From: Christoph Hellwig <hch@infradead.org> To: Jeff Layton <jlayton@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org>, Al Viro <viro@ZenIV.linux.org.uk>, Jan Kara <jack@suse.cz>, tytso@mit.edu, axboe@kernel.dk, mawilcox@microsoft.com, ross.zwisler@linux.intel.com, corbet@lwn.net, Chris Mason <clm@fb.com>, Josef Bacik <jbacik@fb.com>, David Sterba <dsterba@suse.com>, "Darrick J . Wong" <darrick.wong@oracle.com>, Carlos Maiolino <cmaiolino@redhat.com>, Eryu Guan <eguan@redhat.com>, David Howells <dhowells@redhat.com>, Christoph Hellwig <hch@infradead.org>, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-ext4@vger.kernel.org, linux-xfs@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-block@vger.kernel.org Subject: Re: [PATCH v7 11/22] fs: new infrastructure for writeback error handling and reporting Date: Tue, 20 Jun 2017 05:34:33 -0700 [thread overview] Message-ID: <20170620123433.GB19781@infradead.org> (raw) In-Reply-To: <20170616193427.13955-12-jlayton@redhat.com> > @@ -393,6 +394,7 @@ struct address_space { > gfp_t gfp_mask; /* implicit gfp mask for allocations */ > struct list_head private_list; /* ditto */ > void *private_data; /* ditto */ > + errseq_t wb_err; > } __attribute__((aligned(sizeof(long)))); > /* > * On most architectures that alignment is already the case; but > @@ -847,6 +849,7 @@ struct file { > * Must not be taken from IRQ context. > */ > spinlock_t f_lock; > + errseq_t f_wb_err; > atomic_long_t f_count; > unsigned int f_flags; > fmode_t f_mode; Did you check the sizes of the structure before and after? These places don't look like holes in the packing, but there probably are some available. > +static inline int filemap_check_wb_err(struct address_space *mapping, errseq_t since) Overly long line here (the patch has a few more)
WARNING: multiple messages have this Message-ID (diff)
From: Christoph Hellwig <hch@infradead.org> To: Jeff Layton <jlayton@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org>, Al Viro <viro@ZenIV.linux.org.uk>, Jan Kara <jack@suse.cz>, tytso@mit.edu, axboe@kernel.dk, mawilcox@microsoft.com, ross.zwisler@linux.intel.com, corbet@lwn.net, Chris Mason <clm@fb.com>, Josef Bacik <jbacik@fb.com>, David Sterba <dsterba@suse.com>, "Darrick J . Wong" <darrick.wong@oracle.com>, Carlos Maiolino <cmaiolino@redhat.com>, Eryu Guan <eguan@redhat.com>, David Howells <dhowells@redhat.com>, Christoph Hellwig <hch@infradead.org>, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-ext4@vger.kernel.org, linux-xfs@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-block@vger.kernel.org Subject: Re: [PATCH v7 11/22] fs: new infrastructure for writeback error handling and reporting Date: Tue, 20 Jun 2017 05:34:33 -0700 [thread overview] Message-ID: <20170620123433.GB19781@infradead.org> (raw) In-Reply-To: <20170616193427.13955-12-jlayton@redhat.com> > @@ -393,6 +394,7 @@ struct address_space { > gfp_t gfp_mask; /* implicit gfp mask for allocations */ > struct list_head private_list; /* ditto */ > void *private_data; /* ditto */ > + errseq_t