On Wed 18-03-15 10:44:11, Rik van Riel wrote: > On 03/18/2015 10:09 AM, Michal Hocko wrote: > > page_cache_read has been historically using page_cache_alloc_cold to > > allocate a new page. This means that mapping_gfp_mask is used as the > > base for the gfp_mask. Many filesystems are setting this mask to > > GFP_NOFS to prevent from fs recursion issues. page_cache_read is, > > however, not called from the fs layer > > Is that true for filesystems that have directories in > the page cache?
I haven't found any explicit callers of filemap_fault except for ocfs2 and ceph and those seem OK to me. Which filesystems you have in mind? Btw. how would that work as we already have GFP_KERNEL allocation few lines below? -- Michal Hocko SUSE Labs -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
