@@ -78,19 +78,39 @@ Options
offering several exported file systems.
cache=mode specifies a caching policy. By default, no caches are used.
-
- none
- default no cache policy, metadata and data
- alike are synchronous.
- loose
- no attempts are made at consistency,
- intended for exclusive, read-only mounts
- fscache
- use FS-Cache for a persistent, read-only
- cache backend.
- mmap
- minimal cache that is only used for read-write
- mmap. Northing else is cached, like cache=none
+ The mode can be specified as a bitmask or by using one of the
+ prexisting common 'shortcuts'.
+ The bitmask is described below: (unspecified bits are reserved)
+
+ ========== ====================================================
+ 0b00000000 all caches disabled, mmap disabled
+ 0b00000001 file caches enabled
+ 0b00000010 meta-data caches enabled
+ 0b00000100 writeback behavior (as opposed to writethrough)
+ 0b00001000 loose caches (no explicit consistency with server)
+ 0b10000000 fscache enabled for persistent caching
+ ========== ====================================================
+
+ The current shortcuts and their associated bitmask are:
+
+ ========= ====================================================
+ none 0b00000000 (no caching)
+ readahead 0b00000001 (only read-ahead file caching)
+ mmap 0b00000101 (read-ahead + writeback file cache)
+ loose 0b00001111 (non-coherent file and meta-data caches)
+ fscache 0b10001111 (persistent loose cache)
+ ========= ====================================================
+
+ NOTE: only these shortcuts are tested modes of operation at the
+ moment, so using other combinations of bit-patterns is not
+ known to work. Work on better cache support is in progress.
+
+ IMPORTANT: loose caches (and by extension at the moment fscache)
+ do not necessarily validate cached values on the server. In other
+ words changes on the server are not guaranteed to be reflected
+ on the client system. Only use this mode of operation if you
+ have an exclusive mount and the server will modify the filesystem
+ underneath you.
debug=n specifies debug level. The debug level is a bitmask.
@@ -137,6 +157,10 @@ Options
This can be used to share devices/named pipes/sockets between
hosts. This functionality will be expanded in later versions.
+ directio bypass page cache on all read/write operations
+
+ ignoreqv ignore qid.version==0 as a marker to ignore cache
+
noxattr do not offer xattr functions on this mount.
access there are four access modes.
@@ -8,9 +8,8 @@
#ifndef _9P_CACHE_H
#define _9P_CACHE_H
-#include <linux/fscache.h>
-
#ifdef CONFIG_9P_FSCACHE
+#include <linux/fscache.h>
extern int v9fs_cache_session_get_cookie(struct v9fs_session_info *v9ses,
const char *dev_name);
@@ -56,11 +56,9 @@ static inline void v9fs_fid_add_modes(struct p9_fid *fid, int s_flags,
((fid->qid.version == 0) && !(s_flags & V9FS_IGNORE_QV)) ||
(s_flags & V9FS_DIRECT_IO) || (f_flags & O_DIRECT)) {
