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-rw-r--r--fs/fuse/inode.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index 298c1d4c153403..652c9d5df9730f 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -258,6 +258,7 @@ enum {
OPT_DEFAULT_PERMISSIONS,
OPT_ALLOW_OTHER,
OPT_KERNEL_CACHE,
+ OPT_DIRECT_IO,
OPT_MAX_READ,
OPT_ERR
};
@@ -270,6 +271,7 @@ static match_table_t tokens = {
{OPT_DEFAULT_PERMISSIONS, "default_permissions"},
{OPT_ALLOW_OTHER, "allow_other"},
{OPT_KERNEL_CACHE, "kernel_cache"},
+ {OPT_DIRECT_IO, "direct_io"},
{OPT_MAX_READ, "max_read=%u"},
{OPT_ERR, NULL}
};
@@ -329,6 +331,10 @@ static int parse_fuse_opt(char *opt, struct fuse_mount_data *d)
d->flags |= FUSE_KERNEL_CACHE;
break;
+ case OPT_DIRECT_IO:
+ d->flags |= FUSE_DIRECT_IO;
+ break;
+
case OPT_MAX_READ:
if (match_int(&args[0], &value))
return 0;
@@ -359,6 +365,8 @@ static int fuse_show_options(struct seq_file *m, struct vfsmount *mnt)
seq_puts(m, ",allow_other");
if (fc->flags & FUSE_KERNEL_CACHE)
seq_puts(m, ",kernel_cache");
+ if (fc->flags & FUSE_DIRECT_IO)
+ seq_puts(m, ",direct_io");
if (fc->max_read != ~0)
seq_printf(m, ",max_read=%u", fc->max_read);
return 0;
@@ -489,6 +497,7 @@ static int fuse_fill_super(struct super_block *sb, void *data, int silent)
fc->max_read = d.max_read;
if (fc->max_read / PAGE_CACHE_SIZE < fc->bdi.ra_pages)
fc->bdi.ra_pages = fc->max_read / PAGE_CACHE_SIZE;
+ fc->max_write = FUSE_MAX_IN / 2;
err = -ENOMEM;
root = get_root_inode(sb, d.rootmode);