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ovl: index all non-dir on copy up for NFS export
2018-01-24 Amir Goldsteinovl: index all non-dir on copy up for NFS export
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2018-01-24 Amir Goldsteinovl: create ovl_need_index() helper
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2018-01-24 Amir Goldsteinovl: cleanup temp index entries
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2018-01-24 Amir Goldsteinovl: verify directory index entries on mount
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2018-01-24 Amir Goldsteinovl: verify whiteout index entries on mount
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2018-01-24 Amir Goldsteinovl: use directory index entries for consistency verification
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2018-01-24 Amir Goldsteinovl: unbless lower st_ino of unverified origin
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2018-01-24 Amir Goldsteinovl: verify stored origin fh matches lower dir
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2018-01-24 Amir Goldsteinovl: add support for "nfs_export" configuration
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2018-01-24 Amir Goldsteinovl: update documentation of inodes index feature
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2018-01-24 Amir Goldsteinovl: generalize ovl_verify_origin() and helpers
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2018-01-24 Amir Goldsteinovl: simplify arguments to ovl_check_origin_fh()
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2018-01-24 Amir Goldsteinovl: factor out ovl_check_origin_fh()
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2018-01-24 Amir Goldsteinovl: store layer index in ovl_layer
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2018-01-24 Amir Goldsteinovl: force r/o mount when index dir creation fails
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2018-01-24 Amir Goldsteinovl: disable index when no xattr support
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2018-01-24 Amir Goldsteinovl: fix inconsistent d_ino for legacy merge dir
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2018-01-19 Amir Goldsteinovl: take mnt_want_write() for removing impure xattr
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2018-01-19 Amir Goldsteinovl: take mnt_want_write() for work/index dir setup
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2018-01-19 Amir Goldsteinovl: fix another overlay: warning prefix
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2018-01-19 Amir Goldsteinovl: take lower dir inode mutex outside upper sb_writers...
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2018-01-19 Amir Goldsteinovl: fix failure to fsync lower dir
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2018-01-19 Amir Goldsteinovl: hash directory inodes for fsnotify
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-12-14 Amir Goldsteinovl: fix overlay: warning prefix
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-12-11 Amir Goldsteinovl: update ctx->pos on impure dir iteration
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-11-10 Amir Goldsteinovl: remove unneeded arg from ovl_verify_origin()
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-11-09 Amir Goldsteinovl: update cache version of impure parent on rename
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-11-09 Amir Goldsteinovl: relax same fs constraint for constant st_ino
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-11-09 Amir Goldsteinovl: move include of ovl_entry.h into overlayfs.h
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-11-09 Amir Goldsteinovl: no direct iteration for dir with origin xattr
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-11-09 Amir Goldsteinovl: lockdep annotate of nested OVL_I(inode)->lock
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-10-24 Amir Goldsteinovl: do not cleanup unsupported index entries
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-10-24 Amir Goldsteinovl: handle ENOENT on index lookup
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-10-24 Amir Goldsteinovl: fix EIO from lookup of non-indexed upper
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-10-05 Amir Goldsteinovl: fix regression caused by exclusive upper/work...
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-10-05 Amir Goldsteinovl: fix missing unlock_rename() in ovl_do_copy_up()
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-10-05 Amir Goldsteinovl: fix dentry leak in ovl_indexdir_cleanup()
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-10-05 Amir Goldsteinovl: fix dput() of ERR_PTR in ovl_cleanup_index()
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-10-05 Amir Goldsteinovl: fix error value printed in ovl_lookup_index()
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-10-05 Amir Goldsteinovl: fix may_write_real() for overlayfs directories
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-09-12 Amir Goldsteinovl: fix false positive ESTALE on lookup
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-09-01 Amir Goldsteinxfs: fix incorrect log_flushed on fsync
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-07-27 Amir Goldsteinovl: constant d_ino across copy up
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-07-20 Amir Goldsteinovl: check for bad and whiteout index on lookup
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-07-20 Amir Goldsteinovl: do not cleanup directory and whiteout index entries
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-07-13 Amir Goldsteinovl: remove unneeded check for IS_ERR()
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-07-13 Amir Goldsteinovl: fix origin verification of index dir
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-07-13 Amir Goldsteinovl: mark parent impure on ovl_link()
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-07-13 Amir Goldsteinovl: fix random return value on mount
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-07-04 Amir Goldsteinovl: mark parent impure and restore timestamp on ovl_link_up()
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-07-04 Amir Goldsteinovl: document copying layers restrictions with inodes...
