diff options
| author | David Howells <dhowells@redhat.com> | 2020-02-06 14:22:29 +0000 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2021-04-23 10:17:28 +0100 |
| commit | 5cbf03985c67c7f0ac8c5382cf5d4d0d630f95f3 (patch) | |
| tree | d367003f6b2317b8a0dcc320dd5c6af1ef8c2959 /fs/afs/internal.h | |
| parent | dc4191841d0998978349e9119ab2ccb080b8b957 (diff) | |
| download | linux-5cbf03985c67c7f0ac8c5382cf5d4d0d630f95f3.tar.gz | |
afs: Use new netfs lib read helper API
Make AFS use the new netfs read helpers to implement the VM read
operations:
- afs_readpage() now hands off responsibility to netfs_readpage().
- afs_readpages() is gone and replaced with afs_readahead().
- afs_readahead() just hands off responsibility to netfs_readahead().
These make use of the cache if a cookie is supplied, otherwise just call
the ->issue_op() method a sufficient number of times to complete the entire
request.
Changes:
v5:
- Use proper wait function for PG_fscache in afs_page_mkwrite()[1].
- Use killable wait for PG_writeback in afs_page_mkwrite()[1].
v4:
- Folded in error handling fixes to afs_req_issue_op().
- Added flag to netfs_subreq_terminated() to indicate that the caller may
have been running async and stuff that might sleep needs punting to a
workqueue.
Signed-off-by: David Howells <dhowells@redhat.com>
Tested-By: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
cc: linux-cachefs@redhat.com
cc: linux-fsdevel@vger.kernel.org
Link: https://lore.kernel.org/r/2499407.1616505440@warthog.procyon.org.uk [1]
Link: https://lore.kernel.org/r/160588542733.3465195.7526541422073350302.stgit@warthog.procyon.org.uk/ # rfc
Link: https://lore.kernel.org/r/161118158436.1232039.3884845981224091996.stgit@warthog.procyon.org.uk/ # rfc
Link: https://lore.kernel.org/r/161161053540.2537118.14904446369309535330.stgit@warthog.procyon.org.uk/ # v2
Link: https://lore.kernel.org/r/161340418739.1303470.5908092911600241280.stgit@warthog.procyon.org.uk/ # v3
Link: https://lore.kernel.org/r/161539561926.286939.5729036262354802339.stgit@warthog.procyon.org.uk/ # v4
Link: https://lore.kernel.org/r/161653817977.2770958.17696456811587237197.stgit@warthog.procyon.org.uk/ # v5
Link: https://lore.kernel.org/r/161789101258.6155.3879271028895121537.stgit@warthog.procyon.org.uk/ # v6
Diffstat (limited to 'fs/afs/internal.h')
| -rw-r--r-- | fs/afs/internal.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/afs/internal.h b/fs/afs/internal.h index ee283e3ebc4d..f9a692fc08f4 100644 --- a/fs/afs/internal.h +++ b/fs/afs/internal.h @@ -14,6 +14,7 @@ #include <linux/key.h> #include <linux/workqueue.h> #include <linux/sched.h> +#define FSCACHE_USE_NEW_IO_API #include <linux/fscache.h> #include <linux/backing-dev.h> #include <linux/uuid.h> @@ -207,6 +208,7 @@ struct afs_read { loff_t file_size; /* File size returned by server */ struct key *key; /* The key to use to reissue the read */ struct afs_vnode *vnode; /* The file being read into. */ + struct netfs_read_subrequest *subreq; /* Fscache helper read request this belongs to */ afs_dataversion_t data_version; /* Version number returned by server */ refcount_t usage; unsigned int call_debug_id; @@ -1049,6 +1051,7 @@ extern void afs_put_wb_key(struct afs_wb_key *); extern int afs_open(struct inode *, struct file *); 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 *); static inline struct afs_read *afs_get_read(struct afs_read *req) |