ext2_write_super (struct super_block *);
index ade6340..71b032c 100644 (file)
@@ -137,7 +137,8 @@ static int ext2_block_to_path(struct inode *inode,
        int final = 0;
 
        if (i_block < 0) {
-               ext2_warning (inode->i_sb, "ext2_block_to_path", "block < 0");
+               ext2_msg(inode->i_sb, KERN_WARNING,
+                       "warning: %s: block < 0", __func__);
        } else if (i_block < direct_blocks) {
                offsets[n++] = i_block;
                final = direct_blocks;
@@ -157,7 +158,8 @@ static int ext2_block_to_path(struct inode *inode,
                offsets[n++] = i_block & (ptrs - 1);
                final = ptrs;
        } else {
-               ext2_warning (inode->i_sb, "ext2_block_to_path", "block > big");
+               ext2_msg(inode->i_sb, KERN_WARNING,
+                       "warning: %s: block is too big", __func__);
        }
        if (boundary)
                *boundary = final - 1 - (i_block & (ptrs - 1));
index 1a9ffee..0faf770 100644 (file)
@@ -58,27 +58,27 @@ void ext2_error (struct super_block * sb, const char * function,
        }
 
        va_start(args, fmt);
-       printk(KERN_CRIT "EXT2-fs error (device %s): %s: ",sb->s_id, function);
+       printk(KERN_CRIT "EXT2-fs (%s): error: %s: ", sb->s_id, function);
        vprintk(fmt, args);
        printk("\n");
        va_end(args);
 
        if (test_opt(sb, ERRORS_PANIC))
-               panic("EXT2-fs panic from previous error\n");
+               panic("EXT2-fs: panic from previous error\n");
        if (test_opt(sb, ERRORS_RO)) {
-               printk("Remounting filesystem read-only\n");
+               ext2_msg(sb, KERN_CRIT,
+                            "error: remounting filesystem read-only");
                sb->s_flags |= MS_RDONLY;
        }
 }
 
-void ext2_warning (struct super_block * sb, const char * function,
-                  const char * fmt, ...)
+void ext2_msg(struct super_block *sb, const char *prefix,
+               const char *fmt, ...)
 {
        va_list args;
 
        va_start(args, fmt);
-       printk(KERN_WARNING "EXT2-fs warning (device %s): %s: ",
-              sb->s_id, function);
+       printk("%sEXT2-fs (%s): ", prefix, sb->s_id);
        vprintk(fmt, args);
        printk("\n");
        va_end(args);
@@ -91,9 +91,9 @@ void ext2_update_dynamic_rev(struct super_block *sb)
        if (le32_to_cpu(es->s_rev_level) > EXT2_GOOD_OLD_REV)
                return;
 
-       ext2_warning(sb, __func__,
-                    "updating to rev %d because of new feature flag, "
-                    "running e2fsck is recommended",
+       ext2_msg(sb, KERN_WARNING,
+                    "warning: updating to rev %d because of "
+                    "new feature flag, running e2fsck is recommended",
                     EXT2_DYNAMIC_REV);
 
        es->s_first_ino = cpu_to_le32(EXT2_GOOD_OLD_FIRST_INO);
@@ -419,10 +419,10 @@ static const match_table_t tokens = {
        {Opt_err, NULL}
 };
 
-static int parse_options (char * options,
-                         struct ext2_sb_info *sbi)
+static int parse_options(char *options, struct super_block *sb)
 {
-       char * p;
+       char *p;
+       struct ext2_sb_info *sbi = EXT2_SB(sb);
        substring_t args[MAX_OPT_ARGS];
        int option;
 
@@ -505,7 +505,8 @@ static int parse_options (char * options,
 #else
                case Opt_user_xattr:
                case Opt_nouser_xattr:
-                       printk("EXT2 (no)user_xattr options not supported\n");
+                       ext2_msg(sb, KERN_INFO, "(no)user_xattr options"
+                               "not supported");
                        break;
 #endif
 #ifdef CONFIG_EXT2_FS_POSIX_ACL
@@ -518,14 +519,15 @@ static int parse_options (char * options,
 #else
                case Opt_acl:
                case Opt_noacl:
-                       printk("EXT2 (no)acl options not supported\n");
+                       ext2_msg(sb, KERN_INFO,
+                               "(no)acl options not supported");
                        break;
 #endif
                case Opt_xip:
 #ifdef CONFIG_EXT2_FS_XIP
                        set_opt (sbi->s_mount_opt, XIP);
 #else
-                       printk("EXT2 xip option not supported\n");
+                       ext2_msg(sb, KERN_INFO, "xip option not supported");
 #endif
                        break;
 