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-07-04 Amir Goldsteinovl: cleanup orphan index entries
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-07-04 Amir Goldsteinovl: persistent overlay inode nlink for indexed inodes
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-07-04 Amir Goldsteinovl: implement index dir copy up
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-07-04 Amir Goldsteinovl: factor out ovl_copy_up_inode() helper
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-07-04 Amir Goldsteinovl: defer upper dir lock to tempfile link
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-07-04 Amir Goldsteinovl: cleanup bad and stale index entries on mount
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-07-04 Amir Goldsteinovl: lookup index entry for copy up origin
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-07-04 Amir Goldsteinovl: verify index dir matches upper dir
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-07-04 Amir Goldsteinovl: verify upper root dir matches lower root dir
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-07-04 Amir Goldsteinovl: introduce the inodes index dir feature
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-07-04 Amir Goldsteinovl: generalize ovl_create_workdir()
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-07-04 Amir Goldsteinovl: relax same fs constrain for ovl_check_origin()
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-07-04 Amir Goldsteinovl: get exclusive ownership on upper/work dirs
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-07-04 Amir Goldsteinvfs: introduce inode 'inuse' lock
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-07-04 Amir Goldsteinovl: use ovl_inode mutex to synchronize concurrent...
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-07-04 Amir Goldsteinovl: allocate an ovl_inode struct
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-07-04 Amir Goldsteinovl: fix nlink leak in ovl_rename()
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-06-05 Amir Goldsteintmpfs: generate random sb->s_uuid
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-06-05 Amir Goldsteinxfs: use the common helper uuid_is_null()
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-06-05 Amir Goldsteinmd: namespace private helper names
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-06-05 Amir Goldsteinxfs: use uuid_copy() helper to abstract uuid_t
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-05-29 Amir Goldsteinovl: mark upper merge dir with type origin entries...
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-05-19 Amir Goldsteinovl: mark upper dir with type origin entries "impure"
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-05-19 Amir Goldsteinovl: handle rename when upper doesn't support xattr
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-05-18 Amir Goldsteinovl: check on mount time if upper fs supports setting...
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-05-18 Amir Goldsteinovl: fix creds leak in copy up error path
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-05-05 Amir Goldsteinovl: update documentation w.r.t. constant inode numbers
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-05-05 Amir Goldsteinovl: persistent inode numbers for upper hardlinks
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-05-05 Amir Goldsteinovl: constant st_ino/st_dev across copy up
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-05-05 Amir Goldsteinovl: persistent inode number for directories
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-05-05 Amir Goldsteinovl: set the ORIGIN type flag
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-05-05 Amir Goldsteinovl: lookup non-dir copy-up-origin by file handle
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-05-05 Amir Goldsteinovl: use an auxiliary var for overlay root entry
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-05-05 Amir Goldsteinovl: store file handle of lower inode on copy up
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-05-05 Amir Goldsteinovl: check if all layers are on the same fs
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-04-28 Amir Goldsteinxfs: publish UUID in struct super_block
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-04-26 Amir Goldsteinovl: do not set overlay.opaque on non-dir create
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-04-25 Amir Goldsteinfanotify: don't expose EOPENSTALE to userspace
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-04-20 Amir Goldsteinovl: check IS_APPEND() on real upper inode
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-04-20 Amir Goldsteinvfs: ftruncate check IS_APPEND() on real upper inode
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-03-08 Amir Goldsteinovl: lockdep annotate of nested stacked overlayfs inode...
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-02-07 Amir Goldsteinovl: properly implement sync_filesystem()
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-02-07 Amir Goldsteinovl: concurrent copy up of regular files
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-02-07 Amir Goldsteinovl: introduce copy up waitqueue
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-02-07 Amir Goldsteinovl: copy up regular file using O_TMPFILE
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-02-07 Amir Goldsteinovl: rearrange code in ovl_copy_up_locked()
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-02-07 Amir Goldsteinovl: check if upperdir fs supports O_TMPFILE
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-02-07 Amir Goldsteinvfs: wrap write f_ops with file_{start,end}_write()
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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2017-02-07 Amir Goldsteinvfs: deny copy_file_range() for non regular files
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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