fid->mode |= P9L_DIRECT; /* no read or write cache */
- } else if ((s_cache < CACHE_WRITEBACK) ||
+ } else if ((!(s_cache & CACHE_WRITEBACK)) ||
(f_flags & O_DSYNC) | (s_flags & V9FS_SYNC)) {
fid->mode |= P9L_NOWRITECACHE;
- } else if (s_cache == CACHE_LOOSE) {
- fid->mode |= P9L_LOOSE; /* noncoherent cache */
}
}
#endif
@@ -66,40 +66,30 @@ static const match_table_t tokens = {
{Opt_err, NULL}
};
-static const char *const v9fs_cache_modes[nr__p9_cache_modes] = {
- [CACHE_NONE] = "none",
- [CACHE_READAHEAD] = "readahead",
- [CACHE_WRITEBACK] = "writeback",
- [CACHE_MMAP] = "mmap",
- [CACHE_LOOSE] = "loose",
- [CACHE_FSCACHE] = "fscache",
-};
-
/* Interpret mount options for cache mode */
static int get_cache_mode(char *s)
{
int version = -EINVAL;
if (!strcmp(s, "loose")) {
- version = CACHE_LOOSE;
+ version = CACHE_SC_LOOSE;
p9_debug(P9_DEBUG_9P, "Cache mode: loose\n");
} else if (!strcmp(s, "fscache")) {
- version = CACHE_FSCACHE;
+ version = CACHE_SC_FSCACHE;
p9_debug(P9_DEBUG_9P, "Cache mode: fscache\n");
} else if (!strcmp(s, "mmap")) {
- version = CACHE_MMAP;
+ version = CACHE_SC_MMAP;
p9_debug(P9_DEBUG_9P, "Cache mode: mmap\n");
- } else if (!strcmp(s, "writeback")) {
- version = CACHE_WRITEBACK;
- p9_debug(P9_DEBUG_9P, "Cache mode: writeback\n");
} else if (!strcmp(s, "readahead")) {
- version = CACHE_READAHEAD;
+ version = CACHE_SC_READAHEAD;
p9_debug(P9_DEBUG_9P, "Cache mode: readahead\n");
} else if (!strcmp(s, "none")) {
- version = CACHE_NONE;
+ version = CACHE_SC_NONE;
p9_debug(P9_DEBUG_9P, "Cache mode: none\n");
- } else
- pr_info("Unknown Cache mode %s\n", s);
+ } else if (kstrtoint(s, 0, &version) != 0) {
+ version = -EINVAL;
+ pr_info("Unknown Cache mode or invalid value %s\n", s);
+ }
return version;
}
@@ -127,9 +117,9 @@ int v9fs_show_options(struct seq_file *m, struct dentry *root)
if (v9ses->nodev)
seq_puts(m, ",nodevmap");
if (v9ses->cache)
- seq_printf(m, ",cache=%s", v9fs_cache_modes[v9ses->cache]);
+ seq_printf(m, ",cache=%x", v9ses->cache);
#ifdef CONFIG_9P_FSCACHE
- if (v9ses->cachetag && v9ses->cache == CACHE_FSCACHE)
+ if (v9ses->cachetag && (v9ses->cache & CACHE_FSCACHE))
seq_printf(m, ",cachetag=%s", v9ses->cachetag);
#endif
@@ -481,7 +471,7 @@ struct p9_fid *v9fs_session_init(struct v9fs_session_info *v9ses,
#ifdef CONFIG_9P_FSCACHE
/* register the session for caching */
- if (v9ses->cache == CACHE_FSCACHE) {
+ if (v9ses->cache & CACHE_FSCACHE) {
rc = v9fs_cache_session_get_cookie(v9ses, dev_name);
if (rc < 0)
goto err_clnt;
@@ -31,35 +31,54 @@
#define V9FS_ACL_MASK V9FS_POSIX_ACL
enum p9_session_flags {
- V9FS_PROTO_2000U = 0x01,
- V9FS_PROTO_2000L = 0x02,
- V9FS_ACCESS_SINGLE = 0x04,
- V9FS_ACCESS_USER = 0x08,
- V9FS_ACCESS_CLIENT = 0x10,
- V9FS_POSIX_ACL = 0x20,
- V9FS_NO_XATTR = 0x40,
- V9FS_IGNORE_QV = 0x80, /* ignore qid.version for cache hints */
- V9FS_DIRECT_IO = 0x100,
- V9FS_SYNC = 0x200
+ V9FS_PROTO_2000U = 0x01,
+ V9FS_PROTO_2000L = 0x02,
+ V9FS_ACCESS_SINGLE = 0x04,
