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bcachefs: Add flags to indicate if inode opts were inherited or explicitly set

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Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2018-12-13 08:32:11 -05:00 committed by Kent Overstreet
parent 0f5254aa98
commit 721d4ad8eb
3 changed files with 22 additions and 2 deletions
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11
fs/bcachefs/bcachefs_format.h
View file

@ -714,7 +714,8 @@ struct bch_inode_generation {
x(bi_promote_target, 16) \
x(bi_foreground_target, 16) \
x(bi_background_target, 16) \
x(bi_erasure_code, 16)
x(bi_erasure_code, 16) \
x(bi_fields_set, 16)
/* subset of BCH_INODE_FIELDS */
#define BCH_INODE_OPTS() \
@ -728,6 +729,14 @@ struct bch_inode_generation {
x(background_target, 16) \
x(erasure_code, 16)
enum inode_opt_id {
#define x(name, ...) \
Inode_opt_##name,
BCH_INODE_OPTS()
#undef x
Inode_opt_nr,
};
enum {
/*
* User flags (get/settable with FS_IOC_*FLAGS, correspond to FS_*_FL

9
fs/bcachefs/fs-ioctl.c
View file

@ -122,7 +122,14 @@ static int fssetxattr_inode_update_fn(struct bch_inode_info *inode,
{
struct flags_set *s = p;
bi->bi_project = s->projid;
if (s->projid != bi->bi_project) {
if (s->projid)
bi->bi_fields_set |= 1U << Inode_opt_project;
else
bi->bi_fields_set &= ~(1U << Inode_opt_project);
bi->bi_project = s->projid;
}
return bch2_inode_flags_set(inode, bi, p);
}

4
fs/bcachefs/inode.h
View file

@ -80,6 +80,10 @@ static inline void __bch2_inode_opt_set(struct bch_inode_unpacked *inode,
#define x(_name, ...) \
case Opt_##_name: \
inode->bi_##_name = v; \
if (v) \
inode->bi_fields_set |= 1U << Inode_opt_##_name;\
else \
inode->bi_fields_set &= ~(1U << Inode_opt_##_name);\
break;
BCH_INODE_OPTS()
#undef x