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authorDavid Howells <dhowells@redhat.com>2023-11-27 13:58:07 +0000
committerDavid Howells <dhowells@redhat.com>2023-12-24 15:08:49 +0000
commitc9c4ff12df110feb1b91951010f673f4b16e49e8 (patch)
tree0145b64f713dc12b3bd82b5032d92f9a28624f3a /include/linux/fs.h
parent7eb5b3e3a0a55f2d166ca949ef47ca6e0c704aab (diff)
netfs: Move pinning-for-writeback from fscache to netfs
Move the resource pinning-for-writeback from fscache code to netfslib code. This is used to keep a cache backing object pinned whilst we have dirty pages on the netfs inode in the pagecache such that VM writeback will be able to reach it. Whilst we're at it, switch the parameters of netfs_unpin_writeback() to match ->write_inode() so that it can be used for that directly. Note that this mechanism could be more generically useful than that for network filesystems. Quite often they have to keep around other resources (e.g. authentication tokens or network connections) until the writeback is complete. Signed-off-by: David Howells <dhowells@redhat.com> Reviewed-by: Jeff Layton <jlayton@kernel.org> cc: linux-cachefs@redhat.com cc: linux-fsdevel@vger.kernel.org cc: linux-mm@kvack.org
Diffstat (limited to 'include/linux/fs.h')
-rw-r--r--include/linux/fs.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 98b7a7a8c42e..68a957261694 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2294,7 +2294,7 @@ static inline void kiocb_clone(struct kiocb *kiocb, struct kiocb *kiocb_src,
#define I_CREATING (1 << 15)
#define I_DONTCACHE (1 << 16)
#define I_SYNC_QUEUED (1 << 17)
-#define I_PINNING_FSCACHE_WB (1 << 18)
+#define I_PINNING_NETFS_WB (1 << 18)
#define I_DIRTY_INODE (I_DIRTY_SYNC | I_DIRTY_DATASYNC)
#define I_DIRTY (I_DIRTY_INODE | I_DIRTY_PAGES)