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| author | David Howells <dhowells@redhat.com> | 2020-02-06 14:22:30 +0000 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2022-01-07 13:44:52 +0000 |
| commit | c7f75ef33b6dcd4269d0f6ee8c50221ee3390733 (patch) | |
| tree | 2f604c5cc0acbe83a10271054fd1d8c4662df50e /fs/afs/internal.h | |
| parent | 523d27cda149cfc8c99159c0f68f690e4d3b9d14 (diff) | |
| download | linux-c7f75ef33b6dcd4269d0f6ee8c50221ee3390733.tar.gz | |
afs: Copy local writes to the cache when writing to the server
When writing to the server from afs_writepage() or afs_writepages(), copy
the data to the cache object too.
To make this possible, the cookie must have its active users count
incremented when the page is dirtied and kept incremented until we manage
to clean up all the pages. This allows the writeback to take place after
the last file struct is released.
Signed-off-by: David Howells <dhowells@redhat.com>
Tested-by: kafs-testing@auristor.com
Acked-by: Jeff Layton <jlayton@kernel.org>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
cc: linux-cachefs@redhat.com
Link: https://lore.kernel.org/r/163819662333.215744.7531373404219224438.stgit@warthog.procyon.org.uk/ # v1
Link: https://lore.kernel.org/r/163906970998.143852.674420788614608063.stgit@warthog.procyon.org.uk/ # v2
Link: https://lore.kernel.org/r/163967176564.1823006.16666056085593949570.stgit@warthog.procyon.org.uk/ # v3
Link: https://lore.kernel.org/r/164021570208.640689.9193494979708031862.stgit@warthog.procyon.org.uk/ # v4
Diffstat (limited to 'fs/afs/internal.h')
| -rw-r--r-- | fs/afs/internal.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/afs/internal.h b/fs/afs/internal.h index 1d80649aec72..b6f02321fc09 100644 --- a/fs/afs/internal.h +++ b/fs/afs/internal.h @@ -1072,6 +1072,7 @@ extern int afs_release(struct inode *, struct file *); extern int afs_fetch_data(struct afs_vnode *, struct afs_read *); extern struct afs_read *afs_alloc_read(gfp_t); extern void afs_put_read(struct afs_read *); +extern int afs_write_inode(struct inode *, struct writeback_control *); static inline struct afs_read *afs_get_read(struct afs_read *req) { @@ -1519,7 +1520,11 @@ extern int afs_check_volume_status(struct afs_volume *, struct afs_operation *); /* * write.c */ +#ifdef CONFIG_AFS_FSCACHE extern int afs_set_page_dirty(struct page *); +#else +#define afs_set_page_dirty __set_page_dirty_nobuffers +#endif extern int afs_write_begin(struct file *file, struct address_space *mapping, loff_t pos, unsigned len, unsigned flags, struct page **pagep, void **fsdata); |