@@ -542,19 +544,18 @@ static int parse_options (char * options,
                case Opt_quota:
                case Opt_usrquota:
                case Opt_grpquota:
-                       printk(KERN_ERR
-                               "EXT2-fs: quota operations not supported.\n");
-
+                       ext2_msg(sb, KERN_INFO,
+                               "quota operations not supported");
                        break;
 #endif
 
                case Opt_reservation:
                        set_opt(sbi->s_mount_opt, RESERVATION);
-                       printk("reservations ON\n");
+                       ext2_msg(sb, KERN_INFO, "reservations ON");
                        break;
                case Opt_noreservation:
                        clear_opt(sbi->s_mount_opt, RESERVATION);
-                       printk("reservations OFF\n");
+                       ext2_msg(sb, KERN_INFO, "reservations OFF");
                        break;
                case Opt_ignore:
                        break;
@@ -573,34 +574,40 @@ static int ext2_setup_super (struct super_block * sb,
        struct ext2_sb_info *sbi = EXT2_SB(sb);
 
        if (le32_to_cpu(es->s_rev_level) > EXT2_MAX_SUPP_REV) {
-               printk ("EXT2-fs warning: revision level too high, "
-                       "forcing read-only mode\n");
+               ext2_msg(sb, KERN_ERR,
+                       "error: revision level too high, "
+                       "forcing read-only mode");
                res = MS_RDONLY;
        }
        if (read_only)
                return res;
        if (!(sbi->s_mount_state & EXT2_VALID_FS))
-               printk ("EXT2-fs warning: mounting unchecked fs, "
-                       "running e2fsck is recommended\n");
+               ext2_msg(sb, KERN_WARNING,
+                       "warning: mounting unchecked fs, "
+                       "running e2fsck is recommended");
        else if ((sbi->s_mount_state & EXT2_ERROR_FS))
-               printk ("EXT2-fs warning: mounting fs with errors, "
-                       "running e2fsck is recommended\n");
+               ext2_msg(sb, KERN_WARNING,
+                       "warning: mounting fs with errors, "
+                       "running e2fsck is recommended");
        else if ((__s16) le16_to_cpu(es->s_max_mnt_count) >= 0 &&
                 le16_to_cpu(es->s_mnt_count) >=
                 (unsigned short) (__s16) le16_to_cpu(es->s_max_mnt_count))
-               printk ("EXT2-fs warning: maximal mount count reached, "
-                       "running e2fsck is recommended\n");
+               ext2_msg(sb, KERN_WARNING,
+                       "warning: maximal mount count reached, "
+                       "running e2fsck is recommended");
        else if (le32_to_cpu(es->s_checkinterval) &&
-               (le32_to_cpu(es->s_lastcheck) + le32_to_cpu(es->s_checkinterval) <= get_seconds()))
-               printk ("EXT2-fs warning: checktime reached, "
-                       "running e2fsck is recommended\n");
+               (le32_to_cpu(es->s_lastcheck) +
+                       le32_to_cpu(es->s_checkinterval) <= get_seconds()))
+               ext2_msg(sb, KERN_WARNING,
+                       "warning: checktime reached, "
+                       "running e2fsck is recommended");
        if (!le16_to_cpu(es->s_max_mnt_count))
                es->s_max_mnt_count = cpu_to_le16(EXT2_DFL_MAX_MNT_COUNT);
        le16_add_cpu(&es->s_mnt_count, 1);
        ext2_write_super(sb);
        if (test_opt (sb, DEBUG))
-               printk ("[EXT II FS %s, %s, bs=%lu, fs=%lu, gc=%lu, "
-                       "bpg=%lu, ipg=%lu, mo=%04lx]\n",
+               ext2_msg(sb, KERN_INFO, "%s, %s, bs=%lu, fs=%lu, gc=%lu, "
+                       "bpg=%lu, ipg=%lu, mo=%04lx]",
                        EXT2FS_VERSION, EXT2FS_DATE, sb->s_blocksize,
                        sbi->s_frag_size,
                        sbi->s_groups_count,
@@ -767,7 +774,7 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent)
         */
        blocksize = sb_min_blocksize(sb, BLOCK_SIZE);
        if (!blocksize) {
-               printk ("EXT2-fs: unable to set blocksize\n");
+               ext2_msg(sb, KERN_ERR, "error: unable to set blocksize");
                goto failed_sbi;
        }
 
