diff options
Diffstat (limited to 'fs/fuse/inode.c')
| -rw-r--r-- | fs/fuse/inode.c | 31 |
1 files changed, 24 insertions, 7 deletions
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c index 1ecc46dff93e..8b89e3ba7df3 100644 --- a/fs/fuse/inode.c +++ b/fs/fuse/inode.c @@ -164,7 +164,7 @@ static ino_t fuse_squash_ino(u64 ino64) } void fuse_change_attributes_common(struct inode *inode, struct fuse_attr *attr, - u64 attr_valid) + u64 attr_valid, u32 cache_mask) { struct fuse_conn *fc = get_fuse_conn(inode); struct fuse_inode *fi = get_fuse_inode(inode); @@ -184,9 +184,11 @@ void fuse_change_attributes_common(struct inode *inode, struct fuse_attr *attr, inode->i_atime.tv_sec = attr->atime; inode->i_atime.tv_nsec = attr->atimensec; /* mtime from server may be stale due to local buffered write */ - if (!fc->writeback_cache || !S_ISREG(inode->i_mode)) { + if (!(cache_mask & STATX_MTIME)) { inode->i_mtime.tv_sec = attr->mtime; inode->i_mtime.tv_nsec = attr->mtimensec; + } + if (!(cache_mask & STATX_CTIME)) { inode->i_ctime.tv_sec = attr->ctime; inode->i_ctime.tv_nsec = attr->ctimensec; } @@ -218,12 +220,22 @@ void fuse_change_attributes_common(struct inode *inode, struct fuse_attr *attr, inode->i_flags &= ~S_NOSEC; } +u32 fuse_get_cache_mask(struct inode *inode) +{ + struct fuse_conn *fc = get_fuse_conn(inode); + + if (!fc->writeback_cache || !S_ISREG(inode->i_mode)) + return 0; + + return STATX_MTIME | STATX_CTIME | STATX_SIZE; +} + void fuse_change_attributes(struct inode *inode, struct fuse_attr *attr, u64 attr_valid, u64 attr_version) { struct fuse_conn *fc = get_fuse_conn(inode); struct fuse_inode *fi = get_fuse_inode(inode); - bool is_wb = fc->writeback_cache && S_ISREG(inode->i_mode); + u32 cache_mask; loff_t oldsize; struct timespec64 old_mtime; @@ -233,10 +245,15 @@ void fuse_change_attributes(struct inode *inode, struct fuse_attr *attr, * may update i_size. In these cases trust the cached value in the * inode. */ - if (is_wb) { + cache_mask = fuse_get_cache_mask(inode); + if (cache_mask & STATX_SIZE) attr->size = i_size_read(inode); + + if (cache_mask & STATX_MTIME) { attr->mtime = inode->i_mtime.tv_sec; attr->mtimensec = inode->i_mtime.tv_nsec; + } + if (cache_mask & STATX_CTIME) { attr->ctime = inode->i_ctime.tv_sec; attr->ctimensec = inode->i_ctime.tv_nsec; } @@ -248,7 +265,7 @@ void fuse_change_attributes(struct inode *inode, struct fuse_attr *attr, } old_mtime = inode->i_mtime; - fuse_change_attributes_common(inode, attr, attr_valid); + fuse_change_attributes_common(inode, attr, attr_valid, cache_mask); oldsize = inode->i_size; /* @@ -256,11 +273,11 @@ void fuse_change_attributes(struct inode *inode, struct fuse_attr *attr, * extend local i_size without keeping userspace server in sync. So, * attr->size coming from server can be stale. We cannot trust it. */ - if (!is_wb) + if (!(cache_mask & STATX_SIZE)) i_size_write(inode, attr->size); spin_unlock(&fi->lock); - if (!is_wb && S_ISREG(inode->i_mode)) { + if (!cache_mask && S_ISREG(inode->i_mode)) { bool inval = false; if (oldsize != attr->size) { |