kernel.git/fs/gfs2/aops.c, branch linux-4.20.y

pagevec: Use xa_mark_t

2018-10-21T14:46:39Z

Removes sparse warnings. Signed-off-by: Matthew Wilcox

gfs2: use iomap_readpage for blocksize == PAGE_SIZE

2018-07-24T22:08:49Z

We only use iomap_readpage for pages that don't have buffer heads attached yet: iomap_readpage would otherwise read pages from disk that are marked buffer_uptodate() but not PageUptodate(). Those pages may actually contain data more recent than what's on disk. Signed-off-by: Andreas Gruenbacher Reviewed-by: Bob Peterson

gfs2: Remove gfs2_write_{begin,end}

2018-07-02T15:27:38Z

Now that generic_file_write_iter is no longer used, there are no remaining users of these address space operations. Signed-off-by: Andreas Gruenbacher Reviewed-by: Bob Peterson

gfs2: iomap direct I/O support

2018-07-02T15:27:32Z

The page unmapping previously done in gfs2_direct_IO is now done generically in iomap_dio_rw. Signed-off-by: Andreas Gruenbacher Reviewed-by: Bob Peterson

gfs2: iomap buffered write support

2018-07-02T15:27:17Z

With the traditional page-based writes, blocks are allocated separately for each page written to. With iomap writes, we can allocate a lot more blocks at once, with a fraction of the allocation overhead for each page. Split calculating the number of blocks that can be allocated at a given position (gfs2_alloc_size) off from gfs2_iomap_alloc: that size determines the number of blocks to allocate and reserve in the journal. Signed-off-by: Andreas Gruenbacher Reviewed-by: Bob Peterson

gfs2: Remove ordered write mode handling from gfs2_trans_add_data

2018-06-04T12:50:16Z

In journaled data mode, we need to add each buffer head to the current transaction. In ordered write mode, we only need to add the inode to the ordered inode list. So far, both cases are handled in gfs2_trans_add_data. This makes the code look misleading and is inefficient for small block sizes as well. Handle both cases separately instead. Signed-off-by: Andreas Gruenbacher Signed-off-by: Bob Peterson

gfs2: gfs2_stuffed_write_end cleanup

2018-06-04T12:45:53Z

First, change the sanity check in gfs2_stuffed_write_end to check for the actual write size instead of the requested write size. Second, use the existing teardown code in gfs2_write_end instead of duplicating it in gfs2_stuffed_write_end. Signed-off-by: Andreas Gruenbacher Signed-off-by: Bob Peterson

GFS2: Fix allocation error bug with recursive rgrp glocking

2018-06-04T12:33:17Z

Before this patch function gfs2_write_begin, upon discovering an error, called gfs2_trim_blocks while the rgrp glock was still held. That's because gfs2_inplace_release is not called until later. This patch reorganizes the logic a bit so gfs2_inplace_release is called to release the lock prior to the call to gfs2_trim_blocks, thus preventing the glock recursion. Signed-off-by: Andreas Gruenbacher Signed-off-by: Bob Peterson

GFS2: Only set PageChecked for jdata pages

2018-03-08T16:26:20Z

Before this patch, GFS2 was setting the PageChecked flag for ordered write pages. This is unnecessary. The ext3 file system only does it for jdata, and it's only used in jdata circumstances. It only muddies the already murky waters of writing pages in the aops. Signed-off-by: Bob Peterson

GFS2: Log the reason for log flushes in every log header

2018-01-23T14:39:20Z

This patch just adds the capability for GFS2 to track which function called gfs2_log_flush. This should make it easier to diagnose problems based on the sequence of events found in the journals. Signed-off-by: Bob Peterson Reviewed-by: Andreas Gruenbacher