wb_err; > } __attribute__((aligned(sizeof(long)))); > /* > * On most architectures that alignment is already the case; but > @@ -847,6 +849,7 @@ struct file { > * Must not be taken from IRQ context. > */ > spinlock_t f_lock; > + errseq_t f_wb_err; > atomic_long_t f_count; > unsigned int f_flags; > fmode_t f_mode; Did you check the sizes of the structure before and after? These places don't look like holes in the packing, but there probably are some available. > +static inline int filemap_check_wb_err(struct address_space *mapping, errseq_t since) Overly long line here (the patch has a few more) -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next prev parent reply other threads:[~2017-06-20 12:34 UTC|newest] Thread overview: 108+ messages / expand[flat|nested] mbox.gz Atom feed top 2017-06-16 19:34 [PATCH v7 00/22] fs: enhanced writeback error reporting with errseq_t (pile #1) Jeff Layton 2017-06-16 19:34 ` Jeff Layton 2017-06-16 19:34 ` [PATCH v7 01/22] fs: remove call_fsync helper function Jeff Layton 2017-06-16 19:34 ` Jeff Layton 2017-06-20 12:31 ` Christoph Hellwig 2017-06-20 12:31 ` Christoph Hellwig 2017-06-20 15:33 ` Jan Kara 2017-06-20 15:33 ` Jan Kara 2017-06-26 8:05 ` Carlos Maiolino 2017-06-26 8:05 ` Carlos Maiolino 2017-06-16 19:34 ` [PATCH v7 02/22] buffer: use mapping_set_error instead of setting the flag Jeff Layton 2017-06-16 19:34 ` Jeff Layton 2017-06-16 19:34 ` [PATCH v7 03/22] fs: check for writeback errors after syncing out buffers in generic_file_fsync Jeff Layton 2017-06-16 19:34 ` Jeff Layton 2017-06-16 19:34 ` [PATCH v7 04/22] buffer: set errors in mapping at the time that the error occurs Jeff Layton 2017-06-16 19:34 ` Jeff Layton 2017-06-26 8:19 ` Carlos Maiolino 2017-06-26 8:19 ` Carlos Maiolino 2017-06-16 19:34 ` [PATCH v7 05/22] jbd2: don't clear and reset errors after waiting on writeback Jeff Layton 2017-06-16 19:34 ` Jeff Layton 2017-06-20 15:32 ` Jan Kara 2017-06-20 15:32 ` Jan Kara 2017-06-26 8:23 ` Carlos Maiolino 2017-06-26 8:23 ` Carlos Maiolino 2017-06-16 19:34 ` [PATCH v7 06/22] mm: clear AS_EIO/AS_ENOSPC when writeback initiation fails Jeff Layton 2017-06-16 19:34 ` Jeff Layton 2017-06-16 19:34 ` [PATCH v7 07/22] mm: don't TestClearPageError in __filemap_fdatawait_range Jeff Layton 2017-06-16 19:34 ` Jeff Layton 2017-06-16 19:34 ` [PATCH v7 08/22] mm: clean up error handling in write_one_page Jeff Layton 2017-06-16 19:34 ` Jeff Layton 2017-06-16 19:34 ` [PATCH v7 09/22] fs: always sync metadata in __generic_file_fsync Jeff Layton 2017-06-16 19:34 ` Jeff Layton 2017-06-16 19:34 ` [PATCH v7 10/22] lib: add errseq_t type and infrastructure for handling it Jeff Layton 2017-06-16 19:34 ` Jeff Layton 2017-06-16 19:34 ` [PATCH v7 11/22] fs: new infrastructure for writeback error handling and reporting Jeff Layton 2017-06-16 19:34 ` Jeff Layton 2017-06-20 12:34 ` Christoph Hellwig [this message] 2017-06-20 12:34 ` Christoph Hellwig 2017-06-20 12:56 ` Jeff Layton 2017-06-20 12:56 ` Jeff Layton 2017-06-20 12:56 ` Jeff Layton 2017-06-20 12:56 ` Jeff Layton 2017-06-16 19:34 ` [PATCH v7 12/22] mm: tracepoints