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authorGabriel Krisman Bertazi <krisman@collabora.com>2021-10-25 16:27:44 -0300
committerJan Kara <jack@suse.cz>2021-10-27 12:53:46 +0200
commit9a089b21f79b47eed240d4da7ea0d049de7c9b4d (patch)
tree6c035c151929153fbb4f8701156a64bcc12f2b70 /fs/ext4
parent9709bd548f11a092d124698118013f66e1740f9b (diff)
ext4: Send notifications on error
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. Link: https://lore.kernel.org/r/20211025192746.66445-30-krisman@collabora.com Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.com> Acked-by: Theodore Ts'o <tytso@mit.edu> Reviewed-by: Amir Goldstein <amir73il@gmail.com> Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'fs/ext4')
-rw-r--r--fs/ext4/super.c8
1 files changed, 8 insertions, 0 deletions
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);
}