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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-06-05 10:11:11 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-06-05 10:11:11 -0700 |
| commit | f9ba7179ce91fb77b2adf6eaab3676ab3a1f5a15 (patch) | |
| tree | 2d02e7a4fd78083b78749d0c9c7466f0eb8e6f97 /fs/fuse/inode.c | |
| parent | 0b3e9f3f21c42d064f5f4088df4088e3d55755eb (diff) | |
| parent | 203627bbc90377c509e32450c67c5d957ba2d989 (diff) | |
| download | linux-f9ba7179ce91fb77b2adf6eaab3676ab3a1f5a15.tar.bz2 | |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
Pull fuse updates from Miklos Szeredi.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
fuse: fix blksize calculation
fuse: fix stat call on 32 bit platforms
fuse: optimize fallocate on permanent failure
fuse: add FALLOCATE operation
fuse: Convert to kstrtoul_from_user
Diffstat (limited to 'fs/fuse/inode.c')
| -rw-r--r-- | fs/fuse/inode.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c index 42678a33b7bb..1cd61652018c 100644 --- a/fs/fuse/inode.c +++ b/fs/fuse/inode.c @@ -91,6 +91,7 @@ static struct inode *fuse_alloc_inode(struct super_block *sb) fi->nlookup = 0; fi->attr_version = 0; fi->writectr = 0; + fi->orig_ino = 0; INIT_LIST_HEAD(&fi->write_files); INIT_LIST_HEAD(&fi->queued_writes); INIT_LIST_HEAD(&fi->writepages); @@ -139,6 +140,18 @@ static int fuse_remount_fs(struct super_block *sb, int *flags, char *data) return 0; } +/* + * ino_t is 32-bits on 32-bit arch. We have to squash the 64-bit value down + * so that it will fit. + */ +static ino_t fuse_squash_ino(u64 ino64) +{ + ino_t ino = (ino_t) ino64; + if (sizeof(ino_t) < sizeof(u64)) + ino ^= ino64 >> (sizeof(u64) - sizeof(ino_t)) * 8; + return ino; +} + void fuse_change_attributes_common(struct inode *inode, struct fuse_attr *attr, u64 attr_valid) { @@ -148,7 +161,7 @@ void fuse_change_attributes_common(struct inode *inode, struct fuse_attr *attr, fi->attr_version = ++fc->attr_version; fi->i_time = attr_valid; - inode->i_ino = attr->ino; + inode->i_ino = fuse_squash_ino(attr->ino); inode->i_mode = (inode->i_mode & S_IFMT) | (attr->mode & 07777); set_nlink(inode, attr->nlink); inode->i_uid = attr->uid; @@ -174,6 +187,8 @@ void fuse_change_attributes_common(struct inode *inode, struct fuse_attr *attr, fi->orig_i_mode = inode->i_mode; if (!(fc->flags & FUSE_DEFAULT_PERMISSIONS)) inode->i_mode &= ~S_ISVTX; + + fi->orig_ino = attr->ino; } void fuse_change_attributes(struct inode *inode, struct fuse_attr *attr, |