for writeback error events Jeff Layton 2017-06-16 19:34 ` Jeff Layton 2017-06-16 19:34 ` [PATCH v7 13/22] mm: set both AS_EIO/AS_ENOSPC and errseq_t in mapping_set_error Jeff Layton 2017-06-16 19:34 ` Jeff Layton 2017-06-16 19:34 ` [PATCH v7 14/22] Documentation: flesh out the section in vfs.txt on storing and reporting writeback errors Jeff Layton 2017-06-16 19:34 ` Jeff Layton 2017-06-16 19:34 ` [PATCH v7 15/22] dax: set errors in mapping when writeback fails Jeff Layton 2017-06-16 19:34 ` Jeff Layton 2017-06-17 12:39 ` Jeff Layton 2017-06-17 12:39 ` Jeff Layton 2017-06-17 12:39 ` Jeff Layton 2017-06-17 12:39 ` Jeff Layton 2017-06-19 17:48 ` Ross Zwisler 2017-06-19 17:48 ` Ross Zwisler 2017-06-16 19:34 ` [PATCH v7 16/22] block: convert to errseq_t based writeback error tracking Jeff Layton 2017-06-16 19:34 ` Jeff Layton 2017-06-20 12:35 ` Christoph Hellwig 2017-06-20 12:35 ` Christoph Hellwig 2017-06-20 17:44 ` Jeff Layton 2017-06-20 17:44 ` Jeff Layton 2017-06-20 17:44 ` Jeff Layton 2017-06-20 17:44 ` Jeff Layton 2017-06-24 11:59 ` Christoph Hellwig 2017-06-24 11:59 ` Christoph Hellwig 2017-06-24 13:16 ` Jeff Layton 2017-06-24 13:16 ` Jeff Layton 2017-06-24 13:16 ` Jeff Layton 2017-06-24 13:16 ` Jeff Layton 2017-06-26 14:34 ` Jeff Layton 2017-06-26 14:34 ` Jeff Layton 2017-06-26 14:34 ` Jeff Layton 2017-06-26 14:34 ` Jeff Layton 2017-06-27 15:20 ` Christoph Hellwig 2017-06-27 15:20 ` Christoph Hellwig 2017-06-16 19:34 ` [PATCH v7 17/22] ext4: use errseq_t based error handling for reporting data writeback errors Jeff Layton 2017-06-16 19:34 ` Jeff Layton 2017-06-16 19:34 ` [PATCH v7 18/22] fs: add f_md_wb_err field to struct file for tracking metadata errors Jeff Layton 2017-06-16 19:34 ` Jeff Layton 2017-06-16 19:34 ` [PATCH v7 19/22] ext4: add more robust reporting of metadata writeback errors Jeff Layton 2017-06-16 19:34 ` Jeff Layton 2017-06-16 19:34 ` [PATCH v7 20/22] ext2: convert to errseq_t based writeback error tracking Jeff Layton 2017-06-16 19:34 ` Jeff Layton 2017-06-16 19:34 ` [PATCH v7 21/22] xfs: minimal conversion to errseq_t writeback error reporting Jeff Layton 2017-06-16 19:34 ` Jeff Layton 2017-06-26 13:40 ` Carlos Maiolino 2017-06-26 13:40 ` Carlos Maiolino 2017-06-26 15:22 ` Darrick J. Wong 2017-06-26 15:22 ` Darrick J. Wong 2017-06-26 17:58 ` jlayton 2017-06-26 17:58 ` jlayton 2017-06-26 17:58 ` jlayton 2017-06-26 17:58 ` jlayton 2017-06-26 18:10 ` Darrick J. Wong 2017-06-26 18:10 ` Darrick J. Wong 2017-06-16 19:34 ` [PATCH v7 22/22] btrfs: minimal conversion to errseq_t writeback error reporting on fsync Jeff Layton 2017-06-16 19:34 ` Jeff Layton 2017-06-19 16:23 ` [PATCH v7 00/22] fs: enhanced writeback error reporting with errseq_t (pile #1) Jeff Layton 2017-06-19 16:23 ` Jeff Layton 2017-06-19 16:23 ` Jeff Layton 2017-06-19 16:23 ` Jeff Layton 2017-06-19 23:25 ` Stephen Rothwell 2017-06-19 23:25 ` Stephen Rothwell 2017-06-20 10:16 ` Jeff Layton 2017-06-20 10:16 ` Jeff Layton 2017-06-20 10:16 ` Jeff Layton 2017-06-20 10:16 ` Jeff Layton
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