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UPSTREAM: erofs: enable large folios for iomap mode

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Enable large folios for iomap mode.  Then the readahead routine will
pass down large folios containing multiple pages.

Let's enable this for non-compressed format for now, until the
compression part supports large folios later.

When large folios supported, the iomap routine will allocate iomap_page
for each large folio and thus we need iomap_release_folio() and
iomap_invalidate_folio() to free iomap_page when these folios get
reclaimed or invalidated.

Signed-off-by: Jingbo Xu <jefflexu@linux.alibaba.com>
Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Link: https://lore.kernel.org/r/20221130060455.44532-1-jefflexu@linux.alibaba.com
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>

Bug: 318378021
Change-Id: Iedbb9a2daf132399b7a1b5ea6905977ba123ba3c
(cherry picked from commit ce529cc25b184e93397b94a8a322128fc0095cbb)
Signed-off-by: Sandeep Dhavale <dhavale@google.com>
This commit is contained in:
Jingbo Xu 2022-11-30 14:04:55 +08:00 committed by Treehugger Robot
parent 2c085909e7
commit 88a1939504
2 changed files with 4 additions and 0 deletions
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2
fs/erofs/data.c
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@ -404,6 +404,8 @@ const struct address_space_operations erofs_raw_access_aops = {
.readahead = erofs_readahead,
.bmap = erofs_bmap,
.direct_IO = noop_direct_IO,
.release_folio = iomap_release_folio,
.invalidate_folio = iomap_invalidate_folio,
};
#ifdef CONFIG_FS_DAX

2
fs/erofs/inode.c
View File

@ -299,6 +299,8 @@ static int erofs_fill_inode(struct inode *inode)
goto out_unlock;
}
inode->i_mapping->a_ops = &erofs_raw_access_aops;
if (!erofs_is_fscache_mode(inode->i_sb))
mapping_set_large_folios(inode->i_mapping);
#ifdef CONFIG_EROFS_FS_ONDEMAND
if (erofs_is_fscache_mode(inode->i_sb))
inode->i_mapping->a_ops = &erofs_fscache_access_aops;