+ V9FS_ACCESS_USER = 0x08,
+ V9FS_ACCESS_CLIENT = 0x10,
+ V9FS_POSIX_ACL = 0x20,
+ V9FS_NO_XATTR = 0x40,
+ V9FS_IGNORE_QV = 0x80, /* ignore qid.version for cache hints */
+ V9FS_DIRECT_IO = 0x100,
+ V9FS_SYNC = 0x200
};
-/* possible values of ->cache */
/**
- * enum p9_cache_modes - user specified cache preferences
- * @CACHE_NONE: do not cache data, dentries, or directory contents (default)
- * @CACHE_LOOSE: cache data, dentries, and directory contents w/no consistency
+ * enum p9_cache_shortcuts - human readable cache preferences
+ * @CACHE_SC_NONE: disable all caches
+ * @CACHE_SC_READAHEAD: only provide caching for readahead
+ * @CACHE_SC_MMAP: provide caching to enable mmap
+ * @CACHE_SC_LOOSE: non-coherent caching for files and meta data
+ * @CACHE_SC_FSCACHE: persistent non-coherent caching for files and meta-data
*
- * eventually support loose, tight, time, session, default always none
*/
-enum p9_cache_modes {
- CACHE_NONE,
- CACHE_READAHEAD,
- CACHE_WRITEBACK,
- CACHE_MMAP,
- CACHE_LOOSE,
- CACHE_FSCACHE,
- nr__p9_cache_modes
+enum p9_cache_shortcuts {
+ CACHE_SC_NONE = 0b00000000,
+ CACHE_SC_READAHEAD = 0b00000001,
+ CACHE_SC_MMAP = 0b00000101,
+ CACHE_SC_LOOSE = 0b00001111,
+ CACHE_SC_FSCACHE = 0b10001111,
+};
+
+/**
+ * enum p9_cache_bits - possible values of ->cache
+ * @CACHE_NONE: caches disabled
+ * @CACHE_FILE: file caching (open to close)
+ * @CACHE_META: meta-data and directory caching
+ * @CACHE_WRITEBACK: write-back caching for files
+ * @CACHE_LOOSE: don't check cache consistency
+ * @CACHE_FSCACHE: local persistent caches
+ *
+ */
+
+enum p9_cache_bits {
+ CACHE_NONE = 0b00000000,
+ CACHE_FILE = 0b00000001,
+ CACHE_META = 0b00000010,
+ CACHE_WRITEBACK = 0b00000100,
+ CACHE_LOOSE = 0b00001000,
+ CACHE_FSCACHE = 0b10000000,
};
/**
@@ -68,7 +87,7 @@ enum p9_cache_modes {
* @nodev: set to 1 to disable device mapping
* @debug: debug level
* @afid: authentication handle
- * @cache: cache mode of type &p9_cache_modes
+ * @cache: cache mode of type &p9_cache_bits
* @cachetag: the tag of the cache associated with this session
* @fscache: session cookie associated with FS-Cache
* @uname: string user name to mount hierarchy as
@@ -115,8 +115,6 @@ const struct netfs_request_ops v9fs_req_ops = {
static bool v9fs_release_folio(struct folio *folio, gfp_t gfp)
{
- struct inode *inode = folio_inode(folio);
-
if (folio_test_private(folio))
return false;
#ifdef CONFIG_9P_FSCACHE
@@ -125,8 +123,8 @@ static bool v9fs_release_folio(struct folio *folio, gfp_t gfp)
return false;
folio_wait_fscache(folio);
}
+ fscache_note_page_release(v9fs_inode_cookie(V9FS_I(folio_inode(folio))));
#endif
- fscache_note_page_release(v9fs_inode_cookie(V9FS_I(inode)));
return true;
}
@@ -136,6 +134,7 @@ static void v9fs_invalidate_folio(struct folio *folio, size_t offset,
folio_wait_fscache(folio);
}
+#ifdef CONFIG_9P_FSCACHE
static void v9fs_write_to_cache_done(void *priv, ssize_t transferred_or_error,
