search for: out_fput

Hi, The following series of patches implements in btrfs an ioctl to do out-of-band deduplication of file extents. To be clear, this means that the file system is mounted and running, but the dedupe is not done during file writes, but after the fact when some userspace software initiates a dedupe. The primary patch is loosely based off of one sent by Josef Bacik back in January, 2011.

...ed (provided - * they don''t overlap)? */ /* the destination must be opened for writing */ @@ -2247,8 +2245,6 @@ static noinline long btrfs_ioctl_clone(struct file *file, unsigned long srcfd, src = src_file->f_dentry->d_inode; ret = -EINVAL; - if (src == inode) - goto out_fput; /* the src must be open for reading */ if (!(src_file->f_mode & FMODE_READ)) @@ -2282,9 +2278,11 @@ static noinline long btrfs_ioctl_clone(struct file *file, unsigned long srcfd, if (inode < src) { mutex_lock_nested(&inode->i_mutex, I_MUTEX_PARENT); mutex_lock_nested...

It''s been nearly a year since the patches needed to implement a reflinked copy between subvolumes have been posted (http://permalink.gmane.org/gmane.comp.file-systems.btrfs/9865 ) and I still get "Invalid cross-device link" error with Linux 3.2.4 while I try to do a cp --reflink between subvolumes. This is a *very* useful feature to have (think offline file-level

...6 +2815,15 @@ asmlinkage long compat_sys_ioctl(unsigne case FIOQSIZE: break; + case F_IOC_RESVSP_32: + case F_IOC_RESVSP64_32: +#ifdef BROKEN_X86_ALIGNMENT + arg = copy_to_space_resv(arg); + cmd = _NATIVE_IOC(cmd, struct space_resv); +#endif + error = ioctl_preallocate(filp, arg); + goto out_fput; + case FIBMAP: case FIGETBSZ: case FIONREAD: Index: xfs/fs/ioctl.c =================================================================== --- xfs.orig/fs/ioctl.c 2009-01-21 21:03:27.321448363 +0100 +++ xfs/fs/ioctl.c 2009-01-27 20:36:59.189424147 +0100 @@ -15,6 +15,7 @@ #include <linux/uacc...

Hello, This is the second attempt to bring in cross subvolume reflinks into btrfs. The first attempt was NAKed due to missing vfs mount checks and a clear description of what btrfs subvolumes are and probably also why cross subvolume reflinks are ok in the case of btrfs. This version of the patch comes from David and is in SUSE kernels since a long time, so it is tested and working. The patch

...&& i > 0) - i--; - - return ioctl_pointer[i] == xcmd; -#else - return 0; -#endif -} - COMPAT_SYSCALL_DEFINE3(ioctl, unsigned int, fd, unsigned int, cmd, compat_ulong_t, arg32) { @@ -216,19 +118,9 @@ COMPAT_SYSCALL_DEFINE3(ioctl, unsigned int, fd, unsigned int, cmd, goto out_fput; } - if (!f.file->f_op->unlocked_ioctl) - goto do_ioctl; - break; - } - - if (compat_ioctl_check_table(XFORM(cmd))) - goto found_handler; - - error = do_ioctl_trans(cmd, arg, f.file); - if (error == -ENOIOCTLCMD) error = -ENOTTY; - - goto out_fput; + goto out_fput; + } found...

Hi Jens, James and Martin, This series concludes the work I did for linux-5.5 on the compat_ioctl() cleanup, killing off fs/compat_ioctl.c and block/compat_ioctl.c by moving everything into drivers. Overall this would be a reduction both in complexity and line count, but as I'm also adding documentation the overall number of lines increases in the end. My plan was originally to keep the

...&& i > 0) - i--; - - return ioctl_pointer[i] == xcmd; -#else - return 0; -#endif -} - COMPAT_SYSCALL_DEFINE3(ioctl, unsigned int, fd, unsigned int, cmd, compat_ulong_t, arg32) { @@ -216,19 +118,9 @@ COMPAT_SYSCALL_DEFINE3(ioctl, unsigned int, fd, unsigned int, cmd, goto out_fput; } - if (!f.file->f_op->unlocked_ioctl) - goto do_ioctl; - break; - } - - if (compat_ioctl_check_table(XFORM(cmd))) - goto found_handler; - - error = do_ioctl_trans(cmd, arg, f.file); - if (error == -ENOIOCTLCMD) error = -ENOTTY; - - goto out_fput; + goto out_fput; + } found...

Hi all, Just a quick question but can''t find an obvious answer. Can I create/convert a existing (btrfs) directory into a subvolume? It would be very helpful when transferring ''partitions'' into btrfs. I found a similar question way back in google, but that site is down now generally. Thanks in advance. -- To unsubscribe from this list: send the line