* [PATCH v2 1/3] fuse: on 64-bit store time in d_fsdata directly
@ 2019-08-22 20:00 Khazhismel Kumykov
2019-08-22 20:00 ` [PATCH v2 2/3] fuse: pass gfp flags to fuse_request_alloc Khazhismel Kumykov
` (2 more replies)
0 siblings, 3 replies; 6+ messages in thread
From: Khazhismel Kumykov @ 2019-08-22 20:00 UTC (permalink / raw)
To: miklos; +Cc: linux-fsdevel, linux-kernel, shakeelb, Khazhismel Kumykov
Implements the optimization noted in f75fdf22b0a8 ("fuse: don't use
->d_time"), as the additional memory can be significant. (In particular,
on SLAB configurations this 8-byte alloc becomes 32 bytes). Per-dentry,
this can consume significant memory.
Reviewed-by: Shakeel Butt <shakeelb@google.com>
Signed-off-by: Khazhismel Kumykov <khazhy@google.com>
---
fs/fuse/dir.c | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index dd0f64f7bc06..f9c59a296568 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -24,6 +24,18 @@ static void fuse_advise_use_readdirplus(struct inode *dir)
set_bit(FUSE_I_ADVISE_RDPLUS, &fi->state);
}
+#if BITS_PER_LONG >= 64
+static inline void fuse_dentry_settime(struct dentry *entry, u64 time)
+{
+ entry->d_fsdata = (void *) time;
+}
+
+static inline u64 fuse_dentry_time(struct dentry *entry)
+{
+ return (u64)entry->d_fsdata;
+}
+
+#else
union fuse_dentry {
u64 time;
struct rcu_head rcu;
@@ -38,6 +50,7 @@ static inline u64 fuse_dentry_time(struct dentry *entry)
{
return ((union fuse_dentry *) entry->d_fsdata)->time;
}
+#endif
/*
* FUSE caches dentries and attributes with separate timeout. The
@@ -242,6 +255,7 @@ static int fuse_dentry_revalidate(struct dentry *entry, unsigned int flags)
goto out;
}
+#if BITS_PER_LONG < 64
static int fuse_dentry_init(struct dentry *dentry)
{
dentry->d_fsdata = kzalloc(sizeof(union fuse_dentry), GFP_KERNEL);
@@ -254,16 +268,21 @@ static void fuse_dentry_release(struct dentry *dentry)
kfree_rcu(fd, rcu);
}
+#endif
const struct dentry_operations fuse_dentry_operations = {
.d_revalidate = fuse_dentry_revalidate,
+#if BITS_PER_LONG < 64
.d_init = fuse_dentry_init,
.d_release = fuse_dentry_release,
+#endif
};
const struct dentry_operations fuse_root_dentry_operations = {
+#if BITS_PER_LONG < 64
.d_init = fuse_dentry_init,
.d_release = fuse_dentry_release,
+#endif
};
int fuse_valid_type(int m)
--
2.23.0.187.g17f5b7556c-goog
^ permalink raw reply related [flat|nested] 6+ messages in thread* [PATCH v2 2/3] fuse: pass gfp flags to fuse_request_alloc 2019-08-22 20:00 [PATCH v2 1/3] fuse: on 64-bit store time in d_fsdata directly Khazhismel Kumykov @ 2019-08-22 20:00 ` Khazhismel Kumykov 2019-08-22 21:42 ` Shakeel Butt 2019-08-22 20:00 ` [PATCH v2 3/3] fuse: kmemcg account fs data Khazhismel Kumykov 2019-09-03 21:08 ` [PATCH v2 1/3] fuse: on 64-bit store time in d_fsdata directly Khazhismel Kumykov 2 siblings, 1 reply; 6+ messages in thread From: Khazhismel Kumykov @ 2019-08-22 20:00 UTC (permalink / raw) To: miklos; +Cc: linux-fsdevel, linux-kernel, shakeelb, Khazhismel Kumykov Instead of having a helper per flag Signed-off-by: Khazhismel Kumykov <khazhy@google.com> --- fs/fuse/dev.c | 16 +++------------- fs/fuse/file.c | 6 +++--- fs/fuse/fuse_i.h | 4 +--- fs/fuse/inode.c | 4 ++-- 4 files changed, 9 insertions(+), 21 deletions(-) diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c index ea8237513dfa..c957620ce7ba 100644 --- a/fs/fuse/dev.c +++ b/fs/fuse/dev.c @@ -66,7 +66,7 @@ static struct page **fuse_req_pages_alloc(unsigned int npages, gfp_t flags, return pages; } -static struct fuse_req *__fuse_request_alloc(unsigned npages, gfp_t flags) +struct fuse_req *fuse_request_alloc(unsigned int npages, gfp_t flags) { struct fuse_req *req = kmem_cache_zalloc(fuse_req_cachep, flags); if (req) { @@ -90,18 +90,8 @@ static struct fuse_req *__fuse_request_alloc(unsigned npages, gfp_t flags) } return req; } - -struct fuse_req *fuse_request_alloc(unsigned npages) -{ - return __fuse_request_alloc(npages, GFP_KERNEL); -} EXPORT_SYMBOL_GPL(fuse_request_alloc); -struct fuse_req *fuse_request_alloc_nofs(unsigned npages) -{ - return __fuse_request_alloc(npages, GFP_NOFS); -} - static void fuse_req_pages_free(struct fuse_req *req) { if (req->pages != req->inline_pages) @@ -201,7 +191,7 @@ static struct fuse_req *__fuse_get_req(struct fuse_conn *fc, unsigned npages, if (fc->conn_error) goto out; - req = fuse_request_alloc(npages); + req = fuse_request_alloc(npages, GFP_KERNEL); err = -ENOMEM; if (!req) { if (for_background) @@ -310,7 +300,7 @@ struct fuse_req *fuse_get_req_nofail_nopages(struct fuse_conn *fc, wait_event(fc->blocked_waitq, fc->initialized); /* Matches smp_wmb() in fuse_set_initialized() */ smp_rmb(); - req = fuse_request_alloc(0); + req = fuse_request_alloc(0, GFP_KERNEL); if (!req) req = get_reserved_req(fc, file); diff --git a/fs/fuse/file.c b/fs/fuse/file.c index 5ae2828beb00..572d8347ebcb 100644 --- a/fs/fuse/file.c +++ b/fs/fuse/file.c @@ -50,7 +50,7 @@ struct fuse_file *fuse_file_alloc(struct fuse_conn *fc) return NULL; ff->fc = fc; - ff->reserved_req = fuse_request_alloc(0); + ff->reserved_req = fuse_request_alloc(0, GFP_KERNEL); if (unlikely(!ff->reserved_req)) { kfree(ff); return NULL; @@ -1703,7 +1703,7 @@ static int fuse_writepage_locked(struct page *page) set_page_writeback(page); - req = fuse_request_alloc_nofs(1); + req = fuse_request_alloc(1, GFP_NOFS); if (!req) goto err; @@ -1923,7 +1923,7 @@ static int fuse_writepages_fill(struct page *page, struct fuse_inode *fi = get_fuse_inode(inode); err = -ENOMEM; - req = fuse_request_alloc_nofs(FUSE_REQ_INLINE_PAGES); + req = fuse_request_alloc(FUSE_REQ_INLINE_PAGES, GFP_NOFS); if (!req) { __free_page(tmp_page); goto out_unlock; diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h index 24dbca777775..8080a51096e9 100644 --- a/fs/fuse/fuse_i.h +++ b/fs/fuse/fuse_i.h @@ -902,9 +902,7 @@ void __exit fuse_ctl_cleanup(void); /** * Allocate a request */ -struct fuse_req *fuse_request_alloc(unsigned npages); - -struct fuse_req *fuse_request_alloc_nofs(unsigned npages); +struct fuse_req *fuse_request_alloc(unsigned int npages, gfp_t flags); bool fuse_req_realloc_pages(struct fuse_conn *fc, struct fuse_req *req, gfp_t flags); diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c index 