@@ -783,7 +790,7 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent)
        }
 
        if (!(bh = sb_bread(sb, logic_sb_block))) {
-               printk ("EXT2-fs: unable to read superblock\n");
+               ext2_msg(sb, KERN_ERR, "error: unable to read superblock");
                goto failed_sbi;
        }
        /*
@@ -826,7 +833,7 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent)
        
        set_opt(sbi->s_mount_opt, RESERVATION);
 
-       if (!parse_options ((char *) data, sbi))
+       if (!parse_options((char *) data, sb))
                goto failed_mount;
 
        sb->s_flags = (sb->s_flags & ~MS_POSIXACL) |
@@ -840,8 +847,9 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent)
            (EXT2_HAS_COMPAT_FEATURE(sb, ~0U) ||
             EXT2_HAS_RO_COMPAT_FEATURE(sb, ~0U) ||
             EXT2_HAS_INCOMPAT_FEATURE(sb, ~0U)))
-               printk("EXT2-fs warning: feature flags set on rev 0 fs, "
-                      "running e2fsck is recommended\n");
+               ext2_msg(sb, KERN_WARNING,
+                       "warning: feature flags set on rev 0 fs, "
+                       "running e2fsck is recommended");
        /*
         * Check feature flags regardless of the revision level, since we
         * previously didn't change the revision level when setting the flags,
@@ -849,16 +857,16 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent)
         */
        features = EXT2_HAS_INCOMPAT_FEATURE(sb, ~EXT2_FEATURE_INCOMPAT_SUPP);
        if (features) {
-               printk("EXT2-fs: %s: couldn't mount because of "
-                      "unsupported optional features (%x).\n",
-                      sb->s_id, le32_to_cpu(features));
+               ext2_msg(sb, KERN_ERR,  "error: couldn't mount because of "
+                      "unsupported optional features (%x)",
+                       le32_to_cpu(features));
                goto failed_mount;
        }
        if (!(sb->s_flags & MS_RDONLY) &&
            (features = EXT2_HAS_RO_COMPAT_FEATURE(sb, ~EXT2_FEATURE_RO_COMPAT_SUPP))){
-               printk("EXT2-fs: %s: couldn't mount RDWR because of "
-                      "unsupported optional features (%x).\n",
-                      sb->s_id, le32_to_cpu(features));
+               ext2_msg(sb, KERN_ERR, "error: couldn't mount RDWR because of "
+                      "unsupported optional features (%x)",
+                      le32_to_cpu(features));
                goto failed_mount;
        }
 
@@ -866,7 +874,8 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent)
 
        if (ext2_use_xip(sb) && blocksize != PAGE_SIZE) {
                if (!silent)
-                       printk("XIP: Unsupported blocksize\n");
+                       ext2_msg(sb, KERN_ERR,
+                               "error: unsupported blocksize for xip");
                goto failed_mount;
        }
 
@@ -875,7 +884,7 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent)
                brelse(bh);
 
                if (!sb_set_blocksize(sb, blocksize)) {
-                       printk(KERN_ERR "EXT2-fs: blocksize too small for device.\n");
+                       ext2_msg(sb, KERN_ERR, "error: blocksize is too small");
                        goto failed_sbi;
                }
 
@@ -883,14 +892,14 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent)
                offset = (sb_block*BLOCK_SIZE) % blocksize;
                bh = sb_bread(sb, logic_sb_block);
                if(!bh) {
-                       printk("EXT2-fs: Couldn't read superblock on "
-                              "2nd try.\n");
+                       ext2_msg(sb, KERN_ERR, "error: couldn't read"
+                               "superblock on 2nd try");
                        goto failed_sbi;
                }
                es = (struct ext2_super_block *) (((char *)bh->b_data) + offset);
                sbi->s_es = es;
                if (es->s_magic != cpu_to_le16(EXT2_SUPER_MAGIC)) {
-                       printk ("EXT2-fs: Magic mismatch, very weird !\n");
+                       ext2_msg(sb, KERN_ERR, "error: magic mismatch");
                        goto failed_mount;
                }
        }
@@ -906,7 +915,8 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent)
                if ((sbi->s_inode_size < EXT2_GOOD_OLD_INODE_SIZE) ||
                    !is_power_of_2(sbi->s_inode_size) ||
                    (sbi->s_inode_size > blocksize)) {
-                       printk ("EXT2-fs: unsupported inode size: %d\n",
+                       ext2_msg(sb, KERN_ERR,
+                               "error: unsupported inode size: %d",
                                sbi->s_inode_size);
                        goto failed_mount;
                }
@@ -943,29 +953,33 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent)
 