bool was_async)
{
@@ -149,18 +148,19 @@ static void v9fs_write_to_cache_done(void *priv, ssize_t transferred_or_error,
i_size_read(&v9inode->netfs.inode), 0);
}
}
+#endif
static int v9fs_vfs_write_folio_locked(struct folio *folio)
{
struct inode *inode = folio_inode(folio);
- struct v9fs_inode *v9inode = V9FS_I(inode);
- struct fscache_cookie *cookie = v9fs_inode_cookie(v9inode);
loff_t start = folio_pos(folio);
loff_t i_size = i_size_read(inode);
struct iov_iter from;
size_t len = folio_size(folio);
struct p9_fid *writeback_fid;
int err;
+ struct v9fs_inode __maybe_unused *v9inode = V9FS_I(inode);
+ struct fscache_cookie __maybe_unused *cookie = v9fs_inode_cookie(v9inode);
if (start >= i_size)
return 0; /* Simultaneous truncation occurred */
@@ -181,15 +181,17 @@ static int v9fs_vfs_write_folio_locked(struct folio *folio)
p9_client_write(writeback_fid, start, &from, &err);
+#ifdef CONFIG_9P_FSCACHE
if (err == 0 &&
- fscache_cookie_enabled(cookie) &&
- test_bit(FSCACHE_COOKIE_IS_CACHING, &cookie->flags)) {
+ fscache_cookie_enabled(cookie) &&
+ test_bit(FSCACHE_COOKIE_IS_CACHING, &cookie->flags)) {
folio_start_fscache(folio);
fscache_write_to_cache(v9fs_inode_cookie(v9inode),
- folio_mapping(folio), start, len, i_size,
- v9fs_write_to_cache_done, v9inode,
- true);
+ folio_mapping(folio), start, len, i_size,
+ v9fs_write_to_cache_done, v9inode,
+ true);
}
+#endif
folio_end_writeback(folio);
p9_fid_put(writeback_fid);
@@ -300,7 +302,6 @@ static int v9fs_write_end(struct file *filp, struct address_space *mapping,
loff_t last_pos = pos + copied;
struct folio *folio = page_folio(subpage);
struct inode *inode = mapping->host;
- struct v9fs_inode *v9inode = V9FS_I(inode);
p9_debug(P9_DEBUG_VFS, "filp %p, mapping %p\n", filp, mapping);
@@ -320,7 +321,10 @@ static int v9fs_write_end(struct file *filp, struct address_space *mapping,
if (last_pos > inode->i_size) {
inode_add_bytes(inode, last_pos - inode->i_size);
i_size_write(inode, last_pos);
- fscache_update_cookie(v9fs_inode_cookie(v9inode), NULL, &last_pos);
+#ifdef CONFIG_9P_FSCACHE
+ fscache_update_cookie(v9fs_inode_cookie(V9FS_I(inode)), NULL,
+ &last_pos);
+#endif
}
folio_mark_dirty(folio);
out:
@@ -41,13 +41,11 @@ static const struct vm_operations_struct v9fs_mmap_file_vm_ops;
int v9fs_file_open(struct inode *inode, struct file *file)
{
int err;
- struct v9fs_inode *v9inode;
struct v9fs_session_info *v9ses;
struct p9_fid *fid;
int omode;
p9_debug(P9_DEBUG_VFS, "inode: %p file: %p\n", inode, file);
- v9inode = V9FS_I(inode);
v9ses = v9fs_inode2v9ses(inode);
if (v9fs_proto_dotl(v9ses))
omode = v9fs_open_to_dotl_flags(file->f_flags);
@@ -60,7 +58,7 @@ int v9fs_file_open(struct inode *inode, struct file *file)
if (IS_ERR(fid))
return PTR_ERR(fid);
- if ((v9ses->cache >= CACHE_WRITEBACK) && (omode & P9_OWRITE)) {
+ if ((v9ses->cache & CACHE_WRITEBACK) && (omode & P9_OWRITE)) {
int writeback_omode = (omode & ~P9_OWRITE) | P9_ORDWR;
