#include "cl_object.h"
-struct ll_file_data *ll_file_data_get(void)
+static int
+ll_put_grouplock(struct inode *inode, struct file *file, unsigned long arg);
+
+static int ll_lease_close(struct obd_client_handle *och, struct inode *inode,
+ bool *lease_broken);
+
+static enum llioc_iter
+ll_iocontrol_call(struct inode *inode, struct file *file,
+ unsigned int cmd, unsigned long arg, int *rcp);
+
+static struct ll_file_data *ll_file_data_get(void)
{
struct ll_file_data *fd;
- OBD_SLAB_ALLOC_PTR_GFP(fd, ll_file_data_slab, __GFP_IO);
+ OBD_SLAB_ALLOC_PTR_GFP(fd, ll_file_data_slab, GFP_NOFS);
if (fd == NULL)
return NULL;
fd->fd_write_failed = false;
return rc;
}
-int ll_md_close(struct obd_export *md_exp, struct inode *inode,
- struct file *file)
+static int ll_md_close(struct obd_export *md_exp, struct inode *inode,
+ struct file *file)
{
struct ll_file_data *fd = LUSTRE_FPRIVATE(file);
struct ll_inode_info *lli = ll_i2info(inode);
return md_set_open_replay_data(md_exp, och, it);
}
-int ll_local_open(struct file *file, struct lookup_intent *it,
- struct ll_file_data *fd, struct obd_client_handle *och)
+static int ll_local_open(struct file *file, struct lookup_intent *it,
+ struct ll_file_data *fd, struct obd_client_handle *och)
{
struct inode *inode = file->f_dentry->d_inode;
struct ll_inode_info *lli = ll_i2info(inode);
/**
* Acquire a lease and open the file.
*/
-struct obd_client_handle *ll_lease_open(struct inode *inode, struct file *file,
- fmode_t fmode, __u64 open_flags)
+static struct obd_client_handle *
+ll_lease_open(struct inode *inode, struct file *file, fmode_t fmode,
+ __u64 open_flags)
{
struct lookup_intent it = { .it_op = IT_OPEN };
struct ll_sb_info *sbi = ll_i2sbi(inode);
OBD_FREE_PTR(och);
return ERR_PTR(rc);
}
-EXPORT_SYMBOL(ll_lease_open);
/**
* Release lease and close the file.
* It will check if the lease has ever broken.
*/
-int ll_lease_close(struct obd_client_handle *och, struct inode *inode,
- bool *lease_broken)
+static int ll_lease_close(struct obd_client_handle *och, struct inode *inode,
+ bool *lease_broken)
{
struct ldlm_lock *lock;
bool cancelled = true;
NULL);
return rc;
}
-EXPORT_SYMBOL(ll_lease_close);
/* Fills the obdo with the attributes for the lsm */
static int ll_lsm_getattr(struct lov_stripe_md *lsm, struct obd_export *exp,
struct md_op_data *op_data;
int rc, lmmsize;
- rc = ll_get_max_mdsize(sbi, &lmmsize);
+ rc = ll_get_default_mdsize(sbi, &lmmsize);
if (rc)
return rc;
return rc;
}
-int ll_get_grouplock(struct inode *inode, struct file *file, unsigned long arg)
+static int
+ll_get_grouplock(struct inode *inode, struct file *file, unsigned long arg)
{
struct ll_inode_info *lli = ll_i2info(inode);
struct ll_file_data *fd = LUSTRE_FPRIVATE(file);
* Get size for inode for which FIEMAP mapping is requested.
* Make the FIEMAP get_info call and returns the result.