4bb885b0f032..5afd1872b8b1 100644 --- a/fs/fuse/inode.c +++ b/fs/fuse/inode.c @@ -1177,13 +1177,13 @@ static int fuse_fill_super(struct super_block *sb, void *data, int silent) /* Root dentry doesn't have .d_revalidate */ sb->s_d_op = &fuse_dentry_operations; - init_req = fuse_request_alloc(0); + init_req = fuse_request_alloc(0, GFP_KERNEL); if (!init_req) goto err_put_root; __set_bit(FR_BACKGROUND, &init_req->flags); if (is_bdev) { - fc->destroy_req = fuse_request_alloc(0); + fc->destroy_req = fuse_request_alloc(0, GFP_KERNEL); if (!fc->destroy_req) goto err_free_init_req; } -- 2.23.0.187.g17f5b7556c-goog ^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH v2 2/3] fuse: pass gfp flags to fuse_request_alloc 2019-08-22 20:00 ` [PATCH v2 2/3] fuse: pass gfp flags to fuse_request_alloc Khazhismel Kumykov @ 2019-08-22 21:42 ` Shakeel Butt 0 siblings, 0 replies; 6+ messages in thread From: Shakeel Butt @ 2019-08-22 21:42 UTC (permalink / raw) To: Khazhismel Kumykov; +Cc: miklos, linux-fsdevel, LKML On Thu, Aug 22, 2019 at 1:00 PM Khazhismel Kumykov <khazhy@google.com> wrote: > > Instead of having a helper per flag > > Signed-off-by: Khazhismel Kumykov <khazhy@google.com> Reviewed-by: Shakeel Butt <shakeelb@google.com> > --- > fs/fuse/dev.c | 16 +++------------- > fs/fuse/file.c | 6 +++--- > fs/fuse/fuse_i.h | 4 +--- > fs/fuse/inode.c | 4 ++-- > 4 files changed, 9 insertions(+), 21 deletions(-) > > diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c > index ea8237513dfa..c957620ce7ba 100644 > --- a/fs/fuse/dev.c > +++ b/fs/fuse/dev.c > @@ -66,7 +66,7 @@ static struct page **fuse_req_pages_alloc(unsigned int npages, gfp_t flags, > return pages; > } > > -static struct fuse_req *__fuse_request_alloc(unsigned npages, gfp_t flags) > +struct fuse_req *fuse_request_alloc(unsigned int npages, gfp_t flags) > { > struct fuse_req *req = kmem_cache_zalloc(fuse_req_cachep, flags); > if (req) { > @@ -90,18 +90,8 @@ static struct fuse_req *__fuse_request_alloc(unsigned npages, gfp_t flags) > } > return req; > } > - > -struct fuse_req *fuse_request_alloc(unsigned npages) > -{ > - return __fuse_request_alloc(npages, GFP_KERNEL); > -} > EXPORT_SYMBOL_GPL(fuse_request_alloc); > > -struct fuse_req *fuse_request_alloc_nofs(unsigned npages) > -{ > - return __fuse_request_alloc(npages, GFP_NOFS); > -} > - > static void fuse_req_pages_free(struct fuse_req *req) > { > if (req->pages != req->inline_pages) > @@ -201,7 +191,7 @@ static struct fuse_req *__fuse_get_req(struct fuse_conn *fc, unsigned npages, > if (fc->conn_error) > goto out; > > - req = fuse_request_alloc(npages); > + req = fuse_request_alloc(npages, GFP_KERNEL); > err = -ENOMEM; > if (!req) { > if (for_background) > @@ -310,7 +300,7 @@ struct fuse_req *fuse_get_req_nofail_nopages(struct fuse_conn *fc, > wait_event(fc->blocked_waitq, fc->initialized); > /* Matches smp_wmb() in fuse_set_initialized() */ > smp_rmb(); > - req = fuse_request_alloc(0); > + req = fuse_request_alloc(0, GFP_KERNEL); > if (!req) > req = get_reserved_req(fc, file); > > diff --git a/fs/fuse/file.c b/fs/fuse/file.c > index 