p9_debug(P9_DEBUG_CACHE, "write-only file with writeback enabled, try opening O_RDWR\n");
@@ -85,8 +83,8 @@ int v9fs_file_open(struct inode *inode, struct file *file)
}
#ifdef CONFIG_9P_FSCACHE
- if (v9ses->cache == CACHE_FSCACHE)
- fscache_use_cookie(v9fs_inode_cookie(v9inode),
+ if (v9ses->cache & CACHE_FSCACHE)
+ fscache_use_cookie(v9fs_inode_cookie(V9FS_I(inode)),
file->f_mode & FMODE_WRITE);
#endif
v9fs_fid_add_modes(fid, v9ses->flags, v9ses->cache, file->f_flags);
@@ -485,7 +483,7 @@ v9fs_file_mmap(struct file *filp, struct vm_area_struct *vma)
p9_debug(P9_DEBUG_MMAP, "filp :%p\n", filp);
- if (v9ses->cache < CACHE_MMAP) {
+ if (!(v9ses->cache & CACHE_WRITEBACK)) {
p9_debug(P9_DEBUG_CACHE, "(no mmap mode)");
if (vma->vm_flags & VM_MAYSHARE)
return -ENODEV;
@@ -371,17 +371,23 @@ struct inode *v9fs_get_inode(struct super_block *sb, umode_t mode, dev_t rdev)
*/
void v9fs_evict_inode(struct inode *inode)
{
- struct v9fs_inode *v9inode = V9FS_I(inode);
- __le32 version;
+ struct v9fs_inode __maybe_unused *v9inode = V9FS_I(inode);
+ __le32 __maybe_unused version;
truncate_inode_pages_final(&inode->i_data);
+
+#ifdef CONFIG_9P_FSCACHE
version = cpu_to_le32(v9inode->qid.version);
fscache_clear_inode_writeback(v9fs_inode_cookie(v9inode), inode,
&version);
+#endif
+
clear_inode(inode);
filemap_fdatawrite(&inode->i_data);
+#ifdef CONFIG_9P_FSCACHE
fscache_relinquish_cookie(v9fs_inode_cookie(v9inode), false);
+#endif
}
static int v9fs_test_inode(struct inode *inode, void *data)
@@ -761,7 +767,7 @@ struct dentry *v9fs_vfs_lookup(struct inode *dir, struct dentry *dentry,
inode = NULL;
else if (IS_ERR(fid))
inode = ERR_CAST(fid);
- else if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE)
+ else if (v9ses->cache & (CACHE_META|CACHE_LOOSE))
inode = v9fs_get_inode_from_fid(v9ses, fid, dir->i_sb);
else
inode = v9fs_get_new_inode_from_fid(v9ses, fid, dir->i_sb);
@@ -790,7 +796,7 @@ v9fs_vfs_atomic_open(struct inode *dir, struct dentry *dentry,
{
int err;
u32 perm;
- struct v9fs_inode *v9inode;
+ struct v9fs_inode __maybe_unused *v9inode;
struct v9fs_session_info *v9ses;
struct p9_fid *fid;
struct dentry *res = NULL;
@@ -816,7 +822,7 @@ v9fs_vfs_atomic_open(struct inode *dir, struct dentry *dentry,
perm = unixmode2p9mode(v9ses, mode);
p9_omode = v9fs_uflags2omode(flags, v9fs_proto_dotu(v9ses));
- if ((v9ses->cache >= CACHE_WRITEBACK) && (p9_omode & P9_OWRITE)) {
+ if ((v9ses->cache & CACHE_WRITEBACK) && (p9_omode & P9_OWRITE)) {
p9_omode = (p9_omode & !P9_OWRITE) | P9_ORDWR;
p9_debug(P9_DEBUG_CACHE,
"write-only file with writeback enabled, creating w/ O_RDWR\n");
@@ -835,9 +841,11 @@ v9fs_vfs_atomic_open(struct inode *dir, struct dentry *dentry,
goto error;
file->private_data = fid;
- if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE)
+#ifdef CONFIG_9P_FSCACHE
+ if (v9ses->cache & CACHE_FSCACHE)
fscache_use_cookie(v9fs_inode_cookie(v9inode),
file->f_mode & FMODE_WRITE);
+#endif