*/
-int ll_do_fiemap(struct inode *inode, struct ll_user_fiemap *fiemap,
- int num_bytes)
+static int ll_do_fiemap(struct inode *inode, struct ll_user_fiemap *fiemap,
+ size_t num_bytes)
{
struct obd_export *exp = ll_i2dtexp(inode);
struct lov_stripe_md *lsm = NULL;
struct ll_fiemap_info_key fm_key = { .name = KEY_FIEMAP, };
- int vallen = num_bytes;
+ __u32 vallen = num_bytes;
int rc;
/* Checks for fiemap flags */
if (get_user(extent_count,
&((struct ll_user_fiemap __user *)arg)->fm_extent_count))
return -EFAULT;
+
+ if (extent_count >=
+ (SIZE_MAX - sizeof(*fiemap_s)) / sizeof(struct ll_fiemap_extent))
+ return -EINVAL;
num_bytes = sizeof(*fiemap_s) + (extent_count *
sizeof(struct ll_fiemap_extent));
return rc;
}
-long ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+static long
+ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
struct inode *inode = file->f_dentry->d_inode;
struct ll_file_data *fd = LUSTRE_FPRIVATE(file);
}
-loff_t ll_file_seek(struct file *file, loff_t offset, int origin)
+static loff_t ll_file_seek(struct file *file, loff_t offset, int origin)
{
struct inode *inode = file->f_dentry->d_inode;
loff_t retval, eof = 0;
return retval;
}
-int ll_flush(struct file *file, fl_owner_t id)
+static int ll_flush(struct file *file, fl_owner_t id)
{
struct inode *inode = file->f_dentry->d_inode;
struct ll_inode_info *lli = ll_i2info(inode);
/**
* Called to make sure a portion of file has been written out.
- * if @local_only is not true, it will send OST_SYNC RPCs to ost.
+ * if @mode is not CL_FSYNC_LOCAL, it will send OST_SYNC RPCs to OST.
*
* Return how many pages have been written.
*/
if (!err)
ptlrpc_req_finished(req);
- if (datasync && S_ISREG(inode->i_mode)) {
+ if (S_ISREG(inode->i_mode)) {
struct ll_file_data *fd = LUSTRE_FPRIVATE(file);
- err = cl_sync_file_range(inode, 0, OBD_OBJECT_EOF,
- CL_FSYNC_ALL, 0);
+ err = cl_sync_file_range(inode, start, end, CL_FSYNC_ALL, 0);
if (rc == 0 && err < 0)
rc = err;
if (rc < 0)
return rc;
}
-int ll_file_flock(struct file *file, int cmd, struct file_lock *file_lock)
+static int
+ll_file_flock(struct file *file, int cmd, struct file_lock *file_lock)
{
struct inode *inode = file->f_dentry->d_inode;
struct ll_sb_info *sbi = ll_i2sbi(inode);
ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_FLOCK, 1);
- if (file_lock->fl_flags & FL_FLOCK) {
+ if (file_lock->fl_flags & FL_FLOCK)
LASSERT((cmd == F_SETLKW) || (cmd == F_SETLK));
- /* flocks are whole-file locks */
- flock.l_flock.end = OFFSET_MAX;
- /* For flocks owner is determined by the local file descriptor*/
- flock.l_flock.owner = (unsigned long)file_lock->fl_file;
- } else if (file_lock->fl_flags & FL_POSIX) {
- flock.l_flock.owner = (unsigned long)file_lock->fl_owner;
- flock.l_flock.start = file_lock->fl_start;
- flock.l_flock.end = file_lock->fl_end;
- } else {
+ else if (!(file_lock->fl_flags & FL_POSIX))
return -EINVAL;
- }
+
+ flock.l_flock.owner = (unsigned long)file_lock->fl_owner;
flock.l_flock.pid = file_lock->fl_pid;
+ flock.l_flock.start = file_lock->fl_start;
+ flock.l_flock.end = file_lock->fl_end;
/* Somewhat ugly workaround for svc lockd.