        if (sb->s_blocksize != bh->b_size) {
                if (!silent)
-                       printk ("VFS: Unsupported blocksize on dev "
-                               "%s.\n", sb->s_id);
+                       ext2_msg(sb, KERN_ERR, "error: unsupported blocksize");
                goto failed_mount;
        }
 
        if (sb->s_blocksize != sbi->s_frag_size) {
-               printk ("EXT2-fs: fragsize %lu != blocksize %lu (not supported yet)\n",
+               ext2_msg(sb, KERN_ERR,
+                       "error: fragsize %lu != blocksize %lu"
+                       "(not supported yet)",
                        sbi->s_frag_size, sb->s_blocksize);
                goto failed_mount;
        }
 
        if (sbi->s_blocks_per_group > sb->s_blocksize * 8) {
-               printk ("EXT2-fs: #blocks per group too big: %lu\n",
+               ext2_msg(sb, KERN_ERR,
+                       "error: #blocks per group too big: %lu",
                        sbi->s_blocks_per_group);
                goto failed_mount;
        }
        if (sbi->s_frags_per_group > sb->s_blocksize * 8) {
-               printk ("EXT2-fs: #fragments per group too big: %lu\n",
+               ext2_msg(sb, KERN_ERR,
+                       "error: #fragments per group too big: %lu",
                        sbi->s_frags_per_group);
                goto failed_mount;
        }
        if (sbi->s_inodes_per_group > sb->s_blocksize * 8) {
-               printk ("EXT2-fs: #inodes per group too big: %lu\n",
+               ext2_msg(sb, KERN_ERR,
+                       "error: #inodes per group too big: %lu",
                        sbi->s_inodes_per_group);
                goto failed_mount;
        }
@@ -979,13 +993,13 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent)
                   EXT2_DESC_PER_BLOCK(sb);
        sbi->s_group_desc = kmalloc (db_count * sizeof (struct buffer_head *), GFP_KERNEL);
        if (sbi->s_group_desc == NULL) {
-               printk ("EXT2-fs: not enough memory\n");
+               ext2_msg(sb, KERN_ERR, "error: not enough memory");
                goto failed_mount;
        }
        bgl_lock_init(sbi->s_blockgroup_lock);
        sbi->s_debts = kcalloc(sbi->s_groups_count, sizeof(*sbi->s_debts), GFP_KERNEL);
        if (!sbi->s_debts) {
-               printk ("EXT2-fs: not enough memory\n");
+               ext2_msg(sb, KERN_ERR, "error: not enough memory");
                goto failed_mount_group_desc;
        }
        for (i = 0; i < db_count; i++) {
@@ -994,12 +1008,13 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent)
                if (!sbi->s_group_desc[i]) {
                        for (j = 0; j < i; j++)
                                brelse (sbi->s_group_desc[j]);
-                       printk ("EXT2-fs: unable to read group descriptors\n");
+                       ext2_msg(sb, KERN_ERR,
+                               "error: unable to read group descriptors");
                        goto failed_mount_group_desc;
                }
        }
        if (!ext2_check_descriptors (sb)) {
-               printk ("EXT2-fs: group descriptors corrupted!\n");
+               ext2_msg(sb, KERN_ERR, "group descriptors corrupted");
                goto failed_mount2;
        }
        sbi->s_gdb_count = db_count;
@@ -1032,7 +1047,7 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent)
                                ext2_count_dirs(sb));
        }
        if (err) {
-               printk(KERN_ERR "EXT2-fs: insufficient memory\n");
+               ext2_msg(sb, KERN_ERR, "error: insufficient memory");
                goto failed_mount3;
        }
        /*
@@ -1048,27 +1063,28 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent)
        }
        if (!S_ISDIR(root->i_mode) || !root->i_blocks || !root->i_size) {
                iput(root);
-               printk(KERN_ERR "EXT2-fs: corrupt root inode, run e2fsck\n");
+               ext2_msg(sb, KERN_ERR, "error: corrupt root inode, run e2fsck");
                goto failed_mount3;
        }
 