v9fs_fid_add_modes(fid, v9ses->flags, v9ses->cache, file->f_flags);
v9fs_open_fid_add(inode, &fid);
@@ -1008,10 +1016,10 @@ v9fs_vfs_getattr(struct mnt_idmap *idmap, const struct path *path,
p9_debug(P9_DEBUG_VFS, "dentry: %p\n", dentry);
v9ses = v9fs_dentry2v9ses(dentry);
- if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) {
+ if (v9ses->cache & (CACHE_META|CACHE_LOOSE)) {
generic_fillattr(&nop_mnt_idmap, inode, stat);
return 0;
- } else if (v9ses->cache >= CACHE_WRITEBACK) {
+ } else if (v9ses->cache & CACHE_WRITEBACK) {
if (S_ISREG(inode->i_mode)) {
int retval = filemap_fdatawrite(inode->i_mapping);
@@ -1050,7 +1058,6 @@ static int v9fs_vfs_setattr(struct mnt_idmap *idmap,
{
int retval, use_dentry = 0;
struct inode *inode = d_inode(dentry);
- struct v9fs_inode *v9inode = V9FS_I(inode);
struct v9fs_session_info *v9ses;
struct p9_fid *fid = NULL;
struct p9_wstat wstat;
@@ -1115,8 +1122,13 @@ static int v9fs_vfs_setattr(struct mnt_idmap *idmap,
truncate_setsize(inode, iattr->ia_size);
truncate_pagecache(inode, iattr->ia_size);
- if (v9ses->cache == CACHE_FSCACHE)
+#ifdef CONFIG_9P_FSCACHE
+ if (v9ses->cache & CACHE_FSCACHE) {
+ struct v9fs_inode *v9inode = V9FS_I(inode);
+
fscache_resize_cookie(v9fs_inode_cookie(v9inode), iattr->ia_size);
+ }
+#endif
}
v9fs_invalidate_inode_attr(inode);
@@ -1400,7 +1412,7 @@ int v9fs_refresh_inode(struct p9_fid *fid, struct inode *inode)
* We don't want to refresh inode->i_size,
* because we may have cached data
*/
- flags = (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) ?
+ flags = (v9ses->cache & CACHE_LOOSE) ?
V9FS_STAT2INODE_KEEP_ISIZE : 0;
v9fs_stat2inode(st, inode, inode->i_sb, flags);
out:
@@ -287,7 +287,7 @@ v9fs_vfs_atomic_open_dotl(struct inode *dir, struct dentry *dentry,
goto out;
}
- if ((v9ses->cache >= CACHE_WRITEBACK) && (p9_omode & P9_OWRITE)) {
+ if ((v9ses->cache & CACHE_WRITEBACK) && (p9_omode & P9_OWRITE)) {
p9_omode = (p9_omode & !P9_OWRITE) | P9_ORDWR;
p9_debug(P9_DEBUG_CACHE,
"write-only file with writeback enabled, creating w/ O_RDWR\n");
@@ -325,7 +325,7 @@ v9fs_vfs_atomic_open_dotl(struct inode *dir, struct dentry *dentry,
goto out;
file->private_data = ofid;
#ifdef CONFIG_9P_FSCACHE
- if (v9ses->cache == CACHE_FSCACHE) {
+ if (v9ses->cache & CACHE_FSCACHE) {
struct v9fs_inode *v9inode = V9FS_I(inode);
fscache_use_cookie(v9fs_inode_cookie(v9inode),
file->f_mode & FMODE_WRITE);
@@ -403,7 +403,7 @@ static int v9fs_vfs_mkdir_dotl(struct mnt_idmap *idmap,
}
/* instantiate inode and assign the unopened fid to the dentry */
- if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) {
+ if (v9ses->cache & (CACHE_META|CACHE_LOOSE)) {
inode = v9fs_get_new_inode_from_fid(v9ses, fid, dir->i_sb);
if (IS_ERR(inode)) {
err = PTR_ERR(inode);
@@ -451,7 +451,7 @@ v9fs_vfs_getattr_dotl(struct mnt_idmap *idmap,
p9_debug(P9_DEBUG_VFS, "dentry: %p\n", dentry);
v9ses = v9fs_dentry2v9ses(dentry);
- if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) {
