search for: ocfs2_direct_io

...fffa028b2be>] ocfs2_get_clusters+0x23e/0x3b0 [ocfs2] [Fri Oct 18 10:52:28 2013] [<ffffffff8109a9ad>] ? sched_clock_cpu+0xbd/0x110 [Fri Oct 18 10:52:28 2013] [<ffffffffa028b48a>] ocfs2_extent_map_get_blocks+0x5a/0x190 [ocfs2] [Fri Oct 18 10:52:28 2013] [<ffffffffa026eb3a>] ocfs2_direct_IO_get_blocks+0x5a/0x160 [ocfs2] [Fri Oct 18 10:52:28 2013] [<ffffffff811c87c1>] ? inode_dio_done+0x31/0x40 [Fri Oct 18 10:52:28 2013] [<ffffffff811ea90c>] do_blockdev_direct_IO+0xdfc/0x1fb0 [Fri Oct 18 10:52:28 2013] [<ffffffffa026eae0>] ? ocfs2_dio_end_io+0x110/0x110 [ocfs2] [...

...t file * } const struct address_space_operations ocfs2_aops = { - .readpage = ocfs2_readpage, - .readpages = ocfs2_readpages, - .writepage = ocfs2_writepage, - .write_begin = ocfs2_write_begin, - .write_end = ocfs2_write_end, - .bmap = ocfs2_bmap, - .sync_page = block_sync_page, - .direct_IO = ocfs2_direct_IO, - .invalidatepage = ocfs2_invalidatepage, - .releasepage = ocfs2_releasepage, - .migratepage = buffer_migrate_page, + .readpage = ocfs2_readpage, + .readpages = ocfs2_readpages, + .writepage = ocfs2_writepage, + .write_begin = ocfs2_write_begin, + .write_end = ocfs2_write_end, + .bmap = ocf...

...g_entry("(block = %llu)\n", (unsigned long long)block); + mlog_entry("(0x%p, %llu)\n", mapping, (unsigned long long)block); /* We don't need to lock journal system files, since they aren't * accessed concurrently from multiple nodes. @@ -555,6 +586,9 @@ static int ocfs2_direct_IO_get_blocks(struct inode *inode, sector_t iblock, unsigned char blocksize_bits = inode->i_sb->s_blocksize_bits; unsigned long max_blocks = bh_result->b_size >> inode->i_blkbits; + mlog_entry("(%llu, %llu, 0x%p, %d)\n", OCFS2_I(inode)->ip_blkno, + (unsigned lo...

..._entry("(block = %llu)\n", (unsigned long long)block); + mlog_entry("(0x%p, %llu)\n", mapping, (unsigned long long)block); /* We don't need to lock journal system files, since they aren't * accessed concurrently from multiple nodes. @@ -555,6 +589,10 @@ static int ocfs2_direct_IO_get_blocks(struct inode *inode, sector_t iblock, unsigned char blocksize_bits = inode->i_sb->s_blocksize_bits; unsigned long max_blocks = bh_result->b_size >> inode->i_blkbits; + mlog_entry("(%llu, %llu, 0x%p, %d)\n", + (unsigned long long)OCFS2_I(inode)->ip...

..._entry("(block = %llu)\n", (unsigned long long)block); + mlog_entry("(0x%p, %llu)\n", mapping, (unsigned long long)block); /* We don't need to lock journal system files, since they aren't * accessed concurrently from multiple nodes. @@ -555,6 +589,10 @@ static int ocfs2_direct_IO_get_blocks(struct inode *inode, sector_t iblock, unsigned char blocksize_bits = inode->i_sb->s_blocksize_bits; unsigned long max_blocks = bh_result->b_size >> inode->i_blkbits; + mlog_entry("(%llu, %llu, 0x%p, %d)\n", + (unsigned long long)OCFS2_I(inode)->ip...

ocfs2 currently uses the Journaled Block Device (JBD) for its journaling. This is a very stable and tested codebase. However, JBD is limited by architecture to 32bit block numbers. This means an ocfs2 filesystem is limited to 2^32 blocks. With a 4K blocksize, that's 16TB. People want larger volumes. Fortunately, there is now JBD2. JBD2 adds 64bit block number support and some other

i_alloc_sem has always been a bit of an odd "lock". It''s the only remaining rw_semaphore that can be released by a different thread than the one that locked it, and it''s use case in the core direct I/O code is more like a counter given that the writers already have external serialization. This series removes it in favour of a simpler counter scheme, thus getting rid

V1->V2: Check to see if our current ppos is >= i_size after a short DIO read, just in case it was actually a short read and we need to just return. This is similar to what already happens in the write case. If we have a short read while doing O_DIRECT, instead of just returning, fallthrough and try to read the rest via buffered IO. BTRFS needs this because if we encounter a compressed or

Hi, The following patches comprise the bulk of Ocfs2 updates for the 2.6.30 merge window. Aside from larger, more involved fixes, we're adding the following features, which I will describe in the order their patches are mailed. Sunil's exported some more state to our debugfs files, and consolidated some other aspects of our debugfs infrastructure. This will further aid us in debugging