diff options
Diffstat (limited to 'fs/nilfs2/ioctl.c')
| -rw-r--r-- | fs/nilfs2/ioctl.c | 38 |
1 files changed, 23 insertions, 15 deletions
diff --git a/fs/nilfs2/ioctl.c b/fs/nilfs2/ioctl.c index 5ce06a01c7ec..d9e3990f9589 100644 --- a/fs/nilfs2/ioctl.c +++ b/fs/nilfs2/ioctl.c @@ -37,13 +37,14 @@ static int nilfs_ioctl_wrap_copy(struct the_nilfs *nilfs, struct nilfs_argv *argv, int dir, ssize_t (*dofunc)(struct the_nilfs *, - int, int, + __u64 *, int, void *, size_t, size_t)) { void *buf; size_t maxmembs, total, n; ssize_t nr; int ret, i; + __u64 pos, ppos; if (argv->v_nmembs == 0) return 0; @@ -58,6 +59,7 @@ static int nilfs_ioctl_wrap_copy(struct the_nilfs *nilfs, ret = 0; total = 0; + pos = argv->v_index; for (i = 0; i < argv->v_nmembs; i += n) { n = (argv->v_nmembs - i < maxmembs) ? argv->v_nmembs - i : maxmembs; @@ -68,8 +70,9 @@ static int nilfs_ioctl_wrap_copy(struct the_nilfs *nilfs, ret = -EFAULT; break; } - nr = (*dofunc)(nilfs, argv->v_index + i, argv->v_flags, buf, - argv->v_size, n); + ppos = pos; + nr = (*dofunc)(nilfs, &pos, argv->v_flags, buf, argv->v_size, + n); if (nr < 0) { ret = nr; break; @@ -82,6 +85,10 @@ static int nilfs_ioctl_wrap_copy(struct the_nilfs *nilfs, break; } total += nr; + if ((size_t)nr < n) + break; + if (pos == ppos) + pos += n; } argv->v_nmembs = total; @@ -138,10 +145,10 @@ nilfs_ioctl_delete_checkpoint(struct inode *inode, struct file *filp, } static ssize_t -nilfs_ioctl_do_get_cpinfo(struct the_nilfs *nilfs, int index, int flags, +nilfs_ioctl_do_get_cpinfo(struct the_nilfs *nilfs, __u64 *posp, int flags, void *buf, size_t size, size_t nmembs) { - return nilfs_cpfile_get_cpinfo(nilfs->ns_cpfile, index, flags, buf, + return nilfs_cpfile_get_cpinfo(nilfs->ns_cpfile, posp, flags, buf, nmembs); } @@ -186,10 +193,10 @@ static int nilfs_ioctl_get_cpstat(struct inode *inode, struct file *filp, } static ssize_t -nilfs_ioctl_do_get_suinfo(struct the_nilfs *nilfs, int index, int flags, +nilfs_ioctl_do_get_suinfo(struct the_nilfs *nilfs, __u64 *posp, int flags, void *buf, size_t size, size_t nmembs) { - return nilfs_sufile_get_suinfo(nilfs->ns_sufile, index, buf, nmembs); + return nilfs_sufile_get_suinfo(nilfs->ns_sufile, *posp, buf, nmembs); } static int nilfs_ioctl_get_suinfo(struct inode *inode, struct file *filp, @@ -233,7 +240,7 @@ static int nilfs_ioctl_get_sustat(struct inode *inode, struct file *filp, } static ssize_t -nilfs_ioctl_do_get_vinfo(struct the_nilfs *nilfs, int index, int flags, +nilfs_ioctl_do_get_vinfo(struct the_nilfs *nilfs, __u64 *posp, int flags, void *buf, size_t size, size_t nmembs) { return nilfs_dat_get_vinfo(nilfs_dat_inode(nilfs), buf, nmembs); @@ -262,7 +269,7 @@ static int nilfs_ioctl_get_vinfo(struct inode *inode, struct file *filp, } static ssize_t -nilfs_ioctl_do_get_bdescs(struct the_nilfs *nilfs, int index, int flags, +nilfs_ioctl_do_get_bdescs(struct the_nilfs *nilfs, __u64 *posp, int flags, void *buf, size_t size, size_t nmembs) { struct inode *dat = nilfs_dat_inode(nilfs); @@ -341,7 +348,7 @@ static int nilfs_ioctl_move_inode_block(struct inode *inode, } static ssize_t -nilfs_ioctl_do_move_blocks(struct the_nilfs *nilfs, int index, int flags, +nilfs_ioctl_do_move_blocks(struct the_nilfs *nilfs, __u64 *posp, int flags, void *buf, size_t size, size_t nmembs) { struct inode *inode; @@ -413,7 +420,7 @@ static inline int nilfs_ioctl_move_blocks(struct the_nilfs *nilfs, } static ssize_t -nilfs_ioctl_do_delete_checkpoints(struct the_nilfs *nilfs, int index, +nilfs_ioctl_do_delete_checkpoints(struct the_nilfs *nilfs, __u64 *posp, int flags, void *buf, size_t size, size_t nmembs) { @@ -439,7 +446,7 @@ static inline int nilfs_ioctl_delete_checkpoints(struct the_nilfs *nilfs, } static ssize_t -nilfs_ioctl_do_free_vblocknrs(struct the_nilfs *nilfs, int index, int flags, +nilfs_ioctl_do_free_vblocknrs(struct the_nilfs *nilfs, __u64 *posp, int flags, void *buf, size_t size, size_t nmembs) { int ret = nilfs_dat_freev(nilfs_dat_inode(nilfs), buf, nmembs); @@ -456,8 +463,9 @@ static inline int nilfs_ioctl_free_vblocknrs(struct the_nilfs *nilfs, } static ssize_t -nilfs_ioctl_do_mark_blocks_dirty(struct the_nilfs *nilfs, int index, int flags, - void *buf, size_t size, size_t nmembs) +nilfs_ioctl_do_mark_blocks_dirty(struct the_nilfs *nilfs, __u64 *posp, + int flags, void *buf, size_t size, + size_t nmembs) { struct inode *dat = nilfs_dat_inode(nilfs); struct nilfs_bmap *bmap = NILFS_I(dat)->i_bmap; @@ -506,7 +514,7 @@ static inline int nilfs_ioctl_mark_blocks_dirty(struct the_nilfs *nilfs, } static ssize_t -nilfs_ioctl_do_free_segments(struct the_nilfs *nilfs, int index, int flags, +nilfs_ioctl_do_free_segments(struct the_nilfs *nilfs, __u64 *posp, int flags, void *buf, size_t size, size_t nmembs) { struct nilfs_sb_info *sbi = nilfs_get_writer(nilfs); |