* lockd installs custom fl_lmops->lm_compare_owner that checks
return rc;
}
-int ll_file_noflock(struct file *file, int cmd, struct file_lock *file_lock)
+static int
+ll_file_noflock(struct file *file, int cmd, struct file_lock *file_lock)
{
return -ENOSYS;
}
if (!S_ISREG(inode->i_mode) && !S_ISDIR(inode->i_mode))
return 0;
} else if (rc != 0) {
- CERROR("%s: revalidate FID "DFID" error: rc = %d\n",
- ll_get_fsname(inode->i_sb, NULL, 0),
- PFID(ll_inode2fid(inode)), rc);
+ CDEBUG_LIMIT((rc == -EACCES || rc == -EIDRM) ? D_INFO : D_ERROR,
+ "%s: revalidate FID "DFID" error: rc = %d\n",
+ ll_get_fsname(inode->i_sb, NULL, 0),
+ PFID(ll_inode2fid(inode)), rc);
}
return rc;
}
-int __ll_inode_revalidate_it(struct dentry *dentry, struct lookup_intent *it,
- __u64 ibits)
+static int __ll_inode_revalidate(struct dentry *dentry, __u64 ibits)
{
struct inode *inode = dentry->d_inode;
struct ptlrpc_request *req = NULL;
int ealen = 0;
if (S_ISREG(inode->i_mode)) {
- rc = ll_get_max_mdsize(sbi, &ealen);
+ rc = ll_get_default_mdsize(sbi, &ealen);
if (rc)
return rc;
valid |= OBD_MD_FLEASIZE | OBD_MD_FLMODEASIZE;
return rc;
}
-int ll_inode_revalidate_it(struct dentry *dentry, struct lookup_intent *it,
- __u64 ibits)
+static int ll_inode_revalidate(struct dentry *dentry, __u64 ibits)
{
struct inode *inode = dentry->d_inode;
int rc;
- rc = __ll_inode_revalidate_it(dentry, it, ibits);
+ rc = __ll_inode_revalidate(dentry, ibits);
if (rc != 0)
return rc;
return rc;
}
-int ll_getattr_it(struct vfsmount *mnt, struct dentry *de,
- struct lookup_intent *it, struct kstat *stat)
+int ll_getattr(struct vfsmount *mnt, struct dentry *de, struct kstat *stat)
{
struct inode *inode = de->d_inode;
struct ll_sb_info *sbi = ll_i2sbi(inode);
struct ll_inode_info *lli = ll_i2info(inode);
int res = 0;
- res = ll_inode_revalidate_it(de, it, MDS_INODELOCK_UPDATE |
- MDS_INODELOCK_LOOKUP);
+ res = ll_inode_revalidate(de, MDS_INODELOCK_UPDATE |
+ MDS_INODELOCK_LOOKUP);
ll_stats_ops_tally(sbi, LPROC_LL_GETATTR, 1);
if (res)
return 0;
}
-int ll_getattr(struct vfsmount *mnt, struct dentry *de, struct kstat *stat)
-{
- struct lookup_intent it = { .it_op = IT_GETATTR };
- return ll_getattr_it(mnt, de, &it, stat);
-}
-
-int ll_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
- __u64 start, __u64 len)
+static int ll_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
+ __u64 start, __u64 len)
{
int rc;
size_t num_bytes;
fiemap->fm_extent_count = fieinfo->fi_extents_max;
fiemap->fm_start = start;
fiemap->fm_length = len;
- memcpy(&fiemap->fm_extents[0], fieinfo->fi_extents_start,
- sizeof(struct ll_fiemap_extent));
+ if (extent_count > 0)
+ memcpy(&fiemap->fm_extents[0], fieinfo->fi_extents_start,
+ sizeof(struct ll_fiemap_extent));
rc = ll_do_fiemap(inode, fiemap, num_bytes);
fieinfo->fi_flags = fiemap->fm_flags;
fieinfo->fi_extents_mapped = fiemap->fm_mapped_extents;
- memcpy(fieinfo->fi_extents_start, &fiemap->fm_extents[0],
- fiemap->fm_mapped_extents * sizeof(struct ll_fiemap_extent));
+ if (extent_count > 0)
