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add prefix to fs_context->log

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... turning it into struct p_log embedded into fs_context.  Initialize
the prefix with fs_type->name, turning fs_parse() into a trivial
inline wrapper for __fs_parse().

This makes fs_parameter_description->name completely unused.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro
2019-12-21 00:16:49 -05:00
parent c80c98f0dc
commit cc3c0b533a
6 changed files with 23 additions and 27 deletions
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10
fs/fsopen.c
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@@ -25,7 +25,7 @@ static ssize_t fscontext_read(struct file *file,
char __user *_buf, size_t len, loff_t *pos)
{
struct fs_context *fc = file->private_data;
struct fc_log *log = fc->log;
struct fc_log *log = fc->log.log;
unsigned int logsize = ARRAY_SIZE(log->buffer);
ssize_t ret;
char *p;
@@ -97,11 +97,11 @@ static int fscontext_create_fd(struct fs_context *fc, unsigned int o_flags)
static int fscontext_alloc_log(struct fs_context *fc)
{
fc->log = kzalloc(sizeof(*fc->log), GFP_KERNEL);
if (!fc->log)
fc->log.log = kzalloc(sizeof(*fc->log.log), GFP_KERNEL);
if (!fc->log.log)
return -ENOMEM;
refcount_set(&fc->log->usage, 1);
fc->log->owner = fc->fs_type->owner;
refcount_set(&fc->log.log->usage, 1);
fc->log.log->owner = fc->fs_type->owner;
return 0;
}