Signed-off-by: Jeff Layton <jlay...@redhat.com> --- include/linux/pagemap.h | 14 ++++++++++++++ 1 file changed, 14 insertions(+)
diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h index 9593eac41499..9b453eae0aa1 100644 --- a/include/linux/pagemap.h +++ b/include/linux/pagemap.h @@ -27,6 +27,20 @@ enum mapping_flags { AS_NO_WRITEBACK_TAGS = 3, }; +/** + * mapping_set_error - record a writeback error in the address_space + * @mapping - the mapping in which an error should be set + * @error - the error to set in the mapping + * + * When writeback fails in some way, we must record that error so that + * userspace can be informed when fsync and the like are called. We endeavor + * to report errors on any file that was open at the time of the error. Some + * internal callers also need to know when writeback errors have occurred. + * + * When a writeback error occurs, most will filesystems will want to call + * mapping_set_error to record the error in the mapping so that it will be + * automatically reported whenever fsync is called on the file. + */ static inline void mapping_set_error(struct address_space *mapping, int error) { return errseq_set(&mapping->wb_err, error); -- 2.9.3 ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Jfs-discussion mailing list Jfs-discussion@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jfs-discussion