+ if (v9ses->cache & (CACHE_META|CACHE_LOOSE)) {
generic_fillattr(&nop_mnt_idmap, inode, stat);
return 0;
} else if (v9ses->cache) {
@@ -538,8 +538,7 @@ int v9fs_vfs_setattr_dotl(struct mnt_idmap *idmap,
{
int retval, use_dentry = 0;
struct inode *inode = d_inode(dentry);
- struct v9fs_inode *v9inode = V9FS_I(inode);
- struct v9fs_session_info *v9ses;
+ struct v9fs_session_info __maybe_unused *v9ses;
struct p9_fid *fid = NULL;
struct p9_iattr_dotl p9attr = {
.uid = INVALID_UID,
@@ -603,8 +602,11 @@ int v9fs_vfs_setattr_dotl(struct mnt_idmap *idmap,
truncate_setsize(inode, iattr->ia_size);
truncate_pagecache(inode, iattr->ia_size);
- if (v9ses->cache == CACHE_FSCACHE)
- fscache_resize_cookie(v9fs_inode_cookie(v9inode), iattr->ia_size);
+#ifdef CONFIG_9P_FSCACHE
+ if (v9ses->cache & CACHE_FSCACHE)
+ fscache_resize_cookie(v9fs_inode_cookie(V9FS_I(inode)),
+ iattr->ia_size);
+#endif
}
v9fs_invalidate_inode_attr(inode);
@@ -732,7 +734,7 @@ v9fs_vfs_symlink_dotl(struct mnt_idmap *idmap, struct inode *dir,
}
v9fs_invalidate_inode_attr(dir);
- if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) {
+ if (v9ses->cache & (CACHE_META|CACHE_LOOSE)) {
/* Now walk from the parent so we can get an unopened fid. */
fid = p9_client_walk(dfid, 1, &name, 1);
if (IS_ERR(fid)) {
@@ -809,7 +811,7 @@ v9fs_vfs_link_dotl(struct dentry *old_dentry, struct inode *dir,
}
v9fs_invalidate_inode_attr(dir);
- if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) {
+ if (v9ses->cache & (CACHE_META|CACHE_LOOSE)) {
/* Get the latest stat info from server. */
struct p9_fid *fid;
@@ -886,7 +888,7 @@ v9fs_vfs_mknod_dotl(struct mnt_idmap *idmap, struct inode *dir,
}
/* instantiate inode and assign the unopened fid to the dentry */
- if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) {
+ if (v9ses->cache & (CACHE_META|CACHE_LOOSE)) {
inode = v9fs_get_new_inode_from_fid(v9ses, fid, dir->i_sb);
if (IS_ERR(inode)) {
err = PTR_ERR(inode);
@@ -971,7 +973,7 @@ int v9fs_refresh_inode_dotl(struct p9_fid *fid, struct inode *inode)
* We don't want to refresh inode->i_size,
* because we may have cached data
*/
- flags = (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) ?
+ flags = (v9ses->cache & CACHE_LOOSE) ?
V9FS_STAT2INODE_KEEP_ISIZE : 0;
v9fs_stat2inode_dotl(st, inode, flags);
out:
@@ -136,7 +136,7 @@ static struct dentry *v9fs_mount(struct file_system_type *fs_type, int flags,
if (retval)
goto release_sb;
- if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE)
+ if (v9ses->cache & (CACHE_META|CACHE_LOOSE))
sb->s_d_op = &v9fs_cached_dentry_operations;
else
sb->s_d_op = &v9fs_dentry_operations;
@@ -277,7 +277,7 @@ static int v9fs_drop_inode(struct inode *inode)
struct v9fs_session_info *v9ses;
v9ses = v9fs_inode2v9ses(inode);
- if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE)
+ if (v9ses->cache & (CACHE_META|CACHE_LOOSE))
return generic_drop_inode(inode);
/*
* in case of non cached mode always drop the