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/linux-5.19.10/Documentation/filesystems/
Dfiemap.rst7 The fiemap ioctl is an efficient method for userspace to get file
8 extent mappings. Instead of block-by-block mapping (such as bmap), fiemap
15 A fiemap request is encoded within struct fiemap::
17 struct fiemap {
44 fiemap interface to grow in the future but without losing
68 which userspace must allocate along with the fiemap structure. The
102 the file so that the process making fiemap calls can determine when no
123 (via fiemap->fm_length).
182 File systems wishing to support fiemap must implement a ->fiemap callback on
183 their inode_operations structure. The fs ->fiemap call is responsible for
[all …]
Dindex.rst29 fiemap
Dlocking.rst77 int (*fiemap)(struct inode *, struct fiemap_extent_info *, u64 start, u64 len);
109 fiemap: no
/linux-5.19.10/fs/
Dioctl.c199 static int ioctl_fiemap(struct file *filp, struct fiemap __user *ufiemap) in ioctl_fiemap()
201 struct fiemap fiemap; in ioctl_fiemap() local
206 if (!inode->i_op->fiemap) in ioctl_fiemap()
209 if (copy_from_user(&fiemap, ufiemap, sizeof(fiemap))) in ioctl_fiemap()
212 if (fiemap.fm_extent_count > FIEMAP_MAX_EXTENTS) in ioctl_fiemap()
215 fieinfo.fi_flags = fiemap.fm_flags; in ioctl_fiemap()
216 fieinfo.fi_extents_max = fiemap.fm_extent_count; in ioctl_fiemap()
219 error = inode->i_op->fiemap(inode, &fieinfo, fiemap.fm_start, in ioctl_fiemap()
220 fiemap.fm_length); in ioctl_fiemap()
222 fiemap.fm_flags = fieinfo.fi_flags; in ioctl_fiemap()
[all …]
Dbad_inode.c181 .fiemap = bad_inode_fiemap,
/linux-5.19.10/fs/ext4/
Dioctl.c1002 struct fiemap fiemap; in ext4_ioctl_get_es_cache() local
1003 struct fiemap __user *ufiemap = (struct fiemap __user *) arg; in ext4_ioctl_get_es_cache()
1008 if (copy_from_user(&fiemap, ufiemap, sizeof(fiemap))) in ext4_ioctl_get_es_cache()
1011 if (fiemap.fm_extent_count > FIEMAP_MAX_EXTENTS) in ext4_ioctl_get_es_cache()
1014 fieinfo.fi_flags = fiemap.fm_flags; in ext4_ioctl_get_es_cache()
1015 fieinfo.fi_extents_max = fiemap.fm_extent_count; in ext4_ioctl_get_es_cache()
1018 error = ext4_get_es_cache(inode, &fieinfo, fiemap.fm_start, in ext4_ioctl_get_es_cache()
1019 fiemap.fm_length); in ext4_ioctl_get_es_cache()
1020 fiemap.fm_flags = fieinfo.fi_flags; in ext4_ioctl_get_es_cache()
1021 fiemap.fm_mapped_extents = fieinfo.fi_extents_mapped; in ext4_ioctl_get_es_cache()
[all …]
Dfile.c939 .fiemap = ext4_fiemap,
/linux-5.19.10/fs/iomap/
DMakefile15 fiemap.o \
/linux-5.19.10/include/uapi/linux/
Dfiemap.h28 struct fiemap { struct
Dfs.h209 #define FS_IOC_FIEMAP _IOWR('f', 11, struct fiemap)
/linux-5.19.10/fs/ocfs2/
Dsymlink.c93 .fiemap = ocfs2_fiemap,
/linux-5.19.10/fs/nilfs2/
Dfile.c150 .fiemap = nilfs_fiemap,
Dnamei.c553 .fiemap = nilfs_fiemap,
/linux-5.19.10/tools/include/uapi/linux/
Dfs.h209 #define FS_IOC_FIEMAP _IOWR('f', 11, struct fiemap)
/linux-5.19.10/fs/ext2/
Dfile.c205 .fiemap = ext2_fiemap,
/linux-5.19.10/fs/erofs/
Dnamei.c241 .fiemap = erofs_fiemap,
Dinode.c383 .fiemap = erofs_fiemap,
/linux-5.19.10/fs/overlayfs/
Dinode.c500 if (!realinode->i_op->fiemap) in ovl_fiemap()
504 err = realinode->i_op->fiemap(realinode, fieinfo, start, len); in ovl_fiemap()
650 .fiemap = ovl_fiemap,
/linux-5.19.10/fs/hpfs/
Dfile.c275 .fiemap = hpfs_fiemap,
/linux-5.19.10/fs/ntfs3/
Dnamei.c377 .fiemap = ntfs_fiemap,
Dfile.c1238 .fiemap = ntfs_fiemap,
/linux-5.19.10/Documentation/admin-guide/cifs/
Dtodo.rst21 b) improved sparse file support (fiemap and SEEK_HOLE are implemented
/linux-5.19.10/fs/gfs2/
Dinode.c2144 .fiemap = gfs2_fiemap,
2166 .fiemap = gfs2_fiemap,
2181 .fiemap = gfs2_fiemap,
/linux-5.19.10/fs/xfs/
Dxfs_iops.c1094 .fiemap = xfs_vn_fiemap,
/linux-5.19.10/fs/cifs/
Dinode.c2528 if (server->ops->fiemap) {
2529 rc = server->ops->fiemap(tcon, cfile, fei, start, len);

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