fs/btrfs/messages.c

14  * Characters to print to indicate error conditions or uncommon filesystem state.
15  * RO is not an error.
59  * Generally the error codes correspond to their respective errors, but there
67  * EROFS: If we check BTRFS_FS_STATE_ERROR and fail out with a return error, we
70  *        over the error.  Each subsequent error that doesn't have any context
71  *        of the original error should use EROFS when handling BTRFS_FS_STATE_ERROR.
73 const char * __attribute_const__ btrfs_decode_error(int error)
77 	switch (error) {
111  * Decodes expected errors from the caller and invokes the appropriate error
116 		       unsigned int line, int error, const char *fmt, ...)
126 		"BTRFS: error (device %s%s) in %s:%d: errno=%d %s", KERN_CRIT, fmt);
130 	 * Special case: if the error is EROFS, and we're already under
133 	if (error == -EROFS && sb_rdonly(sb))
137 	errstr = btrfs_decode_error(error);
147 		pr_crit("BTRFS: error (device %s%s) in %s:%d: errno=%d %s (%pV)\n",
148 			sb->s_id, statestr, function, line, error, errstr, &vaf);
151 		pr_crit("BTRFS: error (device %s%s) in %s:%d: errno=%d %s\n",
152 			sb->s_id, statestr, function, line, error, errstr);
157 	 * Today we only save the error info to memory.  Long term we'll also
160 	WRITE_ONCE(fs_info->fs_error, error);
162 	/* Don't go through full error handling during mount. */
171 	/* Handle error by forcing the filesystem readonly. */
189 	"error",
289 		   unsigned int line, int error, const char *fmt, ...)
302 	errstr = btrfs_decode_error(error);
305 			s_id, function, line, &vaf, error, errstr);
308 		   function, line, &vaf, error, errstr);