Re: [PATCH v9 29/31] ext4: Send notifications on error

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Mon, Oct 25, 2021 at 10:31 PM Gabriel Krisman Bertazi
<krisman@xxxxxxxxxxxxx> wrote:
>
> Send a FS_ERROR message via fsnotify to a userspace monitoring tool
> whenever a ext4 error condition is triggered.  This follows the existing
> error conditions in ext4, so it is hooked to the ext4_error* functions.
>
> Signed-off-by: Gabriel Krisman Bertazi <krisman@xxxxxxxxxxxxx>
>
Reviewed-by: Amir Goldstein <amir73il@xxxxxxxxx>

> ---
> Changes since v8:
>   - Report always report non-zero errno (Jan, Amir, Ted)
> Changes since v6:
>   - Report ext4_std_errors agains superblock (jan)
> ---
>  fs/ext4/super.c | 8 ++++++++
>  1 file changed, 8 insertions(+)
>
> diff --git a/fs/ext4/super.c b/fs/ext4/super.c
> index 88d5d274a868..1a766c68a55e 100644
> --- a/fs/ext4/super.c
> +++ b/fs/ext4/super.c
> @@ -46,6 +46,7 @@
>  #include <linux/part_stat.h>
>  #include <linux/kthread.h>
>  #include <linux/freezer.h>
> +#include <linux/fsnotify.h>
>
>  #include "ext4.h"
>  #include "ext4_extents.h"      /* Needed for trace points definition */
> @@ -759,6 +760,8 @@ void __ext4_error(struct super_block *sb, const char *function,
>                        sb->s_id, function, line, current->comm, &vaf);
>                 va_end(args);
>         }
> +       fsnotify_sb_error(sb, NULL, error ? error : EFSCORRUPTED);
> +
>         ext4_handle_error(sb, force_ro, error, 0, block, function, line);
>  }
>
> @@ -789,6 +792,8 @@ void __ext4_error_inode(struct inode *inode, const char *function,
>                                current->comm, &vaf);
>                 va_end(args);
>         }
> +       fsnotify_sb_error(inode->i_sb, inode, error ? error : EFSCORRUPTED);
> +
>         ext4_handle_error(inode->i_sb, false, error, inode->i_ino, block,
>                           function, line);
>  }
> @@ -827,6 +832,8 @@ void __ext4_error_file(struct file *file, const char *function,
>                                current->comm, path, &vaf);
>                 va_end(args);
>         }
> +       fsnotify_sb_error(inode->i_sb, inode, EFSCORRUPTED);
> +
>         ext4_handle_error(inode->i_sb, false, EFSCORRUPTED, inode->i_ino, block,
>                           function, line);
>  }
> @@ -894,6 +901,7 @@ void __ext4_std_error(struct super_block *sb, const char *function,
>                 printk(KERN_CRIT "EXT4-fs error (device %s) in %s:%d: %s\n",
>                        sb->s_id, function, line, errstr);
>         }
> +       fsnotify_sb_error(sb, NULL, errno ? errno : EFSCORRUPTED);
>
>         ext4_handle_error(sb, false, -errno, 0, 0, function, line);
>  }
> --
> 2.33.0
>



[Index of Archives]     [Linux Ext4 Filesystem]     [Union Filesystem]     [Filesystem Testing]     [Ceph Users]     [Ecryptfs]     [NTFS 3]     [AutoFS]     [Kernel Newbies]     [Share Photos]     [Security]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux Cachefs]     [Reiser Filesystem]     [Linux RAID]     [NTFS 3]     [Samba]     [Device Mapper]     [CEPH Development]

  Powered by Linux