+ memcpy(fieinfo->fi_extents_start, &fiemap->fm_extents[0],
+ fiemap->fm_mapped_extents *
+ sizeof(struct ll_fiemap_extent));
OBD_FREE_LARGE(fiemap, num_bytes);
return rc;
}
-struct posix_acl * ll_get_acl(struct inode *inode, int type)
+struct posix_acl *ll_get_acl(struct inode *inode, int type)
{
struct ll_inode_info *lli = ll_i2info(inode);
struct posix_acl *acl = NULL;
* need to do it before permission check. */
if (inode == inode->i_sb->s_root->d_inode) {
- struct lookup_intent it = { .it_op = IT_LOOKUP };
-
- rc = __ll_inode_revalidate_it(inode->i_sb->s_root, &it,
- MDS_INODELOCK_LOOKUP);
+ rc = __ll_inode_revalidate(inode->i_sb->s_root,
+ MDS_INODELOCK_LOOKUP);
if (rc)
return rc;
}
EXPORT_SYMBOL(ll_iocontrol_register);
EXPORT_SYMBOL(ll_iocontrol_unregister);
-enum llioc_iter ll_iocontrol_call(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg, int *rcp)
+static enum llioc_iter
+ll_iocontrol_call(struct inode *inode, struct file *file,
+ unsigned int cmd, unsigned long arg, int *rcp)
{
enum llioc_iter ret = LLIOC_CONT;
struct llioc_data *data;
* layout here. Please note that we can't use the LVB buffer in
* completion AST because it doesn't have a large enough buffer */
oc = ll_mdscapa_get(inode);
- rc = ll_get_max_mdsize(sbi, &lmmsize);
+ rc = ll_get_default_mdsize(sbi, &lmmsize);
if (rc == 0)
rc = md_getxattr(sbi->ll_md_exp, ll_inode2fid(inode), oc,
OBD_MD_FLXATTR, XATTR_NAME_LOV, NULL, 0,
return rc;
body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
- if (body == NULL || body->eadatasize > lmmsize)
+ if (body == NULL)
GOTO(out, rc = -EPROTO);
lmmsize = body->eadatasize;
if (lvb_ready) {
/* layout_gen must be valid if layout lock is not
* cancelled and stripe has already set */
- *gen = lli->lli_layout_gen;
+ *gen = ll_layout_version_get(lli);
rc = 0;
}
GOTO(out, rc);
};
int rc;
- *gen = lli->lli_layout_gen;
- if (!(sbi->ll_flags & LL_SBI_LAYOUT_LOCK))
+ *gen = ll_layout_version_get(lli);
+ if (!(sbi->ll_flags & LL_SBI_LAYOUT_LOCK) || *gen != LL_LAYOUT_GEN_NONE)
return 0;
/* sanity checks */
LASSERT(fid_is_sane(ll_inode2fid(inode)));
LASSERT(S_ISREG(inode->i_mode));
- /* mostly layout lock is caching on the local side, so try to match
- * it before grabbing layout lock mutex. */
- mode = ll_take_md_lock(inode, MDS_INODELOCK_LAYOUT, &lockh, 0,
- LCK_CR | LCK_CW | LCK_PR | LCK_PW);
- if (mode != 0) { /* hit cached lock */
- rc = ll_layout_lock_set(&lockh, mode, inode, gen, false);
- if (rc == 0)
- return 0;
-
- /* better hold lli_layout_mutex to try again otherwise
- * it will have starvation problem. */
- }
-
/* take layout lock mutex to enqueue layout lock exclusively. */
mutex_lock(&lli->lli_layout_mutex);
again:
- /* try again. Maybe somebody else has done this. */
+ /* mostly layout lock is caching on the local side, so try to match
+ * it before grabbing layout lock mutex. */
mode = ll_take_md_lock(inode, MDS_INODELOCK_LAYOUT, &lockh, 0,
LCK_CR | LCK_CW | LCK_PR | LCK_PW);
if (mode != 0) { /* hit cached lock */
git.openpandora.org / pandora-kernel.git / commitdiff