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List: reiserfs-devel
Subject: [PATCH] reiser4: Change default behavior on IO errors
From: Edward Shishkin <edward.shishkin () gmail ! com>
Date: 2015-08-26 8:59:35
Message-ID: 55DD7FF7.8010401 () gmail ! com
[Download RAW message or body]
["reiser4-change-default-behavior-on-error.patch" (text/x-patch)]
Change default behavior on IO errors to "remount readonly";
Improve compatibility warnings.
Signed-off-by: Edward Shishkin <edward.shishkin@gmail.com>
---
fs/reiser4/init_super.c | 2 -
fs/reiser4/plugin/disk_format/disk_format40.c | 31 +++++++++++++++-----------
2 files changed, 19 insertions(+), 14 deletions(-)
--- a/fs/reiser4/init_super.c
+++ b/fs/reiser4/init_super.c
@@ -533,7 +533,7 @@ int reiser4_init_super_data(struct super
.oneof = {
.result = &sbinfo->onerror,
.list = {
- "panic", "remount-ro", NULL
+ "remount-ro", "panic", NULL
},
}
}
--- a/fs/reiser4/plugin/disk_format/disk_format40.c
+++ b/fs/reiser4/plugin/disk_format/disk_format40.c
@@ -91,12 +91,12 @@ static int update_backup_version(const f
static int update_disk_version_minor(const format40_disk_super_block * sb)
{
- return (get_format40_version(sb) < PLUGIN_LIBRARY_VERSION);
+ return (get_format40_version(sb) < get_release_number_minor());
}
static int incomplete_compatibility(const format40_disk_super_block * sb)
{
- return (get_format40_version(sb) > PLUGIN_LIBRARY_VERSION);
+ return (get_format40_version(sb) > get_release_number_minor());
}
static format40_super_info *get_sb_info(struct super_block *super)
@@ -321,10 +321,14 @@ static int try_init_format40(struct supe
super->s_id,
get_format40_version(sb_copy));
if (incomplete_compatibility(sb_copy))
- printk("reiser4: Warning: The last completely supported "
- "version of disk format40 is %u. Some objects of "
- "the semantic tree can be unaccessible.\n",
- PLUGIN_LIBRARY_VERSION);
+ printk("reiser4 (%s): format version number (4.0.%u) is "
+ "greater than release number (4.%u.%u) of reiser4 "
+ "kernel module. Some objects of the volume can be "
+ "inaccessible.\n",
+ super->s_id,
+ get_format40_version(sb_copy),
+ get_release_number_major(),
+ get_release_number_minor());
/* make sure that key format of kernel and filesystem match */
result = check_key_format(sb_copy);
if (result) {
@@ -371,9 +375,8 @@ static int try_init_format40(struct supe
kfree(sb_copy);
if (update_backup_version(sb_copy))
- printk("reiser4: Warning: metadata backup is not updated. "
- "Please run 'fsck.reiser4 --fix' on %s.\n",
- super->s_id);
+ printk("reiser4 (%s): use 'fsck.reiser4 --fix' "
+ "to complete disk format upgrade.\n", super->s_id);
sbinfo->fsuid = 0;
sbinfo->fs_flags |= (1 << REISER4_ADG); /* hard links for directories
@@ -617,12 +620,14 @@ int version_update_format40(struct super
if (super->s_flags & MS_RDONLY)
return 0;
- if (get_super_private(super)->version >= PLUGIN_LIBRARY_VERSION)
+ if (get_super_private(super)->version >= get_release_number_minor())
return 0;
- printk("reiser4: Updating disk format to 4.0.%u. The reiser4 metadata "
- "backup is left unchanged. Please run 'fsck.reiser4 --fix' "
- "on %s to update it too.\n", PLUGIN_LIBRARY_VERSION, super->s_id);
+ printk("reiser4 (%s): upgrading disk format to 4.0.%u.\n",
+ super->s_id,
+ get_release_number_minor());
+ printk("reiser4 (%s): use 'fsck.reiser4 --fix' "
+ "to complete disk format upgrade.\n", super->s_id);
/* Mark the uber znode dirty to call log_super on write_logs. */
init_lh(&lh);
--
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