search for: fs_ioc_setflag

Makes btrfs_ioctl_setflags return -ENOSPC and other errors when necessary. Signed-off-by: Sean Bartell <wingedtachikoma@gmail.com> --- I ran chattr -R on a full FS and btrfs crashed. This overlaps with the patch series being worked on by Jeff Mahoney. fs/btrfs/ioctl.c | 17 ++++++++++++----- 1 files changed, 12 insertions(+), 5 deletions(-) diff --git a/fs/btrfs/ioctl.c

...t64_t bytes, int type, if (ctx.fd == -1) return -errno; + if (flags & VHD_FLAG_CREAT_NOCOW) { + flags &= ~VHD_FLAG_CREAT_NOCOW; +#ifdef __linux__ + /* Set NOCOW flag to solve performance issue on fs like btrfs. + * This is an optimisation. The FS_IOC_SETFLAGS ioctl return value will + * be ignored since any failure of this operation should not block the + * left work. + */ + if (ioctl(ctx.fd, FS_IOC_GETFLAGS, &attr) == 0) { + attr |= FS_NOCOW_FL; + ioctl(ctx.fd, FS_IOC_SET...

...ng down */ +#define XFS_FSOP_GOING_FLAGS_LOGFLUSH 0x1 /* flush log but not data */ +#define XFS_FSOP_GOING_FLAGS_NOLOGFLUSH 0x2 /* don't flush log nor data */ + +/* + * ioctl commands that are used by Linux filesystems + */ +#define XFS_IOC_GETXFLAGS FS_IOC_GETFLAGS +#define XFS_IOC_SETXFLAGS FS_IOC_SETFLAGS +#define XFS_IOC_GETVERSION FS_IOC_GETVERSION + +/* + * ioctl commands that replace IRIX fcntl()'s + * For 'documentation' purposed more than anything else, + * the "cmd #" field reflects the IRIX fcntl number. + */ +#define XFS_IOC_ALLOCSP _IOW ('X', 10, struct xfs_...