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| author |   David Howells <dhowells@redhat.com> | 2021-08-12 22:09:57 +0100 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2021-11-10 21:16:52 +0000 |
| commit | 452c472e26348df1e7052544130aa98eebbd2331 (patch) | |
| tree | e6fe630639ed2a00c862269c3f247e67022b58de /mm | |
| parent | folio: Add a function to change the private data attached to a folio (diff) | |
| download | linux-dev-452c472e26348df1e7052544130aa98eebbd2331.tar.xz linux-dev-452c472e26348df1e7052544130aa98eebbd2331.zip | |
folio: Add a function to get the host inode for a folio
Add a convenience function, folio_inode() that will get the host inode from
a folio's mapping.
Changes:
ver #3:
- Fix mistake in function description[2].
ver #2:
- Fix contradiction between doc and implementation by disallowing use
with swap caches[1].
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Tested-by: Jeff Layton <jlayton@kernel.org>
Tested-by: Dominique Martinet <asmadeus@codewreck.org>
Tested-by: kafs-testing@auristor.com
Link: https://lore.kernel.org/r/YST8OcVNy02Rivbm@casper.infradead.org/ [1]
Link: https://lore.kernel.org/r/YYKLkBwQdtn4ja+i@casper.infradead.org/ [2]
Link: https://lore.kernel.org/r/162880453171.3369675.3704943108660112470.stgit@warthog.procyon.org.uk/ # rfc
Link: https://lore.kernel.org/r/162981151155.1901565.7010079316994382707.stgit@warthog.procyon.org.uk/
Link: https://lore.kernel.org/r/163005744370.2472992.18324470937328925723.stgit@warthog.procyon.org.uk/ # v2
Link: https://lore.kernel.org/r/163584184628.4023316.9386282630968981869.stgit@warthog.procyon.org.uk/ # v3
Link: https://lore.kernel.org/r/163649325519.309189.15072332908703129455.stgit@warthog.procyon.org.uk/ # v4
Link: https://lore.kernel.org/r/163657850401.834781.1031963517399283294.stgit@warthog.procyon.org.uk/ # v5
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/page-writeback.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/page-writeback.c b/mm/page-writeback.c index 2d498bb62248..a613f8ef6a02 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -2967,7 +2967,7 @@ EXPORT_SYMBOL_GPL(folio_wait_writeback_killable); */ void folio_wait_stable(struct folio *folio) { - if (folio->mapping->host->i_sb->s_iflags & SB_I_STABLE_WRITES) + if (folio_inode(folio)->i_sb->s_iflags & SB_I_STABLE_WRITES) folio_wait_writeback(folio); } EXPORT_SYMBOL_GPL(folio_wait_stable); |