        sb->s_root = d_alloc_root(root);
        if (!sb->s_root) {
                iput(root);
-               printk(KERN_ERR "EXT2-fs: get root inode failed\n");
+               ext2_msg(sb, KERN_ERR, "error: get root inode failed");
                ret = -ENOMEM;
                goto failed_mount3;
        }
        if (EXT2_HAS_COMPAT_FEATURE(sb, EXT3_FEATURE_COMPAT_HAS_JOURNAL))
-               ext2_warning(sb, __func__,
-                       "mounting ext3 filesystem as ext2");
+               ext2_msg(sb, KERN_WARNING,
+                       "warning: mounting ext3 filesystem as ext2");
        ext2_setup_super (sb, es, sb->s_flags & MS_RDONLY);
        return 0;
 
 cantfind_ext2:
        if (!silent)
-               printk("VFS: Can't find an ext2 filesystem on dev %s.\n",
-                      sb->s_id);
+               ext2_msg(sb, KERN_ERR,
+                       "error: can't find an ext2 filesystem on dev %s.",
+                       sb->s_id);
        goto failed_mount;
 failed_mount3:
        percpu_counter_destroy(&sbi->s_freeblocks_counter);
@@ -1170,7 +1186,7 @@ static int ext2_remount (struct super_block * sb, int * flags, char * data)
        /*
         * Allow the "check" option to be passed as a remount option.
         */
-       if (!parse_options (data, sbi)) {
+       if (!parse_options(data, sb)) {
                err = -EINVAL;
                goto restore_opts;
        }
@@ -1182,7 +1198,8 @@ static int ext2_remount (struct super_block * sb, int * flags, char * data)
                                    EXT2_MOUNT_XIP if not */
 
        if ((ext2_use_xip(sb)) && (sb->s_blocksize != PAGE_SIZE)) {
-               printk("XIP: Unsupported blocksize\n");
+               ext2_msg(sb, KERN_WARNING,
+                       "warning: unsupported blocksize for xip");
                err = -EINVAL;
                goto restore_opts;
        }
@@ -1191,8 +1208,8 @@ static int ext2_remount (struct super_block * sb, int * flags, char * data)
        if (((sbi->s_mount_opt & EXT2_MOUNT_XIP) !=
            (old_mount_opt & EXT2_MOUNT_XIP)) &&
            invalidate_inodes(sb)) {
-               ext2_warning(sb, __func__, "refusing change of xip flag "
-                            "with busy inodes while remounting");
+               ext2_msg(sb, KERN_WARNING, "warning: refusing change of "
+                        "xip flag with busy inodes while remounting");
                sbi->s_mount_opt &= ~EXT2_MOUNT_XIP;
                sbi->s_mount_opt |= old_mount_opt & EXT2_MOUNT_XIP;
        }
@@ -1216,9 +1233,10 @@ static int ext2_remount (struct super_block * sb, int * flags, char * data)
                __le32 ret = EXT2_HAS_RO_COMPAT_FEATURE(sb,
                                               ~EXT2_FEATURE_RO_COMPAT_SUPP);
                if (ret) {
-                       printk("EXT2-fs: %s: couldn't remount RDWR because of "
-                              "unsupported optional features (%x).\n",
-                              sb->s_id, le32_to_cpu(ret));
+                       ext2_msg(sb, KERN_WARNING,
+                               "warning: couldn't remount RDWR because of "
+                               "unsupported optional features (%x).",
+                               le32_to_cpu(ret));
                        err = -EROFS;
                        goto restore_opts;
                }
index c18fbf3..322a56b 100644 (file)
@@ -69,8 +69,9 @@ void ext2_xip_verify_sb(struct super_block *sb)
        if ((sbi->s_mount_opt & EXT2_MOUNT_XIP) &&
            !sb->s_bdev->bd_disk->fops->direct_access) {
                sbi->s_mount_opt &= (~EXT2_MOUNT_XIP);
-               ext2_warning(sb, __func__,
-                            "ignoring xip option - not supported by bdev");
+               ext2_msg(sb, KERN_WARNING,
+                            "warning: ignoring xip option - "
+                            "not supported by bdev");
        }
 }