5ae2828beb00..572d8347ebcb 100644 > --- a/fs/fuse/file.c > +++ b/fs/fuse/file.c > @@ -50,7 +50,7 @@ struct fuse_file *fuse_file_alloc(struct fuse_conn *fc) > return NULL; > > ff->fc = fc; > - ff->reserved_req = fuse_request_alloc(0); > + ff->reserved_req = fuse_request_alloc(0, GFP_KERNEL); > if (unlikely(!ff->reserved_req)) { > kfree(ff); > return NULL; > @@ -1703,7 +1703,7 @@ static int fuse_writepage_locked(struct page *page) > > set_page_writeback(page); > > - req = fuse_request_alloc_nofs(1); > + req = fuse_request_alloc(1, GFP_NOFS); > if (!req) > goto err; > > @@ -1923,7 +1923,7 @@ static int fuse_writepages_fill(struct page *page, > struct fuse_inode *fi = get_fuse_inode(inode); > > err = -ENOMEM; > - req = fuse_request_alloc_nofs(FUSE_REQ_INLINE_PAGES); > + req = fuse_request_alloc(FUSE_REQ_INLINE_PAGES, GFP_NOFS); > if (!req) { > __free_page(tmp_page); > goto out_unlock; > diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h > index 24dbca777775..8080a51096e9 100644 > --- a/fs/fuse/fuse_i.h > +++ b/fs/fuse/fuse_i.h > @@ -902,9 +902,7 @@ void __exit fuse_ctl_cleanup(void); > /** > * Allocate a request > */ > -struct fuse_req *fuse_request_alloc(unsigned npages); > - > -struct fuse_req *fuse_request_alloc_nofs(unsigned npages); > +struct fuse_req *fuse_request_alloc(unsigned int npages, gfp_t flags); > > bool fuse_req_realloc_pages(struct fuse_conn *fc, struct fuse_req *req, > gfp_t flags); > diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c > index 4bb885b0f032..5afd1872b8b1 100644 > --- a/fs/fuse/inode.c > +++ b/fs/fuse/inode.c > @@ -1177,13 +1177,13 @@ static int fuse_fill_super(struct super_block *sb, void *data, int silent) > /* Root dentry doesn't have .d_revalidate */ > sb->s_d_op = &fuse_dentry_operations; > > - init_req = fuse_request_alloc(0); > + init_req = fuse_request_alloc(0, GFP_KERNEL); > if (!init_req) > goto err_put_root; > __set_bit(FR_BACKGROUND, &init_req->flags); > > if (is_bdev) { > - fc->destroy_req = fuse_request_alloc(0); > + fc->destroy_req = fuse_request_alloc(0, GFP_KERNEL); > if (!fc->destroy_req) > goto err_free_init_req; > } > -- > 2.23.0.187.g17f5b7556c-goog > ^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH v2 3/3] fuse: kmemcg account fs data 2019-08-22 20:00 [PATCH v2 1/3] fuse: on 64-bit store time in d_fsdata directly Khazhismel Kumykov 2019-08-22 20:00 ` [PATCH v2 2/3] fuse: pass gfp flags to fuse_request_alloc Khazhismel Kumykov @ 2019-08-22 20:00 ` Khazhismel Kumykov 2019-08-22 21:43 ` Shakeel Butt 2019-09-03 21:08 ` [PATCH v2 1/3] fuse: on 64-bit store time in d_fsdata directly Khazhismel Kumykov 2 siblings, 1 reply; 6+ messages in thread From: Khazhismel Kumykov @ 2019-08-22 20:00 UTC (permalink / raw) To: miklos; +Cc: linux-fsdevel, linux-kernel, shakeelb, Khazhismel Kumykov account per-file, dentry, and inode data accounts the per-file reserved request, adding new fuse_request_alloc_account() blockdev/superblock and temporary per-request data was left alone, as this usually isn't accounted Signed-off-by: Khazhismel Kumykov <khazhy@google.com> --- fs/fuse/dir.c | 3 ++- fs/fuse/file.c | 4 ++-- fs/fuse/inode.c | 3 ++- 3 files changed, 6 insertions(+), 4 deletions(-) diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c index f9c59a296568..2013e1222de7 100644 --- a/fs/fuse/dir.c +++ b/fs/fuse/dir.c @@ -258,7 +258,8 @@ static int fuse_dentry_revalidate(struct dentry *entry, unsigned int flags) #if BITS_PER_LONG < 64 static int fuse_dentry_init(struct dentry *dentry) { - dentry->d_fsdata = kzalloc(sizeof(union fuse_dentry), GFP_KERNEL); + dentry->d_fsdata = kzalloc(sizeof(union fuse_dentry), + GFP_KERNEL_ACCOUNT | __GFP_RECLAIMABLE); return dentry->d_fsdata ? 0 : -ENOMEM; } diff --git a/fs/fuse/file.c b/fs/fuse/file.c index 572d8347ebcb..ae8c8016bb8e 100644 --- a/fs/fuse/file.c +++ b/fs/fuse/file.c @@ -45,12 +45,12 @@ struct fuse_file *fuse_file_alloc(struct fuse_conn *fc) { struct fuse_file *ff; - ff = kzalloc(sizeof(struct fuse_file), GFP_KERNEL); + ff = kzalloc(sizeof(struct fuse_file), GFP_KERNEL_ACCOUNT); if (unlikely(!ff)) return NULL; ff->fc = fc; - ff->reserved_req = fuse_request_alloc(0, GFP_KERNEL); + ff->reserved_req = fuse_request_alloc(0, GFP_KERNEL_ACCOUNT); if (unlikely(!ff->reserved_req)) { kfree(ff); return NULL; diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c index 5afd1872b8b1..ad92e93eaddd 100644 --- a/fs/fuse/inode.c +++ b/fs/fuse/inode.c @@ -76,7 +76,8 @@ struct fuse_mount_data { struct fuse_forget_link *fuse_alloc_forget(void) { - return kzalloc(sizeof(struct fuse_forget_link), GFP_KERNEL); + return kzalloc(sizeof(struct fuse_forget_link), + GFP_KERNEL_ACCOUNT | __GFP_RECLAIMABLE); } static struct inode *fuse_alloc_inode(struct super_block *sb) -- 2.23.0.187.g17f5b7556c-goog ^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH v2 3/3] fuse: kmemcg account fs data 2019-08-22 20:00 ` [PATCH v2 3/3] fuse: kmemcg account fs data Khazhismel Kumykov @ 2019-08-22 21:43 ` Shakeel Butt 0 siblings, 0 replies; 6+ messages in thread From: Shakeel Butt @ 2019-08-22 21:43 UTC (permalink / raw) To: Khazhismel Kumykov; +Cc: miklos, linux-fsdevel, LKML On Thu, Aug 22, 2019 at 1:00 PM Khazhismel Kumykov <khazhy@google.com> wrote: > > account per-file, dentry, and inode data > > accounts the per-file reserved request, adding new > fuse_request_alloc_account() > > blockdev/superblock and temporary per-request data was left alone, as > this usually isn't accounted > > Signed-off-by: Khazhismel Kumykov <khazhy@google.com> Reviewed-by: Shakeel Butt <shakeelb@google.com> > --- > fs/fuse/dir.c | 3 ++- > fs/fuse/file.c | 4 ++-- > fs/fuse/inode.c | 3 ++- > 3 files changed, 6 insertions(+), 4 deletions(-) > > diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c > index f9c59a296568..2013e1222de7 100644 > --- a/fs/fuse/dir.c > +++ b/fs/fuse/dir.c > @@ -258,7 +258,8 @@ static int fuse_dentry_revalidate(struct dentry *entry, unsigned int flags) > #if BITS_PER_LONG < 64 > static int fuse_dentry_init(struct dentry *dentry) > { > - dentry->d_fsdata = kzalloc(sizeof(union fuse_dentry), GFP_KERNEL); > + dentry->d_fsdata = kzalloc(sizeof(union fuse_dentry), > + GFP_KERNEL_ACCOUNT | __GFP_RECLAIMABLE); > > return dentry->d_fsdata ? 0 : -ENOMEM; > } > diff --git a/fs/fuse/file.c b/fs/fuse/file.c > index 572d8347ebcb..ae8c8016bb8e 100644 > --- a/fs/fuse/file.c > +++ b/fs/fuse/file.c > @@ -45,12 +45,12 @@ struct fuse_file *fuse_file_alloc(struct fuse_conn *fc) > { > struct fuse_file *ff; > > - ff = kzalloc(sizeof(struct fuse_file), GFP_KERNEL); > + ff = kzalloc(sizeof(struct fuse_file), GFP_KERNEL_ACCOUNT); > if (unlikely(!ff)) > return NULL; > > ff->fc = fc; > - ff->reserved_req = fuse_request_alloc(0, GFP_KERNEL); > + ff->reserved_req = fuse_request_alloc(0, GFP_KERNEL_ACCOUNT); > if (unlikely(!ff->reserved_req)) { > kfree(ff); > return NULL; > diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c > index 5afd1872b8b1..ad92e93eaddd 100644 > --- a/fs/fuse/inode.c > +++ b/fs/fuse/inode.c > @@ -76,7 +76,8 @@ struct fuse_mount_data { > > struct fuse_forget_link *fuse_alloc_forget(void) > { > - return kzalloc(sizeof(struct fuse_forget_link), GFP_KERNEL); > + return kzalloc(sizeof(struct fuse_forget_link), > + GFP_KERNEL_ACCOUNT | __GFP_RECLAIMABLE); > } > > static struct inode *fuse_alloc_inode(struct super_block *sb) > -- > 2.23.0.187.g17f5b7556c-goog > ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH v2 1/3] fuse: on 64-bit store time in d_fsdata directly 2019-08-22 20:00 [PATCH v2 1/3] fuse: on 64-bit store time in d_fsdata directly Khazhismel Kumykov 2019-08-22 20:00 ` [PATCH v2 2/3] fuse: pass gfp flags to fuse_request_alloc Khazhismel Kumykov 2019-08-22 20:00 ` [PATCH v2 3/3] fuse: kmemcg account fs data Khazhismel Kumykov @ 2019-09-03 21:08 ` Khazhismel Kumykov 2 siblings, 0 replies; 6+ messages in thread From: Khazhismel Kumykov @ 2019-09-03 21:08 UTC (permalink / raw) To: miklos; +Cc: linux-fsdevel, Linux Kernel Mailing List, Shakeel Butt [-- Attachment #1: Type: text/plain, Size: 539 bytes --] On Thu, Aug 22, 2019 at 1:00 PM Khazhismel Kumykov <khazhy@google.com> wrote: > > Implements the optimization noted in f75fdf22b0a8 ("fuse: don't use > ->d_time"), as the additional memory can be significant. (In particular, > on SLAB configurations this 8-byte alloc becomes 32 bytes). Per-dentry, > this can consume significant memory. > > Reviewed-by: Shakeel Butt <shakeelb@google.com> > Signed-off-by: Khazhismel Kumykov <khazhy@google.com> > --- > fs/fuse/dir.c | 19 +++++++++++++++++++ > 1 file changed, 19 insertions(+) > ping? [-- Attachment #2: S/MIME Cryptographic Signature --] [-- Type: application/pkcs7-signature, Size: 4843 bytes --] ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2019-09-03 21:08 UTC | newest] Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2019-08-22 20:00 [PATCH v2 1/3] fuse: on 64-bit store time in d_fsdata directly Khazhismel Kumykov 2019-08-22 20:00 ` [PATCH v2 2/3] fuse: pass gfp flags to fuse_request_alloc Khazhismel Kumykov 2019-08-22 21:42 ` Shakeel Butt 2019-08-22 20:00 ` [PATCH v2 3/3] fuse: kmemcg account fs data Khazhismel Kumykov 2019-08-22 21:43 ` Shakeel Butt 2019-09-03 21:08 ` [PATCH v2 1/3] fuse: on 64-bit store time in d_fsdata directly Khazhismel Kumykov
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